BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in speckle-type POZ protein (SPOP) and similar proteins; This family includes speckle-type POZ protein (SPOP), speckle-type POZ protein-like (SPOPL), TD and POZ domain-containing proteins (TDPOZ), Drosophila melanogaster protein roadkill and similar proteins. Both, SPOP and SPOPL, serve as adaptors of cullin-RING-based BCR (BTB-CUL3-RBX1) E3 ubiquitin-protein ligase complexes that mediate the ubiquitination and proteasomal degradation of target proteins. TDPOZ is a family of bipartite animal and plant proteins that contain a tumor necrosis factor receptor-associated factor (TRAF) domain (TD) and a POZ/BTB domains. TDPOZ proteins may be nuclear scaffold proteins probably involved in transcription regulation in early development and other cellular processes. Drosophila melanogaster protein roadkill, also called Hh-induced MATH and BTB domain-containing protein (HIB), is a hedgehog-induced BTB protein that modulates hedgehog signaling by degrading Ci/Gli transcription factor. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 182 PECRLADELGGLWENSRFTDCCLCVAGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCFIYTG 261
Cdd:cd18279     1 PECRLAEDLGNLWENSRFTDCCLCVGGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVDPEVFKEMMRFIYTG 80

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|
gi 1666305161 262 KAPNLDKMADDLLAAADKYALERLKVMCEDALCSNLSVEN 301
Cdd:cd18279    81 KAPNLDKMADDLLAAADKYALERLKVMCEDALCSNLSVEN 120

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in speckle-type POZ protein (SPOP) and similar proteins; This family includes speckle-type POZ protein (SPOP), speckle-type POZ protein-like (SPOPL), TD and POZ domain-containing proteins (TDPOZ), Drosophila melanogaster protein roadkill and similar proteins. Both, SPOP and SPOPL, serve as adaptors of cullin-RING-based BCR (BTB-CUL3-RBX1) E3 ubiquitin-protein ligase complexes that mediate the ubiquitination and proteasomal degradation of target proteins. TDPOZ is a family of bipartite animal and plant proteins that contain a tumor necrosis factor receptor-associated factor (TRAF) domain (TD) and a POZ/BTB domains. TDPOZ proteins may be nuclear scaffold proteins probably involved in transcription regulation in early development and other cellular processes. Drosophila melanogaster protein roadkill, also called Hh-induced MATH and BTB domain-containing protein (HIB), is a hedgehog-induced BTB protein that modulates hedgehog signaling by degrading Ci/Gli transcription factor. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 182 PECRLADELGGLWENSRFTDCCLCVAGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCFIYTG 261
Cdd:cd18279     1 PECRLAEDLGNLWENSRFTDCCLCVGGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVDPEVFKEMMRFIYTG 80

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|
gi 1666305161 262 KAPNLDKMADDLLAAADKYALERLKVMCEDALCSNLSVEN 301
Cdd:cd18279    81 KAPNLDKMADDLLAAADKYALERLKVMCEDALCSNLSVEN 120

BTB/POZ domain; The BTB (for BR-C, ttk and bab) or POZ (for Pox virus and Zinc finger) domain is present near the N-terminus of a fraction of zinc finger (pfam00096) proteins and in proteins that contain the pfam01344 motif such as Kelch and a family of pox virus proteins. The BTB/POZ domain mediates homomeric dimerization and in some instances heteromeric dimerization. The structure of the dimerized PLZF BTB/POZ domain has been solved and consists of a tightly intertwined homodimer. The central scaffolding of the protein is made up of a cluster of alpha-helices flanked by short beta-sheets at both the top and bottom of the molecule. POZ domains from several zinc finger proteins have been shown to mediate transcriptional repression and to interact with components of histone deacetylase co-repressor complexes including N-CoR and SMRT. The POZ or BTB domain is also known as BR-C/Ttk or ZiN.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 190 LGGLWENSRFTDCCLCVAGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCFIYTGKAPNlDKM 269
Cdd:pfam00651   1 LNELREQGELCDVTLVVGDKEFRAHKAVLAACSPYFKALFSGQESESSVSEITLDDVSPEDFEALLEFMYTGKLIS-EEN 79

                          90       100
                  ....*....|....*....|....*...
gi 1666305161 270 ADDLLAAADKYALERLKVMCEDALCSNL 297
Cdd:pfam00651  80 VDDLLAAADKLQIPSLVDKCEEFLIKSL 107

kelch-like protein; Provisional

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 195 ENSRFTDCCLCVA--GQEFQAHKAILAARSPVFSAMFEhemEESKKNRVEINDVEpEVFKEMMCFIYTGKAPNLDKMADD 272
Cdd:PHA03098    5 ELQKFCDESIIIVngGGIIKVHKIILSSSSEYFKKMFK---NNFKENEINLNIDY-DSFNEVIKYIYTGKINITSNNVKD 80

                          90       100       110       120       130
                  ....*....|....*....|....*....|....*....|....*....|...
gi 1666305161 273 LLAAADKYALERLKVMCEDALCSNLSVENAAEILILADLHSADQLKTQAVDFI 325
Cdd:PHA03098   81 ILSIANYLIIDFLINLCINYIIKIIDDNNCIDIYRFSFFYGCKKLYSAAYNYI 133

MATH domain; This motif has been called the Meprin And TRAF-Homology (MATH) domain. This domain is hugely expanded in the nematode C. elegans.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161  65 LKWCLRVNPKG--------LDEESKDylslylllvsCPKSEVRAKFKFSILNAKGeetKAMESQRAYRFVQGKDWGFKKF 136
Cdd:pfam00917  23 IPWRLQIYRKGgflglylhCDKEEEL----------ERGWSIETEFTLKLVSSNG---KSVTKTDTHVFEKPKGWGWGKF 89

                          90       100
                  ....*....|....*....|
gi 1666305161 137 IRRDFLldeANGLLPDDKLT 156
Cdd:pfam00917  90 ISWDDL---EKDYLVDDSIT 106

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in speckle-type POZ protein (SPOP) and similar proteins; This family includes speckle-type POZ protein (SPOP), speckle-type POZ protein-like (SPOPL), TD and POZ domain-containing proteins (TDPOZ), Drosophila melanogaster protein roadkill and similar proteins. Both, SPOP and SPOPL, serve as adaptors of cullin-RING-based BCR (BTB-CUL3-RBX1) E3 ubiquitin-protein ligase complexes that mediate the ubiquitination and proteasomal degradation of target proteins. TDPOZ is a family of bipartite animal and plant proteins that contain a tumor necrosis factor receptor-associated factor (TRAF) domain (TD) and a POZ/BTB domains. TDPOZ proteins may be nuclear scaffold proteins probably involved in transcription regulation in early development and other cellular processes. Drosophila melanogaster protein roadkill, also called Hh-induced MATH and BTB domain-containing protein (HIB), is a hedgehog-induced BTB protein that modulates hedgehog signaling by degrading Ci/Gli transcription factor. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 182 PECRLADELGGLWENSRFTDCCLCVAGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCFIYTG 261
Cdd:cd18279     1 PECRLAEDLGNLWENSRFTDCCLCVGGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVDPEVFKEMMRFIYTG 80

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|
gi 1666305161 262 KAPNLDKMADDLLAAADKYALERLKVMCEDALCSNLSVEN 301
Cdd:cd18279    81 KAPNLDKMADDLLAAADKYALERLKVMCEDALCSNLSVEN 120

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in speckle-type POZ protein (SPOP); SPOP, also called HIB homolog 1 or Roadkill homolog 1, is a novel nuclear speckle-type protein which serves as an adaptor of a cullin-RING-based BCR (BTB-CUL3-RBX1) E3 ubiquitin-protein ligase complex that mediates the ubiquitination and proteasomal degradation of target proteins, such as BRMS1, DAXX, PDX1/IPF1, GLI2 and GLI3. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 178 MVKVPECRLADELGGLWENSRFTDCCLCVAGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCF 257
Cdd:cd18342     1 MVKVPECRLADELGGLWENSRFTDCCLCVAGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCF 80

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*
gi 1666305161 258 IYTGKAPNLDKMADDLLAAADKYALERLKVMCEDALCSNLSVENA 302
Cdd:cd18342    81 IYTGKAPNLDKMADDLLAAADKYALERLKVMCEDALCSNLSVENA 125

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in TD and POZ domain-containing proteins (TDPOZ); TDPOZ is a family of bipartite animal and plant proteins that contains a tumor necrosis factor receptor-associated factor (TRAF) domain (TD) and a POZ/BTB domain. TDPOZ proteins may be nuclear scaffold proteins probably involved in transcription regulation in early development and other cellular processes. This subfamily contains only mammalian members. Plant TDPOZ proteins contain a MATH domain at the N-terminal region and are named "BTB/POZ and MATH domain-containing proteins (BPM)", not included in this subfamily. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 179 VKVPECRLADELGGLWENSRFTDCCLCVAGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCFI 258
Cdd:cd18344     3 IKDPRHMLTDDLGELWENSLFTDCCLLVAGHEFRAHKAILAARSPVFRAMFEHEMEERLKNPIEIHDLDPQVFKEMMGFI 82

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*.
gi 1666305161 259 YTGKAPNLD--KMADDLLAAADKYALERLKVMCEDALCSNLSVENA 302
Cdd:cd18344    83 YTGKAPHLHshSMACDVLAAADKYGLEGLKVLCEDALCRNLSVENA 128

BACK (BTB and C-terminal Kelch) domain found in speckle-type POZ protein-like (SPOPL); SPOPL, also termed HIB homolog 2, or Roadkill homolog 2, is a component of a cullin-RING-based BCR (BTB-CUL3-RBX1) E3 ubiquitin-protein ligase complex that mediates the ubiquitination and subsequent proteasomal degradation of target proteins. The complexes containing homodimeric SPOPL or the heterodimer formed by speckle-type POZ protein (SPOP) and SPOPL are less efficient than ubiquitin ligase complexes containing only SPOP.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 297 LSVENAAEILILADLHSADQLKTQAVDFIN------------------YHASDVLETSGWKSMVVSHPHLVAEAYRSLAS 358
Cdd:cd18519     1 LSVENVADTLILADLHSAEQLKAQAIDFINrcsvlrqlgckdgknwnsNHATDIMETAGWKSMIHSHPHLVAEAFRALAS 80

                          90
                  ....*....|....*.
gi 1666305161 359 AQCPFLGPPRKRLKQS 374
Cdd:cd18519    81 AQCPPFGIPRKRLKQS 96

BTB/POZ domain; The BTB (for BR-C, ttk and bab) or POZ (for Pox virus and Zinc finger) domain is present near the N-terminus of a fraction of zinc finger (pfam00096) proteins and in proteins that contain the pfam01344 motif such as Kelch and a family of pox virus proteins. The BTB/POZ domain mediates homomeric dimerization and in some instances heteromeric dimerization. The structure of the dimerized PLZF BTB/POZ domain has been solved and consists of a tightly intertwined homodimer. The central scaffolding of the protein is made up of a cluster of alpha-helices flanked by short beta-sheets at both the top and bottom of the molecule. POZ domains from several zinc finger proteins have been shown to mediate transcriptional repression and to interact with components of histone deacetylase co-repressor complexes including N-CoR and SMRT. The POZ or BTB domain is also known as BR-C/Ttk or ZiN.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 190 LGGLWENSRFTDCCLCVAGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCFIYTGKAPNlDKM 269
Cdd:pfam00651   1 LNELREQGELCDVTLVVGDKEFRAHKAVLAACSPYFKALFSGQESESSVSEITLDDVSPEDFEALLEFMYTGKLIS-EEN 79

                          90       100
                  ....*....|....*....|....*...
gi 1666305161 270 ADDLLAAADKYALERLKVMCEDALCSNL 297
Cdd:pfam00651  80 VDDLLAAADKLQIPSLVDKCEEFLIKSL 107

BACK (BTB and C-terminal Kelch) domain found in speckle-type POZ protein (SPOP) and similar proteins; This family includes speckle-type POZ protein (SPOP), speckle-type POZ protein-like (SPOPL), TD and POZ domain-containing proteins (TDPOZ), Drosophila melanogaster protein roadkill, and similar proteins. Both SPOP and SPOPL serve as adaptors of cullin-RING-based BCR (BTB-CUL3-RBX1) E3 ubiquitin-protein ligase complex that mediates the ubiquitination and proteasomal degradation of target proteins. TDPOZ is a family of bipartite animal and plant proteins that contain a tumor necrosis factor receptor-associated factor (TRAF) domain (TD) and a POZ/BTB domain. TDPOZ proteins may be nuclear scaffold proteins involved in transcription regulation in early development and other cellular processes. Drosophila melanogaster protein roadkill, also termed Hh-induced MATH and BTB domain-containing protein (HIB), is a hedgehog-induced BTB protein that modulates hedgehog signaling by degrading Ci/Gli transcription factor.

                          10        20        30        40        50
                  ....*....|....*....|....*....|....*....|....*....|....*....
gi 1666305161 297 LSVENAAEILILADLHSADQLKTQAVDFINYHASDVLETSGWKSMVVSHPHLVAEAYRS 355
Cdd:cd14821     1 LSVENAAEVLVLADLHSAEQLKTHAIDFINSHATDVMETEGWKSMVRSHPHLVAEAFRA 59

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in zinc finger and BTB domain-containing (ZBTB) proteins, Kelch-like (KLHL) proteins, and similar proteins; This family includes a variety of BTB/POZ domain-containing proteins, such as zinc finger and BTB domain-containing (ZBTB) proteins and Kelch-like (KLHL) proteins. They have diverse functions, such as transcriptional regulation, chromatin remodeling, protein degradation and cytoskeletal regulation. Many BTB/POZ proteins contain one or two additional domains, such as kelch repeats, zinc-finger domains, FYVE (Fab1, YOTB, Vac1, and EEA1) fingers, or ankyrin repeats. These special additional domains or interaction partners provide unique characteristics and functions to BTB/POZ proteins. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 199 FTDCCLCVAGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCFIYTGKAPNLDKMADDLLAAAD 278
Cdd:cd18186     1 LCDVTLVVGGREFPAHRAVLAARSPYFRAMFSSGMKESSSSEIELDDVSPEAFEALLDYIYTGELELSEENVEELLAAAD 80

                  ..
gi 1666305161 279 KY 280
Cdd:cd18186    81 KL 82

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in BTB/POZ domain-containing protein 19 (BTBD19); BTBD19 is a BTB domain-containing protein. Its function remains unclear. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 186 LADELGGLWENSRFTDCCLCV--AGQEFQAHKAILAARSPVFSAMF-EHEMEESKKNRVEINDVEPEVFKEMMCFIYTGK 262
Cdd:cd18294     1 FAADMKSLINNPEFSDVKFLVgpERQEIFAHKCILAARCEVFRAMFlTGPQKESTQSPLVLSDIEPEVFRAVLEFIYTNC 80

                          90       100
                  ....*....|....*....|....*...
gi 1666305161 263 APNLDKMADDLLAAADKYALERLKVMCE 290
Cdd:cd18294    81 VTLSNHTVIEVLAAAVEYGLDELRKLCE 108

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in Ankyrin repeat and BTB/POZ domain-containing protein 2 (ABTB2) and similar proteins; This family includes ABTB2, BTBD11, plant ARM repeat protein interacting with ABF2 (ARIA), and similar proteins. ABTB2, also called bood POZ containing gene type 2 (BPOZ-2), is a scaffold protein that controls the degradation of many biological proteins ranging from embryonic development to tumor progression. It may be involved in the initiation of hepatocyte growth. ABTB2 functions as an adaptor protein for the E3 ubiquitin ligase scaffold protein Cullin-3. It directly binds to eukaryotic elongation factor 1A1 (eEF1A1) to promote eEF1A1 ubiquitylation and degradation, and prevent translation. The BTBD11 gene has been recently identified as an all-trans retinoic acid (atRA)-responsive gene that lies downstream of atRA and its receptors in the regulation of neurite outgrowth and cell adhesion in neural as well as non-neural tissues. ARIA is an armadillo (ARM) repeat and BTB domain-containing protein that acts as a positive regulator of ABA response via the modulation of the transcriptional activity of ABF2. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 195 ENSRFTDCCLCVAGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCFIYTGKAPNLDKMAD--- 271
Cdd:cd18297     8 NNPEMSDVTFLVEGRPFYAHKIVLVTASDRFKSMLSSGSTEAQTPVIEIPDIRYDIFQLMMQYLYTGGVESLDVAQDdal 87

                          90       100       110
                  ....*....|....*....|....*....|
gi 1666305161 272 DLLAAADKYALERLKVMCEDALCSNLSVEN 301
Cdd:cd18297    88 ELLRAASFFQLDGLKRHCEILLSQQIDLDN 117

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in BTB/POZ domain-containing protein 9 (BTBD9); BTBD9 is a risk factor for Restless Legs Syndrome (RLS) encoding a Cullin-3 substrate adaptor. The BTBD9 gene may be associated with antipsychotic-induced RLS in schizophrenia. Mutations in BTBD9 lead to reduced dopamine, increased locomotion and sleep fragmentation. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 185 RLADELGGLWENSRFTDCCLCVAGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCFIYTGKAp 264
Cdd:cd18287     8 FLSEDIGALFLNEEYSDVTFVVEEKRFPAHRVILAARSEYFRALLYGGMRESQQSEIELKDTNAEAFKALLKYIYTGRL- 86

                          90       100       110
                  ....*....|....*....|....*....|....*..
gi 1666305161 265 NLDKMAD----DLLAAADKYALERLkvmcEDALCSNL 297
Cdd:cd18287    87 TLTDLKEdvllDVLGLAHQYGFEEL----EAAISDYL 119

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in Kelch-like protein 21 (KLHL21); KLHL21 is a substrate-specific adaptor of a BCR (BTB-CUL3-RBX1) E3 ubiquitin-protein ligase complex required for efficient chromosome alignment and cytokinesis. The BCR(KLHL21) E3 ubiquitin ligase complex regulates localization of the chromosomal passenger complex (CPC) from chromosomes to the spindle midzone in anaphase and mediates the ubiquitination of aurora B. KLHL21 also targets IkappaB kinase-beta to regulate nuclear factor kappa-light chain enhancer of activated B cells (NF-kappaB) signaling negatively. It contains a BTB domain and kelch repeats, characteristics of a kelch family protein. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 193 LWENSRFTDCCLCVAGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCFIYTGKAPNLDKMADD 272
Cdd:cd18250    15 LRAERKFFDVTLCAGGREFPCHRTVLAAASSYFRAMFAGELRESRADRVVLHGVSAEILGLLLDFSYTGRVTVTQDNVEA 94

                          90       100       110
                  ....*....|....*....|....*....|
gi 1666305161 273 LLAAADKYALERLKVMCEDALCSNLSVENA 302
Cdd:cd18250    95 LLRAADLFQFPSVKEACCAYLQQRLDVSNC 124

second BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in Ankyrin repeat and BTB/POZ domain-containing protein 1 (ABTB1); ABTB1, also called elongation factor 1A-binding protein or bood POZ containing gene type 1 (BPOZ-1), is an anti-proliferative factor that may act as a mediator of the phosphatase and tensin homolog (PTEN) growth-suppressive signaling pathway. It may play a role in developmental processes. ABTB1 contains an ankyrin repeat and two BTB domains. This model corresponds to the second BTB domain. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 199 FTDCCLCVAGQEFQAHKAILAARSPVFSAMFEHEMEESKKNR-----VEINDVEPEVFKEMMCFIYTGKAPNLDKMADDL 273
Cdd:cd18296    17 FPDVCFQVEGHRFPCHKAFFCGRSDYFKALLRDHFAESEENNgsipvVTLHDVSPEVFAIVLYYIYTDDTDLPPENAYDV 96

                          90       100
                  ....*....|....*....|....
gi 1666305161 274 LAAADKYALERLKVMCEDALCSNL 297
Cdd:cd18296    97 LYVADMYLLPGLKRLCGTVLAQSL 120

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in Kelch-like protein 7 (KLHL7); KLHL7 is a component of a Cul3-based E3 ubiquitin ligase complex and is involved in the ubiquitination of target proteins for proteasome-mediated degradation. Mutations in KLHL7 causes autosomal-dominant retinitis pigmentosa. It contains a BTB domain and kelch repeats, characteristics of a kelch family protein. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 185 RLADELG---GLWENSRFTDCCLCVAGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCFIYTG 261
Cdd:cd18237     4 LLADFMGvmnNMRKQKTLCDVILIVEGREIKAHRVVLAAASHFFHLMFTSNMTESKSSEVELKDAEPDIIELLVEFAYTA 83

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|
gi 1666305161 262 KAPNLDKMADDLLAAADKYALERLKVMCEDALCSNLSVEN 301
Cdd:cd18237    84 RISVNSNNVQSLLDAANQYQIEPVKKMCVDFLKEQLDASN 123

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in Kelch-like protein 40 (KLHL40); KLHL40, also called Kelch repeat and BTB domain-containing protein 5 (KBTBD5) or sarcosynapsin, is a substrate-specific adaptor of a BCR (BTB-CUL3-RBX1) E3 ubiquitin ligase complex that acts as a key regulator of skeletal muscle development. Mutations in KLHL40 may cause severe autosomal-recessive nemaline myopathy. KLHL40 contains a BTB domain and kelch repeats, characteristics of a kelch family protein. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 186 LADELGGLWENSRFTDCCLCVAGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCFIYTGKAPN 265
Cdd:cd18340    14 LQDGLKDLLDHNKFVDCVLKIKEKEFPCHRLVLAACSPYFRAMFLSDLEESKKREIVLEDVDPDVMGKILHYIYTSEIEI 93

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|
gi 1666305161 266 LDKMADDLLAAADKYALERLKVMCEDALCSNLSVENAAEI 305
Cdd:cd18340    94 TEQNVQDIFAAANMFQIPSIFTVCVSFLQKRLCLSNCLAI 133

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in Kelch-like proteins, KLHL40 and KLHL41; This family includes Kelch-like proteins, KLHL40 and KLHL41. KLHL40 is a substrate-specific adaptor of a BCR (BTB-CUL3-RBX1) E3 ubiquitin ligase complex that acts as a key regulator of skeletal muscle development. KLHL41 is a novel kelch related protein that is involved in pseudopod elongation in transformed cells. They both contain a BTB domain and kelch repeats, characteristics of a kelch family protein. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 186 LADELGGLWENSRFTDCCLCVAGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCFIYTGKAPN 265
Cdd:cd18269    14 LQDGLKDLLDENKFVDCVLKIGDKEFPCHRLVLAACSPYFRAMFLSDLEESKKKEVVLEDVDPDVMGMILKYLYTSEIDL 93

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|
gi 1666305161 266 LDKMADDLLAAADKYALERLKVMCEDALCSNLSVENAAEI 305
Cdd:cd18269    94 NDQNVQDIFALASRFQIPSIFTVCVSYLQKRLSLSNCLAI 133

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in Influenza virus NS1A-binding protein (NS1-BP); NS1-BP is also called NS1-binding protein, aryl hydrocarbon receptor-associated protein 3 (ARA3), or IVNS1ABP. It is a novel protein that interacts with the influenza A virus nonstructural NS1 protein, which is relocalized in the nuclei of infected cells. It plays a role in cell division and in the dynamic organization of the actin skeleton as a stabilizer of actin filaments by association with F-actin through its kelch repeats. It also interacts with alpha-enolase/MBP-1 and is involved in c-Myc gene transcriptional control. NS1-BP contains BTB and BACK domains at the N-terminal region and kelch repeats at the C-terminal region. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 196 NSRFTDCCLCVAGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCFIYTGKapnLDKMAD---D 272
Cdd:cd18306    15 NRQFCDVILQVGGHEIPAHRAVLACASPYLFELFSSDSDGESILTVKLDGLDPDAVEVLVNYAYTSR---LEVPADlvkS 91

                          90       100       110
                  ....*....|....*....|....*....|...
gi 1666305161 273 LLAAADKYALERLKVMCEDALCSNLSVENAAEI 305
Cdd:cd18306    92 VYSAAKKLKMDRVKKACGDFLLEKLTPQNCIGI 124

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in Kelch-like protein 30 (KLHL30); KLHL30 contains a BTB domain and kelch repeats, characteristics of a kelch family protein. Its function remains unclear. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1666305161 188 DELGGLWENSRFTDCCLCVAGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCFIYTGK 262
Cdd:cd18259    21 DGLQTLRSNPKLSDVTLLVGGREFPCHRSVLALCSHYFNAMFTGDFVESISARVEIKDVDPAVMESLIDFAYTGK 95

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in Kelch repeat and BTB domain-containing proteins KBTBD6 and KBTBD7; KBTBD6 and KBTBD7 are substrate adaptors of a cullin-3 RING ubiquitin ligase complex that mediates ubiquitylation and proteasomal degradation of T-lymphoma and metastasis gene 1 (TIAM1), a RAC1-specific guanine exchange factor (GEF), by cooperating with gamma-aminobutyric acid receptor-associated proteins (GABARAP). KBTBD7 may also act as a new transcriptional activator in mitogen-activated protein kinase (MAPK) signaling. They both contain a BTB domain and kelch repeats, characteristics of a kelch family protein. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 186 LADELGGLWENSRFTDCCLCVA--------GQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCF 257
Cdd:cd18273    13 LLAQLKSFYDARLLTDVTIEVNgpgsgpgsGRLFPCNRNVLAAASPYFKSMFTGGLYESKQETVTIHDVDSESMALIIDY 92

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|....*....
gi 1666305161 258 IYTGKAPNLDKMADDLLAAADKYALERLKVMCEDALCSNLSVENAAEIL 306
Cdd:cd18273    93 CYTGRVTLSEANVQRLYAAANMLQLEYVREACASFLARRLDLSNCVGIL 141

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in Kelch-like protein 18 (KLHL18); KLHL18 acts as a substrate-specific adaptor for a Cullin3 E3 ubiquitin-protein ligase complex that regulates mitotic entry and ubiquitylates Aurora-A. It contains a BTB domain and kelch repeats, characteristics of a kelch family protein. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 201 DCCLCVAGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCFIYTGKAPNLDKMADDLLAAADKY 280
Cdd:cd18247    21 DVTLKVGDQKFSAHRIVLAATIPYFHAMFTHDMVESKQDEITMQGIEPSALEALINFAYSGRIAIDTSNVQSLLVGASFL 100

                          90
                  ....*....|...
gi 1666305161 281 ALERLKVMCEDAL 293
Cdd:cd18247   101 QLQSVKDACCEFL 113

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in gigaxonin; Gigaxonin, also called Kelch-like protein 16 (KLHL16), may be a cytoskeletal component that directly or indirectly plays an important role in neurofilament architecture. It may also act as a substrate-specific adaptor of an E3 ubiquitin-protein ligase complex which mediates the ubiquitination and subsequent proteasomal degradation of target proteins, including tubulin folding cofactor B (TBCB), microtubule-associated protein MAP1B, and glial fibrillary acidic protein (GFAP). Gigaxonin is mutated in giant axonal neuropathy. It contains a BTB domain and kelch repeats, characteristics of a kelch family protein. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 190 LGGLWENSRFTDCCLCVAGQEFQAHKAILAARSPVFSAMFEHE--MEESKKNRVEINDVEPEVFKEMMCFIYTGKAPNLD 267
Cdd:cd18245     5 LNSFREEPHLCDATLVVGGEEIPVQKNVLAAASPYFRAKLNYNppKDDGSTYKIELEGISVEVMEEILDYIYTGQIKLSE 84

                          90       100
                  ....*....|....*....|..
gi 1666305161 268 KMADDLLAAADKYALERLKVMC 289
Cdd:cd18245    85 DNIQDIVQAADLLLMTDLKDLC 106

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in Kelch-like proteins, KLHL2 and KLHL3; The family includes Kelch-like proteins, KLHL2 and KLHL3. KLHL2 is a novel actin-binding protein predominantly expressed in brain. It plays a role in the reorganization of the actin cytoskeleton, and promotes growth of cell projections in oligodendrocyte precursors. KLHL2 and KLHL3 each functions as a component of an E3 ubiquitin ligase complex that mediates the ubiquitination of target proteins. They contain a BTB domain and kelch repeat domains, characteristics of a kelch family protein. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 201 DCCLCVAGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCFIYTGKAPNLDKMADDLLAAADKY 280
Cdd:cd18235    23 DVILVADGVEIPAHRVVLASCSPYFHAMFTGDLSESRANRVTLQDVDGKALLLLIDYVYTAEIQVTEENVQVLLPAANLL 102

                          90
                  ....*....|....*..
gi 1666305161 281 ALERLKVMCEDALCSNL 297
Cdd:cd18235   103 QLTDVRDACCDFLQSQL 119

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in rabankyrin-5 (Rank-5); Rank-5, also called ankyrin repeat and FYVE domain-containing protein 1 (ANKFY1) or ankyrin repeats hooked to a zinc finger motif (ANKHZN), is a Rab5 effector that regulates and coordinates different endocytic mechanisms. It contains an N-terminal BTB domain, followed by a BACK domain, several ankyrin (ANK) repeats and a C-terminal FYVE domain. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 185 RLADELGGLWENSRFTDCCLCVAGQEFQAHKAILAARSPVFSAMfehemEESKKNRVEINDVEPEVFKEMMCFIYTGKA- 263
Cdd:cd18303     4 RLLKTVASLFDKELYSDITIKLADKSIPAHKFVLAARSEKWSNE-----NLASTNELDLSDISYEVVLALLRWLYTDELd 78

                          90       100       110
                  ....*....|....*....|....*....|....*....
gi 1666305161 264 PNLD-KMADDLLAAADKYALERLKVMCEDALCSNLSVEN 301
Cdd:cd18303    79 LTLDdEFLLELMKAAKRFQLTDLVERCERALMSSVNVDN 117

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in Kelch-like protein 3 (KLHL3); KLHL3 is a component of an E3 ubiquitin ligase complex that regulates blood pressure by targeting With-No-Lysine (WNK) kinases for degradation. It contains a BTB domain and kelch repeat domains, characteristics of a kelch family protein. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 210 EFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCFIYTGKAPNLDKMADDLLAAADKYALERLKVMC 289
Cdd:cd18339    32 EIEAHRVVLAACSPYFCAMFTGDMSESKAKKIEIKDVDGQTLSKLIDYIYTAEIEVTEENVQVLLPAASLLQLMDVRQNC 111

                  ....*...
gi 1666305161 290 EDALCSNL 297
Cdd:cd18339   112 CDFLQSQL 119

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in Kelch-like protein 25 (KLHL25); KLHL25, also called ectoderm-neural cortex protein 2 (ENC-2), is a substrate-specific adaptor of a BCR (BTB-CUL3-RBX1) E3 ubiquitin ligase complex that is required for translational homeostasis. The BCR(KLHL25) ubiquitin ligase complex acts by mediating ubiquitination of hypophosphorylated EIF4EBP1 (4E-BP1). Cullin3-KLHL25 ubiquitin ligase also targets ATP-citrate lyase (ACLY), a key enzyme for lipid synthesis, for degradation to inhibit lipid synthesis and tumor progression. KLHL25 contains a BTB domain and kelch repeats, characteristics of a kelch family protein. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 182 PECRLAdELGGLWENSRFTDCCLCVAGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEIND-VEPEVFKEMMCFIYT 260
Cdd:cd18254     6 PDCVLT-HLNTLRKQCMFTDVTLWAGNRSFPCHRAVLAACSRYFEAMFSNGLRESLDSTVNFHDsLHPEVLELLLDFAYS 84

                          90       100       110       120
                  ....*....|....*....|....*....|....*....|.
gi 1666305161 261 GKAPNLDKMADDLLAAADKYALERLKVMCEDALCSNLSVEN 301
Cdd:cd18254    85 SRIIINEENAESLLEAGDMLQFHDVRDAAAEFLEKNLYPSN 125

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in Kelch-like ECH-associated protein 1 (KEAP1); KEAP1, also called cytosolic inhibitor of Nrf2 (INrf2) or Kelch-like protein 19 (KLHL19), is a redox-regulated substrate adaptor protein for a Cullin3-dependent ubiquitin ligase complex that targets NFE2L2/NRF2 for ubiquitination and degradation by the proteasome, thus resulting in the suppression of its transcriptional activity and the repression of antioxidant response element-mediated detoxifying enzyme gene expression. It contains a BTB domain and kelch repeats, characteristics of a kelch family protein. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1666305161 210 EFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCFIYTGKAPNLDKMADDLLAAADKYALERLKVMC 289
Cdd:cd18248    36 EFMAHKVVLASSSPYFKAMFTSGLRECGMEVVPIEGVHPCVMSRLIEFAYTASISVGEKCVLHVLPGAVMYQMDSVVKAC 115

                  ....*...
gi 1666305161 290 EDALCSNL 297
Cdd:cd18248   116 CDFLEQQL 123

BTB (Broad-Complex, Tramtrack and Bric a brac)/POZ (poxvirus and zinc finger) domain found in Kelch-like proteins KLHL1, KLHL4 and KLHL5; This family contains the Kelch-like proteins: KLHL1, KLHL4 and KLHL5, all of which share high identity and similarity with the Drosophila kelch protein, a component of ring canals. KLHL1 is a neuronal actin-binding protein that modulates voltage-gated CaV2.1 (P/Q-type) and CaV3.2 (alpha1H T-type) calcium channels. Family members contain a BTB domain and kelch repeat domains, characteristics of a kelch family protein. The BTB/POZ domain is a common protein-protein interaction motif of about 100 amino acids.

                          10        20        30        40        50        60        70
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 1666305161 200 TDCCLCVAGQEFQAHKAILAARSPVFSAMFEHEMEESKKNRVEINDVEPEVFKEMMCFIYTGKAPNLDKMADDLLAAA 277
Cdd:cd18234     2 CDVILIAGDRRIPAHRLVLSAVSDYFAAMFTNDVREATEEEIKLKDVDPDALWTLVQYCYTGRLELKEDNVESLLATA 79