P-loop NTPase (nucleoside triphosphate hydrolase) family protein contains two conserved sequence signatures, the Walker A motif (the P-loop proper) and Walker B motif which bind, respectively, the beta and gamma phosphate moieties of the bound nucleotide (typically ATP or GTP), and a Mg(2+) cation
P-loop containing Nucleoside Triphosphate Hydrolases; Members of the P-loop NTPase domain ...
22-434
1.40e-82
P-loop containing Nucleoside Triphosphate Hydrolases; Members of the P-loop NTPase domain superfamily are characterized by a conserved nucleotide phosphate-binding motif, also referred to as the Walker A motif (GxxxxGK[S/T], where x is any residue), and the Walker B motif (hhhh[D/E], where h is a hydrophobic residue). The Walker A and B motifs bind the beta-gamma phosphate moiety of the bound nucleotide (typically ATP or GTP) and the Mg2+ cation, respectively. The P-loop NTPases are involved in diverse cellular functions, and they can be divided into two major structural classes: the KG (kinase-GTPase) class which includes Ras-like GTPases and its circularly permutated YlqF-like; and the ASCE (additional strand catalytic E) class which includes ATPase Binding Cassette (ABC), DExD/H-like helicases, 4Fe-4S iron sulfur cluster binding proteins of NifH family, RecA-like F1-ATPases, and ATPases Associated with a wide variety of Activities (AAA). Also included are a diverse set of nucleotide/nucleoside kinase families.
The actual alignment was detected with superfamily member smart00488:
Pssm-ID: 476819 [Multi-domain] Cd Length: 289 Bit Score: 261.54 E-value: 1.40e-82
DEAD_2; This represents a conserved region within a number of RAD3-like DNA-binding helicases ...
229-412
3.27e-66
DEAD_2; This represents a conserved region within a number of RAD3-like DNA-binding helicases that are seemingly ubiquitous - members include proteins of eukaryotic, bacterial and archaeal origin. RAD3 is involved in nucleotide excision repair, and forms part of the transcription factor TFIIH in yeast.
Pssm-ID: 399602 [Multi-domain] Cd Length: 168 Bit Score: 214.44 E-value: 3.27e-66
DNA repair helicase (rad3); All proteins in this family for which funcitons are known are ...
225-637
5.94e-64
DNA repair helicase (rad3); All proteins in this family for which funcitons are known are DNA-DNA helicases that funciton in the initiation of transcription and nucleotide excision repair as part of the TFIIH complex. This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]
Pssm-ID: 273169 [Multi-domain] Cd Length: 705 Bit Score: 223.83 E-value: 5.94e-64
DEAH-box helicase domain of ATP-dependent DNA helicase DDX11; DDX11 (also called ChlR1) ...
224-396
1.85e-30
DEAH-box helicase domain of ATP-dependent DNA helicase DDX11; DDX11 (also called ChlR1) encodes a protein of the conserved family of Iron-Sulfur (Fe-S) cluster DNA helicases and is thought to function in maintaining chromosome transmission fidelity and genome stability. Mutations in the Chl1 human homologs ChlR1/DDX11 and BACH1/BRIP1/FANCJ collectively result in Warsaw Breakage Syndrome, Fanconi anemia, cell aneuploidy and breast and ovarian cancers. DDX11 is a member of the DEAD-box helicases, a diverse family of proteins involved in ATP-dependent RNA unwinding, needed in a variety of cellular processes including splicing, ribosome biogenesis and RNA degradation. The name derives from the sequence of the Walker B motif (motif II). This domain contains the ATP-binding region.
Pssm-ID: 350726 Cd Length: 134 Bit Score: 116.27 E-value: 1.85e-30
DEAD_2; This represents a conserved region within a number of RAD3-like DNA-binding helicases ...
229-412
3.27e-66
DEAD_2; This represents a conserved region within a number of RAD3-like DNA-binding helicases that are seemingly ubiquitous - members include proteins of eukaryotic, bacterial and archaeal origin. RAD3 is involved in nucleotide excision repair, and forms part of the transcription factor TFIIH in yeast.
Pssm-ID: 399602 [Multi-domain] Cd Length: 168 Bit Score: 214.44 E-value: 3.27e-66
DNA repair helicase (rad3); All proteins in this family for which funcitons are known are ...
225-637
5.94e-64
DNA repair helicase (rad3); All proteins in this family for which funcitons are known are DNA-DNA helicases that funciton in the initiation of transcription and nucleotide excision repair as part of the TFIIH complex. This family is based on the phylogenomic analysis of JA Eisen (1999, Ph.D. Thesis, Stanford University). [DNA metabolism, DNA replication, recombination, and repair]
Pssm-ID: 273169 [Multi-domain] Cd Length: 705 Bit Score: 223.83 E-value: 5.94e-64
DEAH-box helicase domain of ATP-dependent DNA helicase DDX11; DDX11 (also called ChlR1) ...
224-396
1.85e-30
DEAH-box helicase domain of ATP-dependent DNA helicase DDX11; DDX11 (also called ChlR1) encodes a protein of the conserved family of Iron-Sulfur (Fe-S) cluster DNA helicases and is thought to function in maintaining chromosome transmission fidelity and genome stability. Mutations in the Chl1 human homologs ChlR1/DDX11 and BACH1/BRIP1/FANCJ collectively result in Warsaw Breakage Syndrome, Fanconi anemia, cell aneuploidy and breast and ovarian cancers. DDX11 is a member of the DEAD-box helicases, a diverse family of proteins involved in ATP-dependent RNA unwinding, needed in a variety of cellular processes including splicing, ribosome biogenesis and RNA degradation. The name derives from the sequence of the Walker B motif (motif II). This domain contains the ATP-binding region.
Pssm-ID: 350726 Cd Length: 134 Bit Score: 116.27 E-value: 1.85e-30
DEAH-box helicase domain of XPD family DEAD-like helicases; The xeroderma pigmentosum group D ...
223-396
1.41e-19
DEAH-box helicase domain of XPD family DEAD-like helicases; The xeroderma pigmentosum group D (XPD)-like family members are DEAD-box helicases, a diverse family of proteins involved in ATP-dependent RNA unwinding, needed in a variety of cellular processes including splicing, ribosome biogenesis and RNA degradation. The name derives from the sequence of the Walker B motif (motif II). This domain contains the ATP-binding region.
Pssm-ID: 350673 [Multi-domain] Cd Length: 138 Bit Score: 85.18 E-value: 1.41e-19
DEAH-box helicase domain of Fanconi anemia group J protein and similar proteins; Fanconi ...
197-395
4.66e-19
DEAH-box helicase domain of Fanconi anemia group J protein and similar proteins; Fanconi anemia group J protein (FACJ or FANCJ, also known as BRIP1) is a DNA helicase required for the maintenance of chromosomal stability. It plays a role in the repair of DNA double-strand breaks by homologous recombination dependent on its interaction with BRCA1. FANCJ belongs to the DEAD-box helicase family, a diverse family of proteins involved in ATP-dependent RNA unwinding, needed in a variety of cellular processes including splicing, ribosome biogenesis and RNA degradation. The name derives from the sequence of the Walker B motif (motif II). This domain contains the ATP-binding region.
Pssm-ID: 350728 [Multi-domain] Cd Length: 181 Bit Score: 85.09 E-value: 4.66e-19
Database: CDSEARCH/cdd Low complexity filter: no Composition Based Adjustment: yes E-value threshold: 0.01
References:
Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
of the residues that compose this conserved feature have been mapped to the query sequence.
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