NCBI Home Page NCBI Site Search page NCBI Guide that lists and describes the NCBI resources
Conserved domains on  [gi|1720398452|ref|XP_030105770|]
View 

protein PRRC2B isoform X8 [Mus musculus]

Protein Classification

Graphical summary

 Zoom to residue level

show extra options »

Show site features     Horizontal zoom: ×

List of domain hits

Name Accession Description Interval E-value
BAT2_N pfam07001
BAT2 N-terminus; This family represents the N-terminus (approximately 200 residues) of the ...
2-190 1.65e-60

BAT2 N-terminus; This family represents the N-terminus (approximately 200 residues) of the proline-rich protein BAT2. BAT2 is similar to other proteins with large proline-rich domains, such as some nuclear proteins, collagens, elastin, and synapsin.


:

Pssm-ID: 462063 [Multi-domain]  Cd Length: 190  Bit Score: 205.87  E-value: 1.65e-60
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452    2 SDRLGQITQGKDGKSKYSTLSLFDKYKGRSVGA-VRSSVIPR-HGLQSLGKVATARRmpPPANLPSLKSENKGNDPNIVI 79
Cdd:pfam07001    1 SSTLGQSRKEKDGKPKYTALDINRTYKGESLEPsKQKNVVPRkHGMQSLGKVPSARR--PPANLPSLKAENKGNDPNVSL 78
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452   80 VPKDGTGWANKQDQQDPKSSSVTASQPPESQPQPGLQKSVSNLQKPTQSISQENTNSVPGGPKSWAQLSGKPVGHEGGLR 159
Cdd:pfam07001   79 VPKDGSGWASKQETPSPKSSQALAAVQPEAQQPPGSGTSGSNTSPGNPTAHEGPAGTSAAGGKSWAQASTTAGSQGGGGK 158
                          170       180       190
                   ....*....|....*....|....*....|.
gi 1720398452  160 GSSRLLSFSPEEFPTLKAAGGQDKAGKEKGA 190
Cdd:pfam07001  159 GSNQLSPFSQEEFPTLQAAGDQDKSGKENNT 189
Atrophin-1 super family cl38111
Atrophin-1 family; Atrophin-1 is the protein product of the dentatorubral-pallidoluysian ...
1156-1465 1.30e-04

Atrophin-1 family; Atrophin-1 is the protein product of the dentatorubral-pallidoluysian atrophy (DRPLA) gene. DRPLA OMIM:125370 is a progressive neurodegenerative disorder. It is caused by the expansion of a CAG repeat in the DRPLA gene on chromosome 12p. This results in an extended polyglutamine region in atrophin-1, that is thought to confer toxicity to the protein, possibly through altering its interactions with other proteins. The expansion of a CAG repeat is also the underlying defect in six other neurodegenerative disorders, including Huntington's disease. One interaction of expanded polyglutamine repeats that is thought to be pathogenic is that with the short glutamine repeat in the transcriptional coactivator CREB binding protein, CBP. This interaction draws CBP away from its usual nuclear location to the expanded polyglutamine repeat protein aggregates that are characteriztic of the polyglutamine neurodegenerative disorders. This interferes with CBP-mediated transcription and causes cytotoxicity.


The actual alignment was detected with superfamily member pfam03154:

Pssm-ID: 460830 [Multi-domain]  Cd Length: 991  Bit Score: 46.68  E-value: 1.30e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452 1156 PEQSSPGGAGSGIQPPSSVGASNGVNYSSFGGVSMPPMPVASVAPSASIPGSHLPPLYLdghvFASQPRLVPQTIPQQQS 1235
Cdd:pfam03154  172 PVLQAQSGAASPPSPPPPGTTQAATAGPTPSAPSVPPQGSPATSQPPNQTQSTAAPHTL----IQQTPTLHPQRLPSPHP 247
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452 1236 YQQAATaqQIPISLHTSLQAQAQLGLRG-GLPVSQSQEIFSSL-------QPFRSQVYMHPSLSPPSTMILSGGTA---- 1303
Cdd:pfam03154  248 PLQPMT--QPPPPSQVSPQPLPQPSLHGqMPPMPHSLQTGPSHmqhpvppQPFPLTPQSSQSQVPPGPSPAAPGQSqqri 325
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452 1304 -LKPPYSAFPGIQP------------LEMVKPQSGSPYQPMSGNQALVYEGQLGQAAGLGTSQMLDSqlPQLTMPLPRYG 1370
Cdd:pfam03154  326 hTPPSQSQLQSQQPpreqplppaplsMPHIKPPPTTPIPQLPNPQSHKHPPHLSGPSPFQMNSNLPP--PPALKPLSSLS 403
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452 1371 SGQQPLILPQSIQLPPgqslsvgAPRRVPPPGSQPPVLNTSRESAPM-----ELKGFHFADSKQNVPTGGSAPSPQayrP 1445
Cdd:pfam03154  404 THHPPSAHPPPLQLMP-------QSQQLPPPPAQPPVLTQSQSLPPPaashpPTSGLHQVPSQSPFPQHPFVPGGP---P 473
                          330       340
                   ....*....|....*....|
gi 1720398452 1446 SSASPSGKPSGSAVNMGSVQ 1465
Cdd:pfam03154  474 PITPPSGPPTSTSSAMPGIQ 493
 
Name Accession Description Interval E-value
BAT2_N pfam07001
BAT2 N-terminus; This family represents the N-terminus (approximately 200 residues) of the ...
2-190 1.65e-60

BAT2 N-terminus; This family represents the N-terminus (approximately 200 residues) of the proline-rich protein BAT2. BAT2 is similar to other proteins with large proline-rich domains, such as some nuclear proteins, collagens, elastin, and synapsin.


Pssm-ID: 462063 [Multi-domain]  Cd Length: 190  Bit Score: 205.87  E-value: 1.65e-60
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452    2 SDRLGQITQGKDGKSKYSTLSLFDKYKGRSVGA-VRSSVIPR-HGLQSLGKVATARRmpPPANLPSLKSENKGNDPNIVI 79
Cdd:pfam07001    1 SSTLGQSRKEKDGKPKYTALDINRTYKGESLEPsKQKNVVPRkHGMQSLGKVPSARR--PPANLPSLKAENKGNDPNVSL 78
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452   80 VPKDGTGWANKQDQQDPKSSSVTASQPPESQPQPGLQKSVSNLQKPTQSISQENTNSVPGGPKSWAQLSGKPVGHEGGLR 159
Cdd:pfam07001   79 VPKDGSGWASKQETPSPKSSQALAAVQPEAQQPPGSGTSGSNTSPGNPTAHEGPAGTSAAGGKSWAQASTTAGSQGGGGK 158
                          170       180       190
                   ....*....|....*....|....*....|.
gi 1720398452  160 GSSRLLSFSPEEFPTLKAAGGQDKAGKEKGA 190
Cdd:pfam07001  159 GSNQLSPFSQEEFPTLQAAGDQDKSGKENNT 189
Atrophin-1 pfam03154
Atrophin-1 family; Atrophin-1 is the protein product of the dentatorubral-pallidoluysian ...
1156-1465 1.30e-04

Atrophin-1 family; Atrophin-1 is the protein product of the dentatorubral-pallidoluysian atrophy (DRPLA) gene. DRPLA OMIM:125370 is a progressive neurodegenerative disorder. It is caused by the expansion of a CAG repeat in the DRPLA gene on chromosome 12p. This results in an extended polyglutamine region in atrophin-1, that is thought to confer toxicity to the protein, possibly through altering its interactions with other proteins. The expansion of a CAG repeat is also the underlying defect in six other neurodegenerative disorders, including Huntington's disease. One interaction of expanded polyglutamine repeats that is thought to be pathogenic is that with the short glutamine repeat in the transcriptional coactivator CREB binding protein, CBP. This interaction draws CBP away from its usual nuclear location to the expanded polyglutamine repeat protein aggregates that are characteriztic of the polyglutamine neurodegenerative disorders. This interferes with CBP-mediated transcription and causes cytotoxicity.


Pssm-ID: 460830 [Multi-domain]  Cd Length: 991  Bit Score: 46.68  E-value: 1.30e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452 1156 PEQSSPGGAGSGIQPPSSVGASNGVNYSSFGGVSMPPMPVASVAPSASIPGSHLPPLYLdghvFASQPRLVPQTIPQQQS 1235
Cdd:pfam03154  172 PVLQAQSGAASPPSPPPPGTTQAATAGPTPSAPSVPPQGSPATSQPPNQTQSTAAPHTL----IQQTPTLHPQRLPSPHP 247
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452 1236 YQQAATaqQIPISLHTSLQAQAQLGLRG-GLPVSQSQEIFSSL-------QPFRSQVYMHPSLSPPSTMILSGGTA---- 1303
Cdd:pfam03154  248 PLQPMT--QPPPPSQVSPQPLPQPSLHGqMPPMPHSLQTGPSHmqhpvppQPFPLTPQSSQSQVPPGPSPAAPGQSqqri 325
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452 1304 -LKPPYSAFPGIQP------------LEMVKPQSGSPYQPMSGNQALVYEGQLGQAAGLGTSQMLDSqlPQLTMPLPRYG 1370
Cdd:pfam03154  326 hTPPSQSQLQSQQPpreqplppaplsMPHIKPPPTTPIPQLPNPQSHKHPPHLSGPSPFQMNSNLPP--PPALKPLSSLS 403
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452 1371 SGQQPLILPQSIQLPPgqslsvgAPRRVPPPGSQPPVLNTSRESAPM-----ELKGFHFADSKQNVPTGGSAPSPQayrP 1445
Cdd:pfam03154  404 THHPPSAHPPPLQLMP-------QSQQLPPPPAQPPVLTQSQSLPPPaashpPTSGLHQVPSQSPFPQHPFVPGGP---P 473
                          330       340
                   ....*....|....*....|
gi 1720398452 1446 SSASPSGKPSGSAVNMGSVQ 1465
Cdd:pfam03154  474 PITPPSGPPTSTSSAMPGIQ 493
PHA03247 PHA03247
large tegument protein UL36; Provisional
1024-1459 7.40e-04

large tegument protein UL36; Provisional


Pssm-ID: 223021 [Multi-domain]  Cd Length: 3151  Bit Score: 44.54  E-value: 7.40e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452 1024 RPGPIGNERSLKNRkgsegaERLPGAVVPPVNGVEIHVDSVLPVPPIEFGVSPKDSDFSLPPGSVSGPVGNPVAKLQDVL 1103
Cdd:PHA03247  2572 RPAPRPSEPAVTSR------ARRPDAPPQSARPRAPVDDRGDPRGPAPPSPLPPDTHAPDPPPPSPSPAANEPDPHPPPT 2645
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452 1104 ASNAGLTQSIPILRRDHHMQRAIGLSPMSFPTAdlTLKMESARKAWENSPSLPEQSSPGGAGSGIQPPSSVGASngvnys 1183
Cdd:PHA03247  2646 VPPPERPRDDPAPGRVSRPRRARRLGRAAQASS--PPQRPRRRAARPTVGSLTSLADPPPPPPTPEPAPHALVS------ 2717
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452 1184 sfgGVSMPPMPVASVAPSASIPGSHLPPLYLDGHVFASQPRLVPQtiPQQQSYQQAATAQQIPISlhtslQAQAQLGLRG 1263
Cdd:PHA03247  2718 ---ATPLPPGPAAARQASPALPAAPAPPAVPAGPATPGGPARPAR--PPTTAGPPAPAPPAAPAA-----GPPRRLTRPA 2787
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452 1264 GLPVSQSQEIFSSLQPFRSQVYMHPSLSPPSTMILSGGTALKPPYSAFPGIQPLemvKPQSGSPYQPMSGNQA----LVY 1339
Cdd:PHA03247  2788 VASLSESRESLPSPWDPADPPAAVLAPAAALPPAASPAGPLPPPTSAQPTAPPP---PPGPPPPSLPLGGSVApggdVRR 2864
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452 1340 EGQLGQAAGLGT-------SQMLDSQLPQLTMPLPRYGSGQQPLILPQSIQLPPGQSLSVGAPRRVPPPG----SQPPVL 1408
Cdd:PHA03247  2865 RPPSRSPAAKPAaparppvRRLARPAVSRSTESFALPPDQPERPPQPQAPPPPQPQPQPPPPPQPQPPPPppprPQPPLA 2944
                          410       420       430       440       450
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1720398452 1409 NTSRESAPMELKGF-------HFADSKQNVPTgGSAPSPQAYRPSSASPSGKPSGSAV 1459
Cdd:PHA03247  2945 PTTDPAGAGEPSGAvpqpwlgALVPGRVAVPR-FRVPQPAPSREAPASSTPPLTGHSL 3001
 
Name Accession Description Interval E-value
BAT2_N pfam07001
BAT2 N-terminus; This family represents the N-terminus (approximately 200 residues) of the ...
2-190 1.65e-60

BAT2 N-terminus; This family represents the N-terminus (approximately 200 residues) of the proline-rich protein BAT2. BAT2 is similar to other proteins with large proline-rich domains, such as some nuclear proteins, collagens, elastin, and synapsin.


Pssm-ID: 462063 [Multi-domain]  Cd Length: 190  Bit Score: 205.87  E-value: 1.65e-60
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452    2 SDRLGQITQGKDGKSKYSTLSLFDKYKGRSVGA-VRSSVIPR-HGLQSLGKVATARRmpPPANLPSLKSENKGNDPNIVI 79
Cdd:pfam07001    1 SSTLGQSRKEKDGKPKYTALDINRTYKGESLEPsKQKNVVPRkHGMQSLGKVPSARR--PPANLPSLKAENKGNDPNVSL 78
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452   80 VPKDGTGWANKQDQQDPKSSSVTASQPPESQPQPGLQKSVSNLQKPTQSISQENTNSVPGGPKSWAQLSGKPVGHEGGLR 159
Cdd:pfam07001   79 VPKDGSGWASKQETPSPKSSQALAAVQPEAQQPPGSGTSGSNTSPGNPTAHEGPAGTSAAGGKSWAQASTTAGSQGGGGK 158
                          170       180       190
                   ....*....|....*....|....*....|.
gi 1720398452  160 GSSRLLSFSPEEFPTLKAAGGQDKAGKEKGA 190
Cdd:pfam07001  159 GSNQLSPFSQEEFPTLQAAGDQDKSGKENNT 189
Atrophin-1 pfam03154
Atrophin-1 family; Atrophin-1 is the protein product of the dentatorubral-pallidoluysian ...
1156-1465 1.30e-04

Atrophin-1 family; Atrophin-1 is the protein product of the dentatorubral-pallidoluysian atrophy (DRPLA) gene. DRPLA OMIM:125370 is a progressive neurodegenerative disorder. It is caused by the expansion of a CAG repeat in the DRPLA gene on chromosome 12p. This results in an extended polyglutamine region in atrophin-1, that is thought to confer toxicity to the protein, possibly through altering its interactions with other proteins. The expansion of a CAG repeat is also the underlying defect in six other neurodegenerative disorders, including Huntington's disease. One interaction of expanded polyglutamine repeats that is thought to be pathogenic is that with the short glutamine repeat in the transcriptional coactivator CREB binding protein, CBP. This interaction draws CBP away from its usual nuclear location to the expanded polyglutamine repeat protein aggregates that are characteriztic of the polyglutamine neurodegenerative disorders. This interferes with CBP-mediated transcription and causes cytotoxicity.


Pssm-ID: 460830 [Multi-domain]  Cd Length: 991  Bit Score: 46.68  E-value: 1.30e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452 1156 PEQSSPGGAGSGIQPPSSVGASNGVNYSSFGGVSMPPMPVASVAPSASIPGSHLPPLYLdghvFASQPRLVPQTIPQQQS 1235
Cdd:pfam03154  172 PVLQAQSGAASPPSPPPPGTTQAATAGPTPSAPSVPPQGSPATSQPPNQTQSTAAPHTL----IQQTPTLHPQRLPSPHP 247
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452 1236 YQQAATaqQIPISLHTSLQAQAQLGLRG-GLPVSQSQEIFSSL-------QPFRSQVYMHPSLSPPSTMILSGGTA---- 1303
Cdd:pfam03154  248 PLQPMT--QPPPPSQVSPQPLPQPSLHGqMPPMPHSLQTGPSHmqhpvppQPFPLTPQSSQSQVPPGPSPAAPGQSqqri 325
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452 1304 -LKPPYSAFPGIQP------------LEMVKPQSGSPYQPMSGNQALVYEGQLGQAAGLGTSQMLDSqlPQLTMPLPRYG 1370
Cdd:pfam03154  326 hTPPSQSQLQSQQPpreqplppaplsMPHIKPPPTTPIPQLPNPQSHKHPPHLSGPSPFQMNSNLPP--PPALKPLSSLS 403
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452 1371 SGQQPLILPQSIQLPPgqslsvgAPRRVPPPGSQPPVLNTSRESAPM-----ELKGFHFADSKQNVPTGGSAPSPQayrP 1445
Cdd:pfam03154  404 THHPPSAHPPPLQLMP-------QSQQLPPPPAQPPVLTQSQSLPPPaashpPTSGLHQVPSQSPFPQHPFVPGGP---P 473
                          330       340
                   ....*....|....*....|
gi 1720398452 1446 SSASPSGKPSGSAVNMGSVQ 1465
Cdd:pfam03154  474 PITPPSGPPTSTSSAMPGIQ 493
PHA03247 PHA03247
large tegument protein UL36; Provisional
1024-1459 7.40e-04

large tegument protein UL36; Provisional


Pssm-ID: 223021 [Multi-domain]  Cd Length: 3151  Bit Score: 44.54  E-value: 7.40e-04
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452 1024 RPGPIGNERSLKNRkgsegaERLPGAVVPPVNGVEIHVDSVLPVPPIEFGVSPKDSDFSLPPGSVSGPVGNPVAKLQDVL 1103
Cdd:PHA03247  2572 RPAPRPSEPAVTSR------ARRPDAPPQSARPRAPVDDRGDPRGPAPPSPLPPDTHAPDPPPPSPSPAANEPDPHPPPT 2645
                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452 1104 ASNAGLTQSIPILRRDHHMQRAIGLSPMSFPTAdlTLKMESARKAWENSPSLPEQSSPGGAGSGIQPPSSVGASngvnys 1183
Cdd:PHA03247  2646 VPPPERPRDDPAPGRVSRPRRARRLGRAAQASS--PPQRPRRRAARPTVGSLTSLADPPPPPPTPEPAPHALVS------ 2717
                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452 1184 sfgGVSMPPMPVASVAPSASIPGSHLPPLYLDGHVFASQPRLVPQtiPQQQSYQQAATAQQIPISlhtslQAQAQLGLRG 1263
Cdd:PHA03247  2718 ---ATPLPPGPAAARQASPALPAAPAPPAVPAGPATPGGPARPAR--PPTTAGPPAPAPPAAPAA-----GPPRRLTRPA 2787
                          250       260       270       280       290       300       310       320
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452 1264 GLPVSQSQEIFSSLQPFRSQVYMHPSLSPPSTMILSGGTALKPPYSAFPGIQPLemvKPQSGSPYQPMSGNQA----LVY 1339
Cdd:PHA03247  2788 VASLSESRESLPSPWDPADPPAAVLAPAAALPPAASPAGPLPPPTSAQPTAPPP---PPGPPPPSLPLGGSVApggdVRR 2864
                          330       340       350       360       370       380       390       400
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1720398452 1340 EGQLGQAAGLGT-------SQMLDSQLPQLTMPLPRYGSGQQPLILPQSIQLPPGQSLSVGAPRRVPPPG----SQPPVL 1408
Cdd:PHA03247  2865 RPPSRSPAAKPAaparppvRRLARPAVSRSTESFALPPDQPERPPQPQAPPPPQPQPQPPPPPQPQPPPPppprPQPPLA 2944
                          410       420       430       440       450
                   ....*....|....*....|....*....|....*....|....*....|....*...
gi 1720398452 1409 NTSRESAPMELKGF-------HFADSKQNVPTgGSAPSPQAYRPSSASPSGKPSGSAV 1459
Cdd:PHA03247  2945 PTTDPAGAGEPSGAvpqpwlgALVPGRVAVPR-FRVPQPAPSREAPASSTPPLTGHSL 3001
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options: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.
Help | Disclaimer | Write to the Help Desk
NCBI | NLM | NIH