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2QTS

Structure of an acid-sensing ion channel 1 at 1.9 A resolution and low pH

Functional Information from GO Data
ChainGOidnamespacecontents
A0005272molecular_functionsodium channel activity
A0006814biological_processsodium ion transport
A0015280molecular_functionligand-gated sodium channel activity
A0016020cellular_componentmembrane
B0005272molecular_functionsodium channel activity
B0006814biological_processsodium ion transport
B0015280molecular_functionligand-gated sodium channel activity
B0016020cellular_componentmembrane
C0005272molecular_functionsodium channel activity
C0006814biological_processsodium ion transport
C0015280molecular_functionligand-gated sodium channel activity
C0016020cellular_componentmembrane
D0005272molecular_functionsodium channel activity
D0006814biological_processsodium ion transport
D0015280molecular_functionligand-gated sodium channel activity
D0016020cellular_componentmembrane
E0005272molecular_functionsodium channel activity
E0006814biological_processsodium ion transport
E0015280molecular_functionligand-gated sodium channel activity
E0016020cellular_componentmembrane
F0005272molecular_functionsodium channel activity
F0006814biological_processsodium ion transport
F0015280molecular_functionligand-gated sodium channel activity
F0016020cellular_componentmembrane
Functional Information from PROSITE/UniProt
site_idPS01206
Number of Residues21
DetailsASC Amiloride-sensitive sodium channels signature. YsiTaCridCeTryLVenCnC
ChainResidueDetails
ATYR304-CYS324

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues126
DetailsTRANSMEM: Helical => ECO:0000305|PubMed:24507937, ECO:0007744|PDB:4NTW
ChainResidueDetails
ACYS50-LEU71
BCYS50-LEU71
CCYS50-LEU71
DCYS50-LEU71
ECYS50-LEU71
FCYS50-LEU71

site_idSWS_FT_FI2
Number of Residues2112
DetailsTOPO_DOM: Extracellular => ECO:0000305|PubMed:24507937, ECO:0007744|PDB:4NTW
ChainResidueDetails
ATYR72-ALA424
BTYR72-ALA424
CTYR72-ALA424
DTYR72-ALA424
ETYR72-ALA424
FTYR72-ALA424

site_idSWS_FT_FI3
Number of Residues174
DetailsTRANSMEM: Discontinuously helical => ECO:0000305|PubMed:24507937, ECO:0007744|PDB:4NTW
ChainResidueDetails
ATYR425-ASP454
BTYR425-ASP454
CTYR425-ASP454
DTYR425-ASP454
ETYR425-ASP454
FTYR425-ASP454

site_idSWS_FT_FI4
Number of Residues6
DetailsSITE: Involved in channel desensitization; the process by which the channel becomes unresponsive to proton stimulation => ECO:0000269|PubMed:22842900
ChainResidueDetails
AGLU80
BGLU80
CGLU80
DGLU80
EGLU80
FGLU80

site_idSWS_FT_FI5
Number of Residues6
DetailsSITE: Involved in proton-dependent gating => ECO:0000250|UniProtKB:P78348
ChainResidueDetails
AASP356
BASP356
CASP356
DASP356
EASP356
FASP356

site_idSWS_FT_FI6
Number of Residues12
DetailsCARBOHYD: N-linked (GlcNAc...) asparagine => ECO:0000269|PubMed:17882215, ECO:0000269|PubMed:22760635, ECO:0000269|PubMed:22842900, ECO:0007744|PDB:2QTS
ChainResidueDetails
AASN367
EASN394
FASN367
FASN394
AASN394
BASN367
BASN394
CASN367
CASN394
DASN367
DASN394
EASN367

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PDB entries from 2025-06-18

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