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4U15

M3-mT4L receptor bound to tiotropium

Functional Information from GO Data
ChainGOidnamespacecontents
A0003796molecular_functionlysozyme activity
A0004930molecular_functionG protein-coupled receptor activity
A0005886cellular_componentplasma membrane
A0007186biological_processG protein-coupled receptor signaling pathway
A0016020cellular_componentmembrane
A0016907molecular_functionG protein-coupled acetylcholine receptor activity
B0003796molecular_functionlysozyme activity
B0004930molecular_functionG protein-coupled receptor activity
B0005886cellular_componentplasma membrane
B0007186biological_processG protein-coupled receptor signaling pathway
B0016020cellular_componentmembrane
B0016907molecular_functionG protein-coupled acetylcholine receptor activity
Functional Information from PDB Data
site_idAC1
Number of Residues15
Detailsbinding site for residue 0HK A 2001
ChainResidue
AASP147
APHE239
ATRP503
ATYR506
AASN507
ATYR529
ACYS532
ATYR148
ASER151
AASN152
ATRP199
ATHR231
ATHR234
AALA235
AALA238

site_idAC2
Number of Residues8
Detailsbinding site for residue P6G A 2002
ChainResidue
AGLY1014
AALA1020
APHE1024
BASP1027
BVAL1060
BPHE1061
BGLY1064
BGLU1065

site_idAC3
Number of Residues9
Detailsbinding site for residue P6G A 2003
ChainResidue
AGLU1011
AVAL1060
APHE1061
AGLN1062
AGLY1064
BARG1008
BGLU1011
BGLY1013
BASP1027

site_idAC4
Number of Residues8
Detailsbinding site for residue P6G A 2004
ChainResidue
ATHR1066
AGLY1067
AGLY1070
APHE1071
ATRP1095
AGLN1098
BLYS99
BARG179

site_idAC5
Number of Residues7
Detailsbinding site for residue TAR A 2005
ChainResidue
ATHR1099
APRO1100
AASN1101
AARG1102
BTHR1099
BPRO1100
BASN1101

site_idAC6
Number of Residues5
Detailsbinding site for residue TAR A 2006
ChainResidue
APHE1071
ATHR1072
AASN1073
ASER1074
AASN1089

site_idAC7
Number of Residues14
Detailsbinding site for residue 0HK B 1201
ChainResidue
BASP147
BTYR148
BSER151
BASN152
BTHR231
BALA235
BALA238
BPHE239
BTRP503
BTYR506
BASN507
BTYR529
BCYS532
BTYR533

site_idAC8
Number of Residues3
Detailsbinding site for residue OLC B 1202
ChainResidue
BTHR244
BTHR247
BTRP251

site_idAC9
Number of Residues3
Detailsbinding site for residue OLC B 1203
ChainResidue
BSER493
BALA494
BILE534

site_idAD1
Number of Residues8
Detailsbinding site for residue P6G B 1204
ChainResidue
BPHE124
BLEU144
BTYR148
BPHE221
BILE222
BLEU225
BTRP525
BTYR529

site_idAD2
Number of Residues5
Detailsbinding site for residue TAR B 1205
ChainResidue
BPHE1071
BTHR1072
BASN1073
BSER1074
BASN1089

site_idAD3
Number of Residues5
Detailsbinding site for residue TAR B 1206
ChainResidue
BTHR100
BVAL101
BASN102
BARG176
BARG179

Functional Information from PROSITE/UniProt
site_idPS00237
Number of Residues17
DetailsG_PROTEIN_RECEP_F1_1 G-protein coupled receptors family 1 signature. ASVmNLLVISFDRYFsI
ChainResidueDetails
AALA153-ILE169

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI2
Number of Residues46
DetailsTransmembrane: {"description":"Helical; Name=1"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues62
DetailsTopological domain: {"description":"Cytoplasmic","evidences":[{"source":"PubMed","id":"22358844","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues50
DetailsTransmembrane: {"description":"Helical; Name=2"}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues88
DetailsTopological domain: {"description":"Extracellular","evidences":[{"source":"PubMed","id":"22358844","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues42
DetailsTransmembrane: {"description":"Helical; Name=3"}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues42
DetailsTransmembrane: {"description":"Helical; Name=4"}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues44
DetailsTransmembrane: {"description":"Helical; Name=5"}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues44
DetailsTransmembrane: {"description":"Helical; Name=6"}
ChainResidueDetails

site_idSWS_FT_FI10
Number of Residues38
DetailsTransmembrane: {"description":"Helical; Name=7"}
ChainResidueDetails

site_idSWS_FT_FI11
Number of Residues2
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"UniProtKB","id":"Q9ERZ3","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

247536

PDB entries from 2026-01-14

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