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9ISI

Structure of human C3aR in apo state

Functional Information from GO Data
ChainGOidnamespacecontents
B0004875molecular_functioncomplement receptor activity
B0004876molecular_functioncomplement component C3a receptor activity
B0004930molecular_functionG protein-coupled receptor activity
B0005506molecular_functioniron ion binding
B0006935biological_processchemotaxis
B0007186biological_processG protein-coupled receptor signaling pathway
B0009055molecular_functionelectron transfer activity
B0016020cellular_componentmembrane
B0020037molecular_functionheme binding
B0022900biological_processelectron transport chain
B0042597cellular_componentperiplasmic space
B0046872molecular_functionmetal ion binding
Functional Information from PROSITE/UniProt
site_idPS00237
Number of Residues17
DetailsG_PROTEIN_RECEP_F1_1 G-protein coupled receptors family 1 signature. ASVfLLTAISLDRCLvV
ChainResidueDetails
BALA108-VAL124

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues2
DetailsBinding site: {"description":"axial binding residue"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues33
DetailsTopological domain: {"description":"Cytoplasmic","evidences":[{"source":"PubMed","id":"37852260","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"8HK2","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8HK3","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I95","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I97","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I9L","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I9S","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8J6D","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues24
DetailsTransmembrane: {"description":"Helical; Name=2","evidences":[{"source":"PubMed","id":"37852260","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"8HK2","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8HK3","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I95","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I97","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I9L","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I9S","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8J6D","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues26
DetailsTransmembrane: {"description":"Helical; Name=3","evidences":[{"source":"PubMed","id":"37852260","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"8HK2","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8HK3","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I95","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I97","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I9L","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I9S","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8J6D","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues19
DetailsTransmembrane: {"description":"Helical; Name=4","evidences":[{"source":"PubMed","id":"37852260","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"8HK2","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8HK3","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I95","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I97","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I9L","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I9S","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8J6D","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues21
DetailsTransmembrane: {"description":"Helical; Name=5","evidences":[{"source":"PubMed","id":"37852260","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"8HK2","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8HK3","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I95","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I97","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I9L","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I9S","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8J6D","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues25
DetailsTransmembrane: {"description":"Helical; Name=6","evidences":[{"source":"PubMed","id":"37852260","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"8HK2","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8HK3","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I95","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I97","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I9L","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I9S","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8J6D","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI8
Number of Residues7
DetailsTopological domain: {"description":"Extracellular","evidences":[{"source":"PubMed","id":"37852260","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"8HK2","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8HK3","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I95","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I97","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I9L","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I9S","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8J6D","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI9
Number of Residues23
DetailsTransmembrane: {"description":"Helical; Name=7","evidences":[{"source":"PubMed","id":"37852260","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"8HK2","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8HK3","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I95","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I97","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I9L","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8I9S","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"8J6D","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI10
Number of Residues1
DetailsModified residue: {"description":"Phosphoserine","evidences":[{"source":"PubMed","id":"38175886","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"8JA3","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

250059

PDB entries from 2026-03-04

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