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4X8Y

Crystal structure of human PGRMC1 cytochrome b5-like domain

Functional Information from PDB Data
site_idAC1
Number of Residues14
Detailsbinding site for residue HEM A 500
ChainResidue
ALYS105
BGLY67
BSER68
BPRO69
BGLU70
BHOH610
APHE106
ATYR107
ATYR113
AGLY124
ACYS129
ATRP156
ALYS163
ATYR164

site_idAC2
Number of Residues13
Detailsbinding site for residue HEM B 500
ChainResidue
BPHE106
BTYR107
BTYR113
BGLY124
BLEU125
BPHE128
BCYS129
BLEU130
BTRP156
BLYS163
BTYR164
BHOH603
BHOH621

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues198
DetailsDomain: {"description":"Cytochrome b5 heme-binding"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues2
DetailsBinding site: {"description":"axial binding residue","evidences":[{"source":"PubMed","id":"26988023","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"4X8Y","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues2
DetailsModified residue: {"description":"Phosphothreonine","evidences":[{"source":"PubMed","id":"24275569","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

242842

PDB entries from 2025-10-08

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