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1M2M

Crystal structure of E44A/E48A/E56A/D60A mutant of cytochrome b5

Functional Information from GO Data
ChainGOidnamespacecontents
A0020037molecular_functionheme binding
Functional Information from PDB Data
site_idAC1
Number of Residues17
DetailsBINDING SITE FOR RESIDUE HEM A 201
ChainResidue
ALEU25
AASN57
APHE58
AHIS63
ASER64
AALA67
ASER71
AHOH334
AHOH339
ATYR27
APHE35
AHIS39
APRO40
AGLY41
ALEU46
AARG47
AGLN49

Functional Information from PROSITE/UniProt
site_idPS00191
Number of Residues8
DetailsCYTOCHROME_B5_1 Cytochrome b5 family, heme-binding domain signature. FLEEHPGG
ChainResidueDetails
APHE35-GLY42

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues76
DetailsDomain: {"description":"Cytochrome b5 heme-binding","evidences":[{"source":"PROSITE-ProRule","id":"PRU00279","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues2
DetailsBinding site: {"description":"axial binding residue","evidences":[{"source":"PROSITE-ProRule","id":"PRU00279","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"15299727","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues2
DetailsModified residue: {"description":"N6-acetyllysine","evidences":[{"source":"UniProtKB","id":"P56395","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

243083

PDB entries from 2025-10-15

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