Loading
PDBj
MenuPDBj@FacebookPDBj@X(formerly Twitter)PDBj@BlueSkyPDBj@YouTubewwPDB FoundationwwPDBDonate
RCSB PDBPDBeBMRBAdv. SearchSearch help

4FNI

Crystal structure of IsdI-W66Y in complex with heme and cyanide

Functional Information from GO Data
ChainGOidnamespacecontents
A0004392molecular_functionheme oxygenase (decyclizing) activity
A0004497molecular_functionmonooxygenase activity
A0005506molecular_functioniron ion binding
A0005737cellular_componentcytoplasm
A0016491molecular_functionoxidoreductase activity
A0016705molecular_functionoxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
A0020037molecular_functionheme binding
A0033212biological_processiron import into cell
A0042167biological_processheme catabolic process
A0046872molecular_functionmetal ion binding
B0004392molecular_functionheme oxygenase (decyclizing) activity
B0004497molecular_functionmonooxygenase activity
B0005506molecular_functioniron ion binding
B0005737cellular_componentcytoplasm
B0016491molecular_functionoxidoreductase activity
B0016705molecular_functionoxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
B0020037molecular_functionheme binding
B0033212biological_processiron import into cell
B0042167biological_processheme catabolic process
B0046872molecular_functionmetal ion binding
Functional Information from PDB Data
site_idAC1
Number of Residues20
DetailsBINDING SITE FOR RESIDUE HEM A 201
ChainResidue
AASN6
ATYR66
APHE72
AHIS76
AVAL79
AILE92
AASN95
ACYN202
AHOH313
AHOH315
AHOH321
ALEU8
AHOH460
AARG21
APHE22
AARG25
AGLN26
AGLY27
AILE28
APHE63

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE CYN A 202
ChainResidue
AASN6
AILE53
AHEM201
AHOH460

site_idAC3
Number of Residues18
DetailsBINDING SITE FOR RESIDUE HEM B 201
ChainResidue
BASN6
BARG21
BPHE22
BARG25
BGLN26
BGLY27
BILE28
BPHE63
BTYR66
BALA75
BHIS76
BVAL79
BASN95
BCYN202
BHOH321
BHOH342
BHOH380
BHOH438

site_idAC4
Number of Residues3
DetailsBINDING SITE FOR RESIDUE CYN B 202
ChainResidue
BASN6
BILE53
BHEM201

site_idAC5
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MG B 203
ChainResidue
BHOH456
BHOH457
BHOH458
BHOH460
BHOH461
BHOH462

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues182
DetailsDomain: {"description":"ABM","evidences":[{"source":"HAMAP-Rule","id":"MF_01272","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues16
DetailsBinding site: {}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues2
DetailsBinding site: {"description":"axial binding residue"}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues2
DetailsSite: {"description":"Transition state stabilizer"}
ChainResidueDetails

239803

PDB entries from 2025-08-06

PDB statisticsPDBj update infoContact PDBjnumon