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3QGP

Crystal structure of IsdI 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 Residues18
DetailsBINDING SITE FOR RESIDUE HEM A 200
ChainResidue
AASN6
ATRP66
AHIS76
AVAL79
AASN95
AVAL97
AHOH147
AHOH148
AHOH154
ACYN201
AARG21
APHE22
AARG25
AGLN26
AGLY27
AILE28
AILE53
ATHR55

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE CYN A 201
ChainResidue
AASN6
APHE22
AILE53
AHEM200

site_idAC3
Number of Residues19
DetailsBINDING SITE FOR RESIDUE HEM B 200
ChainResidue
BASN6
BARG21
BPHE22
BARG25
BGLN26
BGLY27
BILE28
BILE53
BTHR55
BTRP66
BALA75
BHIS76
BVAL79
BASN95
BVAL97
BHOH123
BCYN201
BHOH233
BHOH235

site_idAC4
Number of Residues4
DetailsBINDING SITE FOR RESIDUE CYN B 201
ChainResidue
BASN6
BPHE22
BILE53
BHEM200

site_idAC5
Number of Residues6
DetailsBINDING SITE FOR RESIDUE MG B 300
ChainResidue
BHOH211
BHOH212
BHOH213
BHOH214
BHOH215
BHOH216

site_idAC6
Number of Residues4
DetailsBINDING SITE FOR RESIDUE MG B 301
ChainResidue
BHOH170
BHOH249
BHOH251
BHOH252

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

247536

PDB entries from 2026-01-14

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