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5Y5I

Time-resolved SFX structure of cytochrome P450nor: 20 ms after photo-irradiation of caged NO in the presence of NADH (NO-bound state), light data

Functional Information from GO Data
ChainGOidnamespacecontents
A0004497molecular_functionmonooxygenase activity
A0005506molecular_functioniron ion binding
A0016491molecular_functionoxidoreductase activity
A0016705molecular_functionoxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
A0020037molecular_functionheme binding
A0046872molecular_functionmetal ion binding
A0102199molecular_functionnitric oxide reductase [NAD(P)H] activity
B0004497molecular_functionmonooxygenase activity
B0005506molecular_functioniron ion binding
B0016491molecular_functionoxidoreductase activity
B0016705molecular_functionoxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
B0020037molecular_functionheme binding
B0046872molecular_functionmetal ion binding
B0102199molecular_functionnitric oxide reductase [NAD(P)H] activity
Functional Information from PDB Data
site_idAC1
Number of Residues23
Detailsbinding site for residue HEM A 501
ChainResidue
APHE86
AMET247
AGLY344
APHE345
AGLY346
APHE347
AHIS350
ACYS352
AILE353
AALA354
ANO502
AVAL87
AHOH609
AHOH648
AHOH692
AHOH710
AHIS94
AARG98
AILE153
ALEU236
AALA239
AGLY240
AMET244

site_idAC2
Number of Residues4
Detailsbinding site for residue NO A 502
ChainResidue
AALA239
AHEM501
AGOL503
AHOH710

site_idAC3
Number of Residues4
Detailsbinding site for residue GOL A 503
ChainResidue
AALA239
ASER286
ANO502
AHOH601

site_idAC4
Number of Residues23
Detailsbinding site for residue HEM B 501
ChainResidue
BPHE86
BVAL87
BHIS94
BARG98
BILE153
BLEU236
BGLY240
BMET244
BMET247
BGLY344
BPHE345
BGLY346
BPHE347
BHIS350
BCYS352
BILE353
BALA354
BNO502
BGOL503
BHOH602
BHOH607
BHOH619
BHOH677

site_idAC5
Number of Residues4
Detailsbinding site for residue NO B 502
ChainResidue
BALA239
BHEM501
BGOL503
BHOH677

site_idAC6
Number of Residues7
Detailsbinding site for residue GOL B 503
ChainResidue
BVAL87
BALA239
BSER286
BALA289
BHEM501
BNO502
BHOH619

site_idAC7
Number of Residues10
Detailsbinding site for residue GOL B 504
ChainResidue
BALA55
BLEU60
BLYS62
BMET89
BASP90
BPRO91
BARG292
BASP349
BHIS350
BHOH691

Functional Information from PROSITE/UniProt
site_idPS00086
Number of Residues10
DetailsCYTOCHROME_P450 Cytochrome P450 cysteine heme-iron ligand signature. FGfGDHRCIA
ChainResidueDetails
APHE345-ALA354

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

Catalytic Information from CSA
site_idMCSA1
Number of Residues4
DetailsM-CSA 473
ChainResidueDetails
ATHR243steric role
ASER286proton shuttle (general acid/base)
ACYS352activator, metal ligand
AASP393proton shuttle (general acid/base)

site_idMCSA2
Number of Residues4
DetailsM-CSA 473
ChainResidueDetails
BTHR243steric role
BSER286proton shuttle (general acid/base)
BCYS352activator, metal ligand
BASP393proton shuttle (general acid/base)

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PDB entries from 2026-03-11

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