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3R1A

Closed crystal structure of cytochrome P450 2B4 covalently bound to the mechanism-based inactivator tert-butylphenylacetylene

Functional Information from GO Data
ChainGOidnamespacecontents
A0004497molecular_functionmonooxygenase activity
A0005506molecular_functioniron ion binding
A0005737cellular_componentcytoplasm
A0005789cellular_componentendoplasmic reticulum membrane
A0006082biological_processorganic acid metabolic process
A0006805biological_processxenobiotic metabolic process
A0008392molecular_functionarachidonate epoxygenase activity
A0016491molecular_functionoxidoreductase activity
A0016705molecular_functionoxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
A0016712molecular_functionoxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen
A0019373biological_processepoxygenase P450 pathway
A0020037molecular_functionheme binding
A0046872molecular_functionmetal ion binding
B0004497molecular_functionmonooxygenase activity
B0005506molecular_functioniron ion binding
B0005737cellular_componentcytoplasm
B0005789cellular_componentendoplasmic reticulum membrane
B0006082biological_processorganic acid metabolic process
B0006805biological_processxenobiotic metabolic process
B0008392molecular_functionarachidonate epoxygenase activity
B0016491molecular_functionoxidoreductase activity
B0016705molecular_functionoxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
B0016712molecular_functionoxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen
B0019373biological_processepoxygenase P450 pathway
B0020037molecular_functionheme binding
B0046872molecular_functionmetal ion binding
C0004497molecular_functionmonooxygenase activity
C0005506molecular_functioniron ion binding
C0005737cellular_componentcytoplasm
C0005789cellular_componentendoplasmic reticulum membrane
C0006082biological_processorganic acid metabolic process
C0006805biological_processxenobiotic metabolic process
C0008392molecular_functionarachidonate epoxygenase activity
C0016491molecular_functionoxidoreductase activity
C0016705molecular_functionoxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
C0016712molecular_functionoxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen
C0019373biological_processepoxygenase P450 pathway
C0020037molecular_functionheme binding
C0046872molecular_functionmetal ion binding
D0004497molecular_functionmonooxygenase activity
D0005506molecular_functioniron ion binding
D0005737cellular_componentcytoplasm
D0005789cellular_componentendoplasmic reticulum membrane
D0006082biological_processorganic acid metabolic process
D0006805biological_processxenobiotic metabolic process
D0008392molecular_functionarachidonate epoxygenase activity
D0016491molecular_functionoxidoreductase activity
D0016705molecular_functionoxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
D0016712molecular_functionoxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen
D0019373biological_processepoxygenase P450 pathway
D0020037molecular_functionheme binding
D0046872molecular_functionmetal ion binding
E0004497molecular_functionmonooxygenase activity
E0005506molecular_functioniron ion binding
E0005737cellular_componentcytoplasm
E0005789cellular_componentendoplasmic reticulum membrane
E0006082biological_processorganic acid metabolic process
E0006805biological_processxenobiotic metabolic process
E0008392molecular_functionarachidonate epoxygenase activity
E0016491molecular_functionoxidoreductase activity
E0016705molecular_functionoxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
E0016712molecular_functionoxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen
E0019373biological_processepoxygenase P450 pathway
E0020037molecular_functionheme binding
E0046872molecular_functionmetal ion binding
F0004497molecular_functionmonooxygenase activity
F0005506molecular_functioniron ion binding
F0005737cellular_componentcytoplasm
F0005789cellular_componentendoplasmic reticulum membrane
F0006082biological_processorganic acid metabolic process
F0006805biological_processxenobiotic metabolic process
F0008392molecular_functionarachidonate epoxygenase activity
F0016491molecular_functionoxidoreductase activity
F0016705molecular_functionoxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
F0016712molecular_functionoxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen
F0019373biological_processepoxygenase P450 pathway
F0020037molecular_functionheme binding
F0046872molecular_functionmetal ion binding
G0004497molecular_functionmonooxygenase activity
G0005506molecular_functioniron ion binding
G0005737cellular_componentcytoplasm
G0005789cellular_componentendoplasmic reticulum membrane
G0006082biological_processorganic acid metabolic process
G0006805biological_processxenobiotic metabolic process
G0008392molecular_functionarachidonate epoxygenase activity
G0016491molecular_functionoxidoreductase activity
G0016705molecular_functionoxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
G0016712molecular_functionoxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen
G0019373biological_processepoxygenase P450 pathway
G0020037molecular_functionheme binding
G0046872molecular_functionmetal ion binding
H0004497molecular_functionmonooxygenase activity
H0005506molecular_functioniron ion binding
H0005737cellular_componentcytoplasm
H0005789cellular_componentendoplasmic reticulum membrane
H0006082biological_processorganic acid metabolic process
H0006805biological_processxenobiotic metabolic process
H0008392molecular_functionarachidonate epoxygenase activity
H0016491molecular_functionoxidoreductase activity
H0016705molecular_functionoxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
H0016712molecular_functionoxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen, reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen
H0019373biological_processepoxygenase P450 pathway
H0020037molecular_functionheme binding
H0046872molecular_functionmetal ion binding
Functional Information from PDB Data
site_idAC1
Number of Residues22
DetailsBINDING SITE FOR RESIDUE HEM A 500
ChainResidue
AARG98
ATHR302
ATHR303
ATHR306
AVAL367
AHIS369
APRO428
APHE429
ASER430
AARG434
ACYS436
AVAL113
ALEU437
AGLY438
AALA442
AILE114
ATRP121
AARG125
AILE179
ALEU295
AALA298
AGLY299

site_idAC2
Number of Residues7
DetailsBINDING SITE FOR RESIDUE TB2 A 501
ChainResidue
AHOH1
APHE115
APHE206
APHE297
AALA298
AGLU301
ATHR302

site_idAC3
Number of Residues20
DetailsBINDING SITE FOR RESIDUE HEM B 500
ChainResidue
BHOH2
BARG98
BILE114
BTRP121
BARG125
BLEU295
BGLY299
BTHR302
BTHR303
BVAL367
BHIS369
BPRO428
BPHE429
BSER430
BARG434
BILE435
BCYS436
BLEU437
BGLY438
BALA442

site_idAC4
Number of Residues7
DetailsBINDING SITE FOR RESIDUE TB2 B 501
ChainResidue
BHOH2
BPHE115
BPHE206
BPHE297
BALA298
BGLU301
BTHR302

site_idAC5
Number of Residues21
DetailsBINDING SITE FOR RESIDUE HEM C 500
ChainResidue
CARG98
CVAL113
CILE114
CTRP121
CARG125
CILE179
CALA298
CGLY299
CTHR302
CTHR303
CTHR306
CVAL367
CHIS369
CPRO428
CSER430
CARG434
CILE435
CCYS436
CLEU437
CGLY438
CILE441

site_idAC6
Number of Residues5
DetailsBINDING SITE FOR RESIDUE TB2 C 501
ChainResidue
CHOH4
CPHE115
CPHE206
CPHE297
CTHR302

site_idAC7
Number of Residues18
DetailsBINDING SITE FOR RESIDUE HEM D 500
ChainResidue
DGLY438
DARG98
DILE114
DTRP121
DARG125
DALA298
DTHR302
DTHR303
DTHR306
DGLN357
DVAL367
DHIS369
DPRO428
DPHE429
DSER430
DARG434
DCYS436
DLEU437

site_idAC8
Number of Residues7
DetailsBINDING SITE FOR RESIDUE TB2 D 501
ChainResidue
DHOH3
DVAL104
DPHE115
DPHE206
DPHE297
DALA298
DTHR302

site_idAC9
Number of Residues21
DetailsBINDING SITE FOR RESIDUE HEM E 500
ChainResidue
EHOH5
EARG98
EVAL113
EILE114
ETRP121
EARG125
ELEU295
EGLY299
ETHR302
ETHR303
EILE363
EVAL367
EHIS369
EPRO428
EPHE429
ESER430
EARG434
ECYS436
ELEU437
EGLY438
EALA442

site_idBC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE TB2 E 501
ChainResidue
EILE114
EPHE115
EPHE206
EPHE297
EALA298
ETHR302

site_idBC2
Number of Residues22
DetailsBINDING SITE FOR RESIDUE HEM F 500
ChainResidue
FARG98
FVAL113
FILE114
FTRP121
FARG125
FILE179
FLEU295
FGLY299
FTHR302
FTHR303
FGLN357
FVAL367
FHIS369
FLEU392
FPRO428
FPHE429
FSER430
FARG434
FCYS436
FLEU437
FGLY438
FALA442

site_idBC3
Number of Residues4
DetailsBINDING SITE FOR RESIDUE TB2 F 501
ChainResidue
FPHE115
FPHE206
FALA298
FTHR302

site_idBC4
Number of Residues20
DetailsBINDING SITE FOR RESIDUE HEM G 500
ChainResidue
GHOH7
GARG98
GVAL113
GTRP121
GARG125
GILE179
GALA298
GGLY299
GTHR302
GTHR303
GTHR306
GVAL367
GHIS369
GPRO428
GPHE429
GSER430
GARG434
GCYS436
GLEU437
GGLY438

site_idBC5
Number of Residues3
DetailsBINDING SITE FOR RESIDUE TB2 G 501
ChainResidue
GPHE206
GPHE297
GTHR302

site_idBC6
Number of Residues17
DetailsBINDING SITE FOR RESIDUE HEM H 500
ChainResidue
HARG98
HTRP121
HARG125
HILE179
HALA298
HGLY299
HTHR302
HTHR303
HTHR306
HVAL367
HHIS369
HPRO428
HSER430
HARG434
HCYS436
HLEU437
HGLY438

site_idBC7
Number of Residues6
DetailsBINDING SITE FOR RESIDUE TB2 H 501
ChainResidue
HHOH8
HILE114
HPHE297
HALA298
HGLU301
HTHR302

Functional Information from PROSITE/UniProt
site_idPS00086
Number of Residues10
DetailsCYTOCHROME_P450 Cytochrome P450 cysteine heme-iron ligand signature. FSlGKRICLG
ChainResidueDetails
APHE429-GLY438

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues8
DetailsBinding site: {"description":"axial binding residue"}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues8
DetailsModified residue: {"description":"Phosphoserine; by PKA","evidences":[{"source":"UniProtKB","id":"P00176","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

246704

PDB entries from 2025-12-24

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