Structure of PDB 4ejj Chain B

Receptor sequence
>4ejjB (length=464) Species: 9606 (Homo sapiens) [Search protein sequence]
GKLPPGPTPLPFIGNYLQLNTEQMYNSLMKISERYGPVFTIHLGPRRVVV
LCGHDAVREALVDQAEEFSGRGEQATFDWVFKGYGVVFSNGERAKQLRRF
SIATLRDFGVGKRGIEERIQEEAGFLIDALRGTGGANIDPTFFLSRTVSN
VISSIVFGDRFDYKDKEFLSLLRMMLGIFQFTSTSTGQLYEMFSSVMKHL
PGPQQQAFQLLQGLEDFIAKKVEHNQRTLDPNSPRDFIDSFLIRMQEEEK
NPNTEFYLKNLVMTTLNLFIGGTETVSTTLRYGFLLLMKHPEVEAKVHEE
IDRVIGKNRQPKFEDRAKMPYMEAVIHEIQRFGDVIPMSLARRVKKDTKF
RDFFLPKGTEVYPMLGSVLRDPSFFSNPQDFNPQHFLNEKGQFKKSDAFV
PFSIGKRNCFGEGLARMELFLFFTTVMQNFRLKSSQSPKDIDVSPKHVGF
ATIPRNYTMSFLPR
3D structure
PDB4ejj Nicotine and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone binding and access channel in human cytochrome P450 2A6 and 2A13 enzymes.
ChainB
Resolution2.3 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) T305 F432 C439
Catalytic site (residue number reindexed from 1) T275 F402 C409
Enzyme Commision number 1.14.14.-
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 HEM B R101 V117 R128 G301 G302 T305 R372 P431 F432 S433 R437 N438 C439 F440 G441 R71 V87 R98 G271 G272 T275 R342 P401 F402 S403 R407 N408 C409 F410 G411
BS02 NCT B F107 T305 F77 T275 MOAD: Kd=470uM
BindingDB: Ki=130000nM,Kd=470000nM,IC50=2.63e+4nM
Gene Ontology
Molecular Function
GO:0004497 monooxygenase activity
GO:0005506 iron ion binding
GO:0005515 protein binding
GO:0008389 coumarin 7-hydroxylase activity
GO:0008392 arachidonate epoxygenase activity
GO:0016705 oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
GO:0016712 oxidoreductase 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
GO:0019899 enzyme binding
GO:0020037 heme binding
GO:0046872 metal ion binding
Biological Process
GO:0006629 lipid metabolic process
GO:0006805 xenobiotic metabolic process
GO:0008202 steroid metabolic process
GO:0009804 coumarin metabolic process
GO:0019373 epoxygenase P450 pathway
GO:0042178 xenobiotic catabolic process
GO:0046226 coumarin catabolic process
Cellular Component
GO:0005737 cytoplasm
GO:0005783 endoplasmic reticulum
GO:0005789 endoplasmic reticulum membrane
GO:0005881 cytoplasmic microtubule
GO:0016020 membrane
GO:0043231 intracellular membrane-bounded organelle

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:4ejj, PDBe:4ejj, PDBj:4ejj
PDBsum4ejj
PubMed22700965
UniProtP11509|CP2A6_HUMAN Cytochrome P450 2A6 (Gene Name=CYP2A6)

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