Structure of PDB 4key Chain A

Receptor sequence
>4keyA (length=450) Species: 1404 (Priestia megaterium) [Search protein sequence]
KEMPQPKTFGELKNLPLLNTDKPVQALMKIADELGEIFKFEAPGRVTRYL
SSQRLIKEACDESRFDKNLSQALKFVRDFFGDGLVTSWTHEKNWKKAHNI
LLPSFSQQAMKGYHAMMVDIAVQLVQKWERLNADEHIEVPEDMTRLTLDT
IGLCGFNYRFNSFYRDQPHPFITSMVRALDEAMNKLQRANPDDPAYDENK
RQFQEDIKVMNDLVDKIIADRKASSDDLLTHMLNGKDPETGEPLDDENIR
YQIITFLIAGHETTSGLLSFALYFLVKNPHVLQKAAEEAARVLVDPVPSY
KQVKQLKYVGMVLNEALRLWPTAPAFSLYAKEDTVLGGEYPLEKGDELMV
LIPQLHRDKTIWGDDVEEFRPERFENPSAIPQHAFKPFGNGQRACIGQQF
ALHEATLVLGMMLKHFDFEDHTNYELDIKETLTLKPEGFVVKAKSKKIPL
3D structure
PDB4key Key Mutations Alter the Cytochrome P450 BM3 Conformational Landscape and Remove Inherent Substrate Bias.
ChainA
Resolution2.05 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) T268 F393 C400
Catalytic site (residue number reindexed from 1) T263 F388 C395
Enzyme Commision number 1.14.14.1: unspecific monooxygenase.
1.6.2.4: NADPH--hemoprotein reductase.
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 A K69 L86 V87 W96 F107 F261 A264 G265 T268 F331 P392 F393 R398 C400 I401 G402 A406 K67 L84 V85 W94 F105 F256 A259 G260 T263 F326 P387 F388 R393 C395 I396 G397 A401
BS02 1C6 A A74 L188 A328 L437 A72 L186 A323 L432 MOAD: Kd=0.212uM
Gene Ontology
Molecular Function
GO:0004497 monooxygenase activity
GO:0005506 iron ion binding
GO:0016705 oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
GO:0020037 heme binding

View graph for
Molecular Function
External links
PDB RCSB:4key, PDBe:4key, PDBj:4key
PDBsum4key
PubMed23828198
UniProtP14779|CPXB_PRIM2 Bifunctional cytochrome P450/NADPH--P450 reductase (Gene Name=cyp102A1)

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