Structure of PDB 3ekf Chain B

Receptor sequence
>3ekfB (length=452) Species: 1404 (Priestia megaterium) [Search protein sequence]
IKEMPQPKTFGELKNLPLLNTDKPVQALMKIADELGEIFKFEAPGRVTRY
LSSQRLIKEACDESRFDKNLSQALKFVRDFAGDGLFTSWTHEKNWKKAHN
ILLPSFSQQAMKGYHAMMVDIAVQLVQKWERLNADEHIEVPEDMTRLTLD
TIGLCGFNYRFNSFYRDQPHPFITSMVRALDEAMNKLQRANPDDPAYDEN
KRQFQEDIKVMNDLVDKIIADRKASQSDDLLTHMLNGKDPEPLDDENIRY
QIITFLIQGHETTSGLLSFALYFLVKNPHVLQKAAEEAARVLVDPVPSYK
QVKQLKYVGMVLNEALRLWPTAPAFSLYAKEDTVLGGEYPLEKGDELMVL
IPQLHRDKTIWGDDVEEFRPERFENPSAIPQHAFKPFGNGQRACIGQQFA
LHEATLVLGMMLKHFDFEDHTNYELDIKETLTLKPEGFVVKAKSKKIPLG
GI
3D structure
PDB3ekf Novel haem co-ordination variants of flavocytochrome P450BM3.
ChainB
Resolution2.1 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) T262 F387 C394
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 B K69 L86 F87 W96 F261 Q264 G265 T268 F331 P392 F393 G394 R398 C400 I401 G402 A406 K68 L85 F86 W95 F255 Q258 G259 T262 F325 P386 F387 G388 R392 C394 I395 G396 A400
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:3ekf, PDBe:3ekf, PDBj:3ekf
PDBsum3ekf
PubMed18721129
UniProtP14779|CPXB_PRIM2 Bifunctional cytochrome P450/NADPH--P450 reductase (Gene Name=cyp102A1)

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