Structure of PDB 4kpb Chain B

Receptor sequence
>4kpbB (length=444) Species: 1404 (Priestia megaterium) [Search protein sequence]
EMPQPKTFGELKNLPLLNTDKPVQALMKIADELGEIFKFEAPGEVTRYLS
SQRLIKEACDESRFDKNLSQALKFVRDFAGDGLFTSWTHEKNWKKAHNIL
LPSFSQQAMKGYHAMMVDIAVQLVQKWERLNADEHIEVPEDMTRLTLDTI
GLCGFNYRFNSFYRDQPHPFITSMVRALDEAMNKLYDENKRQFQEDIKVM
NDLVDKIIADRKASQSDDLLTHMLNGKDPETGEPLDDENIRYQIITFLIA
GHETTSGLLSFALYFLVKNPHVLQKAAEEAARVLVDPVPSYKQVKQLKYV
GMVLNEALRLWPTAPAFSLYAKEDTVLGGEYPLEKGDELMVLIPQLHRDK
TIWGDDVEEFRPERFENPSAIPQHAFKPFGNGQRACIGQQFALHEATLVL
GMMLKHFDFEDHTNYELDIKETLTLKPEGFVVKAKSKKIPLGGI
3D structure
PDB4kpb Structural Evidence: A Single Charged Residue Affects Substrate Binding in Cytochrome P450 BM-3.
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) T254 F379 C386
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 A264 G265 T268 T269 F331 P392 F393 G394 R398 C400 I401 G402 A406 K66 L83 F84 W93 A250 G251 T254 T255 F317 P378 F379 G380 R384 C386 I387 G388 A392
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:4kpb, PDBe:4kpb, PDBj:4kpb
PDBsum4kpb
PubMed23829560
UniProtP14779|CPXB_PRIM2 Bifunctional cytochrome P450/NADPH--P450 reductase (Gene Name=cyp102A1)

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