Structure of PDB 8hos Chain B

Receptor sequence

>8hosB (length=451) Species: 1404 (Priestia megaterium)

KEMPQPKTFGELKNLPLLNTDKPVQALMKIADELGEIFKFEAPGRVTRYL
SSQRLIKEACDESRFDKNLSQALKFVRDFAGDGLATSWTHEKNWKKAHNI
LLPSFSQQAMKGYHAMMVDIAVQLVQKWERLNADEHIEVPEDMTRLTLDT
IGLCGFNYRFNSFYRDQPHPFITSMVRALDEAMNKLQRPDDPAYDENKRQ
FQEDIKVMNDLVDKIIADRKASGEQSDDLLTHMLNGKDPETGEPLDDENI
RYQIITFLIAGHETTSGLLSFALYFLVKNPHVLQKAAEEAARVLVDPVPS
YKQVKQLKYVGMVLNEALRLWPTAPAFSLYAKEDTVLGGEYPLEKGDELM
VLIPQLHRDKTIWGDDVEEFRPERFENPSAIPQHAFKPFGNGQRACIGQQ
FALHEATLVLGMMLKHFDFEDHTNYELDIKETLTLKPEGFVVKAKSKKIP
L

3D structure

• PDB: 8hos Crystal structure of the P450 BM3 heme domain mutant F87A in complex with Im-C6-Phe(4NO2)-Tyr
• Chain: B
• Resolution: 1.82 Å

Enzymatic activity

• 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	peptide	B	L20 P25 F42 R47 Y51 S72 Q73 A74 M185 L188 Q189 A328 A330 M354 L437	L18 P23 F40 R45 Y49 S70 Q71 A72 M183 L186 Q187 A324 A326 M350 L433
BS02	HEM	B	K69 L86 A87 W96 A264 G265 T268 T269 F331 P392 F393 G394 R398 C400 I401 G402 A406	K67 L84 A85 W94 A260 G261 T264 T265 F327 P388 F389 G390 R394 C396 I397 G398 A402

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

External links

• PDB: RCSB:8hos, PDBe:8hos, PDBj:8hos
• PDBsum: 8hos
• PubMed: 37713467
• UniProt: P14779|CPXB_PRIM2 Bifunctional cytochrome P450/NADPH--P450 reductase (Gene Name=cyp102A1)