Structure of PDB 3ivy Chain A

Receptor sequence
>3ivyA (length=399) Species: 83332 (Mycobacterium tuberculosis H37Rv) [Search protein sequence]
PNLPPGFDFTDPAIYAERLPVAEFAELRSAAPIWWNGQDPGKGGGFHDGG
FWAITKLNDVKEISRHSDVFSSYENGVIPRFKNDIAREDIEVQRFVMLNM
DAPHHTRLRKIISRGFTPRAVGRLHDELQERAQKIAAEAAAAGSGDFVEQ
VSCELPLQAIAGLLGVPQEDRGKLFHWSNEMTGNEDPEYAHIDPKASSAE
LIGYAMKMAEEKIVTQLIQADGEKLSDDEFGFFVVMLAVAGNETTRNSIT
QGMMAFAEHPDQWELYKKVRPETAADEIVRWATPVTAFQRTALRDYELSG
VQIKKGQRVVMFYRSANFDEEVFQDPFTFNILRNPNPHVGFGGTGAHYCI
GANLARMTINLIFNAVADHMPDLKPISAPERLRSGWLNGIKHWQVDYTG
3D structure
PDB3ivy The Structure of Mycobacterium tuberculosis CYP125: molecular basis for cholesterol binding in a P450 needed for host infection.
ChainA
Resolution1.352 Å
3D
structure
Catalytic site residues are labeled in the structure
[Spin on]
[Spin off]
[Reset orientation]

[High quality]
[Low quality]

[White background]
[Black background]

[Download]
[Download structure with residue number starting from 1]
Enzymatic activity
Catalytic site (original residue number in PDB) G202 A268 E271 T272 T273 C377 I378 G379 T386 L415
Catalytic site (residue number reindexed from 1) G183 A240 E243 T244 T245 C349 I350 G351 T358 L387
Enzyme Commision number 1.14.15.29: cholest-4-en-3-one 26-monooxygenase [(25S)-3-oxocholest-4-en-26-oate forming].
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 H124 R128 M264 A268 G269 T272 T273 P312 F316 R318 G368 F369 H375 C377 I378 G379 A383 H105 R109 M236 A240 G241 T244 T245 P284 F288 R290 G340 F341 H347 C349 I350 G351 A355
Gene Ontology
Molecular Function
GO:0004497 monooxygenase activity
GO:0005506 iron ion binding
GO:0008395 steroid hydroxylase activity
GO:0016705 oxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
GO:0020037 heme binding
GO:0036199 cholest-4-en-3-one 26-monooxygenase activity
GO:0046872 metal ion binding
Biological Process
GO:0006707 cholesterol catabolic process
GO:0008203 cholesterol metabolic process
GO:0016042 lipid catabolic process
GO:0051701 biological process involved in interaction with host

View graph for
Molecular Function
View graph for
Biological Process
External links
PDB RCSB:3ivy, PDBe:3ivy, PDBj:3ivy
PDBsum3ivy
PubMed19846552
UniProtP9WPP1|CP125_MYCTU Steroid C26-monooxygenase (Gene Name=cyp125)

[Back to BioLiP]