Structure of PDB 2x5w Chain A

Receptor sequence
>2x5wA (length=409) Species: 83332 (Mycobacterium tuberculosis H37Rv) [Search protein sequence]
SPNLPPGFDFTDPAIYAERLPVAEFAELRSAAPIWWNGQDPGKGGGFHDG
GFWAITKLNDVKEISRHSDVFSSYENGVIPRFKNDIAREDIEVQRFVMLN
MDAPHHTRLRKIISRGFTPRAVGRLHDELQERAQKIAAEAAAAGSGDFVE
QVSCELPLQAIAGLLGVPQEDRGKLFHWSNEMTGNEDPEYAHIDPKASSA
ELIGYAMKMAEEKAKNPADDIVTQLIQADIDGEKLSDDEFGFFVVMLAVA
GNETTRNSITQGMMAFAEHPDQWELYKKVRPETAADEIVRWATPVTAFQR
TALRDYELSGVQIKKGQRVVMFYRSANFDEEVFQDPFTFNILRNPNPHVG
FGGTGAHYCIGANLARMTINLIFNAVADHMPDLKPISAPERLRSGWLNGI
KHWQVDYTG
3D structure
PDB2x5w Mycobacterium Tuberculosis Cyp125A1, a Steroid C27 Monooxygenase that Detoxifies Intracellularly Generated Cholest-4-En-3-One.
ChainA
Resolution1.58 Å
3D
structure
Catalytic site residues are labeled in the structure
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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) G184 A250 E253 T254 T255 C359 I360 G361 T368 L397
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 K2B A D108 Q112 M200 P213 K214 V267 A268 W414 D90 Q94 M182 P195 K196 V249 A250 W396 MOAD: Kd=1.18uM
BS02 HEM A M116 L117 H124 R128 F135 M264 A268 T272 T273 P312 F316 G368 F369 H375 C377 I378 G379 A383 M98 L99 H106 R110 F117 M246 A250 T254 T255 P294 F298 G350 F351 H357 C359 I360 G361 A365
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:2x5w, PDBe:2x5w, PDBj:2x5w
PDBsum2x5w
PubMed20545858
UniProtP9WPP1|CP125_MYCTU Steroid C26-monooxygenase (Gene Name=cyp125)

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