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2ZYL

Crystal structure of 3-ketosteroid-9-alpha-hydroxylase (KshA) from M. tuberculosis

Functional Information from GO Data
ChainGOidnamespacecontents
A0004497molecular_functionmonooxygenase activity
A0005506molecular_functioniron ion binding
A0006629biological_processlipid metabolic process
A0006694biological_processsteroid biosynthetic process
A0006707biological_processcholesterol catabolic process
A0008202biological_processsteroid metabolic process
A0008203biological_processcholesterol metabolic process
A0016042biological_processlipid catabolic process
A0016491molecular_functionoxidoreductase activity
A0016705molecular_functionoxidoreductase activity, acting on paired donors, with incorporation or reduction of molecular oxygen
A0036200molecular_function3-ketosteroid 9-alpha-monooxygenase activity
A0046872molecular_functionmetal ion binding
A0047086molecular_functionketosteroid monooxygenase activity
A0051536molecular_functioniron-sulfur cluster binding
A0051537molecular_function2 iron, 2 sulfur cluster binding
A0070207biological_processprotein homotrimerization
A0070723biological_processresponse to cholesterol
Functional Information from PDB Data
site_idAC1
Number of Residues8
DetailsBINDING SITE FOR RESIDUE FES A 451
ChainResidue
ACYS67
AHIS69
AMET70
AGLY72
ACYS86
APHE88
AHIS89
ATRP91

site_idAC2
Number of Residues4
DetailsBINDING SITE FOR RESIDUE FE2 A 452
ChainResidue
AHIS186
AASP304
AHOH561
AHIS181

site_idAC3
Number of Residues6
DetailsBINDING SITE FOR RESIDUE NA A 387
ChainResidue
ATHR177
AASP178
AMET179
AGLU322
AASP323
AHOH435

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues102
DetailsDomain: {"description":"Rieske","evidences":[{"source":"PROSITE-ProRule","id":"PRU00628","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues4
DetailsBinding site: {"evidences":[{"source":"PROSITE-ProRule","id":"PRU00628","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"19234303","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"25049233","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues1
DetailsBinding site: {"evidences":[{"source":"UniProtKB","id":"F1CMY8","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues3
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"19234303","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"25049233","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues2
DetailsAnnotated By Reference To The Literature 1ndo
ChainResidueDetails
AHIS181
AASP178

site_idCSA2
Number of Residues1
DetailsAnnotated By Reference To The Literature 1ndo
ChainResidueDetails
AHIS89

247536

PDB entries from 2026-01-14

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