3N9Y

Crystal structure of human CYP11A1 in complex with cholesterol

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Cholesterol side-chain cleavage enzyme	polymer	487	56885.1	2	UniProt (P05108) Pfam (PF00067) In PDB	Homo sapiens (human)	Cytochrome P450 11A1, CYPXIA1, Cytochrome P450(scc), Cholesterol desmolase
2	C, D	Adrenodoxin	polymer	114	12571.0	2	UniProt (P10109) Pfam (PF00111) In PDB	Homo sapiens (human)	Adrenal ferredoxin, Ferredoxin-1, Hepatoredoxin
3	A, B	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	2	Chemie (HEM)
4	A, B	CHOLESTEROL	non-polymer		386.7	2	Chemie (CLR)
5	C, D	FE2/S2 (INORGANIC) CLUSTER	non-polymer		175.8	2	Chemie (FES)
6		water	water		18.0	505	Chemie (HOH)

Sequence modifications

A, B: 2 - 482 (UniProt: P05108)

PDB	External Database	Details
His 483	-	expression tag
His 484	-	expression tag
His 485	-	expression tag
His 486	-	expression tag
His 487	-	expression tag
His 488	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	138912.2
Non-Polymers*	Number of molecules	6
	Total formula weight	2357.9
All*	Total formula weight	141270.1

*Water molecules are not included.