4I8V

Human Cytochrome P450 1A1 in complex with alpha-naphthoflavone

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D (A, B, C, D)	Cytochrome P450 1A1	polymer	491	55944.2	4	UniProt (P04798) Pfam (PF00067)	Homo sapiens (human)	CYPIA1, Cytochrome P450 form 6, Cytochrome P450-C, Cytochrome P450-P1
2	E, I, L, N (A, B, C, D)	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	4	Chemie (HEM)
3	F, J, M, O (A, B, C, D)	2-PHENYL-4H-BENZO[H]CHROMEN-4-ONE	non-polymer		272.3	4	Chemie (BHF)
4	G, H, K (A, B)	NITRATE ION	non-polymer		62.0	3	Chemie (NO3)
5	P, Q, R, S (A, B, C, D)	water	water		18.0	181	Chemie (HOH)

Sequence modifications

A, B, C, D: 35 - 512 (UniProt: P04798)

PDB	External Database	Details
Met 28	-	expression tag
Ala 29	-	expression tag
Lys 30	-	expression tag
Lys 31	-	expression tag
Thr 32	-	expression tag
Ser 33	-	expression tag
Ser 34	-	expression tag
His 513	-	expression tag
His 514	-	expression tag
His 515	-	expression tag
His 516	-	expression tag
His 517	-	expression tag
His 518	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	223776.6
Non-Polymers*	Number of molecules	11
	Total formula weight	3741.2
All*	Total formula weight	227517.8

*Water molecules are not included.