7EKR

The crystal structure of Orange carotenoid binding protein 1 (OCP1)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Orange carotenoid protein	polymer	355	39313.8	2	UniProt (A0A7M3UF22) Pfam (PF09150) Pfam (PF02136)	Gloeocapsa sp. PCC 7513
2	C, D (A, B)	beta,beta-carotene-4,4'-dione	non-polymer		564.8	2	Chemie (45D)
3	E, F (A, B)	water	water		18.0	365	Chemie (HOH)

Sequence modifications

A, B: 1 - 319 (UniProt: A0A7M3UF22)

PDB	External Database	Details
Met -35	-	initiating methionine
Gly -34	-	expression tag
Gly -33	-	expression tag
Ser -32	-	expression tag
His -31	-	expression tag
His -30	-	expression tag
His -29	-	expression tag
His -28	-	expression tag
His -27	-	expression tag
His -26	-	expression tag
Gly -25	-	expression tag
Met -24	-	expression tag
Ala -23	-	expression tag
Ser -22	-	expression tag
Met -21	-	expression tag
Thr -20	-	expression tag
Gly -19	-	expression tag
Gly -18	-	expression tag
Gln -17	-	expression tag
Gln -16	-	expression tag
Met -15	-	expression tag
Gly -14	-	expression tag
Arg -13	-	expression tag
Asp -12	-	expression tag
Leu -11	-	expression tag
Tyr -10	-	expression tag
Asp -9	-	expression tag
Asp -8	-	expression tag
Asp -7	-	expression tag
Asp -6	-	expression tag
Lys -5	-	expression tag
Asp -4	-	expression tag
Pro -3	-	expression tag
Ser -2	-	expression tag
Ser -1	-	expression tag
Arg 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	78627.7
Non-Polymers*	Number of molecules	2
	Total formula weight	1129.7
All*	Total formula weight	79757.3

*Water molecules are not included.