5HGR

Structure of Anabaena (Nostoc) sp. PCC 7120 Orange Carotenoid Protein binding canthaxanthin

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Orange Carotenoid Protein (OCP)	polymer	325	36202.2	2	UniProt (Q8YSD9) Pfam (PF09150) Pfam (PF02136) In PDB	Nostoc sp. (strain PCC 7120 / UTEX 2576)
2	A, B	beta,beta-carotene-4,4'-dione	non-polymer		564.8	2	Chemie (45D)
3		water	water		18.0	1011	Chemie (HOH)

Sequence modifications

A, B: 1 - 319 (UniProt: Q8YSD9)

PDB	External Database	Details
His 320	-	expression tag
His 321	-	expression tag
His 322	-	expression tag
His 323	-	expression tag
His 324	-	expression tag
His 325	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	72404.4
Non-Polymers*	Number of molecules	2
	Total formula weight	1129.7
All*	Total formula weight	73534.1

*Water molecules are not included.