4BWI

Structure of the phytochrome Cph2 from Synechocystis sp. PCC6803

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	PHYTOCHROME-LIKE PROTEIN CPH2	polymer	432	49225.7	2	UniProt (Q55434) Pfam (PF01590) In PDB	SYNECHOCYSTIS SP.	BACTERIOPHYTOCHROME CPH2
2	A	GLUTAMIC ACID	non-polymer		147.1	1	Chemie (GLU)
3	A, B	PHYCOCYANOBILIN	non-polymer		588.7	2	Chemie (CYC)
4	A, B	GLYCEROL	non-polymer		92.1	2	Chemie (GOL)
5	A, B	FORMIC ACID	non-polymer		46.0	7	Chemie (FMT)
6		water	water		18.0	181	Chemie (HOH)

Sequence modifications

A, B: 2 - 424 (UniProt: Q55434)

PDB	External Database	Details
Ser 1	-	expression tag
Ala 425	-	expression tag
Ser 426	-	expression tag
His 427	-	expression tag
His 428	-	expression tag
His 429	-	expression tag
His 430	-	expression tag
His 431	-	expression tag
His 432	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	98451.4
Non-Polymers*	Number of molecules	12
	Total formula weight	1830.9
All*	Total formula weight	100282.3

*Water molecules are not included.