6OZB

Crystal structure of the phycoerythrobilin-bound GAF domain from a cyanobacterial phytochrome

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	Two-component sensor histidine kinase	polymer	207	23004.1	3	UniProt (Q8YTL8) Pfam (PF01590) In PDB	Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576)
2	A, B, C	PHYCOERYTHROBILIN	non-polymer		588.7	3	Chemie (PEB)
3		water	water		18.0	691	Chemie (HOH)

Sequence modifications

A, B, C: 1 - 200 (UniProt: Q8YTL8)

PDB	External Database	Details
His 71	Tyr 71	engineered mutation
Glu 201	-	expression tag
His 202	-	expression tag
His 203	-	expression tag
His 204	-	expression tag
His 205	-	expression tag
His 206	-	expression tag
His 207	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	69012.3
Non-Polymers*	Number of molecules	3
	Total formula weight	1766.1
All*	Total formula weight	70778.4

*Water molecules are not included.