9O8V

Apo Form of Photoactive Yellow Protein

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)	Photoactive yellow protein	polymer	125	13888.6	2	UniProt (P16113) Pfam (PF00989)	Halorhodospira halophila	PYP
2	C, D, E, F, G... (A, B)	CHLORIDE ION	non-polymer		35.5	6	Chemie (CL)
3	I, J (A, B)	water	water		18.0	171	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	27777.2
Non-Polymers*	Number of molecules	6
	Total formula weight	212.7
All*	Total formula weight	27989.9

*Water molecules are not included.