4KGE

Crystal structure of near-infrared fluorescent protein with an extended stokes shift, pH 4.5

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)	TagRFP675, red fluorescent protein	polymer	245	27797.7	2		synthetic construct (artificial gene)
2	C, D, E (A, B)	CHLORIDE ION	non-polymer		35.5	3	Chemie (CL)
3	F, G (A, B)	water	water		18.0	242	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	55595.3
Non-Polymers*	Number of molecules	3
	Total formula weight	106.4
All*	Total formula weight	55701.7

*Water molecules are not included.