1GRI

GRB2

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)	GROWTH FACTOR BOUND PROTEIN 2	polymer	217	25240.3	2	UniProt (P62993) Pfam (PF00018) Pfam (PF00017)	Homo sapiens (human)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	50480.7
All*	Total formula weight	50480.7

*Water molecules are not included.