1EGA

CRYSTAL STRUCTURE OF A WIDELY CONSERVED GTPASE ERA

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)	PROTEIN (GTP-BINDING PROTEIN ERA)	polymer	301	33858.1	2	UniProt (P06616) Pfam (PF01926) Pfam (PF07650)	Escherichia coli
2	C, D, E, F, G (A, B)	SULFATE ION	non-polymer		96.1	5	Chemie (SO4)
3	H, I (A, B)	water	water		18.0	149	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	67716.2
Non-Polymers*	Number of molecules	5
	Total formula weight	480.3
All*	Total formula weight	68196.5

*Water molecules are not included.