1V7Y

Crystal structure of tryptophan synthase alpha-subunit from Escherichia coli at room temperature

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)	Tryptophan synthase alpha chain	polymer	268	28752.1	2	UniProt (P0A877) Pfam (PF00290)	Escherichia coli
2	C, D (A, B)	SULFATE ION	non-polymer		96.1	2	Chemie (SO4)
3	E, F (A, B)	water	water		18.0	87	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	57504.2
Non-Polymers*	Number of molecules	2
	Total formula weight	192.1
All*	Total formula weight	57696.3

*Water molecules are not included.