1ASM

CRYSTAL STRUCTURES OF ESCHERICHIA COLI ASPARTATE AMINOTRANSFERASE IN TWO CONFORMATIONS: COMPARISON OF AN UNLIGANDED OPEN AND TWO LIGANDED CLOSED FORMS

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)	ASPARTATE AMINOTRANSFERASE	polymer	396	43619.2	2	UniProt (P00509) Pfam (PF00155)	Escherichia coli
2	C, E (A, B)	PYRIDOXAL-5'-PHOSPHATE	non-polymer		247.1	2	Chemie (PLP)
3	D, F (A, B)	MALEIC ACID	non-polymer		116.1	2	Chemie (MAE)
4	G, H (A, B)	water	water		18.0	223	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	87238.4
Non-Polymers*	Number of molecules	4
	Total formula weight	726.4
All*	Total formula weight	87964.9

*Water molecules are not included.