1AIA

STRUCTURAL BASIS FOR THE CATALYTIC ACTIVITY OF ASPARTATE AMINOTRANSFERASE K258H LACKING THE PYRIDOXAL-5'-PHOSPHATE BINDING LYSINE RESIDUE

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	43628.2	2	UniProt (P00509) Pfam (PF00155)	Escherichia coli
2	C, D (A, B)	4'-DEOXY-4'-AMINOPYRIDOXAL-5'-PHOSPHATE	non-polymer		248.2	2	Chemie (PMP)

Sequence modifications

A, B: 5 - 409 (UniProt: P00509)

PDB	External Database	Details
His 258	Lys 246	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	87256.4
Non-Polymers*	Number of molecules	2
	Total formula weight	496.3
All*	Total formula weight	87752.7

*Water molecules are not included.