1AIB

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	ASPARTATE AMINOTRANSFERASE	polymer	396	43628.2	2	UniProt (P00509) Pfam (PF00155) In PDB	Escherichia coli
2	A, B	4'-DEOXY-4'-AMINOPYRIDOXAL-5'-PHOSPHATE	non-polymer		248.2	2	Chemie (PMP)
3	A, B	2-OXOGLUTARIC ACID	non-polymer		146.1	2	Chemie (AKG)

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	4
	Total formula weight	788.5
All*	Total formula weight	88044.9

*Water molecules are not included.