1FC4

2-AMINO-3-KETOBUTYRATE COA LIGASE

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)	2-AMINO-3-KETOBUTYRATE CONENZYME A LIGASE	polymer	401	44013.0	2	UniProt (P07912) Pfam (PF00155) UniProt (by SIFTS) (P0AB77)	Escherichia coli
2	C, E (A, B)	2-AMINO-3-KETOBUTYRIC ACID	non-polymer		117.1	2	Chemie (AKB)
3	D, F (A, B)	PYRIDOXAL-5'-PHOSPHATE	non-polymer		247.1	2	Chemie (PLP)
4	G, H (A, B)	water	water		18.0	1103	Chemie (HOH)

Sequence modifications

A, B: 1 - 398 (UniProt: P07912)

PDB	External Database	Details
Gly -2	-	cloning artifact
Ser -1	-	cloning artifact
His 0	-	cloning artifact
Mse 1	Met 1	modified residue
Mse 69	Met 69	modified residue
Mse 76	Met 76	modified residue
Mse 102	Met 102	modified residue
Mse 158	Met 158	modified residue
Mse 186	Met 186	modified residue
Mse 208	Met 208	modified residue
Mse 232	Met 232	modified residue
Mse 291	Met 291	modified residue
Mse 313	Met 313	modified residue
Mse 331	Met 331	modified residue
Mse 371	Met 371	modified residue

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	88026.0
Non-Polymers*	Number of molecules	4
	Total formula weight	728.5
All*	Total formula weight	88754.5

*Water molecules are not included.