3B3X

Crystal structure of class A beta-lactamase of Bacillus licheniformis BS3 with aminocitrate

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Beta-lactamase	polymer	265	29513.3	2	UniProt (P94458) Pfam (PF00144) UniProt (by SIFTS) (P00808) In PDB	Bacillus licheniformis
2	A, B	2-(carboxymethyl)-D-aspartic acid	non-polymer		191.1	2	Chemie (A33)
3		water	water		18.0	156	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	59026.6
Non-Polymers*	Number of molecules	2
	Total formula weight	382.3
All*	Total formula weight	59408.9

*Water molecules are not included.