9OQE

X-ray diffraction structure of apo-form CTX-M-14 beta-lactamase

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)	Beta-lactamase	polymer	263	28000.5	2	UniProt (Q9L5C7) Pfam (PF00144) Pfam (PF13354)	Escherichia coli
2	C, D, F, G, H (A, B)	PHOSPHATE ION	non-polymer		95.0	5	Chemie (PO4)
3	E, I (A, B)	POTASSIUM ION	non-polymer		39.1	2	Chemie (K)
4	J, K (A, B)	water	water		18.0	774	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	56001.1
Non-Polymers*	Number of molecules	7
	Total formula weight	553.1
All*	Total formula weight	56554.1

*Water molecules are not included.