2WYX

Neutron structure of a class A Beta-lactamase Toho-1 E166A R274N R276N triple mutant

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	BETA-LACTAMSE TOHO-1	polymer	256	27503.1	1	UniProt (Q47066) Pfam (PF00144) Pfam (PF00905) Pfam (PF13354)	ESCHERICHIA COLI
2	B (A)	water	water		18.0	160	Chemie (DOD)

Sequence modifications

A: 29 - 287 (UniProt: Q47066)

PDB	External Database	Details
Ala 166	Glu 169	engineered mutation
Asn 274	Arg 275	engineered mutation
Asn 276	Arg 277	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	27503.1
All*	Total formula weight	27503.1

*Water molecules are not included.