1NA6

Crystal structure of restriction endonuclease EcoRII mutant R88A

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)	Restriction endonuclease EcoRII	polymer	404	45457.5	2	GenBank (2961291) Pfam (PF09217) Pfam (PF09019) UniProt (by SIFTS) (P14633)	Escherichia coli	EcoRII; Type II restriction enzyme EcoRII; Endonuclease EcoRII; R.EcoRII
2	C, D (A, B)	water	water		18.0	252	Chemie (HOH)

Sequence modifications

A, B: 3 - 404 (GenBank: 2961291)

PDB	External Database	Details
Met 1	-	cloning artifact
Leu 2	-	cloning artifact
Ala 88	Arg 86	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	90915.0
All*	Total formula weight	90915.0

*Water molecules are not included.