4IA8

Crystal Structure of a Y37A mutant of the Restriction-Modification Controller Protein C.Esp1396I

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Regulatory protein	polymer	82	9429.1	2	UniProt (Q8GGH0) Pfam (PF01381) In PDB	Enterobacter sp.
2	B	SULFATE ION	non-polymer		96.1	1	Chemie (SO4)
3		water	water		18.0	44	Chemie (HOH)

Sequence modifications

A, B: 1 - 79 (UniProt: Q8GGH0)

PDB	External Database	Details
Gly -2	-	expression tag
Ser -1	-	expression tag
His 0	-	expression tag
Ala 37	Tyr 37	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	18858.2
Non-Polymers*	Number of molecules	1
	Total formula weight	96.1
All*	Total formula weight	18954.2

*Water molecules are not included.