2Y7C

Atomic model of the Ocr-bound methylase complex from the Type I restriction-modification enzyme EcoKI (M2S1). Based on fitting into EM map 1534.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	TYPE-1 RESTRICTION ENZYME ECOKI SPECIFICITY PROTEIN	polymer	464	51468.2	1	UniProt (P05719) Pfam (PF01420) In PDB	ESCHERICHIA COLI	HSDS TYPE I DNA RESTRICTION SPECIFICITY SUBUNIT, S.ECOKI, TYPE I RESTRICTION ENZYME ECOKI SPECIFICITY PROTEIN, S PROTEIN
2	B, C	TYPE I RESTRICTION ENZYME ECOKI M PROTEIN	polymer	529	59378.3	2	UniProt (P08957) Pfam (PF12161) Pfam (PF02384) In PDB	ESCHERICHIA COLI	HSDM TYPE I DNA RESTRICTION METHYLTRANSFERASE SUBUNIT, M.ECOKI
3	D, E	GENE 0.3 PROTEIN	polymer	116	13689.9	2	UniProt (P03775) Pfam (PF08684) In PDB	ENTEROBACTERIA PHAGE T7	OCR ANTIRESTRICTION PROTEIN, DNA MIMIC

Contents of the asymmetric unit

Polymers	Number of chains	5
	Total formula weight	197604.6
All*	Total formula weight	197604.6

*Water molecules are not included.