7S8D

Structure of DNA-free SgrAI

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	SgraIR restriction enzyme	polymer	352	39783.9	2	UniProt (Q9F6L0) Pfam (PF07832) In PDB	Streptomyces griseus
2	A, B	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
3		water	water		18.0	561	Chemie (HOH)

Sequence modifications

A, B: 1 - 339 (UniProt: Q9F6L0)

PDB	External Database	Details
Asp 63	Asn 63	conflict
Glu 340	-	expression tag
Asn 341	-	expression tag
Leu 342	-	expression tag
Tyr 343	-	expression tag
Phe 344	-	expression tag
Gln 345	-	expression tag
Ser 346	-	expression tag
His 347	-	expression tag
His 348	-	expression tag
His 349	-	expression tag
His 350	-	expression tag
His 351	-	expression tag
His 352	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	79567.8
Non-Polymers*	Number of molecules	2
	Total formula weight	80.2
All*	Total formula weight	79647.9

*Water molecules are not included.