6EKR

Crystal structure of Type IIP restriction endonuclease Kpn2I

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Type ii site-specific deoxyribonuclease	polymer	312	36375.2	1	UniProt (Q93K38)	Klebsiella pneumoniae
2	B, C, D, E, F (A)	SULFATE ION	non-polymer		96.1	5	Chemie (SO4)
3	G (A)	water	water		18.0	26	Chemie (HOH)

Sequence modifications

A: 1 - 301 (UniProt: Q93K38)

PDB	External Database	Details
Ala 185	Lys 185	engineered mutation
Ala 187	Lys 187	engineered mutation
Ala 302	-	expression tag
Ala 303	-	expression tag
Ala 304	-	expression tag
Leu 305	-	expression tag
Glu 306	-	expression tag
His 307	-	expression tag
His 308	-	expression tag
His 309	-	expression tag
His 310	-	expression tag
His 311	-	expression tag
His 312	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	36375.2
Non-Polymers*	Number of molecules	5
	Total formula weight	480.3
All*	Total formula weight	36855.5

*Water molecules are not included.