2RKS

Crystal structure of Staphylococcal nuclease variant PHS L38K at cryogenic temperature

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Thermonuclease	polymer	149	16778.3	1	UniProt (P00644) Pfam (PF00565) In PDB	Staphylococcus aureus	TNase, Micrococcal nuclease, Staphylococcal nuclease
2	A	PHOSPHATE ION	non-polymer		95.0	2	Chemie (PO4)
3		water	water		18.0	86	Chemie (HOH)

Sequence modifications

A: 1 - 149 (UniProt: P00644)

PDB	External Database	Details
Lys 38	Leu 120	engineered mutation
Gly 117	Pro 199	engineered mutation
Leu 124	His 206	engineered mutation
Ala 128	Ser 210	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	16778.3
Non-Polymers*	Number of molecules	2
	Total formula weight	189.9
All*	Total formula weight	16968.2

*Water molecules are not included.