7K1O

Crystal Structure of NSP15 Endoribonuclease from SARS CoV-2 in the Complex with Uridine-3',5'-Diphosphate

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C (A, B, C)	Uridylate-specific endoribonuclease	polymer	370	41657.2	3	UniProt (P0DTD1) Pfam (PF19219) Pfam (PF19216) Pfam (PF19215)	Severe acute respiratory syndrome coronavirus 2 (2019-nCoV)	NSP15 endoribnuclease
2	D, F, H (A, B, C)	1-(3,5-di-O-phosphono-alpha-L-xylofuranosyl)pyrimidine-2,4(1H,3H)-dione	non-polymer		404.2	3	Chemie (VQV)
3	E, G, I (A, B, C)	1,2-ETHANEDIOL	non-polymer		62.1	3	Chemie (EDO)
4	J, K, L (A, B, C)	water	water		18.0	47	Chemie (HOH)

Sequence modifications

A, B, C: 2 - 347 (UniProt: P0DTD1)

PDB	External Database	Details
Met -22	-	initiating methionine
His -21	-	expression tag
His -20	-	expression tag
His -19	-	expression tag
His -18	-	expression tag
His -17	-	expression tag
His -16	-	expression tag
Ser -15	-	expression tag
Ser -14	-	expression tag
Gly -13	-	expression tag
Val -12	-	expression tag
Asp -11	-	expression tag
Leu -10	-	expression tag
Gly -9	-	expression tag
Thr -8	-	expression tag
Glu -7	-	expression tag
Asn -6	-	expression tag
Leu -5	-	expression tag
Tyr -4	-	expression tag
Phe -3	-	expression tag
Gln -2	-	expression tag
Ser -1	-	expression tag
Asn 0	-	expression tag
Met 1	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	124971.7
Non-Polymers*	Number of molecules	6
	Total formula weight	1398.7
All*	Total formula weight	126370.4

*Water molecules are not included.