7KRP

Structure of SARS-CoV-2 backtracked complex complex bound to nsp13 helicase - BTC (local refinement)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	RNA-directed RNA polymerase	polymer	932	106781.0	1	UniProt (P0DTD1) Pfam (PF06478) Pfam (PF00680) In PDB	Severe acute respiratory syndrome coronavirus 2 (2019-nCoV)	Pol,RdRp,Non-structural protein 12,nsp12
2	B, D	Non-structural protein 8	polymer	199	22034.2	2	UniProt (P0DTD1) Pfam (PF08717) In PDB	Severe acute respiratory syndrome coronavirus 2 (2019-nCoV)	nsp8
3	C	Non-structural protein 7	polymer	88	9748.4	1	UniProt (P0DTD1) Pfam (PF08716) In PDB	Severe acute respiratory syndrome coronavirus 2 (2019-nCoV)	nsp7
4	P	RNA (37-MER)	polymer	40	12667.6	1		Severe acute respiratory syndrome coronavirus 2
5	T	RNA (36-MER)	polymer	55	17573.4	1		Severe acute respiratory syndrome coronavirus 2
6	A	ZINC ION	non-polymer		65.4	2	Chemie (ZN)
7	A	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
8	A	ADENOSINE-5'-DIPHOSPHATE	non-polymer		427.2	1	Chemie (ADP)
9	A, D	CHAPSO	non-polymer		631.9	3	Chemie (1N7)

Sequence modifications

B, D: 1 - 198 (UniProt: P0DTD1)

PDB	External Database	Details
Met 0	-	initiating methionine

C: 1 - 83 (UniProt: P0DTD1)

PDB	External Database	Details
Gly -4	-	expression tag
Pro -3	-	expression tag
Val -2	-	expression tag
Asp -1	-	expression tag
Met 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	190838.8
Non-Polymers*	Number of molecules	7
	Total formula weight	2478.0
All*	Total formula weight	193316.8

*Water molecules are not included.