7MPB

SARS Coronavirus-2 Main Protease 3CL-pro binding Ascorbate

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	3C-like proteinase	polymer	314	34808.6	2	UniProt (P0DTD1) Pfam (PF05409) In PDB	Severe acute respiratory syndrome coronavirus 2 (2019-nCoV SARS-CoV-2)	3CL-PRO,3CLp,Main protease,Mpro,Non-structural protein 5,nsp5,SARS coronavirus main proteinase
2	A, B	ASCORBIC ACID	non-polymer		176.1	2	Chemie (ASC)
3	A, B	TRIFLUOROETHANOL	non-polymer		100.0	2	Chemie (ETF)
4		water	water		18.0	198	Chemie (HOH)

Sequence modifications

A, B: 1 - 306 (UniProt: P0DTD1)

PDB	External Database	Details
Gly 307	-	expression tag
Pro 308	-	expression tag
His 309	-	expression tag
His 310	-	expression tag
His 311	-	expression tag
His 312	-	expression tag
His 313	-	expression tag
His 314	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	69617.2
Non-Polymers*	Number of molecules	4
	Total formula weight	552.3
All*	Total formula weight	70169.5

*Water molecules are not included.