7DAU

The crystal structure of COVID-19 main protease treated by GA

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	COVID-19 MAIN PROTEASE	polymer	306	33825.5	1	UniProt (P0DTC1) Pfam (PF05409) UniProt (by SIFTS) (P0DTD1) In PDB	Severe acute respiratory syndrome coronavirus 2 (2019-nCoV)	main protease
2	A	GOLD ION	non-polymer		197.0	2	Chemie (AU)
3		water	water		18.0	234	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	33825.5
Non-Polymers*	Number of molecules	2
	Total formula weight	393.9
All*	Total formula weight	34219.5

*Water molecules are not included.