8H91

Crystal structure of SARS-CoV-2 spike receptor-binding domain in complex with nanobody N19

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Spike protein S1	polymer	194	21772.4	2	UniProt (P0DTC2) Pfam (PF09408) In PDB	Severe acute respiratory syndrome coronavirus 2 (2019-nCoV SARS-CoV-2)
2	C, D	nanobody	polymer	117	12568.9	2		Vicugna pacos

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	68682.6
All*	Total formula weight	68682.6

*Water molecules are not included.