6ACK

Trypsin-cleaved and low pH-treated SARS-CoV spike glycoprotein and ACE2 complex, ACE2-bound conformation 3

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	Spike glycoprotein	polymer	1203	133763.4	3	UniProt (P59594) Pfam (PF16451) Pfam (PF09408) Pfam (PF19209) Pfam (PF01601) In PDB	Human SARS coronavirus (SARS-CoV)	S glycoprotein,E2,Peplomer protein
2	D	Angiotensin-converting enzyme 2	polymer	603	69982.6	1	UniProt (Q9BYF1) Pfam (PF01401) In PDB	Homo sapiens (Human)	ACE-related carboxypeptidase,Angiotensin-converting enzyme homolog,ACEH,Metalloprotease MPROT15

Sequence modifications

A, B, C: 1 - 1196 (UniProt: P59594)

PDB	External Database	Details
Ser 1197	-	expression tag
His 1198	-	expression tag
Pro 1199	-	expression tag
Gln 1200	-	expression tag
Phe 1201	-	expression tag
Glu 1202	-	expression tag
Lys 1203	-	expression tag

D: 19 - 615 (UniProt: Q9BYF1)

PDB	External Database	Details
His 616	-	expression tag
His 617	-	expression tag
His 618	-	expression tag
His 619	-	expression tag
His 620	-	expression tag
His 621	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	471272.8
All*	Total formula weight	471272.8

*Water molecules are not included.