7C8D

Cryo-EM structure of cat ACE2 and SARS-CoV-2 RBD

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Angiotensin-converting enzyme 2	polymer	732	85133.0	1	UniProt (Q56H28) Pfam (PF01401) Pfam (PF16959) In PDB	Felis catus (Cat)	ACE-related carboxypeptidase
2	B	Spike protein S1	polymer	195	21873.5	1	UniProt (P0DTC2) Pfam (PF09408) In PDB	Severe acute respiratory syndrome coronavirus 2 (2019-nCoV)	S glycoprotein,E2,Peplomer protein
3	A	ZINC ION	non-polymer		65.4	1	Chemie (ZN)

Sequence modifications

A: 18 - 740 (UniProt: Q56H28)

PDB	External Database	Details
Met 17	-	initiating methionine
His 741	-	expression tag
His 742	-	expression tag
His 743	-	expression tag
His 744	-	expression tag
His 745	-	expression tag
His 746	-	expression tag
His 747	-	expression tag
His 748	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	107006.4
Non-Polymers*	Number of molecules	1
	Total formula weight	65.4
All*	Total formula weight	107071.9

*Water molecules are not included.