Gene and Protein Information
Species	TM	AA	Chromosomal Location	Gene Symbol	Gene Name	Reference
SARS-CoV-2	3	222	Orf5	M	Membrane glycoprotein
SARS-CoV	3	221	Orf5	M	Membrane glycoprotein

Previous and Unofficial Names

membrane protein

Database Links
Entrez Gene
RefSeq Protein
UniProtKB	P0DTC5 (SARS-CoV-2), P59596 (SARS-CoV)

General Comments
The membrane glycoprotein (M) is usually regarded as the most abundant protein in the coronavirus envelope. The SARS-CoV-2 M protein is 222 aa and by similarity with other coronavirus M proteins is predicted to act as a scaffold for the co-assembly of the complex of structural and accessory proteins that form the viral envelope [1].