Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Cellular SARS-CoV-2 binding sites. ACE2, angiotensin converting enzyme 2; BiP, heavy chain binding immunoglobulin protein, also known as glucose regulating protein 78 (GRP78) or heat shock 70 kDa protein 5 (HSPA5) in the endoplasmic reticulum (ER); Sig-1R, sigma-1 receptor; ↑, upregulation; ⇑, activation; ⇓, inhibition.
