SARS-CoV-2 and ACE2 receptor: molecular mechanisms (WP4883)

Homo sapiens

For initial entry of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) into cells, the large viral Spike (S) protein needs to be primed by host proteases. For SARS-CoV-2 that is the serine protease TMPRSS2. After binding to its functional receptor, angiotensin-converting enzyme 2 (ACE2), the virus undergoes endocytosis. After endocytosis of the viral complex, surface ACE2 is further down-regulated, resulting in unopposed angiotensin 2 accumulation. Local activation of the angiotensin pathway system may mediate lung injury responses to viral insults. ACE denotes angiotensin-converting enzyme and ARB angiotensin-receptor blocker.

Authors

Rex D A B , Kristina Hanspers , Penny Nymark , Friederike Ehrhart , Egon Willighagen , Martina Summer-Kutmon , and Eric Weitz

Activity

last edited

Discuss this pathway

Check for ongoing discussions or start your own.

Cited In

Are you planning to include this pathway in your next publication? See How to Cite and add a link here to your paper once it's online.

Organisms

Homo sapiens

Communities

COVID-19

Annotations

Pathway Ontology

angiotensin signaling pathway

Disease Ontology

COVID-19 severe acute respiratory syndrome viral infectious disease

Participants

Label Type Compact URI Comment
Angiotensin 1-9 Metabolite chebi:80128
Angiotensin 2 Metabolite chebi:2719
Angiotensin 1 Metabolite chebi:2718
Angiotensin 1-7 Metabolite chebi:55438
ACE2 surface receptor blocker Metabolite chebi:90710
TMPRSS2 inhibitor Metabolite chebi:35222
ARBs surface receptor blocker Metabolite chebi:90710
REN GeneProduct ncbigene:5972
MAS1 GeneProduct ncbigene:4142
AGT GeneProduct ncbigene:183
AT1R GeneProduct ncbigene:185
TMPRSS2 GeneProduct ensembl:ENSG00000184012
ACE2 GeneProduct ncbigene:59272
Soluble ACE2 GeneProduct ncbigene:59272
ACE Protein ncbigene:1636
Soluble ACE2 Protein ncbigene:59272

References

  1. Angiotensin-converting enzyme 2 (ACE2) as a SARS-CoV-2 receptor: molecular mechanisms and potential therapeutic target. Zhang H, Penninger JM, Li Y, Zhong N, Slutsky AS. Intensive Care Med. 2020 Apr;46(4):586–90. PubMed Europe PMC Scholia
  2. SARS-CoV-2 Cell Entry Depends on ACE2 and TMPRSS2 and Is Blocked by a Clinically Proven Protease Inhibitor. Hoffmann M, Kleine-Weber H, Schroeder S, Krüger N, Herrler T, Erichsen S, et al. Cell. 2020 Apr 16;181(2):271-280.e8. PubMed Europe PMC Scholia
  3. Renin-Angiotensin-Aldosterone System Inhibitors in Patients with Covid-19. Vaduganathan M, Vardeny O, Michel T, McMurray JJV, Pfeffer MA, Solomon SD. N Engl J Med. 2020 Apr 23;382(17):1653–9. PubMed Europe PMC Scholia