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Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Sci+Rep 2021 ; 11 (1): 9803 Nephropedia Template TP
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Angiotensin converting enzyme 2 is a novel target of the gamma-secretase complex #MMPMID33963249
Bartolome A; Liang J; Wang P; Ho DD; Pajvani UB
Sci Rep 2021[May]; 11 (1): 9803 PMID33963249show ga
Angiotensin converting enzyme 2 (ACE2) is a key regulator of the renin-angiotensin system, but also the functional receptor of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Based on structural similarity with other gamma-secretase (gammaS) targets, we hypothesized that ACE2 may be affected by gammaS proteolytic activity. We found that after ectodomain shedding, ACE2 is targeted for intramembrane proteolysis by gammaS, releasing a soluble ACE2 C-terminal fragment. Consistently, chemical or genetic inhibition of gammaS results in the accumulation of a membrane-bound fragment of ectodomain-deficient ACE2. Although chemical inhibition of gammaS does not alter SARS-CoV-2 cell entry, these data point to a novel pathway for cellular ACE2 trafficking.
|Amyloid Precursor Protein Secretases/genetics/*metabolism[MESH]