Table 2 Hydrolysis of ACE2-substrate peptides by B38-CAP.

From: B38-CAP is a bacteria-derived ACE2-like enzyme that suppresses hypertension and cardiac dysfunction

Substrate

ACE2*

B38-CAP

Sequence

Angiotensin I

+

+

DRVYIHPFH↓L

Angiotensin 1–9

+

DRVYIHPF↓H

Angiotensin II

+

+

DRVYIHP↓F

Angiotensin 1–7

DRVYIHP

Apelin-13

+

+

QRPRLSHKGPMP↓F

Apelin-36

+

+

…QRPRLSHKGPMP↓F

des-Arg9-bradykinin

+

+

RPPGFSP↓F

Lys-des-Arg9-bradykinin

+

+

KRPPGFSP↓F

β-Casomorphin

+

+

YPFVEP↓I

Dynorphin A 1–13

+

+

YGGFLRRIRPKL↓K

Ghrelin

+

+

…ESKKPPAKLQP↓R

Neurotensin 1–8

+

+

pE-LYENKP↓R

  1. Summary of cleavability of peptides by B38-CAP. “+” indicates that it is cleaved with ACE2 or B38-CAP, whereas “−” means it is not cleaved. HPLC analyses for the metabolites of each peptide after B38-CAP treatment are shown in Supplementary Fig. 4a. *Cleavability of the peptides by ACE2 is from ref. 6.