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Related Experiment Video

Updated: Jun 4, 2026

Nitropeptide Profiling and Identification Illustrated by Angiotensin II

Nitropeptide Profiling and Identification Illustrated by Angiotensin II

Published on: June 16, 2019

Quantification of Angiotensin-Converting Enzyme (ACE) Activity.

Q C Meng¹, K H Berecek

¹Department of Physiology and Biophysics, University of Alabama at Birmingham, Birmingham, AL.

Methods in Molecular Medicine

|February 19, 2011

Summary

Accurate measurement of tissue angiotensin-converting enzyme (ACE) activity is crucial. This enzyme regulates blood pressure and is vital in local tissue functions, necessitating reliable measurement methods.

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Area of Science:

Biochemistry
Physiology
Enzymology

Background:

Angiotensin-converting enzyme (ACE) is a key enzyme in blood pressure regulation.
ACE exists in soluble and membrane-bound forms, with local tissue roles increasingly recognized.
Local renin-angiotensin system (RAS) in organs like the heart and kidney highlights the importance of membrane-bound ACE.

Purpose of the Study:

To emphasize the importance of accurate measurement of tissue-bound ACE activity.
To highlight the role of ACE in local tissue functions beyond plasma activity.
To underscore the need for reliable methods for both soluble and membrane-bound ACE activity assessment.

Main Methods:

The abstract does not specify methods but discusses the physiological action and localization of ACE.
It implies the need for biochemical assays to measure enzyme activity.
Focus is on the importance of measurement rather than specific techniques.

Main Results:

ACE (EC 3.4.15.1) converts angiotensin I to angiotensin II, regulating blood pressure and fluid balance.
Membrane-bound ACE is found in endothelial and epithelial cells, playing roles in local RAS.
Local RAS in the heart and vasculature is implicated in hypertrophy and remodeling.

Conclusions:

Accurate and reliable methods for measuring tissue (membrane-bound) ACE activity are essential.
Understanding soluble ACE activity also remains important.
The localized action of ACE in various organs necessitates specific measurement techniques.