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Updated: May 17, 2026

Expression, Purification, Crystallization, and Enzyme Assays of Fumarylacetoacetate Hydrolase Domain-Containing Proteins
Published on: June 20, 2019
Structural annotation of human carbonic anhydrases
Mayank Aggarwal1, Christopher D Boone, Bhargav Kondeti
1Department of Biochemistry and Molecular Biology, College of Medicine, University of Florida, Gainesville, FL 32610, USA.
Human carbonic anhydrases (CAs) are enzymes with diverse roles. This review compares the structure and stability of these important metalloenzymes, focusing on their industrial application potential.
Area of Science:
- Biochemistry
- Enzymology
Background:
- Carbonic anhydrases (CAs) are metalloenzymes catalyzing CO2 and HCO3- interconversion.
- Twelve of the 15 human alpha-CA isoforms (hCAs) are catalytic, while three (hCAs VIII, X, XI) are acatalytic CA-related proteins (CA-RPs) with unknown functions.
- Despite structural similarities, hCA isoforms exhibit distinct expression patterns and distributions.
Purpose of the Study:
- To review and highlight the structural similarities among human carbonic anhydrase isoforms.
- To compare the stability profiles of various human carbonic anhydrase isoforms.
- To discuss the potential industrial applications of human carbonic anhydrases, particularly hCA II.
Main Methods:
- Literature review of structural and stability data for human carbonic anhydrase isoforms.
- Comparative analysis of expression and distribution patterns.
- Evaluation of properties relevant to industrial applications.
Main Results:
- Human carbonic anhydrase isoforms share significant structural homology.
- Stability varies across isoforms, influencing their suitability for different applications.
- Human carbonic anhydrase II possesses favorable properties like fast kinetics, solubility, and heat resistance, making it industrially relevant.
Conclusions:
- Understanding structural and stability variations is key to harnessing CA functions.
- hCA II is a promising candidate for various industrial applications due to its advantageous characteristics.
- Further research into acatalytic CA-RPs may uncover novel biological roles.
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