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The forms and functions of 11 beta-hydroxysteroid dehydrogenase
1Population Council, New York, NY 10021.
Summary
This review examines the structure-function relationship of rat liver 11 beta-hydroxysteroid dehydrogenase (11-HSD). The enzyme, a glycoprotein, has a unique active site and belongs to the short-chain alcohol dehydrogenase family.
Area of Science:
- Biochemistry
- Enzymology
- Molecular Biology
Background:
- 11 beta-hydroxysteroid dehydrogenase (11-HSD) plays a crucial role in corticosteroid metabolism.
- Understanding the enzyme's structure is key to elucidating its function.
- Rat liver 11-HSD serves as a model for studying this enzyme family.
Purpose of the Study:
- To review the relationship between the structure and function of purified rat liver 11 beta-hydroxysteroid dehydrogenase (11-HSD).
- To discuss the characteristics of the rat liver 11-HSD enzyme, including its active site and classification.
- To explore evidence for the existence of 11-HSD isoforms in other tissues.
Main Methods:
- Literature review focusing on studies of purified rat liver 11-HSD.
- Analysis of structural and functional data of the enzyme.
- Compilation of evidence for 11-HSD isoforms in various tissues.
Main Results:
- Rat liver 11-HSD is a single-domain glycoprotein.
- The enzyme possesses a unique active site structure.
- It is classified within the short-chain alcohol dehydrogenase family.
Conclusions:
- The structure of rat liver 11-HSD is intrinsically linked to its function.
- Further research into 11-HSD isoforms in different tissues is warranted.
- This review provides a foundation for understanding 11-HSD across species and tissues.