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Zinc metallochemistry in biochemistry
1Center for Biochemical and Biophysical Sciences and Medicine, Harvard Medical School, Boston, MA 02115, USA.
EXS
|January 1, 1995
Summary
Zinc
Area of Science:
- Biochemistry and Molecular Biology
Background:
- Zinc is a chemically stable, non-toxic metal with amphoteric properties.
- These properties allow zinc to form essential zinc-binding motifs in biological systems.
Purpose of the Study:
- To highlight the critical roles of zinc in biological processes.
- To discuss the diverse zinc-binding motifs found in enzymes and DNA-binding proteins.
Main Methods:
- Review of existing literature on zinc's chemical properties and biological functions.
- Analysis of the structural and catalytic roles of zinc in proteins.
Main Results:
- Zinc's stability and flexibility enable it to participate in crucial life processes.
- Identified catalytic, cocatalytic, and structural zinc sites in enzymes.
- Observed zinc fingers, twists, and clusters in DNA-binding proteins.
Conclusions:
- Zinc is indispensable for a wide range of biological functions.
- Zinc-binding motifs are fundamental to enzyme activity and DNA recognition.