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J Biol Chem. 2002 Nov 29;277(48):46402-7. Epub 2002 Sep 15.

The active principle of garlic at atomic resolution.

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  • 1Department of Structural Biology and Crystallography, Institute of Molecular Biotechnology, Beutenbergstrasse 11, D-07745 Jena, Germany.

Abstract

Despite the fact that many cultures around the world value and utilize garlic as a fundamental component of their cuisine as well as of their medicine cabinets, relatively little is known about the plant's protein configuration that is responsible for the specific properties of garlic. Here, we report the three-dimensional structure of the garlic enzyme alliinase at 1.5 A resolution. Alliinase constitutes the major protein component in garlic bulbs, and it is able to cleave carbon-sulfur bonds. The active enzyme is a pyridoxal-5'-phosphate-dependent homodimeric glycoprotein and belongs to the class I family of pyridoxal-5'-phosphate-dependent enzymes. In addition, it contains a novel epidermal growth factor-like domain that makes it unique among all pyridoxal-5'-phosphate-dependent enzymes.

PMID:
12235163
[PubMed - indexed for MEDLINE]
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