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CotA of Bacillus subtilis Is a Copper-Dependent Laccase by Marie-Françoise Hullo; Ivan Moszer; Antoine Danchin; Isabelle Martin-Verstraete is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

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## ABSTRACT The spore coat protein CotA of __Bacillus subtilis__ displays similarities with multicopper oxidases, including manganese oxidases and laccases. __B. subtilis__ is able to oxidize manganese, but neither CotA nor other sporulation proteins are involved. We demonstrate that CotA is a laccase. Syringaldazine, a specific substrate of laccases, reacted with wild-type spores but not with Δ __cotA__ spores. CotA may participate in the biosynthesis of the brown spore pigment, which appears to be a melanin-like product and to protect against UV light.

Who reads CotA of Bacillus subtilis Is a Copper-Dependent Laccase?

Author

Marie-Françoise Hullo; Ivan Moszer; Antoine Danchin; Isabelle Martin-Verstraete

Publisher

American Society for Microbiology

Published

2001

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)