C R Acad Sci III. 1996 Feb;319(2):99-106.

Biotin synthesis in higher plants: isolation of a cDNA encoding Arabidopsis thaliana bioB-gene product equivalent by functional complementation of a biotin auxotroph mutant bioB105 of Escherichia coli K12.

Source

Unité mixte CNRS/Rhône-Poulenc, Lyon, France.

Abstract

Biotin synthase is involved in the conversion of dethiobiotin to biotin in bacteria, yeast and higher plants. We isolated a complete cDNA (1.3 kb) encoding A. thaliana bioB-gene product by functional complementation of the bioB105 biotin auxotroph mutant of Escherichia coli K12 using an A. thaliana cDNA library. The open reading frame encodes a predicted protein of 378 amino acids and molecular mass of 41.634 Da. The bioB-gene product from A. thaliana shows specific regions of homology with the bioB-gene products of E. coli, Serratia marcescens, Bacillus sphaericus, and Saccharomyces cerevisiae. The predicted amino acid sequence of the plant protein contains the consensus region GXCXEDCXYCXQ involved in the [2Fe-2S] cluster binding. Furthermore, it does not present a transit peptide in its N-terminal region suggesting that the A. thaliana bioB-gene product reported in this paper is located in the cytosolic compartment.

PMID:: 8680961; [PubMed - indexed for MEDLINE]

Publication Types, MeSH Terms, Substances, Secondary Source ID

Publication Types

Research Support, Non-U.S. Gov't

MeSH Terms

Substances

Secondary Source ID

GENBANK/L34413

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Molecular Biology Databases

BIOTIN - HSDB

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Cited by 5 PubMed Central articles

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Biotin synthesis in higher plants: isolation of a cDNA encoding Arabidopsis thal...
Biotin synthesis in higher plants: isolation of a cDNA encoding Arabidopsis thaliana bioB-gene product equivalent by functional complementation of a biotin auxotroph mutant bioB105 of Escherichia coli K12.
C R Acad Sci III. 1996 Feb ;319(2):99-106.

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