RAP-1 is an Arabidopsis MYC-like R protein homologue, that binds to G-box sequence motifs

RAP-1 is an Arabidopsis MYC-like R protein homologue, that binds to G-box sequence motifs An Arabidopsis cDNA clone encoding a DNA-binding protein, RAP-1, was isolated by southwestern screening of an Escherichia coli cDNA expression library. The protein contains a bHLH DNA-binding domain and is homologous to R proteins, regulating anthocyanin biosynthesis. RAP-1 binds to the sequence CACNTG. It is encoded by a single gene, which is expressed to high levels in root and stem and to low levels in leaf and flower. No expression could be detected in siliques. Rap-1 does not correspond to one of the known loci involved in anthocyanin biosynthesis, since it is located at a different map position. In contrast to the maize R protein Lc, RAP-1 did not induce anthocyanin biosynthesis in pea cotyledons. Thus, RAP-1 is a novel member of the bHLH class of DNA-binding proteins. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Plant Molecular Biology Springer Journals

RAP-1 is an Arabidopsis MYC-like R protein homologue, that binds to G-box sequence motifs

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Publisher
Kluwer Academic Publishers
Copyright
Copyright © 1997 by Kluwer Academic Publishers
Subject
Life Sciences; Biochemistry, general; Plant Sciences; Plant Pathology
ISSN
0167-4412
eISSN
1573-5028
D.O.I.
10.1023/A:1005898823105
Publisher site
See Article on Publisher Site

Abstract

An Arabidopsis cDNA clone encoding a DNA-binding protein, RAP-1, was isolated by southwestern screening of an Escherichia coli cDNA expression library. The protein contains a bHLH DNA-binding domain and is homologous to R proteins, regulating anthocyanin biosynthesis. RAP-1 binds to the sequence CACNTG. It is encoded by a single gene, which is expressed to high levels in root and stem and to low levels in leaf and flower. No expression could be detected in siliques. Rap-1 does not correspond to one of the known loci involved in anthocyanin biosynthesis, since it is located at a different map position. In contrast to the maize R protein Lc, RAP-1 did not induce anthocyanin biosynthesis in pea cotyledons. Thus, RAP-1 is a novel member of the bHLH class of DNA-binding proteins.

Journal

Plant Molecular BiologySpringer Journals

Published: Sep 29, 2004

References

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