The DELAY OF GERMINATION1 (DOG1) protein is a positive regulator for the
establishment and maintenance of primary seed dormancy in plants. DOG1 is
involved in transducing maternal environmental conditions during seed
development into effects on seed dormancy and in the loss of dormancy through
dry after-ripening or moist chilling. DOG1 belongs to a small family of
proteins that can be classified into five distinct clades (1-5). Of these,
DOG1-like proteins in clades 1-4 have a similar architecture to DOG1, sharing
the same domain. In contrast, the clade 5 proteins are distinct: they harbor
an additional bZIP domain (see <PDOC00036>), that interacts with DNA, and play
a major role in disease resistance and development. The DOG1 domain is formed
by Glutamine rich regions QI and QII and acidic amino acids and is likely to
be a transcriptional activation domain [1,2,3,4,5].
Some proteins known to contain a DOG1 domain are listed below:
Arabidopsis thaliana DOG1, functions in seed dormancy and sugar signalling.
Arabidopsis thaliana PERIANTHIA (PAN), a bZIP protein involved in the
determination of floral organ number.
Arabidopsis thaliana TGA1, a transcriptional activator that binds
specifically to the DNA sequence 5'-TGACG-3'.
Tobacco TGA1a, a transcriptional activator that binds specifically to the
DNA sequence 5'-TGACG-3'.
Wheat HBP-1b protein, a transcriptional activator that binds specifically
to the DNA sequence 5'-TGACG-3'.
The profile we developed covers the entire DOG1 domain.
July 2016 / First entry.
PROSITE method (with tools and information) covered by this documentation:
Chuang C.F. Running M.P. Williams R.W. Meyerowitz E.M.
The PERIANTHIA gene encodes a bZIP protein involved in the determination of floral organ number in Arabidopsis thaliana.
PROSITE is copyrighted by the SIB Swiss Institute of Bioinformatics and
distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives
(CC BY-NC-ND 4.0) License, see prosite_license.html.