PROSITE documentation PDOC00355
Small hydrophilic plant seed proteins signature


The following small hydrophilic plant seed proteins are structurally related:

  • Arabidopsis thaliana proteins GEA1 and GEA6.
  • Cotton late embryogenesis abundant (LEA) protein D-19.
  • Carrot EMB-1 protein.
  • Barley LEA proteins B19.1A, B19.1B, B19.3 and B19.4.
  • Maize late embryogenesis abundant protein Emb564.
  • Radish late seed maturation protein p8B6.
  • Rice embryonic abundant protein Emp1.
  • Sunflower 10 Kd late embryogenesis abundant protein (DS10).
  • Wheat Em proteins.

These proteins contains from 83 to 153 amino acid residues and may play a role [1,2] in equipping the seed for survival, maintaining a minimal level of hydration in the dry organism and preventing the denaturation of cytoplasmic components. They may also play a role during imbibition by controlling water uptake.

As a signature pattern, we selected the best conserved region in the sequence of these proteins, it is a glycine-rich nonapeptide located in the N-terminal section.

Last update:

November 1995 / Text revised.


Technical section

PROSITE method (with tools and information) covered by this documentation:

SMALL_HYDR_PLANT_SEED, PS00431; Small hydrophilic plant seed proteins signature  (PATTERN)


1AuthorsDure L. III Crouch M. Harada J. Ho T.-H. D. Mundy J. Quatrano R. Thomas T. Sung Z.R.
SourcePlant Mol. Biol. 12:475-486(1989).

2AuthorsGaubier P. Raynal M. Hull G. Huestis G.M. Grellet F. Arenas C. Pages M. Delseny M.
TitleTwo different Em-like genes are expressed in Arabidopsis thaliana seeds during maturation.
SourceMol. Gen. Genet. 238:409-418(1993).
PubMed ID8492809

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