Plant Molecular Biology

, Volume 27, Issue 6, pp 1109–1118 | Cite as

Structure and expression of LeMA-1, a tomato protein belonging to the SEC18-PAS1-CDC48-TBP-1 protein family of putative Mg2+-dependent ATPases

  • Anastasia Prombona
  • Martin Tabler
  • Mary Providaki
  • Mina Tsagris
Research Article
Received:
Accepted:

Abstract

cDNA clones of a tomato protein, called Lycopersicum esculentum putative Mg2+-dependent ATPase (LeMA-1), were isolated from a cDNA library. Sequence comparison of the tomato protein with other genes in the database revealed that the protein is highly homologous to a human protein called TBP-1 and a yeast Tat-binding-analogue protein YTA1A. All three proteins belong to the recently discovered protein family of putative Mg2+-dependent ATPases and form within this family a subgroup of proteins involved in controlled protein degradation and possibly also in transcriptional regulation. Expression of the mRNA of LeMA-1 could be monitored in several plant tissues. LeMA-1 is the first member of this subgroup of proteins isolated from plants.

Key words

multicatalytic proteinase 26S protease proteasome seed germination 
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Copyright information

© Kluwer Academic Publishers 1995

Authors and Affiliations

  • Anastasia Prombona
    • 1
  • Martin Tabler
    • 1
  • Mary Providaki
    • 1
  • Mina Tsagris
    • 1
  1. 1.Institute of Molecular Biology and BiotechnologyFoundation for Research and Technology — HellasHeraklionGreece

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