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Gene Review

SDH2-1  -  succinate dehydrogenase [ubiquinone] iron...

Arabidopsis thaliana

Synonyms: succinate dehydrogenase 2-1
 
 
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High impact information on SDH2-1

  • Surprisingly, transcription of aconitase and the Fe-S subunit of succinate dehydrogenase (SDH2-1) are increased in mutant plants; however, the activity of these proteins is reduced, indicating a role for frataxin in Fe-S cluster assembly or insertion of Fe-S clusters into proteins [1].
  • Progressive deletions of the promoters identified regions important for SDH2-1 expression in anthers and/or pollen and for SDH2-2 expression in anthers and/or pollen and root tips [2].
  • Two genes (SDH2-1 and SDH2-2) that likely arose via a relatively recent duplication event are expressed in all organs from adult plants, whereas transcripts from the third gene (SDH2-3) were not detected [2].
  • As flowers develop, SDH2-1 and SDH2-2 transcripts accumulate in anthers, particularly in the tapetum, pollen mother cells, and microspores, in agreement with an essential role of mitochondria during anther development [2].
 

Other interactions of SDH2-1

  • SDH2-1 and SDH2-2 probably arose via a recent duplication event and we reported that both are expressed in all organs from adult plants [3].
  • Three nuclear genes, SDH2-1, SDH2-2 and SDH2-3, encode the essential iron-sulfur subunit of mitochondrial complex II in Arabidopsis thaliana [3].
 

Analytical, diagnostic and therapeutic context of SDH2-1

References

  1. Deficiency of Arabidopsis thaliana frataxin alters activity of mitochondrial Fe-S proteins and induces oxidative stress. Busi, M.V., Maliandi, M.V., Valdez, H., Clemente, M., Zabaleta, E.J., Araya, A., Gomez-Casati, D.F. Plant J. (2006) [Pubmed]
  2. Nuclear SDH2-1 and SDH2-2 genes, encoding the iron-sulfur subunit of mitochondrial complex II in Arabidopsis, have distinct cell-specific expression patterns and promoter activities. Elorza, A., León, G., Gómez, I., Mouras, A., Holuigue, L., Araya, A., Jordana, X. Plant Physiol. (2004) [Pubmed]
  3. A nuclear gene for the iron-sulfur subunit of mitochondrial complex II is specifically expressed during Arabidopsis seed development and germination. Elorza, A., Roschzttardtz, H., Gómez, I., Mouras, A., Holuigue, L., Araya, A., Jordana, X. Plant Cell Physiol. (2006) [Pubmed]
 
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