Identification and cDNA cloning of a new nodule-specific gene, Nms-25 (nodulin-25) of Medicago sativa

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  • G B Kiss, Danmark
  • Éva Vincze
  • Z Végh, Danmark
  • G Tóth, Danmark
  • J Soós, Danmark
A new nodule-specific gene, Nms-25 (nodulin-25), was identified in cDNA clones isolated from a nodule-specific cDNA library of Medicago sativa. The first transcript of this gene appeared 9 days after inoculation of the roots with Rhizobium meliloti. The time of expression and the quantity of the transcripts of the Nms-25 gene was similar to that of leghemoglobin genes suggesting a similar regulation. A protein of 246 amino acids could be deduced from a full-length cDNA clone. The first 24 amino acids at the N-terminal end of this protein formed a signal sequence which might direct membrane transport into the peribacteroid space. Using different predictive methods the signal sequence cleaved protein was tentatively predicted to be a water-soluble enzyme, but not hydrolase.
OriginalsprogEngelsk
TidsskriftPlant Molecular Biology
Vol/bind14
Sider (fra-til)467-475
Antal sider9
ISSN0167-4412
DOI
StatusUdgivet - 1990
Eksternt udgivetJa

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