Claim · model-written summary
Parallel changes in Bt2 and Sh2 protein content explained maize grain enzyme activity variation.
- Organ / stage
- graine0
- Gene
- Bt2 or Sh2 subunitse0
- Outcome
- variation of activitye0
- Qualifier
- parallel changes in the content of both subunitse0
Zea maysNot reportedMaterialCompoundInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Analysis of the expression of ADP-glucose synthase at the protein levels, using antibodies directed against the Bt2 or Sh2 subunits, established that the variation of activity in the grain was explained by parallel changes in the content of both subunits.”
t0“Zea mays L.”
Title
J. L. Prioul; E. Jeannette; A. Reyss; et al. PLANT PHYSIOLOGY 1994. doi:10.1104/pp.104.1.179
Other claims from this paper (10)
- Association Maize grain enzyme activity and starch accumulation rate coincided for two years from pollination to maturity outdoors.
- Association The adjacent maize leaf showed no corresponding correlation between enzyme activity and starch accumulation.
- Observation Maize leaves showed large year-to-year differences in starch accumulation pattern.
- Mechanism Bt2 and Sh2 mRNA changes preceded similar peptide changes in maize grain, suggesting transcriptional control.
- Observation Protein-content control of maize leaf enzyme activity was less obvious than in grain.
- Observation Changes in maize leaf enzyme specific activity were suggested in the first 20 days after pollination.
- Observation A maize leaf clone L2 homologous to Bt2 was isolated and represented one-third of the mature peptide.
- Observation Bt2 and L2 had 97% coding-region homology.
- Observation Bt2 and L2 had poor homology at the 3′ noncoding border.
- Mechanism Bt2 and L2 arise from distinct maize genes with tissue-specific expression, explaining leaf–grain peptide and mRNA size differences.