Abstract
Protein kinases and protein phosphatases play key roles in signal transduction. Many factors regulate enzyme activities by changing the phosphorylation level of them. Protein kinase activity was observed in plasma membrane of wheat coleoptiles (Fig. 1). Activity of this kinase is Ca 2+ dependent (Fig. 2). Treating with IAA increased the kinase activity (Fig. 3). The phosphorylation of proteins with molecular weight 132,100,87,72,50 and 35 kD was enhanced (Fig. 4). IAA also enhanced the autophosphorylation of protein kinases with MW 125 and 89 kD (Fig. 5). LaCl 3, as an inhibitor of calcium ion channel, diminished the influences of IAA. It seems possible that Ca 2+ dependent protein kinase functions in calcium regulated signal transduction processes in IAA induced elongation of wheat coleoptiles through their responses to changes in concentration of cytosolic calcium.
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Claims 7
Claim · model-written summary
Protein kinase activity occurred in wheat coleoptile plasma membrane.
- Taxon
- wheat
Triticum aestivume0 - Organ / stage
- coleoptilese0
- Gene
- Protein kinasee0
- Outcome
- Protein kinase activitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Protein kinase activity was observed in plasma membrane of wheat coleoptiles”
Claim · model-written summary
The kinase activity depended on calcium.
Not reportedTaxonDirection
Verbatim
e0“Activity of this kinase is Ca 2+ dependent”
Claim · model-written summary
IAA increased kinase activity.
Not reportedTaxonComparator
Verbatim
e0“Treating with IAA increased the kinase activity”
Claim · model-written summary
IAA enhanced phosphorylation of six protein bands.
Not reportedTaxonTreatmentComparator
Verbatim
e0“The phosphorylation of proteins with molecular weight 132,100,87,72,50 and 35 kD was enhanced”
Claim · model-written summary
IAA enhanced autophosphorylation of two kinase bands.
- Treatment
- IAAe0
- Outcome
- autophosphorylation of protein kinasese0
- Direction
- enhancede0
- Qualifier
- 125 and 89 kDe0
Not reportedTaxonComparator
Verbatim
e0“IAA also enhanced the autophosphorylation of protein kinases with MW 125 and 89 kD”
Claim · model-written summary
LaCl 3 diminished the IAA effects.
Not reportedTaxonComparator
Verbatim
e0“LaCl 3, as an inhibitor of calcium ion channel, diminished the influences of IAA”
Claim · model-written summary
A calcium dependent kinase may participate in IAA induced coleoptile elongation signaling.
- Taxon
- wheatTriticum aestivume0
- Gene
- protein kinasee0
- Outcome
- IAA induced elongatione0
- Qualifier
- calcium regulated signal transduction processese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It seems possible that Ca 2+ dependent protein kinase functions in calcium regulated signal transduction processes in IAA induced elongation of wheat coleoptiles through their responses to changes in concentration of cytosolic calcium”
The same questions in other papers
indole-3-acetic acid · physiology: enzyme activity · Triticum aestivum (wheat)Results agree
1 paper in the same direction as this paper
- positive
indole-3-acetic acid · quality: protein · Triticum aestivum (wheat)Results agree
2 papers in the same direction as this paper
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.