Proteins
Curated comments from UniProt
Type | Comment | Proteins |
---|---|---|
PLA2B_ARATH | developmental stage | Expressed in the actively growing young stages of Arabidopsis seedlings. When plants grew, however, expression was evident only in cotyledons, primary leaves, and hypocotyls. The activity decreased in the secondary leaves, being detectable only in vascular tissues. In the roots as well, expression was localized mostly in vascular tissues. Expression becomes highly active when floral shoots bolted, especially in the young or actively growing tissues of inflorescence stems. Continuously expressed during pollen development. |
PLA2B_ARATH | function | PA2 catalyzes the calcium-dependent hydrolysis of the 2-acyl groups in 3-sn-phosphoglycerides. Releases lysophospholipids (LPLs) and free fatty acids (FFAs) from membrane phospholipids in response to hormones and other external stimuli. Regulates the process of cell elongation and plays important roles in shoot gravitropism by mediating auxin-induced cell elongation. Involved in stomatal opening in response to light. Plays a role in pollen development and germination and tube growth. |
PLA2B_ARATH | similarity | Belongs to the phospholipase A2 family. |
PLA2B_ARATH | tissue specificity | Ubiquitous but expressed at a low level. Detected in vascular tissues and in the guard cells. Predominantly detected in pollen. |
Function
Gene Ontology
cellular component | |
---|---|
endoplasmic reticulum | ECO |
extracellular region | ECO |
molecular function | |
lipid binding | ECO |
phospholipase A2 activity | ECO |
calcium ion binding | ECO |
biological process | |
positive regulation of cell growth | ECO |
lipid catabolic process | ECO |
pollen development | ECO |
response to auxin | ECO |
pollen germination | ECO |
gravitropism | ECO |
arachidonate secretion | ECO |
phospholipid metabolic process | ECO |
pollen tube growth | ECO |
Interactions
Interaction Network
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