Proteins
Curated comments from UniProt
Type | Comment | Proteins |
---|---|---|
PME5_ARATH | developmental stage | Expressed throughout silique development (PubMed:16622707). During anther development, expressed from stage 9 to stage 11 in late tapetum, and mature pollen grains (PubMed:21673079). |
PME5_ARATH | function | Acts in the modification of cell walls via demethylesterification of cell wall pectin. Plays an important role in growth of pollen tubes in female floral tissues, possibly via enhancing the interaction between the pollen tube and female floral tissues by modification of the cell walls (PubMed:15659637). May be regulated by MYB80 during anther development and play a role in tapetum and pollen development (PubMed:21673079). |
PME5_ARATH | pathway | Glycan metabolism; pectin degradation; 2-dehydro-3-deoxy-D-gluconate from pectin: step 1/5. |
PME5_ARATH | similarity | In the C-terminal section; belongs to the pectinesterase family. |
PME5_ARATH | similarity | In the N-terminal section; belongs to the PMEI family. |
PME5_ARATH | subcellular location | Distributed in the whole pollen tube, including the plasma membrane and pollen tube wall (PubMed:15659637). Cleaved in the Golgi apparatus by SBT6.1 (S1P) after the Arg-Arg-Leu-Leu (RRLL) and Arg-Lys-Leu-Met (RKLM) motifs. This processing is required for extracellular targeting (PubMed:19144003). |
PME5_ARATH | tissue specificity | Expressed in pollen grains and pollen tubes. |
Function
Gene Ontology
cellular component | |
---|---|
pollen tube | ECO |
plasma membrane | ECO |
Golgi membrane | ECO |
extracellular region | ECO |
molecular function | |
enzyme inhibitor activity | ECO |
pectinesterase activity | ECO |
biological process | |
pectin catabolic process | ECO |
cell wall modification | ECO |
pollen tube growth | ECO |
Interactions
Interaction Network
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