Proteins
Curated comments from UniProt
Type | Comment | Proteins |
---|---|---|
CSI1_ARATH | developmental stage | Strongly expressed in the stigma and pollen grains. Present at lower levels in sepals, filaments, and anther wall. Absent from the ovary. |
CSI1_ARATH | function | Regulator of the microtubular cytoskeleton (PubMed:22427339). Microtubule-associated protein essential for the functional association of cellulase synthase (CESA) complexes (CSCs) and cortical microtubules (PubMed:22190487, PubMed:22294619, PubMed:22751327, PubMed:23623553, PubMed:24368796). Promotes dynamics of CSCs in the plasma membrane (PubMed:20616083, PubMed:21150290, PubMed:22190487, PubMed:22294619, PubMed:22751327, PubMed:23623553, PubMed:24368796). Regulates primary cell wall biosynthesis and cellulose microfibrils organization (PubMed:20616083, PubMed:21150290, PubMed:23623553). Required for the regulation of root cell elongation/expansion (PubMed:20616083, PubMed:21150290, PubMed:22294619, PubMed:22427339, PubMed:7743935). Necessary for the formation of ovules, pollen cell wall morphogenesis and pollen tube development (PubMed:22294619). Involved in anther dehiscence, via dehydration-induced microtubule depolymerization and reorganization. May play a role in early gynoecial development (PubMed:22427339). |
CSI1_ARATH | function | Target of the cellulase synthase (CESA) complexes (CSCs) trafficking inhibitor CESTRIN, which reduces cellulose content and alters anisotropic growth of hypocotyls; CESTRIN treatment inhibits the dynamics of CSCs. |
CSI1_ARATH | subcellular location | Undergoes dynamic changes in response to dehydration (PubMed:22427339). Colocalizes with cellulase synthase (CESA) complexes (CSCs) in a dynamic way, both at the plasma membrane and in post-Golgi compartments (PubMed:20616083, PubMed:22190487, PubMed:22294619, PubMed:24368796). Present in distinct punctae at the cell cortex, called microtubule-associated cellulose synthase compartments, that move with constant velocities of 200 to 300 nm/min (PubMed:22294619). Present with cortical microtubule depolymerizing ends (PubMed:22190487, PubMed:22294619). |
CSI1_ARATH | tissue specificity | Expressed in seedlings, roots, stems, leaves, flowers and pollen (PubMed:20616083, PubMed:22427339). Highly expressed in floral tissues (PubMed:22427339). |
Function
Gene Ontology
cellular component | |
---|---|
plasmodesma | ECO |
cellulose synthase complex | ECO |
Golgi apparatus | ECO |
cytoplasmic side of plasma membrane | ECO |
cortical microtubule | ECO |
cytosol | ECO |
plasma membrane | ECO |
microtubule minus-end | ECO |
cytoplasm | ECO |
molecular function | |
microtubule binding | ECO |
biological process | |
anisotropic cell growth | ECO |
pollen wall assembly | ECO |
cellulose biosynthetic process | ECO |
response to calcium ion | ECO |
protein localization to cortical microtubule cytoskeleton | ECO |
regulation of cellulose biosynthetic process | ECO |
response to water deprivation | ECO |
regulation of root morphogenesis | ECO |
anther dehiscence | ECO |
cellulose microfibril organization | ECO |
regulation of cell shape | ECO |
gynoecium development | ECO |
regulation of microtubule cytoskeleton organization | ECO |
plant-type primary cell wall biogenesis | ECO |
cortical microtubule organization | ECO |
pollen tube development | ECO |
Interactions
Interaction Network
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