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Gene : CSI1 A. thaliana

DB identifier  ? AT2G22125 Secondary Identifier  ? locus:2827868
Name  ? cellulose synthase-interactive protein 1 Brief Description  binding protein
TAIR Computational Description  binding protein;(source:Araport11)
TAIR Curator Summary  Encodes a protein involved in cell elongation in root and anther filaments. Mutants have greater cell volumes in root tissues and have additive phenotypes with other cell expansion mutants such as those carrying mutations in COB, QUI and POM1 loci. POM2/CSI1 promotes Cellulose Synthase and microtubule co-alignment. The mRNA is cell-to-cell mobile.
TAIR Short Description  binding
TAIR Aliases  CSI1, POM2

10 Gene Rifs

1 Organism

28 Publications

0 Synonyms

Genomics

Genome feature

Region: gene ? Length: 8520  
Location: Chr2:9406059-9414578

Gene models - CSI1 AT2G22125

? Gene models

Transcripts: 1  Exons: 8  Introns: 7 

Overlapping Features

? Genome features that overlap coordinates of this Gene

9 Child Features

1 Cross References

0 Downstream Intergenic Region

0 Located Features

1 Upstream Intergenic Region

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).

1 Proteins

Function

Interactions

Interaction Network

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Expression

eFP Visualization

Data Source: BAR




Co-expression

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Data Source: ATTED-II
Top N
LS: LS is a monotonic transformation (negative logit) of MR index. Larger LS indicates stronger co-expression.

 

Homology

Phytozome Homologs

Data Source: Phytozome


0 Homologues

 

Other

9 Data Sets