期刊
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
卷 107, 期 29, 页码 12866-12871出版社
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1007092107
关键词
cell walls; CESA complexes; cell expansion; microtubules; polysaccharides
资金
- Balzan Foundation
- US Department of Energy [DE-FG02-03ER15421, DOE-FG02-03ER20133]
- Energy Biosciences Institute
- Max-Planck Gesellschaft
- U.S. Department of Energy (DOE) [DE-FG02-03ER15421] Funding Source: U.S. Department of Energy (DOE)
Cellulose synthase-interactive protein 1 (CSI1) was identified in a two-hybrid screen for proteins that interact with cellulose synthase (CESA) isoforms involved in primary plant cell wall synthesis. CSI1 encodes a 2,150-amino acid protein that contains 10 predicted Armadillo repeats and a C2 domain. Mutations in CSI1 cause defective cell elongation in hypocotyls and roots and reduce cellulose content. CSI1 is associated with CESA complexes, and csi1 mutants affect the distribution and movement of CESA complexes in the plasma membrane.
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