You are not currently logged in.
Access JSTOR through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
The COBRA Family of Putative GPI-Anchored Proteins in Arabidopsis. A New Fellowship in Expansion
François Roudier, Gary Schindelman, Rob DeSalle and Philip N. Benfey
Vol. 130, No. 2 (Oct., 2002), pp. 538-548
Published by: American Society of Plant Biologists (ASPB)
Stable URL: http://www.jstor.org/stable/4280687
Page Count: 11
You can always find the topics here!Topics: Proteins, Plants, Cell walls, Genes, Introns, Family members, Phylogenetics, Genomes, Amino acids, Databases
Were these topics helpful?See somethings inaccurate? Let us know!
Select the topics that are inaccurate.
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
Identification of regulatory molecules that determine the extent and direction of expansion is necessary to understand how cell morphogenesis is controlled in plants. We recently identified COB (COBRA) as a key regulator of the orientation of cell expansion in the root. Analysis of the Arabidopsis genome sequence indicated that COB belongs to a multigene family consisting of 12 members, all predicted to encode glycosylphosphatidylinositol-anchored proteins. All but two of the COBL (COB-like) genes are expressed in most organs examined, suggesting possible redundancy. Sequence comparisons, phylogenetic analyses, and exon-intron positions revealed that the COB family is composed of two main subgroups sharing a common architecture, one subgroup being characterized by an additional N-terminal domain. Identification of expressed sequence tags corresponding to potential orthologs in other plant species suggested that COB-related functions are required in all vascular plants. Together, these results indicate that COB family members are likely to be important new players at the plasma membrane-cell wall interface.
Plant Physiology © 2002 American Society of Plant Biologists (ASPB)