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Arabinogalactan-proteins and the research challenges for these enigmatic plant cell surface proteoglycans

Journal

FRONTIERS IN PLANT SCIENCE
Volume 3, Issue -, Pages -

Publisher

FRONTIERS MEDIA SA
DOI: 10.3389/fpls.2012.00140

Keywords

arabinogalactan-proteins; glycosylphosphatidylinositol anchor; cell surface signaling; AGP polysaccharide complexes; fasciclin-like AGP; galactosyltransferase

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Funding

  1. ARC Centre of Excellence in Plant Cell Walls
  2. government of Mexico
  3. University of Melbourne
  4. National Science Foundation [MCB 0646109]
  5. Complex Carbohydrate Research Centre
  6. Danish Agency for Science Technology and Innovation [274-09-0082]
  7. Villum Kann Rasmussen Foundation
  8. Ohio Plant Biotechnology Consortium grant
  9. National Science Foundation grant [0918661]
  10. National Research Initiative Competitive Grant from the United States Department of Agriculture, National Institute of Food and Agriculture [2008-35318-04572]
  11. Direct For Biological Sciences [0918661] Funding Source: National Science Foundation

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Arabinogalactan-proteins (AGPs) are complex glycoconjugates that are commonly found at the cell surface and in secretions of plants. Their location and diversity of structures have made them attractive targets as modulators of plant development but definitive proof of their direct role(s) in biological processes remains elusive. Here we overview the current state of knowledge on AGPs, identify key challenges impeding progress in the field and propose approaches using modern bioinformatic, (bio)chemical, cell biological, molecular and genetic techniques that could be applied to redress these gaps in our knowledge.

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