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Article: Recent Proliferation and Translocation of Pollen Group 1 Allergen Genes in the Maize Genome1[W][OA]
- Article from:
- Plant Physiology
- Article date:
- March 1, 2007
- Author:
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Copyright informationCopyright American Society of Plant Physiologists Mar 2007. Provided by ProQuest LLC. (Hide copyright information)
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The dominant allergenic components of grass pollen are known by immunologists as group 1 allergens. These constitute a set of closely related proteins from the β-expansin family and have been shown to have cell wall-loosening activity. Group 1 allergens may facilitate the penetration of pollen tubes through the grass stigma and style. In maize (Zea mays), group 1 allergens are divided into two classes, A and B. We have identified 15 genes encoding group 1 allergens in maize, 11 genes in class A and four genes in class B, as well as seven pseudogenes. The genes in class A can be divided by sequence relatedness into two complexes, whereas the genes in class B constitute a single complex. ...
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