Maize 27 kDa γ-Zein Is a Potential Allergen for Early Weaned Pigs
نویسندگان
چکیده
HARI B. KRISHNAN,* MONTY S. KERLEY, GARY L. ALLEE, SUNGCHAN JANG, WON-SEOK KIM, AND CHUNJIANG J. FU U.S. Department of Agriculture-Agricultural Research Service, Plant Genetics Research Unit, 205 Curtis Hall, University of Missouri, Columbia, Missouri 65211, Division of Plant Science, 1-41 Agriculture Building, University of Missouri, Columbia, Missouri 65211, and Division of Animal Science, S108 Animal Sciences Center, University of Missouri, Columbia, Missouri 65211
منابع مشابه
γ-Zeins are essential for endosperm modification in quality protein maize
Zeins are essential for endosperm modification in quality protein maize" Essential amino acids like lysine and tryptophan are deficient in corn meal because of the abundance of zein storage proteins that lack these amino acids. A natural mutant, opaque 2 (o2) causes reduction of zeins, an increase of nonzein proteins, and as a consequence, a doubling of lysine levels. However, o2's soft inferio...
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The maize opaque2 (o2) mutant has a high nutritional value but it develops a chalky endosperm that limits its practical use. Genetic selection for o2 modifiers can convert the normally chalky endosperm of the mutant into a hard, vitreous phenotype, yielding what is known as quality protein maize (QPM). Previous studies have shown that enhanced expression of 27-kDa γ-zein in QPM is essential for...
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Maize transcription factors (TFs) opaque2 (O2) and the O2 heterodimerizing proteins (OHP1 and OHP2) originated from an ancient segmental duplication. The 22-kDa (z1C) and 19-kDa (z1A, z1B, and z1D) α-zeins are the most abundant storage proteins in maize endosperm. O2 is known to regulate α-zein gene expression, but its target motifs in the 19-kDa α-zein gene promoters have not been identified. ...
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Quality Protein Maize (QPM) is a hard kernel variant of the high-lysine mutant, opaque2. Using γ-irradiation, we created opaque QPM variants to identify opaque-2 modifier genes and to investigate deletion mutagenesis combined with Illumina sequencing as a maize functional genomics tool. A K0326Y-QPM deletion mutant (line 107) was null for the 27and 50-kD γ-zeins and abolished vitreous endosperm...
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Seeds have evolved to accommodate complicated processes like senescence, dormancy, and germination. Central to these is the storage of carbohydrates and proteins derived from sugars and amino acids synthesized during photosynthesis. In the grasses, the bulk of amino acids is stored in the prolamin superfamily that specifically accumulates in seed endosperm during senescence. Their promoters con...
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