3'-end processing of the maize 27 kDa zein mRNA
نویسندگان
چکیده
منابع مشابه
Maize 27 kDa γ-Zein Is a Potential Allergen for Early Weaned Pigs
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, S1...
متن کاملGene duplication confers enhanced expression of 27-kDa γ-zein for endosperm modification in quality protein maize.
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...
متن کاملHeterogeneity of zein mRNA and protein in maize.
Zein, the prolamine fraction of maize, is localized in the endosperm in membrane-bound structures called protein bodies, which have polyribosomes on their surfaces. These polysomes or the mRNA fraction isolated from them will direct the synthesis of zein-like proteins in vitro. The in vitro products consist primarily of two molecular weight classes but show considerable charge heterogeneity whe...
متن کاملArchitecture of eukaryotic mRNA 3′-end processing machinery
Newly transcribed eukaryotic precursor messenger RNAs (pre-mRNAs) are processed at their 3' ends by the ~1-megadalton multiprotein cleavage and polyadenylation factor (CPF). CPF cleaves pre-mRNAs, adds a polyadenylate tail, and triggers transcription termination, but it is unclear how its various enzymes are coordinated and assembled. Here, we show that the nuclease, polymerase, and phosphatase...
متن کاملMolecular mechanisms of eukaryotic pre-mRNA 3′ end processing regulation
Messenger RNA (mRNA) 3' end formation is a nuclear process through which all eukaryotic primary transcripts are endonucleolytically cleaved and most of them acquire a poly(A) tail. This process, which consists in the recognition of defined poly(A) signals of the pre-mRNAs by a large cleavage/polyadenylation machinery, plays a critical role in gene expression. Indeed, the poly(A) tail of a matur...
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ژورنال
عنوان ژورنال: The Plant Journal
سال: 1993
ISSN: 0960-7412,1365-313X
DOI: 10.1046/j.1365-313x.1993.04030535.x