Purification and Translation of Zein Messenger RNA from Maize Endosperm Protein Bodies

The messenger RNAs coding for the zein storage protein have been purified from other contaminating RNAs. The average molecular lengths are 1.1-1.2 kilobases, as determined by polyacrylamide gel electrophoresis and by electron microscopy. Products of messenger-dependent protein synthesis in vitro app...

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Veröffentlicht in:Proc. Natl. Acad. Sci. U.S.A.; (United States) 1978-02, Vol.75 (2), p.696-700
Hauptverfasser: Burr, B., Burr, F. A., Rubenstein, I., Simon, M. N.
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container_title Proc. Natl. Acad. Sci. U.S.A.; (United States)
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creator Burr, B.
Burr, F. A.
Rubenstein, I.
Simon, M. N.
description The messenger RNAs coding for the zein storage protein have been purified from other contaminating RNAs. The average molecular lengths are 1.1-1.2 kilobases, as determined by polyacrylamide gel electrophoresis and by electron microscopy. Products of messenger-dependent protein synthesis in vitro appear to be 1100 and 2000 daltons heavier than the native polypeptides. Zein is like secretory proteins in having a precursor with an additional amino-terminal sequence. Although only one mRNA is seen in polyacrylamide gel electrophoresis, the combined size of the polypeptide products formed exceeds the coding capacity for one message of the size determined in this study. This suggests that there are at least two mRNAs of similar sizes for the zein polypeptides rather than one dicistronic message.
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Although only one mRNA is seen in polyacrylamide gel electrophoresis, the combined size of the polypeptide products formed exceeds the coding capacity for one message of the size determined in this study. 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subjects 550200 -- Biochemistry
550201 -- Biochemistry-- Tracer Techniques
550401 -- Genetics-- Tracer Techniques
Amino acids
BASIC BIOLOGICAL SCIENCES
BIOCHEMISTRY
Biological Sciences: Biochemistry
BIOLOGY
BIOMASS
Bromides
CEREALS
CHEMISTRY
Corn
ELECTRON MICROSCOPY
ELECTROPHORESIS
ENERGY SOURCES
Gels
GENETICS
GRAMINEAE
GRASS
LABELLED COMPOUNDS
MAIZE
MESSENGER-RNA
MICROSCOPY
MOLECULAR BIOLOGY
MOLECULAR STRUCTURE
Molecular weight
NUCLEIC ACIDS
ORGANIC COMPOUNDS
PLANTS
Polyribosomes
PROTEINS
PURIFICATION
RENEWABLE ENERGY SOURCES
RNA
RNA 550400 -- Genetics
SYNTHESIS
title Purification and Translation of Zein Messenger RNA from Maize Endosperm Protein Bodies
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