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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
20
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pubmed:dateCreated |
1988-8-8
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pubmed:abstractText |
We show that maize storage protein translocation across microsomal membranes is mediated by signal recognition particles (SRPs) similar to those described in animal systems (Dobberstein, B. (1978) Hoppe-Seyler's Z. Physiol. Chem. 252, 955-962; Walter, P., and Blobel, G. (1980) Proc. Natl. Acad. Sci. U. S. A. 77, 7112-7116). We have prepared a high salt extract from endosperm cell homogenates, from which a ribosome-free fraction was obtained. This fraction is enriched in an SRP-like factor which apparently corresponds to a ribonucleoprotein particle that sediments at about 12 S. The RNA moiety of this 12 S particle is complex, showing a three-band electrophoretic pattern and sedimenting at about 8 S. The fraction restores translocation competence of salt-washed maize microsomes as tested by using a pre-zein message. In contrast to canine SRPs, the maize SRP-like component does not cause a translation arrest of maize storage proteins (zein) in a wheat germ cell-free system.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Micrococcal Nuclease,
http://linkedlifedata.com/resource/pubmed/chemical/RNA,
http://linkedlifedata.com/resource/pubmed/chemical/Ribonucleoproteins,
http://linkedlifedata.com/resource/pubmed/chemical/Signal Recognition Particle,
http://linkedlifedata.com/resource/pubmed/chemical/Zein
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pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0021-9258
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
|
pubmed:volume |
263
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
9646-50
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2454916-Animals,
pubmed-meshheading:2454916-Biological Transport,
pubmed-meshheading:2454916-Cell Membrane,
pubmed-meshheading:2454916-Centrifugation, Density Gradient,
pubmed-meshheading:2454916-Dogs,
pubmed-meshheading:2454916-Electrophoresis, Polyacrylamide Gel,
pubmed-meshheading:2454916-Micrococcal Nuclease,
pubmed-meshheading:2454916-Microsomes,
pubmed-meshheading:2454916-Pancreas,
pubmed-meshheading:2454916-Plants,
pubmed-meshheading:2454916-Protein Biosynthesis,
pubmed-meshheading:2454916-RNA,
pubmed-meshheading:2454916-Ribonucleoproteins,
pubmed-meshheading:2454916-Signal Recognition Particle,
pubmed-meshheading:2454916-Transcription, Genetic,
pubmed-meshheading:2454916-Zea mays,
pubmed-meshheading:2454916-Zein
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pubmed:year |
1988
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pubmed:articleTitle |
Signal recognition-like particles are present in maize.
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pubmed:affiliation |
Departamento de Biologia Molecular i Agrobiologia, Centre d'Investigació i Desenvolupament Consejo Superior de Investigacions Cientificas, Jordi Girona Salgado, Barcelona, Spain.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
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