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ribosome
ribosome
ribosome A subcellular granule, 10–20 nm in diameter, composed of
RNA and
protein, which is found in large numbers in all types of cells and in some subcellular
organelles. Ribosomes are the site of protein synthesis:
m-RNA attaches to them and there receives
t-RNA molecules bearing
amino acids. In
eukaryotic cells they are synthesized in the
nucleolus, but are found predominantly in the
cytoplasm, singly or in chains (polysomes or polyribosomes, probably linked by the m-RNA), or attached to the
endoplasmic reticulum, which is then termed ‘rough ER’. There are two main types of ribosomes, distinguished by their size: 70S ribosomes occur in
prokaryotes and in the matrix of
chloroplasts and
mitochondria; the slightly larger 80S ribosomes occur in the cytoplasm of eukaryotes. (The ‘S’ refers to the
Svedberg unit.)
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Ribosome inactivation for preservation: concepts and reservations.
Magazine article from: Science Progress; 9/22/2004; ; 700+ words
; ...the action of the ribosome-associated proteins...in inactivating ribosomes for preserving their...Keywords: bacterial ribosome, cellular response...RMF, YfiA, YhbH Ribosomes and stress The ability...factors stabilising ribosomes, such as [Mg...survival. Conversely, ...
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Ribosomes Reveal Their RNA Secrets.(Brief Article)
Magazine article from: Science News; 8/12/2000; ; 700+ words
; Ribosomes, the cell's protein...know what most of the ribosome looks like. A new...subunits of a bacterial ribosome. The map suggests where and how the ribosome chemically stitches...confirm suspicions that ribosomes' RNA molecules...
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Ribosome Insight Could Help Combat Antibiotic Resistance.
Newspaper article from: Genomics & Genetics Weekly; 6/8/2001; 700+ words
; ...insight into how ribosomes manufacture proteins...antibiotic could induce a ribosome to make a "mistake...is reached. The ribosome consists of two...Bacteria and human ribosomes are different and...than they do human ribosomes. Ramakrishnan continued...subunits of the ribosome by ...
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How the ribosome works.
Magazine article from: American Scientist; 9/1/1998; ; 700+ words
; ...the structure of the ribosome at atomic resolution...quite remote, since the ribosome of even one of the simplest...large RNA molecules. Ribosomes of higher organisms...synthesis. Bacterial ribosomes are the targets of many...understanding of how the ribosome works will help towards...
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New ribosomes study results reported from Rutgers University.
Newspaper article from: Virus Weekly; 1/27/2009; 700+ words
; ...report (see also Ribosomes). "Accumulating...docking sites on the ribosome might be used...the wild-type ribosomes when treated with RTA in vitro. Ribosome depurination was...New Brunswick, Ribosomes, Antiviral, Ribosome, Treatment...
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Data on ribosomes published by researchers at Osaka Medical College, Department of Physics.
Newspaper article from: Biotech Week; 3/18/2009; 700+ words
; ...Escherichia coli ribosomes in IF3 and RMF...to prepare 100S ribosome formation on entering...Escherichia coli ribosomes are dimerized (100S ribosome formation) by...Takatsuki, Ribosomes, Escherichia coli, Ribosome. This article...
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Piecing together the ribosome; for some, it's a lifelong puzzle. (scientists Richard Brimacombe and Harry F. Noller construct models of ribosomes) (Cover Story)
Magazine article from: Science News; 11/5/1994; ; 700+ words
; ...not for RNA and ribosomes. Genes must realize...information to the ribosome. Together, the...phenotype." So, as ribosome researchers like...s no wonder that ribosomes are quite complex...needed, during ribosome assembly. Determining...Others studying RNA, ribosomes, and protein ...
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2009 NOBEL PRIZE IN CHEMISTRY RECOGNIZES RIBOSOME RESEARCH AT BROOKHAVEN LAB
News Wire article from: US Fed News Service, Including US State News; 10/11/2009; 700+ words
; ...the ribosome." The ribosome translates the DNA code...core processes: the ribosome's translation of DNA information into life. Ribosomes produce proteins, which...survive. This is why ribosomes are such an important...antibiotics bind to the ribosome. These models are now...
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Research on ribosomes reported by scientists at University of Witten.
Newspaper article from: Biotech Week; 6/24/2009; 700+ words
; ...between EF-G and the ribosome is principally different in translocation and ribosome disassembly," wrote...of Witten (see also Ribosomes). The researchers...Germany, Witten, Ribosomes, Antibiotics, Enzyme...Synthesis, Proteomics, Ribosome, University of Witten...
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Scientists visualize assembly line gears in ribosomes, cell's protein factory.
Newspaper article from: NewsRx Health; 11/1/2009; 700+ words
; ...traps EF-G on the ribosome. Previous efforts to crystallize ribosomes together with EF-G...interact with parts of the ribosome. Keywords: Ribosomes, Biochemistry, Chemicals...Chemistry, Biochemistry, Ribosome, Emory University...
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Ribosome
Book article from: Genetics
Ribosome Ribosomes are the cellular organelles...construction of the ribosome during its assembly. However, bacterial ribosomes can be constructed...outside of the cell. Ribosomes exist either as a single ribosome (that is, one ribosome...
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Ribosomes
Book article from: World of Microbiology and Immunology
...is released and the ribosome subunits are returned to the pool of ribosome units in the cytoplasm . Ribosomes are found in two locations...minute for a single ribosome to make an average...However, several ribosomes can work on a single...
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ribosome
Book article from: A Dictionary of Biology
ribosome A small spherical...protein synthesis . Ribosomes consist of two subunits...prokaryote (70S) ribosome comprises a 50S...eukaryote (80S) ribosome has large 60S and...Usually there are many ribosomes in a cell, either...
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Protein Synthesis
Book article from: World of Microbiology and Immunology
...of the small subunit of a ribosome, (30S in prokaryotes, 40S...complementary to part of the small ribosome subunit. Eukaryotic ribosomes start with the AUG nearest...locating the cap, the small ribosome subunit moves along the mRNA...
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Translation
Book article from: World of Microbiology and Immunology
...protein synthesis . The ribosome is protein bound to...RNA (rRNA). Several ribosomes may attach to a single...the same mRNA. The ribosome binds to a very specific...is the signal for the ribosome to release the polypeptide...the mRNA. Bacterial ribosomes are smaller than eukaryotic...
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