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A ribosome is not just one piece. There are two pieces or subunits. Scientists named them 60-S (large) and 40-S (small). When the cell needs to make protein, mRNA is created in the nucleus. The mRNA is then sent into the cell and the ribosomes.
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www.biology4kids.com/files/cell_ribos.html
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Structure of the Ribosome; ... A ribosome is made of about 40% protein and 60 % nucleic acid. It is composed of four nucleic acid molecules and about ... A website debevoted to the Ribosome. Contains basic information on the structure and function of ribosomes as well as a detailed explanation of Ribosomal protein synthesis.
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www.seorf.ohiou.edu/~tstork/compass.rose/cell.03/ribo/F...
www.seorf.ohiou.edu/~tstork/compass.rose/cell.03/ribo/Functions_of_the_Ribosome.html
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Ribosome - Wikipedia, the free encyclopedia
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Ribosomes ( from 'ribo nucleic acid and "Greek: soma ' ( meaning body)" ) are complexes of RNA and protein that are found in all cells with nuclei. Ribosomes from bacteria, archaea and eukary...
en.wikipedia.org/wiki/Ribosome
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All Ribosome structure studies are performed in collaboration with: 1. The Max-Planck Research Unit for Ribosomal Structure in Hamburg, Germany; 2. Dept. of Structural Biology, Weizmann Institute, Rehovot, Israel ;
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www.molgen.mpg.de/~ag_ribo/ag_franceschi/
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Ribosome Structure and Function, ; Prof. Ada E. Yonath Group ... The Martin S. and Helen Kimmel Professor of Structural Biology; Director, The Helen and Milton A. Kimmelman Center for Biomolecular Structure and Assembly ... Ribosome Group led by Prof Ada Yonath:; Structural Biology Department, Weizmann Institute of...
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www.weizmann.ac.il/sb/faculty_pages/Yonath/home.html
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Contents of this page: Review of nucleic acid structures; tRNA; Amino Acyl tRNA Synthetases; Ribosome Structure ... Large ribosomal subunit: At right is the crystal structure of the large subunit of a bacterial ribosome. See also diagrams p. 1314-1316.
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www.rpi.edu/dept/bcbp/molbiochem/MBWeb/mb2/part1/trna.h...
www.rpi.edu/dept/bcbp/molbiochem/MBWeb/mb2/part1/trna.htm
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they hope to determine the conformational changes of many of the component molecules within the ribosome structure in response to external macromolecules and cofactors engaged in protein synthesis. Such knowledge will also be important in enabling us to understand the regulation of translation of genetic messages.
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www.sciencemag.org/cgi/content/abstract/179/4076/864
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In his Perspective, Moore discusses the atomic-resolution structure that has been obtained by Schuwirth et al. for the Escherichia coli ribosome, the enzyme responsible for protein synthesis in that organism.
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www.sciencemag.org/cgi/content/summary/310/5749/793
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2009 Chemistry Nobel for ribosome structure; (Nobel Foundation) ... The Nobel Prize in Chemistry for 2009 awards studies of one of life's core processes: the ribosome's translation of DNA information into life. Ribosomes produce proteins, which in turn control the chemistry in all living organisms.
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www.mrs.org/s_mrs/sec.asp?CID=2157&DID=92641
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