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    Publication Date: 2010-10-30
    Description: Ribosomes are self-assembling macromolecular machines that translate DNA into proteins, and an understanding of ribosome biogenesis is central to cellular physiology. Previous studies on the Escherichia coli 30S subunit suggest that ribosome assembly occurs via multiple parallel pathways rather than through a single rate-limiting step, but little mechanistic information is known about this process. Discovery single-particle profiling (DSP), an application of time-resolved electron microscopy, was used to obtain more than 1 million snapshots of assembling 30S subunits, identify and visualize the structures of 14 assembly intermediates, and monitor the population flux of these intermediates over time. DSP results were integrated with mass spectrometry data to construct the first ribosome-assembly mechanism that incorporates binding dependencies, rate constants, and structural characterization of populated intermediates.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2990404/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2990404/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mulder, Anke M -- Yoshioka, Craig -- Beck, Andrea H -- Bunner, Anne E -- Milligan, Ronald A -- Potter, Clinton S -- Carragher, Bridget -- Williamson, James R -- GM-52468/GM/NIGMS NIH HHS/ -- P41 RR017573/RR/NCRR NIH HHS/ -- P41 RR017573-10/RR/NCRR NIH HHS/ -- R01 GM052468/GM/NIGMS NIH HHS/ -- R01 GM052468-16/GM/NIGMS NIH HHS/ -- R01 RR023093/RR/NCRR NIH HHS/ -- R01 RR023093-09/RR/NCRR NIH HHS/ -- R37 GM053757/GM/NIGMS NIH HHS/ -- R37 GM053757-16/GM/NIGMS NIH HHS/ -- R37-GM-53757/GM/NIGMS NIH HHS/ -- RR023093/RR/NCRR NIH HHS/ -- RR175173/RR/NCRR NIH HHS/ -- New York, N.Y. -- Science. 2010 Oct 29;330(6004):673-7. doi: 10.1126/science.1193220.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21030658" target="_blank"〉PubMed〈/a〉
    Keywords: Bacterial Proteins/chemistry/metabolism ; Image Processing, Computer-Assisted ; Kinetics ; Mass Spectrometry ; Microscopy, Electron/methods ; Models, Molecular ; Nucleic Acid Conformation ; Protein Binding ; Protein Conformation ; RNA, Bacterial/chemistry ; RNA, Ribosomal/chemistry ; Ribosomal Proteins/chemistry/*metabolism ; Ribosome Subunits, Small, Bacterial/chemistry/*metabolism/*ultrastructure
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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