{"id":11685,"date":"2016-11-30T11:00:43","date_gmt":"2016-11-30T19:00:43","guid":{"rendered":"https:\/\/vermont.salk.edu\/?post_type=disclosure&p=11685"},"modified":"2024-01-30T15:22:40","modified_gmt":"2024-01-30T23:22:40","slug":"multi-institutional-collaboration-uncovers-molecular-machines-assemble","status":"publish","type":"disclosure","link":"https:\/\/www.salk.edu\/es\/news-release\/multi-institutional-collaboration-uncovers-molecular-machines-assemble\/","title":{"rendered":"La colaboraci\u00f3n multi-institucional revela c\u00f3mo se ensamblan las m\u00e1quinas moleculares"},"content":{"rendered":"
\"detailed-characterization-of-ribosome-assembly\"
Ribosomes churn out new proteins within a cell and are, themselves, intricate blends of RNA and protein. A multi-institutional collaboration has now solved the structure of a crucial piece of the ribosome as it assembles. This new study shows that it will be possible to examine other large, dynamic molecules with new high-resolution imaging methods. <\/p>\n

Haga clic aqu\u00ed<\/a> for a high-resolution image <\/p>\n

Cr\u00e9dito: Instituto Salk<\/figcaption><\/figure>\n

LA JOLLA\u2014Ribosomes\u2014macromolecular machines consisting of RNA and proteins that twist, fold and turn\u2014are responsible for making all of the protein within a cell and could hold the key to deciphering a range of diseases. Despite the intricacies of ribosomes, cells are able to churn out 100,000 of them every hour. But because they assemble so speedily, researchers haven\u2019t been able to figure out how they come together.<\/p>\n

A collaboration led by the Salk Institute for Biological Studies and The Scripps Research Institute in La Jolla, California, deployed a cutting-edge imaging method called single-particle cryo-electron microscopy (cryo-EM) and accompanying analysis tools to decipher some of the key steps for how ribosomes are assembled, a first step in understanding their roles in health and disease. The results are published online December 1, 2016, in the journal C\u00e9lula<\/a><\/em>.<\/p>\n

\u201cThese new structures we captured with cryo-EM show that it is possible to image and interpret diverse molecular machines in action,\u201d says the study\u2019s co-senior author Dmitry Lyumkis<\/a>, a Helmsley-Salk Fellow at Salk. \u201cThis is a completely different way of seeing and doing structural biology. This paper is a prime example of the fact that we can do far more intricate analyses than have ever been expected.\u201d<\/p>\n

Understanding molecular structures is important not only for basic research into biology but also for the drug development process to better understand how to make safer and more effective medicines. Researchers traditionally turn to X-ray crystallography, a method that requires its users to extensively purify a molecule and then re-make it in crystal form, but this method has limitations.<\/p>\n

\"dmitry-lyumkis\"<\/a>
Dmitry Lyumkis<\/p>\n

Haga clic aqu\u00ed<\/a> for a high-resolution image<\/p>\n

Cr\u00e9dito: Instituto Salk<\/figcaption><\/figure>\n

In the past few years, advances in cryo-EM have allowed scientists to image single particles with resolution comparable to that of traditional X-ray methods. But in single-particle cryo-EM, proteins (the \u201cparticles\u201d) are flash-frozen and imaged using streams of electrons, meaning the molecules don\u2019t need to be crystallized and can retain much of their native structure. Although cryo-EM has been around for a while, new cameras are making it easier to capture proteins at high resolution before the electron spray zaps them.<\/p>\n

Importantly, computational tools for analyzing cryo-EM data have matured such that researchers can now purify molecules in silico<\/em> by a computer rather than through traditional biochemical approaches. This becomes a much more powerful approach for separating mixtures of species, allowing the researchers to identify and distinguish structurally distinct populations of particles in greater detail than before.<\/p>\n

In the new study, co-senior author James Williamson, professor of molecular biology and chemistry at The Scripps Research Institute, and his team developed a method to stall one major component of ribosomes, the 50s subunit, from coming together so quickly. The scientists were able to chemically pause a mixture of different molecules in various stages of assembly.<\/p>\n

Lyumkis\u2019s group then used high-end cryo-EM to image and analyze these stalled structures, which had not been attempted for such a mix of diverse forms of a particular molecule.<\/p>\n

\u201cOthers have shown that you can capture a couple of different structural states of a molecule,\u201d Lyumkis says. \u201cBut, as far as I know, no one has tried to take this crude mixture of stuff, put it onto a cryo-EM grid, and ask what was in there.\u201d<\/p>\n

\"mini_figure_4\"
A collaboration led by the Salk Institute and The Scripps Research Institute in La Jolla, California, deployed a cutting-edge imaging method called single-particle cryo-electron microscopy (cryo-EM) and accompanying analysis tools to decipher some of the key steps for how ribosomes are assembled, a first step in understanding their roles in health and disease.<\/p>\n

Haga clic aqu\u00ed<\/a> for a high-resolution image <\/p>\n

Cr\u00e9dito: Instituto Salk<\/figcaption><\/figure>\n

The team found that there are at least 15 types of complexes in the mixture, 13 of which are actively assembling 50s subunits. They imaged each of these structures at a resolution high enough to decipher the protein and RNA constituents. They were then able to use computer algorithms to order the complexes according to their assembly pathway.<\/p>\n

The team\u2019s analysis suggests that ribosomes can take several different routes for assembly, which is important to ensure that the process is efficient and can withstand a variety of cell stresses, according to Williamson. \u201cIf you imagine an assembly line where every step has to happen in sequential order, and there is a problem at one of those steps, everything grinds to a halt,\u201d he says. \u201cIf there are parallel pathways, then assembly can proceed through other channels until the problem is resolved.<\/p>\n

It took the scientists over a year to make sense of the structures, employing relatively new image analysis tools. But they have laid the groundwork to study other large, dynamic, and structurally heterogeneous molecular machines, which, Lyumkis says, will lead to new basic science and translational discoveries.<\/p>\n

Other authors on the study are Joseph H. Davis of The Scripps Research Institute<\/a>; and Yong Zi Tan, Bridget Carragher and Clinton Potter of Universidad de Columbia<\/a> and the New York Structural Biology Center<\/a>.<\/p>\n

The research was supported by the Jane Coffin Child\u2019s Foundation<\/a>; the National Institute of Aging<\/a>; The Leona M. and Harry B. Helmsley Charitable Trust<\/a>; the National Institute of General Medical Sciences<\/a>; the Fundaci\u00f3n Simons<\/a>; and the Agency for Science, Technology and Research Singapore<\/a>.<\/p>","protected":false},"featured_media":11691,"template":"","faculty":[320],"disease-research":[],"class_list":["post-11685","disclosure","type-disclosure","status-publish","has-post-thumbnail","hentry","faculty-dmitry-lyumkis"],"acf":[],"yoast_head":"\nMulti-institutional collaboration uncovers how molecular machines assemble - Salk Institute for Biological Studies<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.salk.edu\/es\/news-release\/multi-institutional-collaboration-uncovers-molecular-machines-assemble\/\" \/>\n<meta property=\"og:locale\" content=\"es_MX\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Multi-institutional collaboration uncovers how molecular machines assemble - Salk Institute for Biological Studies\" \/>\n<meta property=\"og:description\" content=\"Ribosomes churn out new proteins within a cell and are, themselves, intricate blends of RNA and protein. A multi-institutional collaboration has now solved the structure of a crucial piece of the ribosome as it assembles. This new study shows that it will be possible to examine other large, dynamic molecules with new high-resolution imaging methods.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.salk.edu\/es\/news-release\/multi-institutional-collaboration-uncovers-molecular-machines-assemble\/\" \/>\n<meta property=\"og:site_name\" content=\"Salk Institute for Biological Studies\" \/>\n<meta property=\"article:modified_time\" content=\"2024-01-30T23:22:40+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.salk.edu\/wp-content\/uploads\/2016\/11\/main_figure_1-featured.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"767\" \/>\n\t<meta property=\"og:image:height\" content=\"767\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.salk.edu\\\/news-release\\\/multi-institutional-collaboration-uncovers-molecular-machines-assemble\\\/\",\"url\":\"https:\\\/\\\/www.salk.edu\\\/news-release\\\/multi-institutional-collaboration-uncovers-molecular-machines-assemble\\\/\",\"name\":\"Multi-institutional collaboration uncovers how molecular machines assemble - Salk Institute for Biological Studies\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.salk.edu\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.salk.edu\\\/news-release\\\/multi-institutional-collaboration-uncovers-molecular-machines-assemble\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.salk.edu\\\/news-release\\\/multi-institutional-collaboration-uncovers-molecular-machines-assemble\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.salk.edu\\\/wp-content\\\/uploads\\\/2016\\\/11\\\/main_figure_1-featured.jpg\",\"datePublished\":\"2016-11-30T19:00:43+00:00\",\"dateModified\":\"2024-01-30T23:22:40+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.salk.edu\\\/news-release\\\/multi-institutional-collaboration-uncovers-molecular-machines-assemble\\\/#breadcrumb\"},\"inLanguage\":\"es-MX\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.salk.edu\\\/news-release\\\/multi-institutional-collaboration-uncovers-molecular-machines-assemble\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"es-MX\",\"@id\":\"https:\\\/\\\/www.salk.edu\\\/news-release\\\/multi-institutional-collaboration-uncovers-molecular-machines-assemble\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.salk.edu\\\/wp-content\\\/uploads\\\/2016\\\/11\\\/main_figure_1-featured.jpg\",\"contentUrl\":\"https:\\\/\\\/www.salk.edu\\\/wp-content\\\/uploads\\\/2016\\\/11\\\/main_figure_1-featured.jpg\",\"width\":767,\"height\":767},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.salk.edu\\\/news-release\\\/multi-institutional-collaboration-uncovers-molecular-machines-assemble\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.salk.edu\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Multi-institutional collaboration uncovers how molecular machines assemble\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.salk.edu\\\/#website\",\"url\":\"https:\\\/\\\/www.salk.edu\\\/\",\"name\":\"Salk Institute for Biological Studies\",\"description\":\"The Power of Science\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.salk.edu\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.salk.edu\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"es-MX\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.salk.edu\\\/#organization\",\"name\":\"Salk Institute for Biological Studies\",\"url\":\"https:\\\/\\\/www.salk.edu\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"es-MX\",\"@id\":\"https:\\\/\\\/www.salk.edu\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"http:\\\/\\\/www.salk.edu\\\/wp-content\\\/uploads\\\/2023\\\/03\\\/salk_logo_696.jpg\",\"contentUrl\":\"http:\\\/\\\/www.salk.edu\\\/wp-content\\\/uploads\\\/2023\\\/03\\\/salk_logo_696.jpg\",\"width\":696,\"height\":696,\"caption\":\"Salk Institute for Biological Studies\"},\"image\":{\"@id\":\"https:\\\/\\\/www.salk.edu\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Multi-institutional collaboration uncovers how molecular machines assemble - Salk Institute for Biological Studies","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.salk.edu\/es\/news-release\/multi-institutional-collaboration-uncovers-molecular-machines-assemble\/","og_locale":"es_MX","og_type":"article","og_title":"Multi-institutional collaboration uncovers how molecular machines assemble - Salk Institute for Biological Studies","og_description":"Ribosomes churn out new proteins within a cell and are, themselves, intricate blends of RNA and protein. A multi-institutional collaboration has now solved the structure of a crucial piece of the ribosome as it assembles. This new study shows that it will be possible to examine other large, dynamic molecules with new high-resolution imaging methods.","og_url":"https:\/\/www.salk.edu\/es\/news-release\/multi-institutional-collaboration-uncovers-molecular-machines-assemble\/","og_site_name":"Salk Institute for Biological Studies","article_modified_time":"2024-01-30T23:22:40+00:00","og_image":[{"width":767,"height":767,"url":"https:\/\/www.salk.edu\/wp-content\/uploads\/2016\/11\/main_figure_1-featured.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.salk.edu\/news-release\/multi-institutional-collaboration-uncovers-molecular-machines-assemble\/","url":"https:\/\/www.salk.edu\/news-release\/multi-institutional-collaboration-uncovers-molecular-machines-assemble\/","name":"Multi-institutional collaboration uncovers how molecular machines assemble - Salk Institute for Biological Studies","isPartOf":{"@id":"https:\/\/www.salk.edu\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.salk.edu\/news-release\/multi-institutional-collaboration-uncovers-molecular-machines-assemble\/#primaryimage"},"image":{"@id":"https:\/\/www.salk.edu\/news-release\/multi-institutional-collaboration-uncovers-molecular-machines-assemble\/#primaryimage"},"thumbnailUrl":"https:\/\/www.salk.edu\/wp-content\/uploads\/2016\/11\/main_figure_1-featured.jpg","datePublished":"2016-11-30T19:00:43+00:00","dateModified":"2024-01-30T23:22:40+00:00","breadcrumb":{"@id":"https:\/\/www.salk.edu\/news-release\/multi-institutional-collaboration-uncovers-molecular-machines-assemble\/#breadcrumb"},"inLanguage":"es-MX","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.salk.edu\/news-release\/multi-institutional-collaboration-uncovers-molecular-machines-assemble\/"]}]},{"@type":"ImageObject","inLanguage":"es-MX","@id":"https:\/\/www.salk.edu\/news-release\/multi-institutional-collaboration-uncovers-molecular-machines-assemble\/#primaryimage","url":"https:\/\/www.salk.edu\/wp-content\/uploads\/2016\/11\/main_figure_1-featured.jpg","contentUrl":"https:\/\/www.salk.edu\/wp-content\/uploads\/2016\/11\/main_figure_1-featured.jpg","width":767,"height":767},{"@type":"BreadcrumbList","@id":"https:\/\/www.salk.edu\/news-release\/multi-institutional-collaboration-uncovers-molecular-machines-assemble\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.salk.edu\/"},{"@type":"ListItem","position":2,"name":"Multi-institutional collaboration uncovers how molecular machines assemble"}]},{"@type":"WebSite","@id":"https:\/\/www.salk.edu\/#website","url":"https:\/\/www.salk.edu\/","name":"Instituto Salk de Estudios Biol\u00f3gicos","description":"The Power of Science","publisher":{"@id":"https:\/\/www.salk.edu\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.salk.edu\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"es-MX"},{"@type":"Organization","@id":"https:\/\/www.salk.edu\/#organization","name":"Instituto Salk de Estudios Biol\u00f3gicos","url":"https:\/\/www.salk.edu\/","logo":{"@type":"ImageObject","inLanguage":"es-MX","@id":"https:\/\/www.salk.edu\/#\/schema\/logo\/image\/","url":"http:\/\/www.salk.edu\/wp-content\/uploads\/2023\/03\/salk_logo_696.jpg","contentUrl":"http:\/\/www.salk.edu\/wp-content\/uploads\/2023\/03\/salk_logo_696.jpg","width":696,"height":696,"caption":"Salk Institute for Biological Studies"},"image":{"@id":"https:\/\/www.salk.edu\/#\/schema\/logo\/image\/"}}]}},"ACF":{"hero":"https:\/\/www.salk.edu\/wp-content\/uploads\/2016\/11\/main_figure_1-1920.jpg","line_1":"Multi-institutional collaboration uncovers how molecular machines assemble","line_2":"New imaging method takes on molecular mixtures","gallery":false,"paper_url":"http:\/\/www.cell.com\/cell\/fulltext\/S0092-8674(16)31592-6","journal_title":"Cell","paper_author_list":"Joseph H. Davis, Yong Zi Tan, Bridget Carragher, Clinton S. Potter, Dmitry Lyumkis, James R. Williamson","paper_title":"Modular Assembly of the Bacterial Large Ribosomal Subunit","subhead":"New imaging method takes on molecular mixtures","home_photo":"","listing_photo":"","legacy_boilerplate":[],"hide_boilerplate":[],"disable_date":false,"listing_excerpt":"<p>LA JOLLA\u2014Ribosomes\u2014macromolecular machines consisting of RNA and proteins that twist, fold and turn\u2014are responsible for making all of the protein within a cell and could hold the key to deciphering a range of diseases. Despite the intricacies of ribosomes, cells are able to churn out 100,000 of them every hour. But because they assemble so speedily, researchers haven\u2019t been able to figure out how they come together.<\/p>\n","descriptive_blurb":"","has_journal_cover":false,"poster_quote":"","doi":"","og_image_override":false},"_links":{"self":[{"href":"https:\/\/www.salk.edu\/es\/wp-json\/wp\/v2\/disclosure\/11685","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.salk.edu\/es\/wp-json\/wp\/v2\/disclosure"}],"about":[{"href":"https:\/\/www.salk.edu\/es\/wp-json\/wp\/v2\/types\/disclosure"}],"version-history":[{"count":2,"href":"https:\/\/www.salk.edu\/es\/wp-json\/wp\/v2\/disclosure\/11685\/revisions"}],"predecessor-version":[{"id":46984,"href":"https:\/\/www.salk.edu\/es\/wp-json\/wp\/v2\/disclosure\/11685\/revisions\/46984"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.salk.edu\/es\/wp-json\/wp\/v2\/media\/11691"}],"wp:attachment":[{"href":"https:\/\/www.salk.edu\/es\/wp-json\/wp\/v2\/media?parent=11685"}],"wp:term":[{"taxonomy":"faculty","embeddable":true,"href":"https:\/\/www.salk.edu\/es\/wp-json\/wp\/v2\/faculty?post=11685"},{"taxonomy":"disease-research","embeddable":true,"href":"https:\/\/www.salk.edu\/es\/wp-json\/wp\/v2\/disease-research?post=11685"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}