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From Proteopedia
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== Function == | == Function == | ||
[[http://www.uniprot.org/uniprot/BP11_BPT4 BP11_BPT4]] Baseplate protein that is part of the baseplate wedge and that connects the short tail fibers to the baseplate (PubMed:15315755). Involved in the tail assembly.<ref>PMID:15315755</ref> <ref>PMID:21129200</ref> [[http://www.uniprot.org/uniprot/BP08_BPT4 BP08_BPT4]] Baseplate protein that is part of the baseplate wedge. Involved in the tail assembly.<ref>PMID:15315755</ref> <ref>PMID:21129200</ref> [[http://www.uniprot.org/uniprot/BP25_BPT4 BP25_BPT4]] Baseplate protein that is part of the outer wedges of the baseplate (PubMed:15315755). Probably plays a role as a connector between the central and peripheral parts of the baseplate. Involved in the tail assembly.[UniProtKB:P51768]<ref>PMID:15315755</ref> <ref>PMID:21129200</ref> [[http://www.uniprot.org/uniprot/BP07_BPT4 BP07_BPT4]] Baseplate protein that is part of the baseplate wedge. Involved in the tail assembly.<ref>PMID:2254933</ref> <ref>PMID:21129200</ref> [[http://www.uniprot.org/uniprot/BP53_BPT4 BP53_BPT4]] Baseplate protein that is part of the baseplate wedge (PubMed:15315755). Involved in the tail assembly.<ref>PMID:15315755</ref> <ref>PMID:21129200</ref> [[http://www.uniprot.org/uniprot/BP06_BPT4 BP06_BPT4]] Baseplate protein that is part of the baseplate wedge (PubMed:15315755). Involved in the tail assembly.<ref>PMID:15315755</ref> <ref>PMID:21129200</ref> [[http://www.uniprot.org/uniprot/BP09_BPT4 BP09_BPT4]] Baseplate protein that connects the long tail fibers to the baseplate and probably triggers the tail contraction after virus attachment to a host cell (PubMed:10545330). Involved in the tail assembly (PubMed:21129200).<ref>PMID:10545330</ref> <ref>PMID:21129200</ref> [[http://www.uniprot.org/uniprot/BP10_BPT4 BP10_BPT4]] Baseplate protein that is part of the baseplate wedge and that connects the short tail fibers to the baseplate (PubMed:16554069). During infection, the baseplate undergoes a conformational change from a dome-shaped to a star-shaped structure. At this point, gp10 rotates and acts as a lever that unfolds the short tail fibers, which then interact with host cell surface receptors. Involved in the tail assembly.<ref>PMID:16554069</ref> <ref>PMID:21129200</ref> | [[http://www.uniprot.org/uniprot/BP11_BPT4 BP11_BPT4]] Baseplate protein that is part of the baseplate wedge and that connects the short tail fibers to the baseplate (PubMed:15315755). Involved in the tail assembly.<ref>PMID:15315755</ref> <ref>PMID:21129200</ref> [[http://www.uniprot.org/uniprot/BP08_BPT4 BP08_BPT4]] Baseplate protein that is part of the baseplate wedge. Involved in the tail assembly.<ref>PMID:15315755</ref> <ref>PMID:21129200</ref> [[http://www.uniprot.org/uniprot/BP25_BPT4 BP25_BPT4]] Baseplate protein that is part of the outer wedges of the baseplate (PubMed:15315755). Probably plays a role as a connector between the central and peripheral parts of the baseplate. Involved in the tail assembly.[UniProtKB:P51768]<ref>PMID:15315755</ref> <ref>PMID:21129200</ref> [[http://www.uniprot.org/uniprot/BP07_BPT4 BP07_BPT4]] Baseplate protein that is part of the baseplate wedge. Involved in the tail assembly.<ref>PMID:2254933</ref> <ref>PMID:21129200</ref> [[http://www.uniprot.org/uniprot/BP53_BPT4 BP53_BPT4]] Baseplate protein that is part of the baseplate wedge (PubMed:15315755). Involved in the tail assembly.<ref>PMID:15315755</ref> <ref>PMID:21129200</ref> [[http://www.uniprot.org/uniprot/BP06_BPT4 BP06_BPT4]] Baseplate protein that is part of the baseplate wedge (PubMed:15315755). Involved in the tail assembly.<ref>PMID:15315755</ref> <ref>PMID:21129200</ref> [[http://www.uniprot.org/uniprot/BP09_BPT4 BP09_BPT4]] Baseplate protein that connects the long tail fibers to the baseplate and probably triggers the tail contraction after virus attachment to a host cell (PubMed:10545330). Involved in the tail assembly (PubMed:21129200).<ref>PMID:10545330</ref> <ref>PMID:21129200</ref> [[http://www.uniprot.org/uniprot/BP10_BPT4 BP10_BPT4]] Baseplate protein that is part of the baseplate wedge and that connects the short tail fibers to the baseplate (PubMed:16554069). During infection, the baseplate undergoes a conformational change from a dome-shaped to a star-shaped structure. At this point, gp10 rotates and acts as a lever that unfolds the short tail fibers, which then interact with host cell surface receptors. Involved in the tail assembly.<ref>PMID:16554069</ref> <ref>PMID:21129200</ref> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Several systems, including contractile tail bacteriophages, the type VI secretion system and R-type pyocins, use a multiprotein tubular apparatus to attach to and penetrate host cell membranes. This macromolecular machine resembles a stretched, coiled spring (or sheath) wound around a rigid tube with a spike-shaped protein at its tip. A baseplate structure, which is arguably the most complex part of this assembly, relays the contraction signal to the sheath. Here we present the atomic structure of the approximately 6-megadalton bacteriophage T4 baseplate in its pre- and post-host attachment states and explain the events that lead to sheath contraction in atomic detail. We establish the identity and function of a minimal set of components that is conserved in all contractile injection systems and show that the triggering mechanism is universally conserved. | ||
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| + | Structure of the T4 baseplate and its function in triggering sheath contraction.,Taylor NM, Prokhorov NS, Guerrero-Ferreira RC, Shneider MM, Browning C, Goldie KN, Stahlberg H, Leiman PG Nature. 2016 May 18;533(7603):346-52. doi: 10.1038/nature17971. PMID:27193680<ref>PMID:27193680</ref> | ||
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| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | <div class="pdbe-citations 5iv7" style="background-color:#fffaf0;"></div> | ||
== References == | == References == | ||
<references/> | <references/> | ||
Revision as of 08:02, 20 June 2016
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Cryo-electron microscopy structure of the star-shaped, hubless post-attachment T4 baseplate
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