3uj3: Difference between revisions
New page: '''Unreleased structure''' The entry 3uj3 is ON HOLD Authors: Ritacco, CJ, Wang, J, Kamtekar, S, Steitz, TA Description: Crystal Structure of the synaptic tetramer of the G-Segment Inv... |
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==Crystal Structure of the synaptic tetramer of the G-Segment Invertase (Gin)== | |||
<StructureSection load='3uj3' size='340' side='right'caption='[[3uj3]], [[Resolution|resolution]] 3.51Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[3uj3]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_virus_Mu Escherichia virus Mu]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=3plo 3plo]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3UJ3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3UJ3 FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.51Å</td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3uj3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3uj3 OCA], [https://pdbe.org/3uj3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3uj3 RCSB], [https://www.ebi.ac.uk/pdbsum/3uj3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3uj3 ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/GIN_BPMU GIN_BPMU] Performs inversion of a viral 3 kp segment (G-segment) that encodes two alternate pairs of tail fiber proteins thereby modifying the host specificity of the virus. Binds as a dimer to the viral gix sites which are 34-bp palindromic sequences that flank the invertible G-segment. Catalyzes site-specific recombination in the presence of the host factor Fis. Gin dimers bound to each of the gix sites and host factor Fis bound to the enhancer come together to form the synaptic complex. Each Gin monomer introduces a nick and becomes covalently attached to the 5'-phosphate of the DNA, resulting in double-stranded staggered breaks at both recombination sites. A 180 degrees rotation of one of the two Gin dimers followed by religation of the DNA leads to the inversion of the G-segment (G+ or G- orientation).<ref>PMID:23275567</ref> <ref>PMID:2974801</ref> <ref>PMID:3159478</ref> <ref>PMID:6232613</ref> | |||
==See Also== | |||
*[[Invertase|Invertase]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Escherichia virus Mu]] | |||
[[Category: Large Structures]] | |||
[[Category: Kamtekar S]] | |||
[[Category: Ritacco CJ]] | |||
[[Category: Steitz TA]] | |||
[[Category: Wang J]] |
Latest revision as of 17:00, 14 March 2024
Crystal Structure of the synaptic tetramer of the G-Segment Invertase (Gin)Crystal Structure of the synaptic tetramer of the G-Segment Invertase (Gin)
Structural highlights
FunctionGIN_BPMU Performs inversion of a viral 3 kp segment (G-segment) that encodes two alternate pairs of tail fiber proteins thereby modifying the host specificity of the virus. Binds as a dimer to the viral gix sites which are 34-bp palindromic sequences that flank the invertible G-segment. Catalyzes site-specific recombination in the presence of the host factor Fis. Gin dimers bound to each of the gix sites and host factor Fis bound to the enhancer come together to form the synaptic complex. Each Gin monomer introduces a nick and becomes covalently attached to the 5'-phosphate of the DNA, resulting in double-stranded staggered breaks at both recombination sites. A 180 degrees rotation of one of the two Gin dimers followed by religation of the DNA leads to the inversion of the G-segment (G+ or G- orientation).[1] [2] [3] [4] See AlsoReferences
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