9f0x

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(New page: '''Unreleased structure''' The entry 9f0x is ON HOLD Authors: Description: Category: Unreleased Structures)
Current revision (08:20, 4 June 2025) (edit) (undo)
 
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'''Unreleased structure'''
 
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The entry 9f0x is ON HOLD
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==CryoEM structure of the F plasmid relaxosome in its pre-initiation state, derived from the ds-27_+143-R Locally-refined Map 3.76 A==
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<StructureSection load='9f0x' size='340' side='right'caption='[[9f0x]], [[Resolution|resolution]] 3.78&Aring;' scene=''>
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Authors:
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== Structural highlights ==
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<table><tr><td colspan='2'>[[9f0x]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=9F0X OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=9F0X FirstGlance]. <br>
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Description:
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.78&#8491;</td></tr>
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[[Category: Unreleased Structures]]
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=9f0x FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=9f0x OCA], [https://pdbe.org/9f0x PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=9f0x RCSB], [https://www.ebi.ac.uk/pdbsum/9f0x PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=9f0x ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/IHFA_ECOLI IHFA_ECOLI] One of the 2 subunits of integration host factor (IHF), a specific DNA-binding protein that functions in genetic recombination as well as in transcriptional and translational control.<ref>PMID:7499339</ref> <ref>PMID:17238924</ref> Plays a crucial role in the lysogenic life cycle of bacteriophage lambda, as it is required not only in the recombination reaction, which inserts lambda DNA into the E.coli chromosome, but also for the synthesis of int and cI repressor, two phage proteins necessary for DNA insertion and repression, respectively. The synthesis of int and cI proteins is regulated indirectly by IHF via translational control of the lambda cII protein.<ref>PMID:7499339</ref> <ref>PMID:17238924</ref> Has an essential role in conjugative DNA transfer (CDT), the unidirectional transfer of ssDNA plasmid from a donor to a recipient cell. It is the central mechanism by which antibiotic resistance and virulence factors are propagated in bacterial populations. Part of the relaxosome, which facilitates a site- and strand-specific cut in the origin of transfer by TraI, at the nic site. Relaxosome formation requires binding of IHF and TraY to the oriT region, which then faciliates binding of TraI.<ref>PMID:7499339</ref> <ref>PMID:17238924</ref>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Escherichia coli K-12]]
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[[Category: Large Structures]]
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[[Category: Waksman G]]
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[[Category: Williams SM]]

Current revision

CryoEM structure of the F plasmid relaxosome in its pre-initiation state, derived from the ds-27_+143-R Locally-refined Map 3.76 A

PDB ID 9f0x

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