5o9j: Difference between revisions
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==Crystal structure of transcription factor IIB Mja mini-intein== | ==Crystal structure of transcription factor IIB Mja mini-intein== | ||
<StructureSection load='5o9j' size='340' side='right' caption='[[5o9j]], [[Resolution|resolution]] 2.00Å' scene=''> | <StructureSection load='5o9j' size='340' side='right'caption='[[5o9j]], [[Resolution|resolution]] 2.00Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[5o9j]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5O9J OCA]. For a <b>guided tour on the structure components</b> use [ | <table><tr><td colspan='2'>[[5o9j]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Methanocaldococcus_jannaschii_DSM_2661 Methanocaldococcus jannaschii DSM 2661]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5O9J OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5O9J FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=DIO:1,4-DIETHYLENE+DIOXIDE'>DIO</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=MES:2-(N-MORPHOLINO)-ETHANESULFONIC+ACID'>MES</scene>, <scene name='pdbligand=NH4:AMMONIUM+ION'>NH4</scene></td></tr> | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2Å</td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=DIO:1,4-DIETHYLENE+DIOXIDE'>DIO</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=MES:2-(N-MORPHOLINO)-ETHANESULFONIC+ACID'>MES</scene>, <scene name='pdbligand=NH4:AMMONIUM+ION'>NH4</scene></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=5o9j FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5o9j OCA], [https://pdbe.org/5o9j PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5o9j RCSB], [https://www.ebi.ac.uk/pdbsum/5o9j PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5o9j ProSAT]</span></td></tr> | |||
</table> | </table> | ||
== Function == | == Function == | ||
[ | [https://www.uniprot.org/uniprot/TF2B_METJA TF2B_METJA] Stabilizes TBP binding to an archaeal box-A promoter. Also responsible for recruiting RNA polymerase II to the pre-initiation complex (DNA-TBP-TFIIB). | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
== Publication Abstract from PubMed == | == Publication Abstract from PubMed == | ||
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</div> | </div> | ||
<div class="pdbe-citations 5o9j" style="background-color:#fffaf0;"></div> | <div class="pdbe-citations 5o9j" style="background-color:#fffaf0;"></div> | ||
==See Also== | |||
*[[Transcription initiation factors 3D structures|Transcription initiation factors 3D structures]] | |||
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: | [[Category: Methanocaldococcus jannaschii DSM 2661]] | ||
[[Category: | [[Category: Iwai H]] | ||
[[Category: | [[Category: Mikula KM]] | ||
[[Category: | [[Category: Wlodawer A]] | ||
[[Category: | [[Category: Zhou D]] | ||
Latest revision as of 14:22, 3 January 2024
Crystal structure of transcription factor IIB Mja mini-inteinCrystal structure of transcription factor IIB Mja mini-intein
Structural highlights
FunctionTF2B_METJA Stabilizes TBP binding to an archaeal box-A promoter. Also responsible for recruiting RNA polymerase II to the pre-initiation complex (DNA-TBP-TFIIB). Publication Abstract from PubMedInteins are mobile genetic elements that are spliced out of proteins after translation. Some inteins contain a homing endonuclease (HEN) responsible for their propagation. Hedgehog/INTein (HINT) domains catalyzing protein splicing and their nested HEN domains are thought to be functionally independent because of the existence of functional mini-inteins without HEN domains. Despite the lack of obvious mutualism between HEN and HINT domains, HEN domains are persistently found at one specific site in inteins, indicating their potential functional role in protein splicing. Here we report crystal structures of inactive and active mini-inteins derived from inteins residing in the transcription factor IIB of Methanococcus jannaschii and Methanocaldococcus vulcanius, revealing a novel modified HINT fold that might provide new insights on the mutualism between the HEN and HINT domains. We propose an evolutionary model of inteins and a functional role of HEN domains in inteins. Structural basis for the persistence of homing endonucleases in transcription factor IIB inteins.,Iwai H, Mikula KM, Oeemig JS, Zhou D, Li M, Wlodawer A J Mol Biol. 2017 Oct 18. pii: S0022-2836(17)30498-9. doi:, 10.1016/j.jmb.2017.10.016. PMID:29055778[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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