View source for 8hmd


==base module state 2 of Tetrahymena IFT-A==
<StructureSection load='8hmd' size='340' side='right'caption='[[8hmd]], [[Resolution|resolution]] 4.70&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[8hmd]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Tetrahymena_thermophila Tetrahymena thermophila]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8HMD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8HMD FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 4.7&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</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=8hmd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8hmd OCA], [https://pdbe.org/8hmd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8hmd RCSB], [https://www.ebi.ac.uk/pdbsum/8hmd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8hmd ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/Q244W3_TETTS Q244W3_TETTS] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Intraflagellar transport (IFT) trains, the polymers composed of two multi-subunit complexes, IFT-A and IFT-B, carry out bidirectional intracellular transport in cilia, vital for cilia biogenesis and signaling. IFT-A plays crucial roles in the ciliary import of membrane proteins and the retrograde cargo trafficking. However, the molecular architecture of IFT-A and the assembly mechanism of the IFT-A into the IFT trains in vivo remains elusive. Here, we report the cryo-electron microscopic structures of the IFT-A complex from protozoa Tetrahymena thermophila. We find that IFT-A complexes present two distinct, elongated and folded states. Remarkably, comparison with the in situ cryo-electron tomography structure of the anterograde IFT train unveils a series of adjustments of the flexible arms in apo IFT-A when incorporated into the anterograde train. Our results provide an atomic-resolution model for the IFT-A complex and valuable insights into the assembly mechanism of anterograde IFT trains.

Structural insight into the intraflagellar transport complex IFT-A and its assembly in the anterograde IFT train.,Ma Y, He J, Li S, Yao D, Huang C, Wu J, Lei M Nat Commun. 2023 Mar 17;14(1):1506. doi: 10.1038/s41467-023-37208-2. PMID:36932088<ref>PMID:36932088</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 8hmd" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Tetrahymena thermophila]]
[[Category: Lei M]]
[[Category: Ma Y]]
[[Category: Wu J]]