5w3f

From Proteopedia

(Difference between revisions)

Revision as of 22:16, 10 April 2020

Yeast tubulin polymerized with GTP in vitro

5w3f, resolution 3.70Å

Structural highlights

5w3f is a 2 chain structure with sequence from Baker's yeast. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Experimental data:	Check to display Experimental Data
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[TBA1_YEAST] Tubulin is the major constituent of microtubules. It binds two moles of GTP, one at an exchangeable site on the beta chain and one at a non-exchangeable site on the alpha chain. [TBB_YEAST] Tubulin is the major constituent of microtubules. It binds two moles of GTP, one at an exchangeable site on the beta chain and one at a non-exchangeable site on the alpha chain.

Publication Abstract from PubMed

Microtubules are polymers of alphabeta-tubulin heterodimers essential for all eukaryotes. Despite sequence conservation, there are significant structural differences between microtubules assembled in vitro from mammalian or budding yeast tubulin. Yeast MTs were not observed to undergo compaction at the interdimer interface as seen for mammalian microtubules upon GTP hydrolysis. Lack of compaction might reflect slower GTP hydrolysis or a different degree of allosteric coupling in the lattice. The microtubule plus end-tracking protein Bim1 binds yeast microtubules both between alphabeta-tubulin heterodimers, as seen for other organisms, and within tubulin dimers, but binds mammalian tubulin only at interdimer contacts. At the concentrations used in cryo-electron microscopy, Bim1 causes the compaction of yeast microtubules and induces their rapid disassembly. Our studies demonstrate structural differences between yeast and mammalian microtubules that likely underlie their differing polymerization dynamics. These differences may reflect adaptations to the demands of different cell size or range of physiological growth temperatures.

Structural differences between yeast and mammalian microtubules revealed by cryo-EM.,Howes SC, Geyer EA, LaFrance B, Zhang R, Kellogg EH, Westermann S, Rice LM, Nogales E J Cell Biol. 2017 Sep 4;216(9):2669-2677. doi: 10.1083/jcb.201612195. Epub 2017, Jun 26. PMID:28652389^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Howes SC, Geyer EA, LaFrance B, Zhang R, Kellogg EH, Westermann S, Rice LM, Nogales E. Structural differences between yeast and mammalian microtubules revealed by cryo-EM. J Cell Biol. 2017 Sep 4;216(9):2669-2677. doi: 10.1083/jcb.201612195. Epub 2017, Jun 26. PMID:28652389 doi:http://dx.doi.org/10.1083/jcb.201612195

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/5w3f"

@@ Line 3: / Line 3: @@
 <SX load='5w3f' size='340' side='right' viewer='molstar' caption='[[5w3f]], [[Resolution|resolution]] 3.70&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5w3f]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Baker's_yeast Baker's yeast]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5W3F OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5W3F FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5w3f]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Baker's_yeast Baker's yeast]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5W3F OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=5W3F FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GDP:GUANOSINE-5-DIPHOSPHATE'>GDP</scene>, <scene name='pdbligand=GTP:GUANOSINE-5-TRIPHOSPHATE'>GTP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GDP:GUANOSINE-5-DIPHOSPHATE'>GDP</scene>, <scene name='pdbligand=GTP:GUANOSINE-5-TRIPHOSPHATE'>GTP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5w3f FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5w3f OCA], [http://pdbe.org/5w3f PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5w3f RCSB], [http://www.ebi.ac.uk/pdbsum/5w3f PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5w3f ProSAT]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=5w3f FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5w3f OCA], [http://pdbe.org/5w3f PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5w3f RCSB], [http://www.ebi.ac.uk/pdbsum/5w3f PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5w3f ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 20: / Line 20: @@
 ==See Also==
-*[[Tubulin|Tubulin]]
+*[[Tubulin 3D Structures|Tubulin 3D Structures]]
 == References ==
 <references/>

5w3f

From Proteopedia

Revision as of 22:16, 10 April 2020

Yeast tubulin polymerized with GTP in vitro

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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