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3hkb

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Revision as of 08:01, 12 December 2018

Tubulin: RB3 Stathmin-like domain complex

Structural highlights

3hkb is a 5 chain structure with sequence from Buffalo rat and Ovis aries. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, ,
Related:	1sa0, 1sa1, 3hkc, 3hkd, 3hke
Gene:	Stmn4 (Buffalo rat)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[STMN4_RAT] Exhibits microtubule-destabilizing activity.^[1] ^[2] ^[3]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

Structural changes occur in the alphabeta-tubulin heterodimer during the microtubule assembly/disassembly cycle. Their most prominent feature is a transition from a straight, microtubular structure to a curved structure. There is a broad range of small molecule compounds that disturbs the microtubule cycle, a class of which targets the colchicine-binding site and prevents microtubule assembly. This class includes compounds with very different chemical structures, and it is presently unknown whether they prevent tubulin polymerization by the same mechanism. To address this issue, we have determined the structures of tubulin complexed with a set of such ligands and show that they interfere with several of the movements of tubulin subunits structural elements upon its transition from curved to straight. We also determined the structure of tubulin unliganded at the colchicine site; this reveals that a beta-tubulin loop (termed T7) flips into this site. As with colchicine site ligands, this prevents a helix which is at the interface with alpha-tubulin from stacking onto a beta-tubulin beta sheet as in straight protofilaments. Whereas in the presence of these ligands the interference with microtubule assembly gets frozen, by flipping in and out the beta-subunit T7 loop participates in a reversible way in the resistance to straightening that opposes microtubule assembly. Our results suggest that it thereby contributes to microtubule dynamic instability.

Variations in the colchicine-binding domain provide insight into the structural switch of tubulin.,Dorleans A, Gigant B, Ravelli RB, Mailliet P, Mikol V, Knossow M Proc Natl Acad Sci U S A. 2009 Aug 18;106(33):13775-9. Epub 2009 Aug 5. PMID:19666559^[4]

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

References

↑ Nakao C, Itoh TJ, Hotani H, Mori N. Modulation of the stathmin-like microtubule destabilizing activity of RB3, a neuron-specific member of the SCG10 family, by its N-terminal domain. J Biol Chem. 2004 May 28;279(22):23014-21. Epub 2004 Mar 22. PMID:15039434 doi:http://dx.doi.org/10.1074/jbc.M313693200
↑ Gavet O, El Messari S, Ozon S, Sobel A. Regulation and subcellular localization of the microtubule-destabilizing stathmin family phosphoproteins in cortical neurons. J Neurosci Res. 2002 Jun 1;68(5):535-50. PMID:12111843 doi:http://dx.doi.org/10.1002/jnr.10234
↑ Ravelli RB, Gigant B, Curmi PA, Jourdain I, Lachkar S, Sobel A, Knossow M. Insight into tubulin regulation from a complex with colchicine and a stathmin-like domain. Nature. 2004 Mar 11;428(6979):198-202. PMID:15014504 doi:http://dx.doi.org/10.1038/nature02393
↑ Dorleans A, Gigant B, Ravelli RB, Mailliet P, Mikol V, Knossow M. Variations in the colchicine-binding domain provide insight into the structural switch of tubulin. Proc Natl Acad Sci U S A. 2009 Aug 18;106(33):13775-9. Epub 2009 Aug 5. PMID:19666559

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3hkb"

@@ Line 1: / Line 1: @@
 ==Tubulin: RB3 Stathmin-like domain complex==
 <StructureSection load='3hkb' size='340' side='right' caption='[[3hkb]], [[Resolution|resolution]] 3.65&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1sa0|1sa0]], [[1sa1|1sa1]], [[3hkc|3hkc]], [[3hkd|3hkd]], [[3hke|3hke]]</td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Stmn4 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10116 Buffalo rat])</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=3hkb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3hkb OCA], [http://pdbe.org/3hkb PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3hkb RCSB], [http://www.ebi.ac.uk/pdbsum/3hkb PDBsum]</span></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=3hkb FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3hkb OCA], [http://pdbe.org/3hkb PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3hkb RCSB], [http://www.ebi.ac.uk/pdbsum/3hkb PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3hkb ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 14: / Line 15: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/hk/3hkb_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/hk/3hkb_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
@@ Line 33: / Line 34: @@
 *[[Stathmin|Stathmin]]
 *[[Tubulin|Tubulin]]
+*[[User:Alisa Cario|User:Alisa Cario]]
 == References ==
 <references/>

3hkb

From Proteopedia

Revision as of 08:01, 12 December 2018

Tubulin: RB3 Stathmin-like domain complex

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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