4atx

From Proteopedia

(Difference between revisions)

Revision as of 18:52, 10 April 2020

Rigor kinesin motor domain with an ordered neck-linker, docked on tubulin dimer, modelled into the 8A cryo-EM map of doublecortin- microtubules decorated with kinesin

4atx, resolution 8.20Å

Structural highlights

4atx is a 3 chain structure with sequence from Bos taurus and Buffalo rat. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	1jff, 1sa0, 1sa1, 1tvk, 1z2b, 2wbe, 2xrp, 4aqv, 4aqw, 4atu
Activity:	Tubulin GTPase, with EC number 3.6.5.6
Experimental data:	Check to display Experimental Data
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[TBB2B_BOVIN] 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 (By similarity). [KINH_RAT] Microtubule-dependent motor required for normal distribution of mitochondria and lysosomes (By similarity).[UniProtKB:Q61768] [TBA1D_BOVIN] 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 (By similarity).

Publication Abstract from PubMed

Doublecortin (Dcx) defines a growing family of microtubule (MT)-associated proteins (MAPs) involved in neuronal migration and process outgrowth. We show that Dcx is essential for the function of Kif1a, a kinesin-3 motor protein that traffics synaptic vesicles. Neurons lacking Dcx and/or its structurally conserved paralogue, doublecortin-like kinase 1 (Dclk1), show impaired Kif1a-mediated transport of Vamp2, a cargo of Kif1a, with decreased run length. Human disease-associated mutations in Dcx's linker sequence (e.g., W146C, K174E) alter Kif1a/Vamp2 transport by disrupting Dcx/Kif1a interactions without affecting Dcx MT binding. Dcx specifically enhances binding of the ADP-bound Kif1a motor domain to MTs. Cryo-electron microscopy and subnanometer-resolution image reconstruction reveal the kinesin-dependent conformational variability of MT-bound Dcx and suggest a model for MAP-motor crosstalk on MTs. Alteration of kinesin run length by MAPs represents a previously undiscovered mode of control of kinesin transport and provides a mechanism for regulation of MT-based transport by local signals.

Molecular basis for specific regulation of neuronal Kinesin-3 motors by doublecortin family proteins.,Liu JS, Schubert CR, Fu X, Fourniol FJ, Jaiswal JK, Houdusse A, Stultz CM, Moores CA, Walsh CA Mol Cell. 2012 Sep 14;47(5):707-21. doi: 10.1016/j.molcel.2012.06.025. Epub 2012 , Aug 1. PMID:22857951^[1]

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

References

↑ Liu JS, Schubert CR, Fu X, Fourniol FJ, Jaiswal JK, Houdusse A, Stultz CM, Moores CA, Walsh CA. Molecular basis for specific regulation of neuronal Kinesin-3 motors by doublecortin family proteins. Mol Cell. 2012 Sep 14;47(5):707-21. doi: 10.1016/j.molcel.2012.06.025. Epub 2012 , Aug 1. PMID:22857951 doi:http://dx.doi.org/10.1016/j.molcel.2012.06.025

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/4atx"

@@ Line 3: / Line 3: @@
 <SX load='4atx' size='340' side='right' viewer='molstar' caption='[[4atx]], [[Resolution|resolution]] 8.20&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[4atx]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus] and [http://en.wikipedia.org/wiki/Buffalo_rat Buffalo rat]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4ATX OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4ATX FirstGlance]. <br>
+<table><tr><td colspan='2'>[[4atx]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus] and [http://en.wikipedia.org/wiki/Buffalo_rat Buffalo rat]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4ATX OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=4ATX 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></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></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1jff|1jff]], [[1sa0|1sa0]], [[1sa1|1sa1]], [[1tvk|1tvk]], [[1z2b|1z2b]], [[2wbe|2wbe]], [[2xrp|2xrp]], [[4aqv|4aqv]], [[4aqw|4aqw]], [[4atu|4atu]]</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Tubulin_GTPase Tubulin GTPase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.6.5.6 3.6.5.6] </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=4atx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4atx OCA], [http://pdbe.org/4atx PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4atx RCSB], [http://www.ebi.ac.uk/pdbsum/4atx PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4atx 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=4atx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4atx OCA], [http://pdbe.org/4atx PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4atx RCSB], [http://www.ebi.ac.uk/pdbsum/4atx PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4atx ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 23: / Line 23: @@
 ==See Also==
 *[[Kinesin 3D Structures|Kinesin 3D Structures]]
-*[[Tubulin|Tubulin]]
+*[[Tubulin 3D Structures|Tubulin 3D Structures]]
 == References ==
 <references/>

4atx

From Proteopedia

Revision as of 18:52, 10 April 2020

Rigor kinesin motor domain with an ordered neck-linker, docked on tubulin dimer, modelled into the 8A cryo-EM map of doublecortin- microtubules decorated with kinesin

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

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