5vlj

From Proteopedia

(Difference between revisions)

Revision as of 14:41, 6 November 2017

Cryo-EM structure of yeast cytoplasmic dynein with Walker B mutation at AAA3 in presence of ATP-VO4

Structural highlights

5vlj is a 3 chain structure with sequence from Atcc 18824. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	5vh9
Gene:	DYN1, DHC1, YKR054C (ATCC 18824), PAC1, LIS1, SCY_5321 (ATCC 18824)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[DYHC_YEAST] Cytoplasmic dynein acts as a motor for the intracellular retrograde motility of vesicles and organelles along microtubules. Dynein has ATPase activity; the force-producing power stroke is thought to occur on release of ADP. Required to maintain uniform nuclear distribution in hyphae. May play an important role in the proper orientation of the mitotic spindle into the budding daughter cell yeast. Probably required for normal progression of the cell cycle.^[1] [LIS1_YEAS7] Positively regulates the activity of the minus-end directed microtubule motor protein dynein. Plays a central role in positioning the mitotic spindle at the bud neck during cell division. Targets cytoplasmic dynein to microtubule plus ends, thereby promoting dynein-mediated microtubule sliding along the bud cortex and consequently the movement of the mitotic spindle to the bud neck.

Publication Abstract from PubMed

Regulation is central to the functional versatility of cytoplasmic dynein, a motor involved in intracellular transport, cell division, and neurodevelopment. Previous work established that Lis1, a conserved regulator of dynein, binds to its motor domain and induces a tight microtubule-binding state in dynein. The work we present here-a combination of biochemistry, single-molecule assays, and cryoelectron microscopy-led to the surprising discovery that Lis1 has two opposing modes of regulating dynein, being capable of inducing both low and high affinity for the microtubule. We show that these opposing modes depend on the stoichiometry of Lis1 binding to dynein and that this stoichiometry is regulated by the nucleotide state of dynein's AAA3 domain. The low-affinity state requires Lis1 to also bind to dynein at a novel conserved site, mutation of which disrupts Lis1's function in vivo. We propose a new model for the regulation of dynein by Lis1.

Lis1 Has Two Opposing Modes of Regulating Cytoplasmic Dynein.,DeSantis ME, Cianfrocco MA, Htet ZM, Tran PT, Reck-Peterson SL, Leschziner AE Cell. 2017 Sep 7;170(6):1197-1208.e12. doi: 10.1016/j.cell.2017.08.037. PMID:28886386^[2]

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

References

↑ Lee WL, Kaiser MA, Cooper JA. The offloading model for dynein function: differential function of motor subunits. J Cell Biol. 2005 Jan 17;168(2):201-7. Epub 2005 Jan 10. PMID:15642746 doi:http://dx.doi.org/10.1083/jcb.200407036
↑ DeSantis ME, Cianfrocco MA, Htet ZM, Tran PT, Reck-Peterson SL, Leschziner AE. Lis1 Has Two Opposing Modes of Regulating Cytoplasmic Dynein. Cell. 2017 Sep 7;170(6):1197-1208.e12. doi: 10.1016/j.cell.2017.08.037. PMID:28886386 doi:http://dx.doi.org/10.1016/j.cell.2017.08.037

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

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

@@ Line 3: / Line 3: @@
 <StructureSection load='5vlj' size='340' side='right' caption='[[5vlj]], [[Resolution|resolution]] 10.50&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5vlj]] is a 3 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5VLJ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5VLJ FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5vlj]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Atcc_18824 Atcc 18824]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5VLJ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5VLJ FirstGlance]. <br>
 </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5vh9|5vh9]]</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">DYN1, DHC1, YKR054C ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824]), PAC1, LIS1, SCY_5321 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 ATCC 18824])</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=5vlj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5vlj OCA], [http://pdbe.org/5vlj PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5vlj RCSB], [http://www.ebi.ac.uk/pdbsum/5vlj PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5vlj ProSAT]</span></td></tr>
 </table>
@@ Line 22: / Line 23: @@
 __TOC__
 </StructureSection>
+[[Category: Atcc 18824]]
 [[Category: Cianfrocco, M A]]
 [[Category: DeSantis, M E]]

5vlj

From Proteopedia

Revision as of 14:41, 6 November 2017

Cryo-EM structure of yeast cytoplasmic dynein with Walker B mutation at AAA3 in presence of ATP-VO4

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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