2dfs: Difference between revisions

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<StructureSection load='2dfs' size='340' side='right'caption='[[2dfs]], [[Resolution|resolution]] 24.00&Aring;' scene=''>
<StructureSection load='2dfs' size='340' side='right'caption='[[2dfs]], [[Resolution|resolution]] 24.00&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[2dfs]] is a 14 chain structure with sequence from [https://en.wikipedia.org/wiki/Chick Chick] and [https://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2DFS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2DFS FirstGlance]. <br>
<table><tr><td colspan='2'>[[2dfs]] is a 14 chain structure with sequence from [https://en.wikipedia.org/wiki/Gallus_gallus Gallus gallus] and [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2DFS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2DFS FirstGlance]. <br>
</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=2dfs FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2dfs OCA], [https://pdbe.org/2dfs PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2dfs RCSB], [https://www.ebi.ac.uk/pdbsum/2dfs PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2dfs ProSAT]</span></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron crystallography, [[Resolution|Resolution]] 24&#8491;</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=2dfs FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2dfs OCA], [https://pdbe.org/2dfs PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2dfs RCSB], [https://www.ebi.ac.uk/pdbsum/2dfs PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2dfs ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/MYO5A_CHICK MYO5A_CHICK]] Processive actin-based motor that can move in large steps approximating the 36-nm pseudo-repeat of the actin filament. Involved in melanosome transport. Also mediates the transport of vesicles to the plasma membrane. May also be required for some polarization process involved in dendrite formation (By similarity).  
[https://www.uniprot.org/uniprot/MYO5A_CHICK MYO5A_CHICK] Processive actin-based motor that can move in large steps approximating the 36-nm pseudo-repeat of the actin filament. Involved in melanosome transport. Also mediates the transport of vesicles to the plasma membrane. May also be required for some polarization process involved in dendrite formation (By similarity).
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2dfs ConSurf].
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2dfs ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Unconventional myosin V (myoV) is an actin-based molecular motor that has a key function in organelle and mRNA transport, as well as in membrane trafficking. MyoV was the first member of the myosin superfamily shown to be processive, meaning that a single motor protein can 'walk' hand-over-hand along an actin filament for many steps before detaching. Full-length myoV has a low actin-activated MgATPase activity at low [Ca2+], whereas expressed constructs lacking the cargo-binding domain have a high activity regardless of [Ca2+] (refs 5-7). Hydrodynamic data and electron micrographs indicate that the active state is extended, whereas the inactive state is compact. Here we show the first three-dimensional structure of the myoV inactive state. Each myoV molecule consists of two heads that contain an amino-terminal motor domain followed by a lever arm that binds six calmodulins. The heads are followed by a coiled-coil dimerization domain (S2) and a carboxy-terminal globular cargo-binding domain. In the inactive structure, bending of myoV at the head-S2 junction places the cargo-binding domain near the motor domain's ATP-binding pocket, indicating that ATPase inhibition might occur through decreased rates of nucleotide exchange. The actin-binding interfaces are unobstructed, and the lever arm is oriented in a position typical of strong actin-binding states. This structure indicates that motor recycling after cargo delivery might occur through transport on actively treadmilling actin filaments rather than by diffusion.
Three-dimensional structure of the myosin V inhibited state by cryoelectron tomography.,Liu J, Taylor DW, Krementsova EB, Trybus KM, Taylor KA Nature. 2006 Jul 13;442(7099):208-11. Epub 2006 Apr 16. PMID:16625208<ref>PMID:16625208</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 2dfs" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[Calmodulin 3D structures|Calmodulin 3D structures]]
*[[Calmodulin 3D structures|Calmodulin 3D structures]]
*[[Myosin 3D Structures|Myosin 3D Structures]]
*[[Myosin 3D Structures|Myosin 3D Structures]]
== References ==
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Chick]]
[[Category: Gallus gallus]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Lk3 transgenic mice]]
[[Category: Mus musculus]]
[[Category: Krementsova, E B]]
[[Category: Krementsova EB]]
[[Category: Liu, J]]
[[Category: Liu J]]
[[Category: Taylor, D W]]
[[Category: Taylor DW]]
[[Category: Taylor, K A]]
[[Category: Taylor KA]]
[[Category: Trybus, K M]]
[[Category: Trybus KM]]
[[Category: Calmodulin]]
[[Category: Contractile protein-transport protein complex]]
[[Category: Cryoelectron tomography]]
[[Category: Inhibited state]]
[[Category: Myosin-v]]

Latest revision as of 16:47, 13 March 2024

3-D structure of Myosin-V inhibited state3-D structure of Myosin-V inhibited state

Structural highlights

2dfs is a 14 chain structure with sequence from Gallus gallus and Mus musculus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:Electron crystallography, Resolution 24Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

MYO5A_CHICK Processive actin-based motor that can move in large steps approximating the 36-nm pseudo-repeat of the actin filament. Involved in melanosome transport. Also mediates the transport of vesicles to the plasma membrane. May also be required for some polarization process involved in dendrite formation (By similarity).

Evolutionary Conservation

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

See Also

2dfs, resolution 24.00Å

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OCA
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