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6a30

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Revision as of 08:30, 4 November 2020

Crystal Structure of Munc13-1 MUN Domain and Synaptobrevin-2 Juxtamembrane Linker Region

Structural highlights

6a30 is a 2 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[UN13A_RAT] Plays a role in vesicle maturation during exocytosis as a target of the diacylglycerol second messenger pathway. Involved in neurotransmitter release by acting in synaptic vesicle priming prior to vesicle fusion and participates in the activity-dependent refilling of readily releasable vesicle pool (RRP). Essential for synaptic vesicle maturation in most excitatory/glutamatergic but not inhibitory/GABA-mediated synapses. Also involved in secretory granule priming in insulin secretion.^[1] ^[2] ^[3] [VAMP2_RAT] Involved in the targeting and/or fusion of transport vesicles to their target membrane (By similarity).

Publication Abstract from PubMed

The transition of the Munc18-1/syntaxin-1 complex to the SNARE complex, a key step involved in exocytosis, is regulated by Munc13-1, SNAP-25 and synaptobrevin-2, but the underlying mechanism remains elusive. Here, we identify an interaction between Munc13-1 and the membrane-proximal linker region of synaptobrevin-2, and reveal its essential role in transition and exocytosis. Upon this interaction, Munc13-1 not only recruits synaptobrevin-2-embedded vesicles to the target membrane but also renders the synaptobrevin-2 SNARE motif more accessible to the Munc18-1/syntaxin-1 complex. Afterward, the entry of SNAP-25 leads to a half-zippered SNARE assembly, which eventually dissociates the Munc18-1/syntaxin-1 complex to complete SNARE complex formation. Our data suggest that Munc18-1 and Munc13-1 together serve as a functional template to orchestrate SNARE complex assembly.

Munc18 and Munc13 serve as a functional template to orchestrate neuronal SNARE complex assembly.,Wang S, Li Y, Gong J, Ye S, Yang X, Zhang R, Ma C Nat Commun. 2019 Jan 8;10(1):69. doi: 10.1038/s41467-018-08028-6. PMID:30622273^[4]

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

References

↑ Betz A, Ashery U, Rickmann M, Augustin I, Neher E, Sudhof TC, Rettig J, Brose N. Munc13-1 is a presynaptic phorbol ester receptor that enhances neurotransmitter release. Neuron. 1998 Jul;21(1):123-36. PMID:9697857
↑ Betz A, Thakur P, Junge HJ, Ashery U, Rhee JS, Scheuss V, Rosenmund C, Rettig J, Brose N. Functional interaction of the active zone proteins Munc13-1 and RIM1 in synaptic vesicle priming. Neuron. 2001 Apr;30(1):183-96. PMID:11343654
↑ Rhee JS, Betz A, Pyott S, Reim K, Varoqueaux F, Augustin I, Hesse D, Sudhof TC, Takahashi M, Rosenmund C, Brose N. Beta phorbol ester- and diacylglycerol-induced augmentation of transmitter release is mediated by Munc13s and not by PKCs. Cell. 2002 Jan 11;108(1):121-33. PMID:11792326
↑ Wang S, Li Y, Gong J, Ye S, Yang X, Zhang R, Ma C. Munc18 and Munc13 serve as a functional template to orchestrate neuronal SNARE complex assembly. Nat Commun. 2019 Jan 8;10(1):69. doi: 10.1038/s41467-018-08028-6. PMID:30622273 doi:http://dx.doi.org/10.1038/s41467-018-08028-6

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/6a30"

@@ Line 1: / Line 1: @@
 ==Crystal Structure of Munc13-1 MUN Domain and Synaptobrevin-2 Juxtamembrane Linker Region==
-<StructureSection load='6a30' size='340' side='right' caption='[[6a30]], [[Resolution|resolution]] 2.79&Aring;' scene=''>
+<StructureSection load='6a30' size='340' side='right'caption='[[6a30]], [[Resolution|resolution]] 2.79&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[6a30]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6A30 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6A30 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[6a30]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6A30 OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=6A30 FirstGlance]. <br>
-</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=6a30 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6a30 OCA], [http://pdbe.org/6a30 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6a30 RCSB], [http://www.ebi.ac.uk/pdbsum/6a30 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6a30 ProSAT]</span></td></tr>
+</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=6a30 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6a30 OCA], [http://pdbe.org/6a30 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6a30 RCSB], [http://www.ebi.ac.uk/pdbsum/6a30 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6a30 ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 21: / Line 21: @@
 __TOC__
 </StructureSection>
+[[Category: Large Structures]]
 [[Category: Gong, J H]]
 [[Category: Li, Y]]

6a30

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Revision as of 08:30, 4 November 2020

Crystal Structure of Munc13-1 MUN Domain and Synaptobrevin-2 Juxtamembrane Linker Region

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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