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6exj

From Proteopedia

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PDZ domain from rat Shank3 bound to the C terminus of somatostatin receptor subtype 2

Structural highlights

6exj is a 4 chain structure with sequence from Buffalo rat. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
NonStd Res:
Related:	5ova, 5ovc, 5ovp, 5ovv
Gene:	Shank3, Prosap2 (Buffalo rat)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[SHAN3_RAT] Seems to be an adapter protein in the postsynaptic density (PSD) of excitatory synapses that interconnects receptors of the postsynaptic membrane including NMDA-type and metabotropic glutamate receptors via complexes with GKAP/PSD-95 and Homer, respectively, and the actin-based cytoskeleton. May play a role in the structural and functional organization of the dendritic spine and synaptic junction.

Publication Abstract from PubMed

The Shank proteins are crucial scaffolding elements of the post-synaptic density (PSD). One of the best-characterized domains in Shank is the PDZ domain, which binds to C-terminal segments of several other PSD proteins. We carried out a detailed structural analysis of Shank3 PDZ domain-peptide complexes, in order to understand determinants of binding affinity towards different ligand proteins. Ligand peptides from four different proteins were cocrystallized with the Shank3 PDZ domain, and binding affinities were determined calorimetrically. In addition, to conserve class I interactions between the first and third C-terminal peptide residue and Shank3, side chain interactions of other residues in the peptide with the PDZ domain are important factors in defining affinity. Structural conservation suggests that the binding specificities of the PDZ domains from different Shanks are similar. Two conserved buried water molecules in PDZ domains may affect correct local folding of ligand recognition determinants. The solution structure of a tandem Shank3 construct containing the SH3 and PDZ domains showed that the two domains are close to each other, which could be of relevance, when recognizing and binding full target proteins. The SH3 domain did not affect the affinity of the PDZ domain towards short target peptides, and the schizophrenia-linked Shank3 mutation R536W in the linker between the domains had no effect on the structure or peptide interactions of the Shank3 SH3-PDZ unit. Our data show the spatial arrangement of two adjacent Shank domains and pinpoint affinity determinants for short PDZ domain ligands with limited sequence homology. This article is protected by copyright. All rights reserved.

Structural basis for PDZ domain interactions in the post-synaptic density scaffolding protein Shank3.,Ponna SK, Ruskamo S, Myllykoski M, Keller C, Boeckers TM, Kursula P J Neurochem. 2018 Feb 23. doi: 10.1111/jnc.14322. PMID:29473168^[1]

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

References

↑ Ponna SK, Ruskamo S, Myllykoski M, Keller C, Boeckers TM, Kursula P. Structural basis for PDZ domain interactions in the post-synaptic density scaffolding protein Shank3. J Neurochem. 2018 Feb 23. doi: 10.1111/jnc.14322. PMID:29473168 doi:http://dx.doi.org/10.1111/jnc.14322

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/6exj"

@@ Line 3: / Line 3: @@
 <StructureSection load='6exj' size='340' side='right' caption='[[6exj]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[6exj]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6EXJ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6EXJ FirstGlance]. <br>
+<table><tr><td colspan='2'>[[6exj]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Buffalo_rat Buffalo rat]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6EXJ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6EXJ FirstGlance]. <br>
 </td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5ova|5ova]], [[5ovc|5ovc]], [[5ovp|5ovp]], [[5ovv|5ovv]]</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Shank3, Prosap2 ([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=6exj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6exj OCA], [http://pdbe.org/6exj PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6exj RCSB], [http://www.ebi.ac.uk/pdbsum/6exj PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6exj ProSAT]</span></td></tr>
 </table>
@@ Line 23: / Line 24: @@
 __TOC__
 </StructureSection>
+[[Category: Buffalo rat]]
 [[Category: Boeckers, T M]]
 [[Category: Keller, C]]

6exj

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Current revision

PDZ domain from rat Shank3 bound to the C terminus of somatostatin receptor subtype 2

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

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