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5g1e

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Revision as of 06:34, 13 May 2020

The complex structure of syntenin-1 PDZ domain with c-terminal extension

Structural highlights

5g1e is a 2 chain structure with sequence from Buffalo rat. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	5g1d
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[SDCB1_RAT] Multifunctional adapter protein involved in diverse array of functions including trafficking of transmembrane proteins, neuro and immunomodulation, exosome biogenesis, and tumorigenesis. Positively regulates TGFB1-mediated SMAD2/3 activation and TGFB1-induced epithelial-to-mesenchymal transition (EMT) and cell migration in various cell types. May increase TGFB1 signaling by enhancing cell-surface expression of TGFR1 by preventing the interaction between TGFR1 and CAV1 and subsequent CAV1-dependent internalization and degradation of TGFR1. In concert with SDC1/4 and PDCD6IP, regulates exosome biogenesis. Regulates migration, growth, proliferation, and cell cycle progression in a variety of cancer types. In adherens junctions may function to couple syndecans to cytoskeletal proteins or signaling components. Seems to couple transcription factor SOX4 to the IL-5 receptor (IL5RA). May also play a role in vesicular trafficking. Seems to be required for the targeting of TGFA to the cell surface in the early secretory pathway.[UniProtKB:O00560]

Publication Abstract from PubMed

The PDZ domain-containing scaffold protein, syntenin-1, binds to the transmembrane proteoglycan, syndecan-4, but the molecular mechanism/function of this interaction are unknown. Crystal structure analysis of syntenin-1/syndecan-4 cytoplasmic domains revealed that syntenin-1 forms a symmetrical pair of dimers anchored by a syndecan-4 dimer. The syndecan-4 cytoplasmic domain is a compact intertwined dimer with a symmetrical clamp shape and two antiparallel strands forming a cavity within the dimeric twist. The PDZ2 domain of syntenin-1 forms a direct antiparallel interaction with the syndecan-4 cytoplasmic domain, inhibiting the functions of syndecan-4 such as focal adhesion formation. Moreover, C-terminal region of syntenin-1 reveals an essential role for enhancing the molecular homodimerization. Mutation of key syntenin-1 residues involved in the syndecan-4 interaction or homodimer formation abolishes the inhibitory function of syntenin-1, as does deletion of the homodimerization-related syntenin-1 C-terminal domain. Syntenin-1, but not dimer-formation-incompetent mutants, rescued the syndecan-4-mediated inhibition of migration and pulmonary metastasis by B16F10 cells. Therefore, we conclude that syntenin-1 negatively regulates syndecan-4 function via oligomerization and/or syndecan-4 interaction, impacting cytoskeletal organization and cell migration.

New structural insight of C-terminal region of Syntenin-1, enhancing the molecular dimerization and inhibitory function related on Syndecan-4 signaling.,Choi Y, Yun JH, Yoo J, Lee I, Kim H, Son HN, Kim IS, Yoon HS, Zimmermann P, Couchman JR, Cho HS, Oh ES, Lee W Sci Rep. 2016 Nov 10;6:36818. doi: 10.1038/srep36818. PMID:27830760^[1]

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

References

↑ Choi Y, Yun JH, Yoo J, Lee I, Kim H, Son HN, Kim IS, Yoon HS, Zimmermann P, Couchman JR, Cho HS, Oh ES, Lee W. New structural insight of C-terminal region of Syntenin-1, enhancing the molecular dimerization and inhibitory function related on Syndecan-4 signaling. Sci Rep. 2016 Nov 10;6:36818. doi: 10.1038/srep36818. PMID:27830760 doi:http://dx.doi.org/10.1038/srep36818

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/5g1e"

@@ Line 1: / Line 1: @@
 ==The complex structure of syntenin-1 PDZ domain with c-terminal extension==
-<StructureSection load='5g1e' size='340' side='right' caption='[[5g1e]], [[Resolution|resolution]] 1.92&Aring;' scene=''>
+<StructureSection load='5g1e' size='340' side='right'caption='[[5g1e]], [[Resolution|resolution]] 1.92&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5g1e]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5G1E OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5G1E FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5g1e]] is a 2 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=5G1E OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=5G1E FirstGlance]. <br>
 </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5g1d|5g1d]]</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=5g1e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5g1e OCA], [http://pdbe.org/5g1e PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5g1e RCSB], [http://www.ebi.ac.uk/pdbsum/5g1e PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5g1e 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=5g1e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5g1e OCA], [http://pdbe.org/5g1e PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5g1e RCSB], [http://www.ebi.ac.uk/pdbsum/5g1e PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5g1e ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 22: / Line 22: @@
 __TOC__
 </StructureSection>
+[[Category: Buffalo rat]]
+[[Category: Large Structures]]
 [[Category: Kim, H]]
 [[Category: Lee, I]]

5g1e

From Proteopedia

Revision as of 06:34, 13 May 2020

The complex structure of syntenin-1 PDZ domain with c-terminal extension

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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