Function

Syntenin (SYNT) is a small intracellular adaptor which together with syndecan has a role in the biogenesis of secreted vesicles or exosomes[1]

Relevance

Exosomes secreted by cancer cells contribute to tumor progression and metastasis and analyzing their content can help in early detection of cancer as well as of other diseases. SYNT is over-expressed in breast and gastric cancer

Structural highlights

The 3D structure of the complex of SYNT PDZ1 and PDZ2 domains with a syndecan peptide shows the [2]. The peptide forms a β strand which runs antiparallel to the PDZ β strand. . Water molecules are shown as red spheres.

Syntenin 3D structures

3D structures of syntenin


Human syntenin PDZ1+PDZ2 domains (deep sky blue and green) complex with syndecan-4 peptide (pink and yellow) (PDB id 1ybo)

Drag the structure with the mouse to rotate

ReferencesReferences

  1. Friand V, David G, Zimmermann P. Syntenin and syndecan in the biogenesis of exosomes. Biol Cell. 2015 Oct;107(10):331-41. doi: 10.1111/boc.201500010. Epub 2015 Jun 30. PMID:26032692 doi:http://dx.doi.org/10.1111/boc.201500010
  2. Grembecka J, Cierpicki T, Devedjiev Y, Derewenda U, Kang BS, Bushweller JH, Derewenda ZS. The binding of the PDZ tandem of syntenin to target proteins. Biochemistry. 2006 Mar 21;45(11):3674-83. PMID:16533050 doi:10.1021/bi052225y

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Michal Harel, Alexander Berchansky