PROSITE logo
Black ribbon
We are deeply saddened by the passing of Amos Bairoch (1957–2025), the creator of PROSITE. We wish to dedicate our latest paper, published shortly before his death, to him. He will always be a source of inspiration to us.
Our deepest condolences go out to his family and friends, and to all those who had the privilege of working with him. Rest in peace, Amos. Your work will live on long after you are gone.
Amos Bairoch

PROSITE documentation PDOC51938
SUZ-C domain profile


View entry in original PROSITE document format
View entry in raw text format (no links)
PURL: https://purl.expasy.org/prosite/documentation/PDOC51938

Description

Microtubules are organized by the centrosome, a dynamic organelle that exhibits changes in both size and number during the cell cycle. The centrosome consists of a pair of centrioles surrounded by a mass of pericentriolar material (PCM). In Caenorhabditis elegans, SZY-20 is a centrosome-associated RNA-binding protein that negatively regulates centrosome assembly. SZY-20 and its animal orthologs share three prominent blocks of conservation. The N-terminal block is a short element, which is found exclusively in orthologs of SZY-20. The second block in the center of the protein, termed the SUZ domain (see <PDOC51673>), is the strongest stretch of conservation and is enriched in charged residues. The third block, the SUZ-C domain, is at the extreme C-terminus and is defined by a characteristic pattern of two highly conserved glycines and one absolutely conserved proline. The SUZ and SUZ-C domains occur independently in proteins outside of the SZY-20 family. Many of these proteins contain known RNA-binding domains. The SUZ-C domain is a putative RNA-binding domain [1,2].

Some proteins known to contain a SUZ-C domain are listed below:

  • Caenorhabditis elegans SZY-20,
  • Animal orthologs of Caenorhabditis elegans SZY-20.
  • Animal Cold shock domain-containing protein E1 (CSDE1), an RNA-binding protein.
  • Vertebrate La-related protein 6 (LARP6) or Acheron (Achn), conserved member of the Lupus antigen family of RNA binding proteins.

The profile we developed covers the entire SUZ-C domain.

Last update:

August 2020 / First entry.

-------------------------------------------------------------------------------


Technical section

PROSITE method (with tools and information) covered by this documentation:

SUZ_C, PS51938; SUZ-C domain profile  (MATRIX)


References

1AuthorsSong M.H. Aravind L. Mueller-Reichert T. O'Connell K.F.
TitleThe conserved protein SZY-20 opposes the Plk4-related kinase ZYG-1 to limit centrosome size.
SourceDev. Cell. 15:901-912(2008).
PubMed ID19081077
DOI10.1016/j.devcel.2008.09.018

2AuthorsStubenvoll M.D. Medley J.C. Irwin M. Song M.H.
TitleATX-2, the C. elegans Ortholog of Human Ataxin-2, Regulates Centrosome Size and Microtubule Dynamics.
SourcePLoS Genet. 12:E1006370-E1006370(2016).
PubMed ID27689799
DOI10.1371/journal.pgen.1006370



PROSITE is copyrighted by the SIB Swiss Institute of Bioinformatics and distributed under the Creative Commons Attribution-NonCommercial-NoDerivatives (CC BY-NC-ND 4.0) License, see prosite_license.html.