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Gene Review

CDC31  -  centrin

Saccharomyces cerevisiae S288c

Synonyms: Cell division control protein 31, DSK1, Nuclear pore protein CDC31, Nucleoporin CDC31, YOR257W
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Disease relevance of CDC31


High impact information on CDC31

  • A previously reported cdc31 temperature-sensitive allele, which is neither defective in SPB duplication nor Kic1 kinase activation, induces mRNA export defects [2].
  • We show that overproduction of a sequence, termed CID, in the carboxy-terminal domain of the nuclear export factor Sac3 titrates Cdc31, causing a dominant-lethal phenotype and a block in spindle pole body (SPB) duplication [2].
  • The Saccharomyces cerevisiae centrin, Cdc31p, binds Sfi1p on multiple conserved repeats; both proteins localize to the SPB half-bridge, where the new SPB is assembled [3].
  • Like cells containing mutations in two other genes required for this step of SPB duplication (CDC31 and KAR1), mps3-1 mutants arrest with a single unduplicated SPB that lacks an associated half-bridge [4].
  • We determined that CDC31 gene function is downstream of DSK2 and KAR1 [5].

Biological context of CDC31


Anatomical context of CDC31


Physical interactions of CDC31

  • Using a protein blotting technique, Cdc31p bound to Kar1p in vitro via an essential domain in Kar1p required for SPB duplication (Vallen, E. A., M. A. Hiller, T. Y. Scherson, and M. D. Rose. 1992a. J. Cell Biol. 117:1277-1287) [1].
  • Cdc31p was also able to bind to the carboxy terminus of Nuflp/Spc110p, another component of the SPB (Kilmartin, J. V., S. L. Dyos, D. Kershaw, and J. T. Finch. 1993. J. Cell Biol. 123:1175-1184) [12].
  • On the basis of comparison with these related proteins, it is evident that the CDC31 gene product has at least two binding sites for Ca2+ and is also homologous with other regions of the calmodulin sequence [9].

Other interactions of CDC31

  • The Saccharomyces cerevisiae genes KAR1 and CDC31 are required for the initial stages of spindle pole body (SPB) duplication in yeast [1].
  • Subsequently, we demonstrated extensive genetic interactions between the PKC1 pathway and the SPB duplication mutants that affect Cdc31p function [13].
  • CDC31 is required for SPB duplication and encodes a calmodulin-like protein that is most closely related to caltractin/centrin, a protein associated with the Chlamydomonas basal body [6].
  • We conclude that Kic1p function is dependent upon Cdc31p both in vivo and in vitro [7].

Analytical, diagnostic and therapeutic context of CDC31


  1. Direct interaction between yeast spindle pole body components: Kar1p is required for Cdc31p localization to the spindle pole body. Biggins, S., Rose, M.D. J. Cell Biol. (1994) [Pubmed]
  2. Yeast centrin Cdc31 is linked to the nuclear mRNA export machinery. Fischer, T., Rodríguez-Navarro, S., Pereira, G., Rácz, A., Schiebel, E., Hurt, E. Nat. Cell Biol. (2004) [Pubmed]
  3. Structural role of Sfi1p-centrin filaments in budding yeast spindle pole body duplication. Li, S., Sandercock, A.M., Conduit, P., Robinson, C.V., Williams, R.L., Kilmartin, J.V. J. Cell Biol. (2006) [Pubmed]
  4. Mps3p is a novel component of the yeast spindle pole body that interacts with the yeast centrin homologue Cdc31p. Jaspersen, S.L., Giddings, T.H., Winey, M. J. Cell Biol. (2002) [Pubmed]
  5. Yeast ubiquitin-like genes are involved in duplication of the microtubule organizing center. Biggins, S., Ivanovska, I., Rose, M.D. J. Cell Biol. (1996) [Pubmed]
  6. Genetic interactions between CDC31 and KAR1, two genes required for duplication of the microtubule organizing center in Saccharomyces cerevisiae. Vallen, E.A., Ho, W., Winey, M., Rose, M.D. Genetics (1994) [Pubmed]
  7. The yeast centrin, cdc31p, and the interacting protein kinase, Kic1p, are required for cell integrity. Sullivan, D.S., Biggins, S., Rose, M.D. J. Cell Biol. (1998) [Pubmed]
  8. Identification and localization of a novel, cytoskeletal, centrosome-associated protein in PtK2 cells. Baron, A.T., Salisbury, J.L. J. Cell Biol. (1988) [Pubmed]
  9. Yeast gene required for spindle pole body duplication: homology of its product with Ca2+-binding proteins. Baum, P., Furlong, C., Byers, B. Proc. Natl. Acad. Sci. U.S.A. (1986) [Pubmed]
  10. Identification of a new mammalian centrin gene, more closely related to Saccharomyces cerevisiae CDC31 gene. Middendorp, S., Paoletti, A., Schiebel, E., Bornens, M. Proc. Natl. Acad. Sci. U.S.A. (1997) [Pubmed]
  11. The spindle pole body assembly component mps3p/nep98p functions in sister chromatid cohesion. Antoniacci, L.M., Kenna, M.A., Uetz, P., Fields, S., Skibbens, R.V. J. Biol. Chem. (2004) [Pubmed]
  12. The Cdc31p-binding protein Kar1p is a component of the half bridge of the yeast spindle pole body. Spang, A., Courtney, I., Grein, K., Matzner, M., Schiebel, E. J. Cell Biol. (1995) [Pubmed]
  13. Functional interaction between the PKC1 pathway and CDC31 network of SPB duplication genes. Khalfan, W., Ivanovska, I., Rose, M.D. Genetics (2000) [Pubmed]
  14. Molecular cloning of cDNA for caltractin, a basal body-associated Ca2+-binding protein: homology in its protein sequence with calmodulin and the yeast CDC31 gene product. Huang, B., Mengersen, A., Lee, V.D. J. Cell Biol. (1988) [Pubmed]
  15. The calcium-binding protein cell division cycle 31 of Saccharomyces cerevisiae is a component of the half bridge of the spindle pole body. Spang, A., Courtney, I., Fackler, U., Matzner, M., Schiebel, E. J. Cell Biol. (1993) [Pubmed]
  16. Cloning of a cDNA encoding human centrin, an EF-hand protein of centrosomes and mitotic spindle poles. Errabolu, R., Sanders, M.A., Salisbury, J.L. J. Cell. Sci. (1994) [Pubmed]
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