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Gene Review

pam-1  -  Protein PAM-1

Caenorhabditis elegans

 
 
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High impact information on pam-1

  • We have discovered roles for the C. elegans puromycin-sensitive aminopeptidase PAM-1 in both cell cycle progression and AP axis formation, further implicating proteolytic regulation in these processes. pam-1 mutant embryos exhibit a delay in exit from meiosis: thus, this peptidase is required for progression to mitotic interphase [1].
  • We also show that the pam-1 gene is expressed both maternally and paternally, providing additional evidence that sperm-donated gene products have important roles during early embryogenesis in C. elegans [1].
  • In addition, the centrosomes associated with the sperm pronucleus fail to closely associate with the posterior cortex in pam-1 mutants, and the AP axis is not specified [1].
  • Our analysis of PAM-1 requirements shows that a puromycin-sensitive aminopeptidase is also required for proteolytic regulation of the oocyte to embryo transition [1].
  • We conclude that pam-1 encodes an aminopeptidase that clusters phylogenetically with the PSAs, despite attenuated sensitivity toward puromycin, and that it functions in embryo development and reproduction of the nematode [2].
 

Biological context of pam-1

References

  1. The puromycin-sensitive aminopeptidase PAM-1 is required for meiotic exit and anteroposterior polarity in the one-cell Caenorhabditis elegans embryo. Lyczak, R., Zweier, L., Group, T., Murrow, M.A., Snyder, C., Kulovitz, L., Beatty, A., Smith, K., Bowerman, B. Development (2006) [Pubmed]
  2. The Caenorhabditis elegans orthologue of mammalian puromycin-sensitive aminopeptidase has roles in embryogenesis and reproduction. Brooks, D.R., Hooper, N.M., Isaac, R.E. J. Biol. Chem. (2003) [Pubmed]
 
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