Isolation of a yeast essential gene, COF1, that encodes a homologue of mammalian cofilin, a low-M(r) actin-binding and depolymerizing protein

Gene. 1993 Feb 14;124(1):115-20. doi: 10.1016/0378-1119(93)90770-4.


We have cloned a Saccharomyces cerevisiae gene (COF1) encoding a low-M(r) actin-binding protein of 143 amino acid (aa) residues (yeast cofilin; Cof); its aa sequence is 35% identical to porcine Cof. The yeast recombinant Cof produced in Escherichia coli exhibited in vitro activities on actin filaments similar to those of mammalian and avian Cof. Gene disruption and tetrad analysis showed that gene COF1 is essential for yeast cell growth. Expression of the cDNA of porcine Cof or destrin (Des), the latter a Cof-related protein, complemented the cof1 null allele in yeast cells.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Actin Depolymerizing Factors
  • Actins / metabolism
  • Amino Acid Sequence
  • Animals
  • Base Sequence
  • Cloning, Molecular
  • Escherichia coli / genetics
  • Genes, Fungal*
  • Kinetics
  • Microfilament Proteins / genetics*
  • Microfilament Proteins / metabolism
  • Molecular Sequence Data
  • Nerve Tissue Proteins / genetics*
  • Polymerase Chain Reaction / methods
  • Restriction Mapping
  • Saccharomyces cerevisiae / genetics*
  • Sequence Homology, Amino Acid
  • Swine


  • Actin Depolymerizing Factors
  • Actins
  • Microfilament Proteins
  • Nerve Tissue Proteins

Associated data

  • GENBANK/D13230
  • GENBANK/L03649
  • GENBANK/L03650
  • GENBANK/L03651
  • GENBANK/L03652
  • GENBANK/L03653
  • GENBANK/L03654
  • GENBANK/M91438
  • GENBANK/X62366
  • GENBANK/X62367