Thermal stability of cytochrome c₅ of pressure-sensitive Shewanella livingstonensis

Biosci Biotechnol Biochem. 2011;75(9):1859-61. doi: 10.1271/bbb.110370. Epub 2011 Sep 7.

Abstract

Cytochrome c₅ of pressure-sensitive Shewanella livingstonensis (SL cytc₅) exhibits lower thermal stability than a highly homologous counterpart of pressure-tolerant Shewanella violacea. This stability difference is due to an enthalpic effect that can be attributed to the amino acid residue at position 50 (Leu or Lys). These cytc₅ proteins are appropriate materials for understanding the protein stability mechanism.

MeSH terms

  • Amino Acid Sequence
  • Aquatic Organisms / chemistry
  • Aquatic Organisms / enzymology*
  • Bacterial Proteins / chemistry*
  • Bacterial Proteins / genetics
  • Bacterial Proteins / metabolism
  • Cloning, Molecular
  • Cytochrome c Group / chemistry*
  • Cytochrome c Group / genetics
  • Cytochrome c Group / metabolism
  • Enzyme Stability
  • Escherichia coli
  • Models, Molecular
  • Molecular Sequence Data
  • Phase Transition
  • Plasmids
  • Pressure
  • Protein Structure, Secondary
  • Recombinant Proteins / chemistry*
  • Recombinant Proteins / genetics
  • Recombinant Proteins / metabolism
  • Shewanella / chemistry
  • Shewanella / enzymology*
  • Temperature
  • Thermodynamics
  • Transformation, Bacterial

Substances

  • Bacterial Proteins
  • Cytochrome c Group
  • Recombinant Proteins
  • cytochrome C5