Transglutaminase-like activity participates in cell wall biogenesis in Saccharomyces cerevisiae

Transglutaminases (TGases) catalyze the cross-linking between protein molecules by formation of an amide bond between γ-carboxyamide group of glutamine and the ε-amine group of lysine under deamination of glutamine. We have demonstrated the participation of transglutaminase-like activity in the isolated cell walls and in the process of cell wall regeneration in protoplasts of the yeast Saccharomyces cerevisiae. A radioactive TGase substrate [3H]putrescine was incorporated into the isolated cell walls and into the TCA-insoluble fraction in regenerating protoplasts. The incorporation was increased by adding exogenous artificial substrate of TGase N,N’-dimethylcasein and was inhibited by TGase inhibitor cystamine and/or EDTA. These results suggest the existence of a TGase-type reaction involved in the formation of covalent cross-links between glycoprotein molecules during cell wall construction in S. cerevisiae.

• Publication year

  2007

• Venue

  Biologia

• Publication date

  2007-04-01

• Fields of study

  Biology

• Identifiers
  DOI 10.2478/s11756-007-0038-z
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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