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    Glossary Transglutaminase

    enzyme that cross-links proteins, crucial for hair strength

    Transglutaminase, often abbreviated as TGase, is an enzyme that catalyzes the formation of covalent bonds between proteins, specifically by linking the amino acid glutamine to lysine. This process is crucial for various biological functions, including blood clotting, skin formation, and hair follicle development. In the context of hair, transglutaminase helps strengthen the hair shaft by cross-linking keratin proteins, contributing to hair's structural integrity and resilience.

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      research Human epidermal transglutaminase. Preparation and properties.

      138 citations , December 1976 in “Journal of Biological Chemistry”
      This study purified a transglutaminase enzyme from human epidermis that requires calcium or strontium for activity and forms cross-linked polymers, but its detailed activation mechanism remains unclear.

      research The Proximal Promoter of the Human Transglutaminase 3 Gene

      105 citations , February 1996 in “Journal of biological chemistry/˜The œJournal of biological chemistry”
      In this study, sequences upstream of the TGM3 gene were found to regulate epithelial-specific gene expression in keratinocytes, suggesting potential applications in gene therapy.

      research Transglutaminase from Hair Follicle of Guinea Pig

      103 citations , February 1972 in “Proceedings of the National Academy of Sciences”
      This study found that a unique transglutaminase in guinea pig hair-follicles, distinct from liver transglutaminase, likely plays a role in forming protein cross-links via ε(γ-glutamyl)lysine bonds.

      research Kinetic Studies with Transglutaminases

      91 citations , May 1972 in “Journal of Biological Chemistry”
      This research found that the transfer reaction catalyzed by human plasma and guinea pig hair follicle transglutaminases aligns with a ping-pong mechanism involving peptide-bound glutamine.