Pluripotency and a secretion mechanism of Drosophila transglutaminase

Research output: Contribution to journalReview article

2 Citations (Scopus)

Abstract

Transglutaminase (TG) catalyses the formation of an isopeptide bond between glutamine and lysine residues and amine incorporation into specific glutamine residues. TG is conserved in all metazoans and functions both intracellularly and extracellularly. Here we review the existing knowledge of Drosophila TG with an emphasis on its pluripotency: Drosophila TG (i) plays a key role in cuticular morphogenesis, haemolymph coagulation, and entrapment against invading pathogens, (ii) suppresses the immune deficiency pathway to enable immune tolerance against commensal bacteria through the incorporation of polyamines into the nuclear factor-iB-like transcription factor Relish as well as through the protein-protein cross-linking of Relish, (iii) forms a physical matrix in the gut through cross-linking of chitin-binding proteins and (iv) is involved in the maintenance of homeostasis in microbiota in the gut. Moreover, we review the evidence that TG-A, one of alternative splicing-derived isoforms of Drosophila TG, is secreted through an endoplasmic reticulum/Golgi-independent pathway involving exosomes and fatty acylations.

Original languageEnglish
Pages (from-to)165-176
Number of pages12
JournalJournal of biochemistry
Volume163
Issue number3
DOIs
Publication statusPublished - Mar 1 2018

Fingerprint

Transglutaminases
Drosophila
Glutamine
Exosomes
Acylation
Immune Tolerance
Chitin
Hemolymph
Alternative Splicing
Polyamines
Pathogens
Coagulation
Morphogenesis
Endoplasmic Reticulum
Lysine
Amines
Bacteria
Carrier Proteins
Protein Isoforms
Proteins

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Biology

Cite this

Pluripotency and a secretion mechanism of Drosophila transglutaminase. / Shibata, Toshio; Kawabata, Shun-Ichiro.

In: Journal of biochemistry, Vol. 163, No. 3, 01.03.2018, p. 165-176.

Research output: Contribution to journalReview article

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