RRC ID 65968
Author Watanabe Y, Okuya K, Takada Y, Kinoshita M, Yokoi S, Chisada S, Kamei Y, Tatsukawa H, Yamamoto N, Abe H, Hashimoto H, Hitomi K.
Title Gene disruption of medaka (Oryzias latipes) orthologue for mammalian tissue-type transglutaminase (TG2) causes movement retardation.
Journal J Biochem
Abstract Transglutaminases are an enzyme family that catalyses protein cross-linking essential for several biological functions. In the previous studies, we characterized the orthologues of the mammalian transglutaminase family in medaka (Oryzias latipes), an established fish model. Among the human isozymes, tissue-type transglutaminase (TG2) has multiple functions that are involved in several biological phenomena. In this study, we established medaka mutants deficient for the orthologue of human TG2 using the CRISPR/Cas9 and transcription activator-like effector nucleases systems. Although apparent morphological changes in the phenotype were not observed, movement retardation was found in the mutant fish when evaluated by a tank-diving test. Furthermore, comparative immunohistochemistry analysis using in this fish model revealed that orthologue of human TG2 was expressed at the periventricular layer of the optic tectum. Our findings provide novel insight for the relationship between tissue-type transglutaminase and the nervous system and the associated behaviour.
Volume 168(3)
Pages 213-222
Published 2020-9-1
DOI 10.1093/jb/mvaa038
PII 5816600
PMID 32251518
MeSH Animals Animals, Genetically Modified Behavior, Animal Brain / metabolism CRISPR-Cas Systems Fish Proteins / genetics* GTP-Binding Proteins / genetics* GTP-Binding Proteins / metabolism* Gene Editing Humans Movement* Oryzias / genetics* Oryzias / metabolism* Phenotype Protein Glutamine gamma Glutamyltransferase 2 Transglutaminases / genetics* Transglutaminases / metabolism*
IF 2.476
Medaka OK-Cab (MT830)