PUBLICATION
Knockout of zebrafish desmin genes does not cause skeletal muscle degeneration but alters calcium flux
- Authors
- Kayman Kürekçi, G., Kural Mangit, E., Koyunlar, C., Unsal, S., Saglam, B., Ergin, B., Gizer, M., Uyanik, I., Boustanabadimaralan Düz, N., Korkusuz, P., Talim, B., Purali, N., Hughes, S.M., Dincer, P.R.
- ID
- ZDB-PUB-210407-73
- Date
- 2021
- Source
- Scientific Reports 11: 7505 (Journal)
- Registered Authors
- Hughes, Simon M.
- Keywords
- none
- MeSH Terms
-
- Gene Expression Profiling
- Embryo, Nonmammalian/metabolism
- Mutation/genetics
- Muscle Fibers, Skeletal/pathology
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Neuromuscular Junction/pathology
- Base Sequence
- Muscle, Skeletal/metabolism*
- Muscle, Skeletal/pathology*
- Muscle, Skeletal/ultrastructure
- Animals
- Zebrafish/embryology
- Zebrafish/genetics*
- Larva/genetics
- Gene Knockout Techniques*
- Calcium/metabolism*
- Desmin/genetics*
- Desmin/metabolism
- Gene Expression Regulation, Developmental
- PubMed
- 33820917 Full text @ Sci. Rep.
Citation
Kayman Kürekçi, G., Kural Mangit, E., Koyunlar, C., Unsal, S., Saglam, B., Ergin, B., Gizer, M., Uyanik, I., Boustanabadimaralan Düz, N., Korkusuz, P., Talim, B., Purali, N., Hughes, S.M., Dincer, P.R. (2021) Knockout of zebrafish desmin genes does not cause skeletal muscle degeneration but alters calcium flux. Scientific Reports. 11:7505.
Abstract
Desmin is a muscle-specific intermediate filament protein that has fundamental role in muscle structure and force transmission. Whereas human desmin protein is encoded by a single gene, two desmin paralogs (desma and desmb) exist in zebrafish. Desma and desmb show differential spatiotemporal expression during zebrafish embryonic and larval development, being similarly expressed in skeletal muscle until hatching, after which expression of desmb shifts to gut smooth muscle. We generated knockout (KO) mutant lines carrying loss-of-function mutations for each gene by using CRISPR/Cas9. Mutants are viable and fertile, and lack obvious skeletal muscle, heart or intestinal defects. In contrast to morphants, knockout of each gene did not cause any overt muscular phenotype, but did alter calcium flux in myofibres. These results point to a possible compensation mechanism in these mutant lines generated by targeting nonsense mutations to the first coding exon.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping