1.5-year-old zebrafish do not display any obvious external phenotype. (A) Pictures of single mutant fish were taken at 1.5 year – single mutation did not cause any visible abnormalities. (B) Comparison of wild type and mutated sequences for hdac6 and hdac10 and sirt2 genes, the first changed amino acid caused by frameshift is indicated in red. (C) Schematic representation of proteins of interest – the red mark shows the premature stop codon caused by the mutation. (D) External phenotypes of double mutants and triple mutants. (E) qPCR results showing expression levels for hdac6, hdac10, and sirt2, relative to b-actin level and normalized to wild type (t-test ***p < 0.005).
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