|ZFIN ID: ZDB-IMAGE-130205-14|
Fig. 4 Phosphate homeostasis is disturbed in nob mutants. (A) Nob mutants can mineralize their skeleton in the absence of dgfhu4581 function, and will even show ectopic mineralization (arrows point at protrusions of the cleithrum, a typical feature of dgf mutants). (B) Exogenous phosphate partially rescues the nob mutant phenotype. Arrow points at partially mineralized cleithrum. All images represent lateral views of the head skeleton at 6 dpf. (C) Quantitative PCR on 7-dpf embryos revealed that, compared with siblings (white bars), fgf23 expression levels are significantly down-regulated and npt2a expression is significantly up-regulated in nob mutant embryos (gray bars). Results are expressed as mean ± SEM of three independent experiments, with *P < 0.05 and **P < 0.005.
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