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XB-ART-53822
Sci Rep January 1, 2017; 7 (1): 4858.
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The Cannabinoid Receptor Interacting Proteins 1 of zebrafish are not required for morphological development, viability or fertility.

Fin L , Bergamin G , Steiner RA , Hughes SM .


Abstract
The Cannabinoid Receptor Interacting Protein 1 (Cnrip1) was discovered as an interactor with the intracellular region of Cannabinoid Receptor 1 (CB1R, also known as Cnr1 or CB1). Functional assays in mouse show cannabinoid sensitivity changes and Cnrip1 has recently been suggested to control eye development in Xenopus laevis. Two Cnrip1 genes are described in zebrafish, cnrip1a and cnrip1b. In situ mRNA hybridisation revealed accumulation of mRNA encoding each gene primarily in brain and spinal cord, but also elsewhere. For example, cnrip1b is expressed in forming skeletal muscle. CRISPR/Cas9 genome editing generated predicted null mutations in cnrip1a and cnrip1b. Each mutation triggered nonsense-mediated decay of the respective mRNA transcript. No morphological or behavioural phenotype was observed in either mutant. Moreover, fish lacking both Cnrip1a and Cnrip1b both maternally and zygotically are viable and fertile and no phenotype has so far been detected despite strong evolutionary conservation over at least 400 Myr.

PubMed ID: 28687732
PMC ID: PMC5501828
Article link: Sci Rep
Grant support: [+]

Species referenced: Xenopus laevis
Genes referenced: cnr1 cnrip1


Article Images: [+] show captions
References [+] :
Anavi-Goffer, Helix 8 Leu in the CB1 cannabinoid receptor contributes to selective signal transduction mechanisms. 2007, Pubmed