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  • Title: Zebrafish spata2 is expressed at early developmental stages.
    Author: Moro E, Maran C, Slongo ML, Argenton F, Toppo S, Onisto M.
    Journal: Int J Dev Biol; 2007; 51(3):241-6. PubMed ID: 17486545.
    Abstract:
    Spata2 (spermatogenesis-associated protein 2) was originally described as a novel gene involved in the spermatogenic process. In this study, we cloned a potential zebrafish spata2 orthologue. The consensus open reading frame (1650 bp) encodes a polypeptide of 550 amino acids which shares 37% identity with the human SPATA2. Bioinformatic analysis reveals a small pattern PW [KR] KE [YF][RK] which seems to be of particular interest in the light of its strong conservation between SPATA2 and the recently discovered TAMO protein of D. melanogaster. RT-PCR analysis in adult zebrafish tissues revealed that spata2 mRNA has a broad distribution. Whole-mount in situ hybridization demonstrated that spata2 transcripts are maternally derived and becomes strongly localized in the central nervous system at early developmental stages. From 5 dpf, spata2 expression becomes detectable in the gut and pronephric duct epithelium, suggesting a wide tissue function during vertebrate development.
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