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Example sentences for: dazl
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Drosophila Boule mutants was defective in the translation of the meiosis-specific CDC25 homologue, Twine [ 11 ] , and DAZL was found to be associated with polyribosomes in mouse testes [ 12 ] . More recently, DAZL was shown both in vitro and in a yeast three-hybrid system to bind specifically to oligo(U) stretches interspersed by G or C residues, including a U-rich segment in the 5' UTR of mouse Cdc25C mRNA [ 13 ] .
Comparing the phenotypes of Dazl1 and Dazap1 single and double knock-out mice may provide some clues to the significance of their interaction.
RNA-binding proteins have been found to participate in many cellular functions, including RNA transcription, pre-mRNA processing, mRNA transport, localization, translation and stability [ 20 ] . A role for the DAZ family in the regulation of mRNA translation is supported by lines of circumstantial evidence, including the association of DAZL with polyribosomes [ 12 ] . The absence of DAZAP1 from polyribosomes indicates that it is not directly involved in protein synthesis.
Dazl1 and Dazap1 transcripts were also present in the testes of W v/W vmutant mice which contained diminished number of germ cells [ 18 ] . However, only Dazap1 was expressed in a mouse germ cell line GCl-spg [ 19 ] and a Sertoli cell line MT4.
Our previous fractionation of mouse testis extracts showed that most DAZL were present in the post mitochondrial fraction, and some of them were associated with polyribosomes [ 12 ] . Similar analyses showed that a majority of DAZAP1 in adult mouse testes was also present in the cytoplasmic fraction (data not shown).
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