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Isolation and characterisation of a testis-expressed developmentally regulated gene from the distal inversion of the
N D Mazarakis1, D Nelki, M F Lyon
1Biomolecular Sciences Division, King's College London, Kensington, UK.
Abstract:
We differentially screened a pool of mouse testis clones in order to identify genes important in germ cell development. One of the isolated clones was found to be expressed only in the male germ line where it is first detected at around the pachytene spermatocyte stage. This gene maps to a subregion of the t-complex in the distal inversion near, but not within, the tw18 and the th20 deletions. A comparison of the t and wild forms of the gene reveals a high degree of sequence conservation. This gene is associated with a CpG-rich island at its 5' end. It encodes a novel protein with extensive alpha-helical structure indicative of coiled-coil interactions.