Abstract
A new zinc finger gene of the Krüppel family was identified by screening a human fetal cartilage cDNA library with degenerate oligonucleotides. Sequence analysis indicates that ZFP95 contains 12 highly conserved zinc finger motifs at the C-terminus and a SCAN box as well as a KRAB A domain at the N-terminus of the protein. ZFP95 represents a member of a new subclass of Krüppel zinc finger proteins containing both a SCAN box and a KRAB domain. Sequence comparison revealed that ZFP95 is the human ortholog of murine Zfp95, which is differentially expressed during spermatogenesis. We demonstrate that ZFP95 is ubiquitously expressed in adult and fetal tissues with the strongest expression in testis. Two transcripts, 4.2 and 4.6 kb, were detected in all tissues tested. In testis, a third transcript of 3.8 kb was present. RT-PCR analysis confirmed alternative splicing for the KRAB A domain and an upstream exon leading to three transcripts of ZFP95 with and without this transcriptional repressor domain. Finally, we show that ZFP95 maps on human chromosome 7q22 between the markers D7S651 and WI-5853.
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