[en] Two novel KRAB (Kruppel associated box) type zinc finger protein encoding cDNAs, named Kzf1 and Kzf2 (Kzf for KRAB zinc finger), were identified by screening of a rat embryonic brain cDNA library with a human ZNF91 KRAB probe. Kzf1 and Kzf2 encode proteins with an amino-terminal KRAB domain and a carboxy-terminal zinc finger cluster containing 9 and 13 zinc finger units, respectively. While Kzf2 appears to be ubiquitously expressed, Kzf1 is preferentially expressed in the testis. Within the testis, Kzf1 mRNA is restricted to germ cells. The Kzf1 protein exhibits DNA binding activity and its KRAB domain can function as a repressor module in transcription. Using somatic cell hybrid analysis, the Kzf1 gene was mapped to chromosome 6.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Bellefroid, Eric J.; Yale University School of Medicine
Sahin, Mustapha; Yale University School of Medicine
Poncelet, Dominique A
Riviere, Michèle; Université Libre de Bruxelles - ULB
Bourguignon, Catherine; Yale University School of Medicine
Martial, Joseph ; Université de Liège - ULiège > Département des sciences de la vie > GIGA-R : Biologie et génétique moléculaire
Morris, Patricia L; The Population Council and The Rockefeller University
Pieler, Tomas; Georg-August-Universität Göttingen
Szpirer, Claude; Université Libre de Bruxelles
Ward, David C; Yale University School of Medicine
Language :
English
Title :
Kzf1 - a novel KRAB zinc finger protein encoding gene expressed during rat spermatogenesis
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