title: Kzf1 - a novel KRAB zinc finger protein encoding gene expressed during rat spermatogenesis.
abstract: Two novel KRAB (Krüppel 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.
authors.affiliation: Department of Genetics and Molecular Biophysics and Biochemistry, Yale University School of Medicine, New Haven, CT 06510, USA. eb221@mole.bio.cam.ac.uk
authors.forename: E J
authors.initials: EJ
authors.lastname: Bellefroid
authors.forename: M
authors.initials: M
authors.lastname: Sahin
authors.forename: D A
authors.initials: DA
authors.lastname: Poncelet
authors.forename: M
authors.initials: M
authors.lastname: Rivière
authors.forename: C
authors.initials: C
authors.lastname: Bourguignon
authors.forename: J A
authors.initials: JA
authors.lastname: Martial
authors.forename: P L
authors.initials: PL
authors.lastname: Morris
authors.forename: T
authors.initials: T
authors.lastname: Pieler
authors.forename: C
authors.initials: C
authors.lastname: Szpirer
authors.forename: D C
authors.initials: DC
authors.lastname: Ward
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D018076:DNA, Complementary; D004268:DNA-Binding Proteins / Q000235:genetics* / Q000378:metabolism; D015870:Gene Expression; D006801:Humans; D008297:Male; D008969:Molecular Sequence Data; D051381:Rats; D013091:Spermatogenesis / Q000502:physiology; D013737:Testis / Q000378:metabolism*; D016335:Zinc Fingers
chemical_list: D018076:DNA, Complementary; D004268:DNA-Binding Proteins; C113684:Zfp386 protein, rat; C113685:Zfp455 protein, rat