ZNF75: isolation of a cDNA clone of the KRAB zinc finger gene subfamily mapped in YACs 1 Mb telomeric of HPRT

Genomics. 1993 Nov;18(2):223-9. doi: 10.1006/geno.1993.1459.

Abstract

We have previously mapped a zinc finger genomic motif (ZNF75) to the Xq26 cytogenetic band by using a hybrid panel. Here, we report the isolation of the transcribed counterpart in a cDNA clone and its further localization. The cDNA clone, from a lung fibroblast library, is assembled from three exons, including a 289 amino acid (AA) long open reading frame containing a recently described motif, the Kruppel-associated box, 42 AA long, in exon 2. By comparison with other reported members of the subfamily, the exon-intron boundaries also appear to be very well conserved. Further analysis allowed us to map this gene 1 Mb downstream from the HPRT gene in the published YAC contig that extends across Xq26. Two other motifs, 87 and 78% homologous to ZNF75 at the amino acid level, were identified by PCR on total human DNA, but map outside Xq24-qter.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Sequence
  • Animals
  • Base Sequence
  • Chromosome Mapping
  • Chromosomes, Artificial, Yeast
  • Cloning, Molecular
  • DNA, Complementary
  • Humans
  • Hypoxanthine Phosphoribosyltransferase / genetics*
  • Molecular Sequence Data
  • Multigene Family*
  • Open Reading Frames
  • Sequence Homology, Amino Acid
  • Telomere
  • X Chromosome*
  • Zinc Fingers / genetics*

Substances

  • DNA, Complementary
  • Hypoxanthine Phosphoribosyltransferase

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