Human Genetics

, Volume 97, Issue 5, pp 625–631

Characterization of the human p57KIP2 gene: Alternative splicing, insertion/deletion polymorphisms in VNTR sequences in the coding region, and mutational analysis

  • Takashi Tokino
  • Tsutomu Urano
  • Tomohisa Furuhata
  • Mieko Matsushima
  • Takashi Miyatsu
  • Shin Sasaki
  • Yusuke Nakamura
Original Investigation

DOI: 10.1007/BF02281873

Cite this article as:
Tokino, T., Urano, T., Furuhata, T. et al. Hum Genet (1996) 97: 625. doi:10.1007/BF02281873

Abstract

We have isolated human cDNA and genomic clones of a gene termed p57KIP2, which is related to the p21WAF1 and p27KIP1 genes that encode inducible inhibitors of cyclin-dependent kinase activity. The p57 gene contains three GC-rich introns of 166 bp, 566 bp, and 83 bp, and two of the four exons correspond to coding regions. Alternative splicing generates the heterogeneity in the translational initiations. As this gene has been localized to chromosomal band l 1p15.5, a region thought to be the location of a tumor suppressor gene(s) for carcinomas of the breast, bladder, and liver, we have examined a large number of tumors for genetic alterations of p57. Although no somatic mutation has been detected, we have found several normal variations in this gene, including four types of 12-bp in-frame deletions in the proline/alanine repeating domain, in which nearly 40 motifs, viz., 5′-CCGGCC-3′, are tandemly repeated.

Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • Takashi Tokino
    • 1
  • Tsutomu Urano
    • 1
  • Tomohisa Furuhata
    • 1
  • Mieko Matsushima
    • 1
  • Takashi Miyatsu
    • 1
  • Shin Sasaki
    • 1
  • Yusuke Nakamura
    • 1
  1. 1.Laboratory of Molecular Medicine, The Institute of Medical ScienceThe University of TokyoTokyoJapan