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Association of erythroid transcription factors : complexes involving the LIM protein RBTN2 and the zinc-finger protein GATA1

Författare

  • H Osada
  • G Grutz
  • H Axelson
  • A Forster
  • T H Rabbitts

Summary, in English

The RBTN2 LIM-domain protein, originally identified as an oncogenic protein in human T-cell leukemia, is essential for erythropoiesis. A possible role for RBTN2 in transcription during erythropoiesis has been investigated. Direct interaction of the RBTN2 protein was observed in vivo and in vitro with the GATA1 or -2 zinc-finger transcription factors, as well as with the basic helix-loop-helix protein TAL1. By using mammalian two-hybrid analysis, complexes involving RBTN2, TAL1, and GATA1, together with E47, the basic helix-loop-helix heterodimerization partner of TAL1, could be demonstrated. Thus, a molecular link exists between three proteins crucial for erythropoiesis, and the data suggest that variations in amounts of complexes involving RBTN2, TAL1, and GATA1 could be important for erythroid differentiation.

Publiceringsår

1995-10-10

Språk

Engelska

Sidor

9-9585

Publikation/Tidskrift/Serie

Proceedings of the National Academy of Sciences

Volym

92

Issue

21

Dokumenttyp

Artikel i tidskrift

Förlag

National Academy of Sciences

Ämne

  • Hematology

Nyckelord

  • Adaptor Proteins, Signal Transducing
  • Amino Acid Sequence
  • Animals
  • Basic Helix-Loop-Helix Transcription Factors
  • DNA-Binding Proteins
  • Erythroid-Specific DNA-Binding Factors
  • Erythropoiesis
  • GATA1 Transcription Factor
  • Helix-Loop-Helix Motifs
  • Homeodomain Proteins
  • LIM Domain Proteins
  • Leukemia, Erythroblastic, Acute
  • Metalloproteins
  • Mice
  • Molecular Sequence Data
  • Protein Binding
  • Proto-Oncogene Proteins
  • Recombinant Proteins
  • TCF Transcription Factors
  • Transcription Factor 7-Like 1 Protein
  • Transcription Factors
  • Tumor Cells, Cultured
  • Zinc Fingers

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0027-8424