Related fibroblast growth factor receptor genes exist in the human genome

Proc Natl Acad Sci U S A. 1990 Oct;87(20):8180-4. doi: 10.1073/pnas.87.20.8180.

Abstract

We have isolated, from a human tumor cDNA library, a gene encoding a putative receptor-like protein-tyrosine kinase that we call TK14. The amino acid sequence of the TK14 protein is closely related to the available partial sequence of the mouse protein bek, and more distantly related to the sequences of a chicken basic fibroblast growth factor receptor (73% sequence homology) and the apparent human equivalent of this receptor, the FLG protein (encoded by the fms-like tyrosine kinase gene). Overexpression of the TK14 protein by transfection of COS-1 cells with the corresponding cDNA in a simian virus 40-based expression vector leads to the appearance of new cell-surface binding sites for both acidic and basic fibroblast growth factors. This has been demonstrated by specific binding assays and chemical cross-linking experiments using 125I-labeled growth factors. It appears, therefore, that the human genome contains at least two distinct genes, for TK14 and FLG, that code for related fibroblast growth factor receptors.

Publication types

  • Comparative Study

MeSH terms

  • Amino Acid Sequence
  • Animals
  • Base Sequence
  • Cell Line
  • Cloning, Molecular
  • DNA / genetics
  • DNA / isolation & purification
  • Fibroblast Growth Factors / metabolism*
  • Filaggrin Proteins
  • Gene Library
  • Genome, Human*
  • Humans
  • Kinetics
  • Molecular Sequence Data
  • Oligonucleotide Probes
  • Receptors, Cell Surface / genetics*
  • Receptors, Cell Surface / metabolism
  • Receptors, Fibroblast Growth Factor
  • Sequence Homology, Nucleic Acid
  • Transfection

Substances

  • FLG protein, human
  • Filaggrin Proteins
  • Oligonucleotide Probes
  • Receptors, Cell Surface
  • Receptors, Fibroblast Growth Factor
  • Fibroblast Growth Factors
  • DNA

Associated data

  • GENBANK/M37715
  • GENBANK/M55614