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Oncogene. 1990 Apr;5(4):519-24.

Nucleotide sequence and expression of a novel human receptor-type tyrosine kinase gene (flt) closely related to the fms family.

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  • 1Department of Genetics, University of Tokyo, Japan.

Abstract

A new human gene encoding a receptor-type tyrosine kinase was isolated by a weak cross-hybridization with v-ros oncogene. A cDNA of about 7.7 kb carried a 4.2 kb open reading frame, and the predicted amino acid sequence of 1338 residues contained extracellular, transmembrane and tyrosine kinase domains. Although its extracellular domain is approximately 220 amino acids longer than those of the products of the fms family, i.e. c-fms, c-kit and platelet-derived growth factor receptor genes, the overall structure including cysteine motifs in its extracellular domain and a long peptide insertion in its tyrosine kinase domain indicates that this new gene is closely related to the fms family. Consequently, the gene was designated as flt (fms-like tyrosine kinase) gene. The expression of the flt gene was strongly suppressed in most of the tumor cell lines examined so far, whereas this mRNA was expressed in a variety of normal tissues of adult rat.

PMID:
2158038
[PubMed - indexed for MEDLINE]
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