Abstract
We have cloned a receptor tyrosine kinase cDNA, designated fetal liver kinase 1 (Flk-1), from mouse cell populations enriched for hematopoietic stem and progenitor cells. Sequence analysis of this clone reveals strong homology to the c-Kit subfamily of receptor kinases, and in particular to the Flt gene product. Chromosomal mapping shows that the Flk-1, Kit, and Pdgfra genes are closely linked. Flk-1 mRNA is expressed in primitive and more mature hematopoietic cells as well as in a wide variety of nonhematopoietic tissues.
MeSH Terms
Amino Acid Sequence
Animals
Base Sequence
Chromosome Mapping
Crosses, Genetic
DNA/genetics,isolation & purification
Female
Fetus
Gene Expression
Genetic Linkage
Hematopoietic Stem Cells/enzymology
Liver/physiology
Male
Mice
Mice, Inbred C57BL
Molecular Sequence Data
Multigene Family
Muridae
Polymerase Chain Reaction
Protein-Tyrosine Kinases/genetics
Proto-Oncogene Proteins/genetics
Proto-Oncogene Proteins c-kit
Proto-Oncogenes
RNA, Messenger/genetics
Receptors, Cell Surface/genetics
Sequence Homology, Nucleic Acid
Chemicals
Proto-Oncogene Proteins
RNA, Messenger
Receptors, Cell Surface
DNA
Protein-Tyrosine Kinases
Proto-Oncogene Proteins c-kit
Authors & Affiliations
6 authors, click to expand affiliations / ORCID
Matthews W
Department of Molecular Biology, Princeton University, NJ 08544.
Jordan C T
Gavin M
Jenkins N A
Copeland N G
Lemischka I R
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