Cloning and interspecies comparisons of three newt (Notophthalmus viridescens) fibroblast growth factor receptor sequences.
We report the nucleotide sequences of two fibroblast growth factor receptor (FGFR) cDNAs, FGFR1 and FGFR3, from the newt species Notophthalmus viridescens. These two cDNA sequences and a previously published newt FGFR cDNA, FGFR2, were used to derive the amino acid sequences which were then compared with their homologues from other species. This comparison shows that the intracellular tyrosine kinase domain is highly conserved across the species examined with the second half of the domain slightly more conserved than the first half. The 3' portion of the carboxyl terminal tail is not very highly conserved. The comparison of the extracellular portion of FGFR2 shows a high degree of conservation among the Ig-like domains and a low degree of conservation in the region that links the third Ig-like domain with the transmembrane domain.
Poulin
M L
ML
Department of Internal Medicine, Ohio State University, Davis Medical Research Center, Columbus 43210, USA.
Botelho
M J
MJ
Chiu
I M
IM
D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D003001:Cloning, Molecular; D017124:Conserved Sequence; D018076:DNA, Complementary; D005346:Fibroblast Growth Factors / Q000378:metabolism*; D008969:Molecular Sequence Data; D009673:Notophthalmus viridescens / Q000378:metabolism*; D011505:Protein-Tyrosine Kinases / Q000378:metabolism; D020794:Receptor Protein-Tyrosine Kinases / Q000235:genetics; D051496:Receptor, Fibroblast Growth Factor, Type 1; D051497:Receptor, Fibroblast Growth Factor, Type 2; D051498:Receptor, Fibroblast Growth Factor, Type 3; D017468:Receptors, Fibroblast Growth Factor / Q000235:genetics*; D016415:Sequence Alignment; D017422:Sequence Analysis, DNA; D017385:Sequence Homology
D018076:DNA, Complementary; D017468:Receptors, Fibroblast Growth Factor; D005346:Fibroblast Growth Factors; D011505:Protein-Tyrosine Kinases; D020794:Receptor Protein-Tyrosine Kinases; D051496:Receptor, Fibroblast Growth Factor, Type 1; D051497:Receptor, Fibroblast Growth Factor, Type 2; D051498:Receptor, Fibroblast Growth Factor, Type 3