Xy. Wang et al., GBAS, A NOVEL GENE ENCODING A PROTEIN WITH TYROSINE PHOSPHORYLATION SITES AND A TRANSMEMBRANE DOMAIN, IS CO-AMPLIFIED WITH EGFR, Genomics, 49(3), 1998, pp. 448-451
Amplification of the epidermal growth factor receptor gene (EGFR) has
been noted in several forms of human cancer. Although various aspects
of this gene alteration have been extensively studied, little is known
about the genetic content of the chromosome 7p12 region that can be c
o-amplified with this cellular oncogene. Here we report the identifica
tion of and coding sequence for a novel gene, GBAS, that is localized
to this region and was found to be amplified in 2 of 12 tumors as well
as in 2 of 3 cell Lines with EGFR amplification. The GBAS transcript
is 2.2 kb in length and contains an 858-bp open reading frame. The ass
ociated amino acid sequence has identifiable signal peptide and transm
embrane motifs, as well as two tyrosine phosphorylation sites that sug
gest that the encoded protein may be a substrate for tyrosine kinases.
(C) 1998 Academic Press.