Open AccessAvian cellular homolog of the qin oncogene.
Author(s) -
Hwai Wen Chang,
Jian Li,
Doris Kretzschmar,
Peter K. Vogt
Publication year - 1995
Publication title -
proceedings of the national academy of sciences of the united states of america
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.011
H-Index - 771
eISSN - 1091-6490
pISSN - 0027-8424
DOI - 10.1073/pnas.92.2.447
Subject(s) - biology , coding region , complementary dna , virus , microbiology and biotechnology , viral structural protein , amino acid , gene , peptide sequence , virology , genetics , viral entry , viral replication
We have isolated chicken cDNA clones of the c-qin gene, the cellular counterpart of the v-qin (Chinese for "avian") oncogene of avian sarcoma virus 31. There are several differences between the cellular and the viral qin sequences: (i) two nonconservative amino acid substitutions in the Qin coding region; (ii) a truncation in the carboxyl terminus of the viral protein due to a premature stop codon; (iii) a partial Gag sequence fused to the amino terminus of viral Qin; and (iv) eight cell-coded amino acids which link the cellular Qin coding domain to the viral Gag domain. We have also characterized the expression pattern of c-qin in chicken embryos by in situ hybridization and by Northern blot analysis. c-qin is abundantly expressed in the developing brain, and this expression is restricted to the telencephalon of early embryos.