Open AccessGenetic and physical analysis of the chicken tk gene.
Author(s) -
Gary F. Merrill,
Richard M. Harland,
Mark Groudine,
Steven L. McKnight
Publication year - 1984
Publication title -
molecular and cellular biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.14
H-Index - 327
eISSN - 1067-8824
pISSN - 0270-7306
DOI - 10.1128/mcb.4.9.1769
Subject(s) - biology , complementary dna , gene , genetics , nucleic acid sequence , microbiology and biotechnology , genomic dna , peptide sequence , sequence analysis
Several aspects of the structure of the chicken thymidine kinase gene (tk) have been resolved as a result of genetic experiments and nucleotide sequencing. Deletion mapping established the locations of two functional boundaries in a region thought to correspond to the 5' terminus of the gene. One such boundary coincides with a transcriptional promoter, and the other coincides with the translation start codon of the chicken tk polypeptide. Similar deletion mapping assays identified a functional boundary at the 3' terminus of the gene. DNA sequence analysis confirms the prediction that this 3' region encodes the carboxyl terminus of the tk polypeptide. A recombinant cDNA clone complementary to genomic tk sequences was isolated. A comparison between genomic and cDNA sequences reveals the locations of six intervening sequences and allows prediction of the complete amino acid sequence of the chicken tk polypeptide.