Linker generating a stop codon in all three reading frames has been inserted at nucleotide 508, amino acid 38, of the gbb coding region.
Included within a 6.8kb genomic fragment containing 3.7kb of sequence 5' to the transcription start site and 1.5kb 3' to the poly A site of gbb.
Included within a 6.8kb genomic fragment containing 3.7kb of sequence 5' to the transcription start site and 1.5kb 3' to the poly A site of gbb.