Deletion extending from -456bp to +165bp, eliminating the transcription start site and first 55 amino acid residues of the B52 open reading frame. Generated by imprecise excision of P{lacW}B52s2249. Deletion does not affect expression of Hrb87F.
Inferred boundaries of a deletion resulting from the imprecise excision of P{lacW}B52s2249. The deletion is reported to extend from -456 to 165 bp, removing the transcription start site and the first 55 amino acids. Given that there is an intron within the coding sequence for the first 55 aa, the deletion was mapped to the codon for amino acid 55 wihich is 465 bases from the ATG start codon.