Imprecise excision of the P{SUPor-P} element in P{SUPor-P}Hmg-2^KG05183 has resulted in a deletion. In the spliced form of Xbp1, the last 278 codons (at the 3' region of the coding sequence) are deleted and 4 new codons (GITL) are present before the introduction of a nonsense stop codon. In the unspliced form, the last 87 codons are deleted and 5 new codons (ELPCS) are followed by a nonsense stop codon.

Xbp1^k13803