Deletion of part of the exon that is specific to the PGRP-LB PD isoform. This results in the amino acids TSGPTSLA being absent from near the N-terminal end of the mutant PD protein.
Deletion of region encoding amino acids TSGPTSLA from isoform PGRP-LB-RD.
PGRP-LBPDΔZ19b adults infected with Erwinia carotovora carotovora by oral feeding exhibit a significantly increased immune response (immune deficiency pathway activation) in fat body compared to controls.