Imprecise excision of the progenitor insertion, resulting in a deletion of 473bp of genomic sequence (coordinates 3R:20019151..20018679 , release 5 genome). 12bp of the original insertion remain.
473 bp deletion resulting from the imprecise excision of P{GawB}NP2592. 12 bp (CATGATGAAATA) of the P element remain.
Homozygotes and jnjX1/jnjR1 animals show caffeine-dependent lethality.
Homozygotes, jnjR1/jnjX1 and jnjR1/Df(3R)Exel6198 animals show reduced survival after irradiation compared to controls.
Dramatically increased apoptotic cell death is observed in the eye discs of jnjR1/jnjX1 larvae after 12 hours exposure to caffeine.
BrdU incorporation in eye imaginal discs is abolished by hydroxyurea treatment in jnjR1/jnjX1 larvae, as occurs in wild type.