P{JS} arose from P{hsP} by homologous recombination: only P-element sequences are retained. An essentially normal P-element is regenerated, including an essentially wild type P\T coding region.
construct_comment: Arose in vivo by internal deletion of the Hsp70 and white sequences in an insertion of the P{hsP} transposon. Deletion failed to affect either P end, thus the element is still autonomous.
construct_comment: Arose in vivo by internal deletion of the Hsp70 and white sequences in an insertion of the P{hsP} transposon. Deletion failed to affect either P end, thus the element is still autonomous.
construct_comment: A weak source of transposase, based on snw assay.