The following information accompanied stocks donated to the Bloomington Stock Center by Susan Haynes, National Institute of General Medical Sciences.
P{Hrb98DE+} is a genomic rescue construct for Hrb98DE in pP{CaSpeR} built by Cynthia Cass and Ann Beyer.
P{Hrb98DE+}2 is a homozygous viable and fertile, second chromosome insertion.
P{white-un4}Hrb98DE2 is a miniwhite-marked P element inserted approximately 24 nucleotides 3' of the 5' end of the downstream (3'-most) alternative 5' exon. It was isolated by Michael Goldberg and colleagues.
Hrb98DE2 is a loss-of-function Hrb98DE allele.
Hrb98DE1 is an EMS-induced point mutation that introduces a premature stop codon in the second coding (first common) exon. 
Hrb98DE3 was generated by imprecise excision of P{white-un4}Hrb98DE2. It is an intragenic deletion extending 3' from the insertion site into the intron upstream of the first common exon.