August 3, 2004 Ronna Hertzano DIG in situ hybridization probes Pou4f3 probe: A 484 bp segment of the unique coding sequence of the Pou4f3 gene (NM_138945 – nucleotides 13-496) was cloned into the pGEM T-easy vector (Promega). For clone#3 Probe Antisense Sense Cut with SpeI SalI NdeI SacI BstXI NsiI AatII SacII Transcribe with T7 SP6 Gfi1 probe: A 957 bp segment of the 3' untranslated region of the Gfi1 gene (NM_010278 – nucleotides 1781-2738) was cloned into the pGEM T-easy vector (Promega). Probe Antisense Sense Cut with AatII SacII NcoI SpeI PstI SalI NdeI SacI BstXI NsiI Transcribe with SP6 T7 August 3, 2004 Ronna Hertzano Lhx3 probe: (clone #7) Probe is based on the 3'UTR of L38248. this 3'UTR is common to Lhx3a and Lhx3b. isoform specific primers can not be made, as the Lhx3b specific region spans 195bp and the Lhx3a specific region spans 146bp. The probe is 647bp long and corresponds to nucleic acids 1428-2074. Probe Antisense Sense Cut with ApaI AatII NcoI SacII SpeI PstI SalI NdeI SacI BstXI NsiI Transcribe with SP6 T7 August 3, 2004 Ronna Hertzano