Dear Kathy, P1587 is allelic to P1707 and maps at 62E6-7 (not at 66 as indicated): we checked it both by in situ hybridization and by complementation studies. Actually, we have cloned the corresponding gene and are about to publish it. Hope this is useful for you. With best wishes, Marie Marie Meister UPR 9022 du CNRS, IBMC 15 rue Rene Descartes 67084 Strasbourg cedex