Amino acid replacement: T40A.
Amino acid replacement: S124A.
Scer\GAL4VP16.nanos.UTR/mtrmT40A.S124A.UASp fails to rescue mtrm126
Expression of mtrmT40A.S124A.Scer\UAS.P\T under the control of Scer\GAL4nos.UTR.T:Hsim\VP16 does not rescue the high level of achiasmate X and 4th chromosome nondisjunction seen in mtrm126/+ females.