PREPARATION OF RNA PROBE OF MINISATELLITE REGION IN HUMAN DNA AND ITS PRACTICAL USE(Ⅰ)-CONSTRUCTION OF SUB-CLONE OF pGEM-4Z-MYO / 中国法医学杂志

By means of DNA recombinant techniques, the fragment of MYO minisatellite DNA probe 0b-tained from plasmid pUC19 - MYO was inserted into plamsid pGEM - 4Z containing RNA poly-merase promotor, thus a sub-clone pGEM- 4Z-MYO was constructed then. It provided the RNAprobe for the DNA fingerprinting and laid a foundation for raising the sensitivity of detecting the poly-morphism of the minisatel1ite DNA.

MYO minisatellite DNA probe and sub—cloning of MYO fragment / 中国免疫学杂志

The initial study of the tumour DNA fingerprints using MYO minisatellite DNA probe wascarried out,and then,by means of DNA recombinant techniques,the fragment of MYO min-isatellite DNA probe obtained from plasmid pUC19-MYO was inserted into plasmid pGEM-4Z containing RNA polymerase promotor,thus a sub-clone refferred as pGEM-4Z-MYOwas constucted.That made an offer of the conditions of preparing RNA probe in order to in-cerase the sensitivities of DNA fingerprinting and laid a foundation for raised the efficiency of de-tecting the polymorphism of the minisatellite DNA.