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Large CAG/CTG repeat templates produced by PCR, usefulness for the DIRECT method of cloning genes with CAG/CTG repeat expansions.

ABSTRACT: We report here a simple method for generating large CAG/CTG repeat sequences. We have applied this method to clone the genomic sequence containing the CAG/CTG repeat and its upstream intronic sequence present in spinocerebellar ataxia type 3 or Machado-Joseph disease (SCA3/MJD) by a modified DIRECT method. With these modifications we have considerably simplified the generation of the repeat probe used to screen for anomalous bands. This method will facilitate the molecular approach to other genetic disorders where expansions of repeat sequences could be involved.

SUBMITTER: Pujana MA

PROVIDER: S-EPMC147394 | biostudies-other | 1998 Mar

REPOSITORIES: biostudies-other

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Large CAG/CTG repeat templates produced by PCR, usefulness for the DIRECT method of cloning genes with CAG/CTG repeat expansions.

Pujana M A MA Volpini V V Estivill X X

Nucleic acids research 19980301 5

We report here a simple method for generating large CAG/CTG repeat sequences. We have applied this method to clone the genomic sequence containing the CAG/CTG repeat and its upstream intronic sequence present in spinocerebellar ataxia type 3 or Machado-Joseph disease (SCA3/MJD) by a modified DIRECT method. With these modifications we have considerably simplified the generation of the repeat probe used to screen for anomalous bands. This method will facilitate the molecular approach to other gene ...[more]

PMID: 9469848

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