Abstract: Methods of generating cell lines with a sequence variation or copy number variation of a gene of interest, methods of use thereof, and cell lines with a sequence variation or copy number variation of a gene of interest are provided.

Abstract: Methods of generating cell lines with a sequence variation or copy number variation of a gene of interest, methods of use thereof, and cell lines with a sequence variation or copy number variation of a gene of interest are provided.

Abstract: Methods of generating cell lines with a sequence variation or copy number variation of a gene of interest, methods of use thereof, and cell lines with a sequence variation or copy number variation of a gene of interest are provided.

Abstract: Methods of generating cell lines with a sequence variation or copy number variation of a gene of interest, methods of use thereof, and cell lines with a sequence variation or copy number variation of a gene of interest are provided.

Abstract: Methods of generating cell lines with a sequence variation or copy number variation of a gene of interest, methods of use thereof, and cell lines with a sequence variation or copy number variation of a gene of interest are provided.

Abstract: Methods of generating cell lines with a sequence variation or copy number variation of a gene of interest, methods of use thereof, and cell lines with a sequence variation or copy number variation of a gene of interest are provided.

Abstract: rDNA promoter constructs useful in plasmids and vectors directing transcription of RNAs in a Pol I-specific manner constructed of four elements in a serial array: a first nucleotide sequence, capable of hybridizing under stringent conditions to an rDNA promoter element; a second nucleotide sequence, capable of hybridizing under stringent conditions to an internal ribosome entry signal (IRES); a third nucleotide sequence containing a coding region interest; a fourth nucleotide sequence containing a polyadenylation (polyA) signal sequence; a fifth rDNA enhancer element may be positioned upstream of the serial array. Also recombinant permissive cells and genetically engineered stable cell lines that contain the subject constructs.

Abstract: Isolated DNA or RNA molecules capable of hybridizing under stringent conditions to the myoD regulatory region, its proximal promoter and distal enhancer regulatory regions, and regulatory elements within the proximal and distal regions for binding basic helix-loop-helix proteins, MyoD, and proteins binding at SP1, AP1, CAAT, M-CAT, CArG, and MEF sites in DNA. DNA or RNA expression vectors for introducing a gene into a cell under the regulatory control of the myoD regulatory region. Transduced or transfected pre-muscle cells, myocytes, or myoblasts. Methods of inducing a muscle phenotype in a non-muscle cell, positively selecting for a cells expressing MyoD, and negatively selecting for cells expressing MyoD.