title: Correct transcription of an immunoglobulin kappa gene requires an upstream fragment containing conserved sequence elements.
abstract: Transcription of the immunoglobulin kappa light-chain genes depends on the presence of a TATA box upstream of the leader gene segment and is regulated by an enhancer sequence in the large intron. In studying a rearranged mouse kappa light-chain gene we have now found that sequences between--90 and--160 base pairs (bp) upstream of the coding region are essential for correct transcription in gene transfer experiments. This region contains the deca- and pentadecanucleotide sequences TNATTTGCAT and TGCAGCCTGTGNCCAG, which we call dc and pd, respectively. Sequences related to dc and pd were found upstream of all human and mouse kappa-chain variable region (Vk) genes, upstream of lambda-chain variable region (V lambda) genes, and within the mouse heavy-chain enhancer. An inverted and complementary form of the dc element (ATGCAAATNA, called cd) occurs upstream of all heavy-chain variable region (VH) genes. The newly defined sequences may be involved in the control of immunoglobulin gene transcription.
mesh_terms: D000818:Animals; D001483:Base Sequence; D002471:Cell Transformation, Neoplastic; D004262:DNA Restriction Enzymes; D004274:DNA, Recombinant / Q000032:analysis; D005796:Genes; D006801:Humans; D007127:Immunoglobulin Constant Regions / Q000235:genetics; D007144:Immunoglobulin J-Chains / Q000235:genetics; D007147:Immunoglobulin Light Chains / Q000235:genetics*; D007135:Immunoglobulin Variable Region / Q000235:genetics; D007145:Immunoglobulin kappa-Chains / Q000235:genetics*; D051379:Mice; D013045:Species Specificity; D014158:Transcription, Genetic
chemical_list: D004274:DNA, Recombinant; D007127:Immunoglobulin Constant Regions; D007144:Immunoglobulin J-Chains; D007147:Immunoglobulin Light Chains; D007135:Immunoglobulin Variable Region; D007145:Immunoglobulin kappa-Chains; D004262:DNA Restriction Enzymes