Abstract: |
The neuronal-specific Elav-like proteins (HuD, Hel-N, and HuC) contain three RNP-type concensus motifs and bind to AU-rich elements. We have identified and cloned a fourth member of this family (HuR) that is expressed in a wide variety of cell types. The purified recombinant protein binds avidly to the AU-rich element in c-fos and interleukin-3 mRNAs. In the case of the c-fos AU-rich element, HuR binds to a core element of 27 nucleotides that contain AUUUA, AUUUUA, and AUUUUUA motifs. Mutational analysis has shown that all three AU motifs are required for maximal binding. |
Keywords: |
gene mutation; human cell; gene expression regulation; molecular cloning; cloning, molecular; rna-binding proteins; amino acid sequence; molecular sequence data; sequence homology, amino acid; messenger rna; rna, messenger; sequence alignment; nucleotide sequence; genes, myc; base sequence; binding sites; dna primers; antigens, surface; dna, complementary; protein synthesis regulation; interleukin-3; humans; human; priority journal; article; genes, fos
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