Human cDNA clones encoding two different isoforms of the nerve terminal protein SNAP-25.
Two distinct cDNA sequences, corresponding to alternative isoforms of the human nerve terminal protein SNAP-25 (synaptosomal associated protein of 25 kDa), were cloned and characterized. Sequence analysis demonstrated that the two isoforms are generated by alternative splicing between two distinct but homologous exons 5, a and b each encoding 39 amino acids (aa). Although the two isoforms, SNAP-25a and SNAP-25b, differ by only 9 aa, this domain encodes the portion of the protein that is a substrate for post-translational fatty acylation, and therefore might be important for regulating subcellular localization and membrane targeting.
Bark
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Scripps Research Institute, Department of Neuropharmacology, La Jolla, CA 92037.
Wilson
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D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D002645:Chickens; D018076:DNA, Complementary / Q000737:chemistry / Q000235:genetics*; D006801:Humans; D008565:Membrane Proteins; D008969:Molecular Sequence Data; D009419:Nerve Tissue Proteins / Q000737:chemistry / Q000235:genetics*; D050825:Synaptosomal-Associated Protein 25
D018076:DNA, Complementary; D008565:Membrane Proteins; D009419:Nerve Tissue Proteins; C494208:SNAP25 protein, human; D050825:Synaptosomal-Associated Protein 25