different 3 ' coding exons in the rat calcitonin gene are used to generate distinct mrnas encoding either the hormone calcitonin in thyroidal c-cells or a new neuropeptide referred to as calcitonin gene-related peptide in neuronal tissue , indicating the rna processing regulation is one strategy used in tissue-specific regulation of gene expression in the brain .
C0027895
neuropeptide
C0006669
calcitonin gene-related peptide