Abstract

The nucleotide sequence analysis of cloned cDNA for VIP precursor from rat cerebral cortex reveals that the precursor contains both rat VIP and PHI-27. The deduced primary structure of rat VIP is identical with human VIP. The amino acid sequence of rat PHI-27 differs by 4 amino acids from human PHM-27. When each VIP precursor is divided functionally into 6 domains, the amino acid sequence homology between rat and human precursors ranges from 69 to 100%. In contrast, any domain exhibits an essentially equal degree of nucleotide sequence homology. Rat VIP Rat PHI-27 VIP precursor VIP precursor mRNA Human PHM-27 Sequence homology

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