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Pig apolipoprotein (apo) A-IV cDNA was cloned, characterized and compared to the human ortholog. Mature porcine apo A-IV consists of 362 amino acids and displays a 75.6% sequence identity with human protein. Pig apo A-IV is the smallest reported mammalian apo A-IV because it lacks the repeated motifs of glutamine and glutamic acid at the carboxyl terminus. A phylogenic tree of apo A-IV mammalian proteins reveals that porcine apo A-IV is more closely related to humans and primates than to rodents. This protein is highly hydrophobic and is mainly associated with lipoproteins.


Journal article



Publication Date





157 - 164


Amino Acid Sequence, Animals, Apolipoproteins A, Base Sequence, Cloning, Molecular, DNA, Complementary, Hydrophobic and Hydrophilic Interactions, Molecular Sequence Data, Phylogeny, Sequence Alignment, Sequence Analysis, DNA, Sequence Homology, Amino Acid, Swine