[The sequence of alpha-chains from pig and llama hemoglobins (aspects on the respiration in highlands) (author's transl)].

The primary structure of the alpha-chains from pig (Suidae) and llama (Lama lama, Camelidae) hemoglobins is given. They differ in the exchange of 22 and 25 amino acid residues, respectively, compared to human alpha-chains. Some aspects and the physiological significance of these results are discussed.