The Amino-Acid Sequence of αA- and β-Chains from the Major Hemoglobin Component of American Flamingo(Phoenicopterus ruber niber)

Abstract
The complete amino-acid sequence of .alpha.A- and .beta.-chains from the major Hb component (HbA) of American flamingo (P. r. ruber) is presented. The minor component (HbD) with .alpha.D-chains was detected in similar amounts (25%) as in chicken and pheasant Hb. The comparison of American flamingo and graylag goose (Anser anser) Hb shows that .alpha.A-chains differ by 22 exchanges and .beta.-chains by only 4 exchanges. Two substitutions modify .alpha.1.beta.1-contacts. Amino-acid replacements between American flamingo and other bird Hb are discussed.

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