the contribution of the alpha 20 residues in intermolecular contacts present in hemoglobin s fibers was investigated with mixtures of hb le lamentin alpha 2 ( 20 ) his -- -- gln beta 2a and of hemoglobin s alpha 2a beta 2 ( 6 ) glu -- -- val and with artificial hybrids alpha 2 ( 20 ) his -- -- gln beta 2 ( 6 ) glu -- -- val .
C0017797
gln
C0061472
glu