surface hydrophobicity , stability , solubility , and kinetics of polymerization were studied using hemoglobins with four different amino acids at the beta 6 position : hb a ( glu beta 6 ) , hb c ( lys beta 6 ) , hb machida ( gln beta 6 ) , and hb s ( val beta 6 ) .
C0061472
glu
C0017797
gln