the oxygen equilibrium curve of hemoglobin a carboxymethylated on its four n-terminal residues [ 0.5 mm as tetramer in 50 mm [ bis ( 2-hydroxyethyl ) amino ] tris ( hydroxymethyl ) methane ( bis-tris ) , ph 7.5 , 37 degrees c ] had a p50 value of 30 mmhg ( hill coefficient n = 2.8 , alkaline bohr value = 0.4 ) compared to a p50 of 9 mmhg for unmodified hemoglobin under the same conditions ( n = 2.5 , alkaline bohr value = 0.5 ) .
C0019016
hemoglobin a
C0019046
hemoglobin