The effect of inositol hexaphosphate on the absorption spectra of alpha and beta chains in nitrosyl hemoglobin.
The spectral changes of nitrosyl hemoglobin on addition of inositol hexaphosphate were studied in hybrid-heme hemoglobins. The results showed that the decrease in absorption in the Soret region was mainly due to a spectral change in alpha chains, and that the tension on heme in the quaternary T structure was much stronger in alpha than in beta chains.
D006454:Hemoglobins; D007294:Inositol / Q000031:analogs & derivatives; D009603:Nitroso Compounds; D010446:Peptide Fragments; D010833:Phytic Acid; D013053:Spectrophotometry
D006454:Hemoglobins; D009603:Nitroso Compounds; D010446:Peptide Fragments; D007294:Inositol; D010833:Phytic Acid