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Science 7 March 1975:
Vol. 187. no. 4179, pp. 836 - 838
DOI: 10.1126/science.1114327
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Articles

Science, Vol 187, Issue 4179, 836-838
Copyright © 1975 by American Association for the Advancement of Science

articles

Porphyrin triplet state probing the diffusion of oxygen in hemoglobin

B Alpert and L Lindqvist

Laser photolysis study of porphyrin-globin shows that the triplet state of the porphyrin is detectable by its light absorption and that it can be used to determine the rate of penetration of oxygen into the hemoglobin pocket in which the porphyrin is embedded. The oxygen penetration rate does not determine the binding rate of oxygen to iron in hemoglobin.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)