The effect of 2,3-diphosphoglycerate on the oxygen dissociation curve of human haemoglobin. 1977

P J Goodford, and F E Norrington, and R A Paterson, and R Wootton

1. Oxygen dissociation curves for concentrated human haemoglobin solutions (1.6 mmol dm-3 in haem) have been measured by mixing known quantities of oxy- and deoxyhaemoglobin solutions and measuring the resulting partial pressure of oxygen with an oxygen electrode. 2. Observations in the presence of 2,3-diphosphoglycerate support previous conclusions derived from experiments at low haemoglobin concentrations, the validity of which has been questioned. 3. The two affinity state model of Monod, Wyman & Changeux (1965) does not fully describe the actions of 2,3-diphosphoglycerate and a model in which this allosteric effector not only binds preferentially to the T state but also lowers the oxygen affinity of this state gives an improved fit to the data.

UI MeSH Term Description Entries
D008954 Models, Biological Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment. Biological Model,Biological Models,Model, Biological,Models, Biologic,Biologic Model,Biologic Models,Model, Biologic
D010100 Oxygen An element with atomic symbol O, atomic number 8, and atomic weight [15.99903; 15.99977]. It is the most abundant element on earth and essential for respiration. Dioxygen,Oxygen-16,Oxygen 16
D010313 Partial Pressure The pressure that would be exerted by one component of a mixture of gases if it were present alone in a container. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) Partial Pressures,Pressure, Partial,Pressures, Partial
D004163 Diphosphoglyceric Acids Glyceric acids where two of the hydroxyl groups have been replaced by phosphates. Bisphosphoglycerates,Acids, Diphosphoglyceric
D006454 Hemoglobins The oxygen-carrying proteins of ERYTHROCYTES. They are found in all vertebrates and some invertebrates. The number of globin subunits in the hemoglobin quaternary structure differs between species. Structures range from monomeric to a variety of multimeric arrangements. Eryhem,Ferrous Hemoglobin,Hemoglobin,Hemoglobin, Ferrous
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000495 Allosteric Site A site on an enzyme which upon binding of a modulator, causes the enzyme to undergo a conformational change that may alter its catalytic or binding properties. Allosteric Sites,Site, Allosteric,Sites, Allosteric

Related Publications

P J Goodford, and F E Norrington, and R A Paterson, and R Wootton
November 1992, International journal of clinical pharmacology, therapy, and toxicology,
P J Goodford, and F E Norrington, and R A Paterson, and R Wootton
May 1991, Nihon Kyobu Shikkan Gakkai zasshi,
P J Goodford, and F E Norrington, and R A Paterson, and R Wootton
January 1975, FEBS letters,
P J Goodford, and F E Norrington, and R A Paterson, and R Wootton
October 1969, Life sciences,
P J Goodford, and F E Norrington, and R A Paterson, and R Wootton
September 1974, The American journal of medicine,
P J Goodford, and F E Norrington, and R A Paterson, and R Wootton
January 1977, Proceedings of the European Dialysis and Transplant Association. European Dialysis and Transplant Association,
P J Goodford, and F E Norrington, and R A Paterson, and R Wootton
January 1984, Annales francaises d'anesthesie et de reanimation,
P J Goodford, and F E Norrington, and R A Paterson, and R Wootton
December 1993, Journal of the South African Veterinary Association,
P J Goodford, and F E Norrington, and R A Paterson, and R Wootton
August 1968, Nature,
Copied contents to your clipboard!