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Medical Definition of Rapoport-Luebering shunt
1. Part of the glycolytic pathway characteristic of human erythrocytes in which 2,3-bisphosphoglycerate (2,3-P2Gri) is formed as an intermediate between 1,3-P2Gri and 3-phosphoglycerate; 2,3-P2Gri is an important regulator of the affinity of haemoglobin for oxygen. (05 Mar 2000)