Hemoglobin varient

No abstract text is available yet for this article.

Studies have been performed on a 12-yr-old Chinese girl with compensatory erythrocytosis due to the presence of hemoglobin Bethesda comprising about 45% of the red cell hemoglobin. Her parents and three siblings were normal. The oxygen affinity of her blood was markedly increased: under physiological conditions (pH 7.40, 37 degrees C). P(50) was 12.8 mm Hg (normal = 26.5 mm Hg). The red cell 2,3-diphosphoglycerate (2.3-DPG) level was normal. The abnormal hemoglobin could not be separated from hemoglobin A by zone electrophoresis at pH 8...

An introduced species, the house sparrow (Passer domesticus), and two Australian native species, the welcome swallow (Hirundo tahitica neoxena) and the fairy martin (Petrochelidon ariel), have moderately low levels of protein polymorphism compared with domesticated or semi-wild 'managed' species of birds. Genetically varient proteins in these birds include transferrin, esterase, phosphoglucomutase, NADP-dependent isocitrate dehydrogenases, phosphogluconate dehydrogenase (decarboxylating) and glucose-6-phosphate dehydrogenase...