A monomeric form of pyruvate kinase in human pyruvate kinase deficiency.

A monomeric form of pyruvate kinase in human pyruvate kinase deficiency.

A mutant pyruvate kinase (ATP:pyruvate 2-O-phosphotransferase, EC 2.7.1.40) from human erythrocytes which is easily separated into monomers and dimers by gel chromatography is described. Tht mutant enzyme shows almost the same pH optimum and thermostability as normal enzyme, but has a decreased stability on shaking with air, a decreased Km for phosphoenolpyruvate and a loss of allosteric proper...

Prevalence of Pyruvate Kinase Deficiency among the Newborns (Shiraz-Iran)

Background: The frequency of pyruvate kinase (PK) deficiency, an autosomal recessive defect, is approximately 3 per 10,000 individuals in Shiraz and surrounding areas, and is increased due to high consanguinity marriage frequency. The purpose of this study is to obtain data on the frequency and spectrum of gene mutation of PK in newborns, from Shiraz and surrounding areas. Materials and Methods...

Pyruvate kinase deficiency.

prevalence of pyruvate kinase deficiency among the newborns (shiraz-iran)

background: the frequency of pyruvate kinase (pk) deficiency, an autosomal recessive defect, is approximately 3 per 10,000 individuals in shiraz and surrounding areas, and is increased due to high consanguinity marriage frequency. the purpose of this study is to obtain data on the frequency and spectrum of gene mutation of pk in newborns, from shiraz and surrounding areas. materials and methods...

Erythrocyte pyruvate kinase deficiency among anemic individuals in Bandar Abbas, Iran

Introduction: In addition to G6PD deficiency, human erythrocyte pyruvate kinase (PK-R) deficiency is one of the most common causes of non-spherocytic hemolytic anemia. Clinical severity of this disorder is not the same in homozygote form of this disease and ranges from mild to chronic and anemia; so it has a wide variation. Severely effected individuals require blood transfusions or splenectomy...