A novel R198H mutation in the glucose-6-phosphate dehydrogenase gene in the tribal groups of the Nilgiris in Southern India.
Glucose-6-phosphate dehydrogenase (G6PD) deficiency is the most common red cell enzymopathy among humans. In India, G6PD Mediterranean, G6PD Orissa, and G6PD Kerala-Kalyan are the three common mutations which account almost 90% of G6PD deficiency. Here we describe G6PD Coimbra, an unreported variant from India, and a novel 593 G --> A mutation in exon 6 with an amino acid change of Arg 198 His, among the tribal groups of the Nilgiris in Southern India. Further, this novel mutation was structurally characterized and it was found that the mutation is located at the end of the coenzyme domain, which may cause enzyme instability.
Institute of Immunohaematology (Indian Council of Medical Research), 13th floor, New Multistoried Building, K.E.M. Hospital Campus, Parel, Mumbai, 400012, India.
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Chalvam
Institute of Immunohaematology (Indian Council of Medical Research), 13th floor, New Multistoried Building, K.E.M. Hospital Campus, Parel, Mumbai, 400012, India.
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Kedar
Institute of Immunohaematology (Indian Council of Medical Research), 13th floor, New Multistoried Building, K.E.M. Hospital Campus, Parel, Mumbai, 400012, India.
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Colah
Institute of Immunohaematology (Indian Council of Medical Research), 13th floor, New Multistoried Building, K.E.M. Hospital Campus, Parel, Mumbai, 400012, India.
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Ghosh
Institute of Immunohaematology (Indian Council of Medical Research), 13th floor, New Multistoried Building, K.E.M. Hospital Campus, Parel, Mumbai, 400012, India. drmalaybm@yahoo.com.
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Mukherjee
D004252:DNA Mutational Analysis; D004795:Enzyme Stability; D005954:Glucosephosphate Dehydrogenase / Q000235:genetics* / Q000378:metabolism; D005955:Glucosephosphate Dehydrogenase Deficiency / Q000235:genetics*; D006801:Humans; D007194:India / Q000453:epidemiology; D008297:Male; D009154:Mutation / Q000235:genetics*; D011487:Protein Conformation
D005954:Glucosephosphate Dehydrogenase