Sera of IgA nephropathy patients contain a heterogeneous population of relatively cationic alpha-heavy chains

Sera of IgA nephropathy (IgAN) patients and normal subjects were analysed by two-dimensional (2-D) gel electrophoresis. Densitometric analysis of the 2-D gels of IgAN patients and normal subjects revealed that their protein maps were comparable. There was no shift of pI values in the major alpha-hea...

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Bibliographic Details
Main Authors: Shuib, A.S., Chua, C.T., Hashim, Onn Haji
Format: Article
Language:English
Published: 1998
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Online Access:http://eprints.um.edu.my/3446/1/Sera_of_IgA_nephropathy_patients_contain_a_heterogeneous_population_of_relatively_cationic_alpha-heavy_chains.pdf
http://eprints.um.edu.my/3446/
http://content.karger.com/ProdukteDB/produkte.asp?doi=10.1159/000044938
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Summary:Sera of IgA nephropathy (IgAN) patients and normal subjects were analysed by two-dimensional (2-D) gel electrophoresis. Densitometric analysis of the 2-D gels of IgAN patients and normal subjects revealed that their protein maps were comparable. There was no shift of pI values in the major alpha-heavy chain spots. However, the volume of the alpha-heavy chain bands were differently distributed. Distribution was significantly lower at the anionic region in IgAN patients (mean anionic:cationic ratio of 1.184 +/- 0.311) as compared to normal healthy controls (mean anionic:cationic ratio of 2.139 +/- 0.538). Our data are in support of the previously reported findings that IgA1 of IgAN patients were lacking in sialic acid residues.