کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2089260 1545783 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Purification of IgD from human serum - A novel application of recombinant M. catarrhalis IgD-binding protein (MID)
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیوتکنولوژی یا زیست‌فناوری
پیش نمایش صفحه اول مقاله
Purification of IgD from human serum - A novel application of recombinant M. catarrhalis IgD-binding protein (MID)
چکیده انگلیسی
Moraxella catarrhalis IgD-binding protein (MID) is a multimeric outer membrane protein belonging to the family of autotransporters. The IgD-binding domain of MID is located between amino acids MID 962-1200 and binds to amino acids 198-224 of the IgD CH1 region. In the present study, we describe a method to purify IgD from serum with high levels of IgD using a two-step affinity chromatography process. The first step involves depletion of MID-specific antibodies of all classes from serum using the non-IgD-binding fragment MID1000-1200. This step is followed by selective capture of IgD with MID962-1200. Furthermore, we demonstrate that the eluted IgD is pure, intact and functional for use in downstream applications. Our approach reduces the non-specificity commonly associated with lectin-based IgD purification regimes that rely on glycosylation of the IgD molecule.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Immunological Methods - Volume 317, Issues 1–2, 20 December 2006, Pages 31-37
نویسندگان
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