کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8472159 | 1550303 | 2007 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Interactions between mannose-binding lectin and MASPs during complement activation by the lectin pathway
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کلمات کلیدی
EGFCRDMBLCCPMASPInnate immunity - ایمنی ذاتیProtein interactions - تعاملات پروتئینCUB domain - دامنه CUBcarbohydrate-recognition domain - دامنه شناخت کربوهیدراتepidermal growth factor - عامل رشد اپیدرمیMannose-binding lectin - لکتین اتصال دهنده مانوزComplement - متممlectin pathway - مسیر لکتینMBL-associated serine protease - پروتئاز serine مرتبط با MBLcomplement control protein - پروتئین کنترل مکملImmunodeficiency - کمبود ایمنی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
بیولوژی سلول
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The lectin pathway of complement performs a key role within the immune system by recognising pathogens through patterns of sugar moieties displayed on their cell surfaces and neutralising them via an antibody-independent reaction cascade. While particularly important during early childhood before the adaptive immune system is established, or when adaptive immunity is compromised, it has a protective function throughout life, neutralising invading pathogens directly and helping to stimulate and direct an effective immune response. Complement activation is initiated when complexes comprising mannose-binding lectin (MBL) or serum ficolins and MBL-associated serine protease-2 (MASP-2) bind to pathogens. Binding induces conformational changes in these complexes, leading to autoactivation of the MASPs, which in turn activate the downstream reaction cascade. A major goal in complement research is to understand the molecular events that trigger complement activation. Over the last few years, structure-function studies have improved our knowledge of the way in which MBL binds to MASPs by defining the portions of these proteins that interact and by solving the structures of key protein fragments. In this review, I will summarise the main findings of these studies and describe current theories to explain how the components combine to initiate the reaction cascade.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Immunobiology - Volume 212, Issues 4â5, 26 June 2007, Pages 289-299
Journal: Immunobiology - Volume 212, Issues 4â5, 26 June 2007, Pages 289-299
نویسندگان
Russell Wallis,