CpG Mutations in the Reactive Site of Human C1¯ Inhibitor
نویسندگان
چکیده
منابع مشابه
CpG mutations in the reactive site of human C1 inhibitor.
C1 inhibitor plays an important role in the regulation of vascular permeability through its ability to inactivate enzymes which release polypeptide kinins. Dysfunctional C1 inhibitor molecules are present in the plasma of affected members of the Da and Ri hereditary angioneurotic edema kindreds. We constructed genomic libraries from Da and Ri patient DNAs which had been cleaved with BclI to gen...
متن کاملPrimary structure of the reactive site of human C1-inhibitor.
Human C1-inhibitor (C1-Inh) forms an equimolar complex with complement proteinase C1s that is resistant to dissociation by sodium dodecyl sulfate. The formation of this stable complex results in the cleavage of a peptide bond near the carboxyl terminus of the inhibitor and, whereas the bulk of C1-Inh remains covalently bound to the light chain of C1s, the postcomplex inhibitor peptide can be is...
متن کاملC1 inhibitor gene sequence facilitates frameshift mutations.
Mutations disrupting the function or production of C1 inhibitor cause the disease hereditary angioneurotic edema. Patient mutations identified an imperfect inverted repeat sequence that was postulated to play a mechanistic role in the mutations. To test this hypothesis, the inverted repeat was cloned into the chloramphenicol acetyltransferase gene in pBR325 and its mutation rate was studied in ...
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15 صفحه اولExpression of functional human C1 inhibitor in COS cells.
Full length human C1 inhibitor cDNA was cloned into a vector suitable for transient expression in COS-1 cells. Transfected COS cells secreted an immunoreactive protein of Mr approximately 110,000 that appeared to be functionally equivalent to the plasma-derived protein as established by the following criteria: 1) ability to form sodium dodecyl sulfate-stable complexes with C1s, factor XIIa, and...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1989
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)94031-7