Exosite Determinants of Serpin Specificity
نویسندگان
چکیده
منابع مشابه
Exosite determinants of serpin specificity.
Serpins form an enormous superfamily of 40-60-kDa proteins found in almost all types of organisms, including humans. Most are one-use suicide substrate serine and cysteine proteinase inhibitors that have evolved to finely regulate complex proteolytic pathways, such as blood coagulation, fibrinolysis, and inflammation. Despite distinct functions for each serpin, there is much redundancy in the p...
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Background: α1PDX and serpin B8 are proprotein convertase (PC) inhibitors whose specificity and selectivity for PCs are not understood. Results: α1PDX-serpin B8 and furin-PC chimeras revealed new serpin and protease (re)active-site and exosite determinants of reactivity. Conclusion: α1PDX reactive-site and exosite determinants may be exploited for engineering specificity and selectivity for inh...
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We have analyzed the sequence-specific interaction between the Escherichia coli tryptophan (Trp) repressor and its operator using challenge phage vectors. These phages, derivatives of Salmonella phage P22 that have substitutions of synthetic, symmetric trp operators for the P22 rant operator, provide a genetic assay for DNA binding in vivo. Phages carrying operators that retain the determinants...
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The SR (Ser-Arg) proteins are a family of nuclear factors that play multiple important roles in splicing of mRNA precursors in metazoan organisms, functioning in both constitutive and regulated splicing. Certain of these functions are redundant, such that any single SR proteins will suffice, but other functions are unique and are specific to a given family member. A number of studies during the...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 2009
ISSN: 0021-9258
DOI: 10.1074/jbc.r800064200