Affinity Chromatography of Tryptases: Design, Synthesis and Characterization of a Novel Matrix‐Bound Bivalent Inhibitor
Affinity Chromatography of Tryptases: Design, Synthesis and Characterization of a Novel Matrix‐Bound Bivalent Inhibitor
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类胰蛋白酶的亲和色谱:新型基质结合二价抑制剂的设计、合成和表征
DOI:
10.1002/cbic.200400217
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发表时间:
2005
期刊:
影响因子:
3.2
通讯作者:
Sommerhoff
中科院分区:
文献类型:
--
作者:
Schaschke;Gabrijelcic-Geiger;Dominik;Sommerhoff
β‐Tryptases are mast cell‐derived serine proteases that are enzymatically active in the form of an oligomer consisting of four subunits each with trypsin‐like activity. The active‐site clefts, which are directed toward the central pore of the tetramer, form spatial arrays of four negatively charged S1 binding pockets. Therefore, dibasic inhibitors of appropriate geometry can bind in a bivalent fashion to neighboring subunits. We have recently identified a potent bivalent inhibitor (Ki=18 nM), based on the bifunctional scaffold cyclo‐(‐D‐Asp‐L‐Asp‐) and the arginine mimeticdl‐3‐aminomethyl‐phenylalanine methyl ester as a ligand for S1 pockets that takes advantage of the this unique tetrameric geometry. To generate an affinity matrix, the bivalent ligand was modified and immobilized on a Sepharose matrix by use of the PEG derivative Jeffamine ED 900 as spacer. This matrix selectively recognizes and binds β‐tryptase from crude protein mixtures and thus is useful as a geometry‐driven means of isolating and purifying human mast cell tryptases.
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影响因子:
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作者:
G. W. Wong;S. Yasuda;M. Madhusudhan;Lixin Li;Yi Yang;S. Krilis;A. Sali;R. Stevens
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R. Stevens
影响因子:
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作者:
N. Schaschke;A. Dominik;G. Matschiner;C. Sommerhoff
通讯作者:
C. Sommerhoff
DOI:
--
发表时间:
1999
影响因子:
11.1
作者:
L. Burgess;B. Newhouse;P. Ibrahim;J. Rizzi;M. Kashem;A. Hartman;B. Brandhuber;C. Wright;D. Thomson;G. Vigers;K. Koch
通讯作者:
K. Koch
DOI:
--
发表时间:
2000
期刊:
Biochimica et Biophysica Acta
影响因子:
--
作者:
C. Sommerhoff;W. Bode;G. Matschiner;A. Bergner;H. Fritz
通讯作者:
H. Fritz