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Activity-based proteomics

Activity-based proteomics, or activity-based protein profiling (ABPP) is a chemoproteomic strategy that employs modular probes to directly assess the functional state of enzymes within complex proteomes. Unlike expression-based proteomics, which measures protein abundance, ABPP provides information about catalytic activity, thereby enabling researchers…

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Activity-based proteomics

Nodes49
Edges48
Triples20
Avg. degree1.96
Density0.040816
Components1

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Important terminology

enzyme abpp active enzymes activity protein probes abps used proteins functional probe proteomics profiling activity-based mass spectrometry target enabling inactive

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
the serine hydrolasesinstance ofproduce radical intermediates that form covalent crosslinks with nearby residues in the enzyme active site.With classes of enzymes0.80text
metalloproteases that often interact with endogenous inhibitors or that exist as inactive zymogensinstance ofproduce radical intermediates that form covalent crosslinks with nearby residues in the enzyme active site.With classes of enzymes0.80text
ABPP offers a valuable advantage over traditional techniques that rely on abundance rather than activityinstance ofproduce radical intermediates that form covalent crosslinks with nearby residues in the enzyme active site.With classes of enzymes0.80text
masked warheadsinstance ofStrategies0.80text
which become activated only in the presence of a target enzymeinstance ofStrategies0.80text
have been developed to improve specificity.LinkerBetween the reactive groupinstance ofStrategies0.80text
the taginstance ofStrategies0.80text
ABPs often include a linker / spacer / biorecognition elementinstance ofStrategies0.80text
which can tune probe solubilityinstance ofStrategies0.80text
steric accessibilityinstance ofStrategies0.80text
and substrate mimicryinstance ofStrategies0.80text
biotininstance ofor an affinity label0.80text

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