3.4.22.16: cathepsin H
This is an abbreviated version!
For detailed information about cathepsin H, go to the full flat file.
Reaction
Hydrolysis of proteins, acting as an aminopeptidase (notably, cleaving Arg-/- bonds) as well as an endopeptidase =
Synonyms
aleurain, aleuron thiol protease, alpha-N-benzoyl-arginine 2-naphthylamide hydrolase, alpha-N-benzoylarginine-beta-naphthylamide hydrolase, Cat H, CatB3, CatH, cathepsin B3, cathepsin Ba, cathepsin H, cathepsin H-like cysteine proteinase, CTSH, procathepsin H
ECTree
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Crystallization
Crystallization on EC 3.4.22.16 - cathepsin H
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comparison of structure and primary sequences of 5 papain, actinidin, cathepsins B and H and stem bromelain yields high degree of similarity
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purified wild-type and C26S mutant procathepsin H, sitting drop vapor diffusion method, 5.7 mg/ml protein, crystal growth from 0.1 M Na2HPO4/citric acid, pH 4.2, and 2.0 M (NH4)2SO4, 1 week, 20°C, method optimization, X-ray diffraction structure determination and analysis at 2.0 A and 1.66 A resolution, respectively, molecular replacement and modeling
general and secondary structure, structure of active-site cleft, mechanistic conclusions drawn from crystallographic study, mini-chain attached to active-site cleft of enzyme body via disulfide bond, structural comparison reveals high similarity to actinidin
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