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Papain-like cysteine proteases.

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The name "cysteine protease" refers to the protease's nucleophilic cysteine residue that forms a covalent bond with the carbonyl group of the scissile peptide bond in substrates. The papain-like cysteine proteases, classified as the "C1 family" are the most predominant cysteine proteases. These

Isolation of elastase-like and chymotrypsin-like neutral proteases from human granulocytes.

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Sequential activation of ICE-like and CPP32-like proteases during Fas-mediated apoptosis.

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Binding of Fas ligand or an agonistic anti-Fas antibody induces apoptosis in Fas-bearing cells. The interleukin-1Beta-converting enzyme (ICE) is a cysteine protease that is involved in apoptosis induced by various stimuli, including Fas-mediated apoptosis. Several ICE homologues have been

Chymotrypsin-like and trypsin-like protease activities in the sea urchin (Hemicentrotus pulcherrimus) egg.

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Proteolytic activities in extracts of sea urchin eggs were examined using SDS (sodium dodecyl sulphate)-polyacrylamide gels. In the unfertilized eggs, proteases were detected as bands corresponding to the molecular weights of 40 kD and 26 kD on the gelatin gel, and 35 kD and 30 kD on the casein gel.

A Phytophthora infestans cystatin-like protein targets a novel tomato papain-like apoplastic protease.

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There is emerging evidence that the proteolytic machinery of plants plays important roles in defense against pathogens. The oomycete pathogen Phytophthora infestans, the agent of the devastating late blight disease of tomato (Lycopersicon esculentum) and potato (Solanum tuberosum), has evolved an

Tricorn-like proteases in bacteria.

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The tricorn protease is an archaeal protease that forms massive proteasome-like capsids with a hollow chamber. beta-Propeller and PDZ domains are thought to play a role in substrate selection. By analysis of predicted proteins from novel bacterial genome sequences, we have identified four new

Subtilisin-like proteases in nematodes.

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Cleavage by subtilisin-like proteases (subtilases) is an essential step in post-translational processing of proteins found in organisms ranging from yeast to mammals. Our knowledge of the diversity of this protease family in nematodes is aided by the rapid increase in sequence information,

Limulus factor C. An endotoxin-sensitive serine protease zymogen with a mosaic structure of complement-like, epidermal growth factor-like, and lectin-like domains.

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Factor C is an endotoxin-sensitive, intracellular serine protease zymogen which initiates the coagulation cascade system in the limulus hemolymph. We have determined the entire amino acid sequence of factor C using recombinant DNA technique. The zymogen consisted of 994 amino acid residues with a

Insulin-like activity of proteases. II. A protease possessing insulin-like activity in pronase.

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ICE-like proteases in apoptosis.

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The discovery of structural and functional similarities between the product of the nematode cell-death gene ced-3 and mammalian interleukin-1 beta-converting enzyme (ICE) is providing important insights into the molecular mechanism of apoptosis. This article summarizes the current knowledge of ICE

Subtilases: subtilisin-like serine proteases.

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Murine coronavirus ubiquitin-like domain is important for papain-like protease stability and viral pathogenesis.

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Ubiquitin-like domains (Ubls) now are recognized as common elements adjacent to viral and cellular proteases; however, their function is unclear. Structural studies of the papain-like protease (PLP) domains of coronaviruses (CoVs) revealed an adjacent Ubl domain in severe acute respiratory syndrome

CHARACTERIZATION OF TRYPSIN-LIKE AND CHYMOTRYPSIN-LIKE SERINE PROTEASES FROM MIDGUT OF Mythimna separata Walker.

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Two cDNA sequences encoding a trypsin-like and a chymotrypsin-like serine protease (MsT and MsCT, GenBank accession Nos. KP730443 and KP730444, respectively) were cloned from midgut of oriental armyworm, Mythimna separata Walker. Multiple alignments revealed that the deduced amino acid sequences of

Thrombin-like inhibitory action of trypsin and trypsin-like proteases on human platelet adenylate cyclase.

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The effects of trypsin, acrosin and a recently described trypsin-like protease from bovine sperm were studied on adenylate cyclase activity in membranes of human platelets. These proteases caused an immediate decrease in adenylate cyclase activity, which was independent of the platelet membrane

Human gingival proteases. I: Extraction and preliminary characterization of trypsin-like and elastase-like enzymes.

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