(redirected from proteinases)
Also found in: Thesaurus, Medical, Encyclopedia.
Related to proteinases: peptidase, proteolytic enzymes, Proteases


 (prōt′n-ās′, -āz′, prō′tē-nās′, -nāz′)
An endopeptidase, such as pepsin, trypsin, or papain.


(ˈprəʊtɪˌneɪs; -ˌneɪz)
(Biochemistry) another name for endopeptidase


(ˈproʊ tiˌneɪs, -ˌneɪz, -ti ɪ-)

any of a group of enzymes that are capable of hydrolyzing proteins.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.proteinase - any enzyme that catalyzes the splitting of proteins into smaller peptide fractions and amino acids by a process known as proteolysis
caspase - any of a group of proteases that mediate apoptosis
enzyme - any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions
angiotensin converting enzyme, angiotensin-converting enzyme, ACE - proteolytic enzyme that converts angiotensin I into angiotensin II
plasminogen activator, urokinase - protease produced in the kidney that converts plasminogen to plasmin and so initiates fibrinolysis
renin - a proteolytic enzyme secreted by the kidneys; catalyzes the formation of angiotensin and thus affects blood pressure
References in periodicals archive ?
But in others, "it's an aberrant response induced by extreme sensitivity to the proteinases.
Poplawska hopes to elucidate the effect that two common gene mutations, PiF and PiZ, have on inhibiting these neutrophil serine proteinases (NSP).
Among the topics are lectins with varying specificity and biological activity from marine bivalves, biological activities of proteins and marine-derived peptides from byproducts and seaweeds, producing lactobacilli proteinases for manufacturing bioactive peptides, antimicrobial activities of marine protein and peptides, the impact of fish-elastin hydrolysate on the skin and blood vessels, applying marine-derived peptides and proteins in the food industry, and the biological activity and application of marine-derived collagen.
These proteinase inhibitors are widespread in the plant kingdom, their physiological roles including the regulation of endogenous proteinases during seed dormancy, the reserve protein mobilization, and the protection against the proteolytic enzymes of parasites and insects[12].
Extracellular BGPT1-10P and BGPT1-78 proteinases have a molecular mass of about 29 kDa.
Their main functions are thought to be in plant defense and the regulation of endogenous proteinases (Moslov, 2001; Birk, 2003); but they may also function as storage proteins (Shewry, 2003).
Some subjects discussed are molecular chaperones in normal and pathologic states, genetic polymorphism of immunoproteasome and its functional value, and genetic polymorphism of alpha-1-inhibitor of proteinases and its clinical value.
The mRNA of collagen type I and type III were increased to a similar extent by vitamin C and that of three post-translational enzymes, the carboxy- and amino-procollagen proteinases and lysyloxidase similarly increased.
Several researchers have studied the effects of high hydrostatic pressurization treatment on intramuscular proteinases.
Other proteinases such as collagenases are not generally feasible therapies for aesthetic dermatology, due to their persistent degradation of surrounding tissue that may create safety concerns or require use of sub-potent dosing regimens.
Individual acid aspartic proteinases (SAPs) 1-6 of Candida albicans are not essential for invasion and colonization of the gastrointestinal tract in mice.
Enzymes that catalyze protein break-down are called proteinases.