Biomaterial Database

[Properties of chitinolytic enzymes from the hepatopancreas of the red king crab (Paralithodes camtschaticus)]. 2007

V Iu Novikov, and V A Mukhin, and K S Rysakova

Our study confirms the presence of chitinolytic, chitosanolytic, and deacetylase activities in the hepatopancreas of the red king crab, related to the specific diet of this species. The maximum rate of chitin/chitosan hydrolysis by an enzyme preparation from crab hepatopancreas occurs at 36.5-37.0 degrees C. Two pH optimums have been found for the enzymatic reaction under mildly alkaline and acidic conditions for both exo- and endochitinase activities. The enzyme preparation is most affine to partly deacetylated chitin with an acetylation degree within 40-50%.

UI	MeSH Term	Description	Entries
D002688	Chitinases	Glycoside hydrolases that break down glycosidic bonds in CHITIN. They are important for insect and worm morphogenesis and plant defense against pathogens. Human chitinases may play a role in the etiology of allergies and asthma.	Chitinase,Endochitinase
D006358	Hot Temperature	Presence of warmth or heat or a temperature notably higher than an accustomed norm.	Heat,Hot Temperatures,Temperature, Hot,Temperatures, Hot
D006863	Hydrogen-Ion Concentration	The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH	pH,Concentration, Hydrogen-Ion,Concentrations, Hydrogen-Ion,Hydrogen Ion Concentration,Hydrogen-Ion Concentrations
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D043143	Hepatopancreas	A primitive form of digestive gland found in marine ARTHROPODS, that contains cells similar to those found in the mammalian liver (HEPATOCYTES), and the PANCREAS.
D033381	Anomura	An infraorder of CRUSTACEA, in the order DECAPODA comprising the hermit crabs and characterized by a small fifth pair of legs.	Hermit Crab,Pagurus,Paralithodes,Hermit Crabs,Anomuras,Crab, Hermit,Crabs, Hermit,Paralithode