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Many mammals can digest chitin and the specific chitinase levels in vertebrate species are adapted to their feeding behaviours. [18] Certain fish are able to digest chitin. [19] Chitinases have been isolated from the stomachs of mammals, including humans. [20] Chitinase activity can also be detected in human blood [21] [22] and possibly ...
The chitinases hydrolyse chitin oligosaccharides. Another chitinase II member is the novel gene Chitinase domain-containing protein 1. The family also includes various glycoproteins from mammals; cartilage glycoprotein and the oviduct-specific glycoproteins are two examples.
Hofmann hydrolyzed chitin using a crude preparation of the enzyme chitinase, which he obtained from the snail Helix pomatia. [7] [8] [9] Chitin is a modified polysaccharide that contains nitrogen; it is synthesized from units of N-acetyl-D-glucosamine (to be precise, 2-(acetylamino)-2-deoxy-D-glucose).
Chitinase domain-containing protein 1 (CHID1) is a highly conserved protein of unknown function located on the short (p) arm of chromosome 11 near the telomere. [5] The protein has 27 introns, which allows for many isoforms of this gene. It has several aliases, the most common of which is Stabilin-1 interacting chitinase-like protein (SI-CLP).
The size of the gizzard is adaptable in these shore birds, becoming atrophied when soft food items like worms are consumed and increasing in size and muscularity following prolonged consumption of snails, cockles or mussels. The production of chitinase for the hydrolysis of chitin is important for birds that consume mollusks. [13]
N-acetyl-β-d-glucosaminidase (EC 3.2.1.30; EC 3.2.1.52) is a mesophilic hydrolase that specifically hydrolyzes N-acetyl-glucosides. The enzyme is found across a wide variety of marine and terrestrial creatures with the primary function of breaking down oligosaccharides in the presence of water.
In molecular biology, the chitinase A N-terminal domain is found at the N-terminus of a number of bacterial chitinases and similar viral proteins. It is organised into a fibronectin III module domain-like fold, comprising only beta strands. Its function is not known, but it may be involved in interaction with the enzyme substrate, chitin.
Chitinase-3-like protein 1 (CHI3L1), also known as YKL-40, is a secreted glycoprotein that is approximately 40kDa in size that in humans is encoded by the CHI3L1 gene. [ 5 ] [ 6 ] [ 7 ] The name YKL-40 is derived from the three N-terminal amino acids present on the secreted form and its molecular mass .