Record Information
Version1.0
StatusDetected and Quantified
Creation Date2020-10-27 23:40:48 UTC
Update Date2024-10-13 08:50:47 UTC
Metabolite IDMMDBc0000235
Metabolite Identification
Common NameChitin
DescriptionChitin is one of the main components in the cell walls of fungi, the exoskeletons of insects and other arthropods (such as crustaceans) as well as fish and frogs. It is a polysaccharide that is constructed from units of acetylglucosamine (more completely, N-acetyl-D-glucose-2-amine). These are linked together in beta-1,4 fashion (in a similar manner to the glucose units which form cellulose). In effect, chitin may be described as cellulose with one hydroxyl group on each monomer replaced by an acetylamine group. This allows for increased hydrogen bonding between adjacent polymers, giving the polymer increased strength. Chitin is the second most abundant polysaccharide in the world (after cellulose). Chitinases break down chitin and are a part of the defence mechanism of mammals against chitin-containing parasites in lower life forms. Under certain circumstances, chitin can act as an allergen. Research using murine models has shown that chitin is a size-dependent microbial-associated molecular pattern (MAMP) that can induce an immunological response via pattern recognition receptors. Medium-sized chitin micro-particles (CMPs) have been shown to induce inflammation, while small-sized CMPs reduce inflammation. Additionally, mammalian chitinases may play a key role in mediating the T-helper 2 cell-driven inflammatory response that is commonly associated with asthma. The high prevalence of asthma among people working with chitinous substances, such as crabs and fungi, suggests that chitin might be an allergen playing a significant role in the development of asthma.
Structure
Synonyms
ValueSource
(beta)-N,N',n''-triacetyl chitotrioseChEBI
beta-D-GlcNAc-(1->4)-beta-D-glcnac-(1->4)-beta-D-glcnacChEBI
beta-N,N',n''-triacetylchitotrioseChEBI
GlcNAcb1-4glcnacb1-4glcnacbChEBI
GlcNAcbeta1-4glcnacbeta1-4glcnacbetaChEBI
N,N',n''-triacetyl chitotriose beta-anomerChEBI
N-Acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-beta-D-glucosamineChEBI
(b)-N,N',n''-triacetyl chitotrioseGenerator
(Β)-N,n',n''-triacetyl chitotrioseGenerator
b-D-GlcNAc-(1->4)-b-D-glcnac-(1->4)-b-D-glcnacGenerator
Β-D-glcnac-(1->4)-β-D-glcnac-(1->4)-β-D-glcnacGenerator
b-N,N',n''-triacetylchitotrioseGenerator
Β-N,n',n''-triacetylchitotrioseGenerator
N,N',n''-triacetyl chitotriose b-anomerGenerator
N,N',n''-triacetyl chitotriose β-anomerGenerator
N-Acetyl-b-D-glucosaminyl-(1->4)-N-acetyl-b-D-glucosaminyl-(1->4)-N-acetyl-b-D-glucosamineGenerator
N-Acetyl-β-D-glucosaminyl-(1->4)-N-acetyl-β-D-glucosaminyl-(1->4)-N-acetyl-β-D-glucosamineGenerator
b-D-GlcpNAc-(1->4)-b-D-glcpnac-(1->4)-b-D-glcpnacHMDB
Β-D-glcpnac-(1->4)-β-D-glcpnac-(1->4)-β-D-glcpnacHMDB
Molecular FormulaC24H41N3O16
Average Mass627.5928
Monoisotopic Mass627.248682279
IUPAC NameNot Available
Traditional NameNot Available
CAS Registry Number1398-61-4
SMILES
CC(=O)N[C@H]1[C@H](O)O[C@H](CO)[C@@H](O[C@@H]2O[C@H](CO)[C@@H](O[C@@H]3O[C@H](CO)[C@@H](O)[C@H](O)[C@H]3NC(C)=O)[C@H](O)[C@H]2NC(C)=O)[C@@H]1O
InChI Identifier
InChI=1S/C24H41N3O16/c1-7(31)25-13-18(36)20(11(5-29)39-22(13)38)42-24-15(27-9(3)33)19(37)21(12(6-30)41-24)43-23-14(26-8(2)32)17(35)16(34)10(4-28)40-23/h10-24,28-30,34-38H,4-6H2,1-3H3,(H,25,31)(H,26,32)(H,27,33)/t10-,11-,12-,13-,14-,15-,16-,17-,18-,19-,20-,21-,22-,23+,24+/m1/s1
InChI KeyWZZVUHWLNMNWLW-VFCSDQTKSA-N