CHIT1 Gene Summary [Human]

Chitotriosidase is secreted by activated human macrophages and is markedly elevated in plasma of Gaucher disease patients. The expression of chitotriosidase occurs only at a late stage of differentiation of monocytes to activated macrophages in culture. Human macrophages can synthesize a functional chitotriosidase, a highly conserved enzyme with a strongly regulated expression. This enzyme may play a role in the degradation of chitin-containing pathogens. Several alternatively spliced transcript variants have been described for this gene. [provided by RefSeq, Jan 2012]

Details

Type
Processed Transcript
Official Symbol
CHIT1
Official Name
chitinase 1 [Source:HGNC Symbol;Acc:HGNC:1936]
Ensembl ID
ENSG00000133063
Bio databases IDs NCBI: 1118 Ensembl: ENSG00000133063
Aliases chitinase 1, chitotriosidase
Synonyms 2300002L19Rik, CHI3, CHIT, CHITD, chitinase 1
Species
Human, Homo sapiens
OrthologiesMouseRat

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in human CHIT1 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • chitinase
  • Glycosyl hydrolases family 18
  • Chitin binding Peritrophin-A domain
  • glycosidase
  • GH18_chitinase-like
  • endochitinase
  • enzyme
  • protein binding
  • chitin binding
  • Glyco_18 domain

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
  • chitotriosidase deficiency
  • COVID-19
  • colorectal cancer
  • psoriasis
  • primary pulmonary hypertension
  • delayed hypersensitive reaction
  • cutaneous sarcoidosis
  • chronic obstructive pulmonary disease
  • septic shock
  • lepromatous leprosy
regulated by
  • adavosertib
  • filgrastim
  • dexamethasone
  • fluticasone propionate
  • STING1
  • MAVS
  • eliglustat
  • NR4A2
  • RIGI
  • EPO
regulates
  • chitin
  • polysaccharide
role in cell
  • function

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Extracellular Space
  • secretory granule lumen
  • organelle lumens
  • lysosome

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human CHIT1 gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • response to bacterium
  • immune response
  • polysaccharide catabolic process
  • chitin catabolic process
  • polysaccharide digestion

Cellular Component

Where in the cell the gene product is active
  • extracellular space
  • specific granule lumen
  • extracellular region
  • lysosome

Molecular Function

What the gene product does at the molecular level
  • chitinase activity
  • chitin binding
  • hydrolase activity, hydrolyzing O-glycosyl compounds
  • endochitinase activity

Gene-Specific Assays for Results You Can Trust

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