Gene Information
Gene NameCHI3L1
OrganismHomo sapiens (Human)
Gene Length383
Protein NamesChitinase-3-like protein 1 (39 kDa synovial protein) (Cartilage glycoprotein 39) (CGP-39) (GP-39) (hCGP-39) (YKL-40)
Target NameNA
Target TypeNA
Gene Age244 ( ENSG00000133048 )
Evolutionary StageCellular_organisms
AlphaFoldDBP36222
Gene CardCHI3L1
Uniprot IDP36222
PfamPF00704
In ASDno
Allosteric Predictionyes (0.328034054)
Ortholog in AnimalsAlpaca_ CHI3L1 ( ortholog_one2one )
Dog_ CHI3L1 ( ortholog_one2one )
GuineaPig_ CHI3L1 ( ortholog_one2one )
Macaque_ CHI3L1 ( ortholog_one2one )
Mouse_ Chil1 ( ortholog_one2one )
Pig_ CHI3L1 ( ortholog_one2one )
Rat_ Chi3l1 ( ortholog_one2one )
Rabbit_ CHI3L1 ( ortholog_one2one )
OhnologsNA
ParalogsCHIA, CHID1, CHIT1, CTBS, OVGP1, CHI3L2
TissueNA
Tissue SpecificityPresent in activated macrophages, articular chondrocytes, synovial cells as well as in liver. Very low or undetectable expression in non-inflammatory colon. Undetectable in muscle tissues, lung, pancreas, mononuclear cells, or fibroblasts. {ECO:0000269|PubMed:16472595, ECO:0000269|PubMed:9492324}.
Pharmacological Animal ModelsNA
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 1HJV  (X-ray  2.75A  1HJW  (X-ray  2.30A  1HJX  (X-ray  1.85A  1NWR  (X-ray  2.70A  1NWS  (X-ray  2.70A  1NWT  (X-ray  2.50A  1NWU  (X-ray  2.20A  7CJ2  (X-ray  2.70A 
DBSNP rs880633  rs1049407 
Subcellular location [CC]Secreted, extracellular space {ECO:0000269|PubMed:9492324}. Cytoplasm {ECO:0000250}. Cytoplasm, perinuclear region {ECO:0000250}. Endoplasmic reticulum {ECO:0000250}.
Mouse PG classificationLPG
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