Animal-Free CHI3L1 Protein, Human (His)

The CHI3L1 protein is a binding lectin that lacks chitinase activity. CHI3L1 contributes to tissue remodeling, cellular adaptation to environmental changes, and T helper type 2 inflammatory responses. CHI3L1 also controls hyperoxia-induced injury, inflammation, and epithelial cell apoptosis. Animal-Free CHI3L1 Protein, Human (His) is the recombinant human-derived animal-FreeCHI3L1 protein, expressed by E. coli , with C-His labeled tag. The total length of Animal-Free CHI3L1 Protein, Human (His) is 362 a.a., with molecular weight of ~41.43 kDa.

Chitinase-3-like protein 1 (CHI3L1) is a carbohydrate-binding lectin with a specific affinity for chitin, although it lacks chitinase activity. Its main role extends beyond chitin degradation, as it is implicated in tissue remodeling and cellular responses to environmental changes. CHI3L1 plays a crucial role in T-helper cell type 2 (Th2) inflammatory responses and IL-13-induced inflammation, influencing allergen sensitization, inflammatory cell apoptosis, dendritic cell accumulation, and the differentiation of M2 macrophages. Additionally, it facilitates the invasion of pathogenic enteric bacteria into colonic mucosa and lymphoid organs. CHI3L1 is involved in the activation of the AKT1 signaling pathway, leading to IL8 production in colonic epithelial cells. Furthermore, it regulates antibacterial responses in the lungs, contributing to macrophage bacterial killing, controlling bacterial dissemination, and enhancing host tolerance. In lung tissues, CHI3L1 also plays a role in regulating hyperoxia-induced injury, inflammation, and epithelial apoptosis. Structurally, CHI3L1 functions as a monomer.

Human

E. coli

C-His

P36222 (Y22-T383)

1116  [NCBI]

MYKLVCYYTSWSQYREGDGSCFPDALDRFLCTHIIYSFANISNDHIDTWEWNDVTLYGMLNTLKNRNPNLKTLLSVGGWNFGSQRFSKIASNTQSRRTFIKSVPPFLRTHGFDGLDLAWLYPGRRDKQHFTTLIKEMKAEFIKEAQPGKKQLLLSAALSAGKVTIDSSYDIAKISQHLDFISIMTYDFHGAWRGTTGHHSPLFRGQEDASPDRFSNTDYAVGYMLRLGAPASKLVMGIPTFGRSFTLASSETGVGAPISGPGIPGRFTKEAGTLAYYEICDFLRGATVHRILGQQVPYATKGNQWVGYDDQESVKSKVQYLKDRQLAGAMVWALDLDDFQGSFCGQDLRFPLTNAIKDALAAT

Approximately 41.43 kDa

Greater than 95% as determined by reducing SDS-PAGE.

Lyophilized powder.

Lyophilized from a solution containing 1X PBS, pH 7.4, trehalose.

<0.1 EU per 1 μg of the protein by the LAL method.

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Room temperature in continental US; may vary elsewhere.