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Key Documents

SRP8040

Sigma-Aldrich

LAG-3 (human): FC (human)

recombinant, expressed in CHO cells, >99% (SDS-PAGE)

Synonyme(s) :

FDC Protein, Lymphocyte activation gene-3, PC cell-derived growth factor

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About This Item

Code UNSPSC :
12352200
Nomenclature NACRES :
NA.32

Source biologique

human

Produit recombinant

expressed in CHO cells

Pureté

>99% (SDS-PAGE)

Forme

liquid

Poids mol.

~80 kDa by SDS-PAGE

Conditionnement

pkg of 50 μg

Concentration

≥0.2 mg/mL

Impuretés

<0.1 EU/μg endotoxin, tested

Couleur

clear

Numéro d'accès UniProt

P18627

Conditions d'expédition

wet ice

Température de stockage

−20°C

Informations sur le gène

human ... LAG3(3902)

Description générale

LAG3 (lymphocyte activation gene 3) is an inhibitory CD4 (cluster of differentiation)-related molecule, and is expressed by activated CD4+ and CD8+ T cells.

Actions biochimiques/physiologiques

LAG3 (lymphocyte activation gene 3) is a negative regulator of T-cell proliferation where it suppresses T-cell receptor (TCR)-mediated calcium fluxes and modulates the memory T-cell pool size. It is a CD4 (cluster of differentiation) homolog that functions as a ligand for MHC (major histocompatibility complex) II. Membrane expression of LAG3 modulates the suppressive function of Tregs (T-regulatory) both in vivo and in vitro. HIV-1 (human immunodeficiency virus) infection results in significant increase in LAG3 peripheral blood and lymph node expression, which is exhibited on both CD4+ and CD8+ T cells, and this is linked with disease progression. In melanoma, this protein is responsible for TLR (Toll-like receptor)-independent activation of plasmacytoid dendritic cells (pDCs) at tumor sites, which is partially implicated in driving an immune-suppressive environment.

Forme physique

Solution in PBS.

Autres remarques

The sequence coding for the 4 extracellular Ig-like domains of human LAG-3 (D1-D4) is fused to the Fc portion of human IgG1.

Code de la classe de stockage

12 - Non Combustible Liquids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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Consulter la Bibliothèque de documents

Tumor-infiltrating NY-ESO-1-specific CD8+ T cells are negatively regulated by LAG-3 and PD-1 in human ovarian cancer.
Matsuzaki J et al
Proceedings of the National Academy of Sciences of the USA, 107(17), 7875-7880 (2010)
Chiara Camisaschi et al.
The Journal of investigative dermatology, 134(7), 1893-1902 (2014-01-21)
Plasmacytoid dendritic cells (pDCs) at tumor sites are often tolerogenic. Although pDCs initiate innate and adaptive immunity upon Toll-like receptor (TLR) triggering by pathogens, TLR-independent signals may be responsible for pDC activation and immune suppression in the tumor inflammatory environment.
Ching-Tai Huang et al.
Immunity, 21(4), 503-513 (2004-10-16)
Regulatory T cells (Tregs) limit autoimmunity but also attenuate the magnitude of antipathogen and antitumor immunity. Understanding the mechanism of Treg function and therapeutic manipulation of Tregs in vivo requires identification of Treg-selective receptors. A comparative analysis of gene expression
Xiaoling Tian et al.
Journal of immunology (Baltimore, Md. : 1950), 194(8), 3873-3882 (2015-03-18)
T cells develop functional defects during HIV-1 infection, partially due to the upregulation of inhibitory receptors such as programmed death-1 (PD-1) and CTLA-4. However, the role of lymphocyte activation gene-3 (LAG-3; CD223), also known as an inhibitory receptor, in HIV

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