Biolegend, 699702, Purified anti-Lck Phospho (Tyr505) Antibody, 100μg

The Src family tyrosine kinase p56 Lck (Lck) is a non-receptor tyrosine kinase that is primarily expressed in T cells and NK cells. It plays a critical role in T cell selection and maturation within the thymus, and also in the function of mature T cells. Lck, which is constitutively bound to cytosolic domains of CD4 and CD8 surface receptors, plays an essential role in T cell receptor (TCR) signaling. Engagement of the TCR with peptide antigen-loaded MHC complex results in the recruitment of CD4- and CD8-bound Lck to the TCR/CD3 signaling complex. Lck then transphosphorylates TCR-gamma chains and CD3 subunits, thereby activating the TCR/CD3 signaling pathway and leading to the recruitment and subsequent phosphorylation of Zap70 by Lck. Lck also plays an important role in interleukin-2 signaling that regulates the T cell proliferative response. Phosphorylation of Lck by CSK at Tyrosine 505 negatively regulates Lck, and is proposed to generate a closed, inactive conformation of the protein.
100μg
Verified Reactivity: Human
Antibody Type: Monoclonal
Host Species: Mouse
Immunogen: Human Lck peptide phosphorylated at Tyr 505.
Formulation: Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
Preparation: The antibody was purified by affinity chromatography.
Concentration: 0.5 mg/ml
Storage & Handling: The antibody solution should be stored undiluted between 2°C and 8°C.
Application: ICFC - Quality tested
Recommended Usage: Each lot of this antibody is quality control tested by intracellular flow cytometry using our True-Phos™ Perm Buffer in Cell Suspensions Protocol. For flow cytometric staining, the suggested use of this reagent is ≤ 0.25 µg per million cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.
RRID: AB_2801134 (BioLegend Cat. No. 699701) AB_2801135 (BioLegend Cat. No. 699702)
Structure: 509 and 539 amino acid isoforms with predicted molecular weights of 58 and 61 kD, respectively. Contains N-terminal domain with myristylation and palmitoylation sites, a kinase domain, and SH2 and SH3 domains that mediate protein-protein interactions between Lck and other proteins.
Distribution: T cells
Function: T cell receptor signaling
Interaction: AXL, CD2, CD4, CD5, CD8, CD44, CD45, CD122, PI4K, VAV1, RASA1, FYB, CDK1, RAF1, ZAP70, SYK, RUNX3
Cell Type: T cells
Biology Area: Cell Biology, Signal Transduction
Molecular Family: Phospho-Proteins, Protein Kinases/Phosphatase
Antigen References: Phillipsen L, et al. 2017. Sci Signal. 10:eaaf4736. Moogk D, et al. 2016. J Immunol. 197:644. Klammt C, et al. 2015. Nat Immunol. 16:961. Cancer Genome Atlas Network. 2015. Cell. 161:1681. Casas J, et al. 2014. Nat Commun. 5:5624 McNeill L, et al. 2007. Immunnity. 27:425. Lefebvre DC, et al. 2003. Biochim Biophys Acta. 1650:40. Kabouridis PS. 2003. Biochem J. 371:907.
Gene ID: 3932
UniProt: View information about Lck Phospho Tyr505 on UniProt.org
Clone: A17013A
Regulatory Status: RUO
Other Names: Leukocyte C-terminal Src kinase, Protein YT16, p56-LCK, T cell-specific protein-tyrosine kinase
Isotype: Mouse IgG1, κ