LAT antibody (AA 29-217)

Catalog No. ABIN7873396

The Rabbit Polyclonal anti-LAT antibody (ABIN7873396) specifically detects LAT in WB, ELISA, IHC and FACS. The antibody is reactive with Mouse and Rat samples.

Quick Overview for LAT antibody (AA 29-217) (ABIN7873396)

Target: LAT (Linker For Activation of T Cells (LAT))

Reactivity: Mouse, Rat

Host: Rabbit

Clonality: Polyclonal

Conjugate: This LAT antibody is un-conjugated

Application: Western Blotting (WB), ELISA, Immunohistochemistry (IHC), Flow Cytometry (FACS)

Product Details anti-LAT Antibody

Binding Specificity: AA 29-217

Purpose: Lat Antibody / Linker for activation of T cells

Purification: Immunogen affinity purified

Immunogen: E.coli-derived mouse Lat recombinant protein (Position: R29-E217) was used as the immunogen for the Lat antibody.

Isotype: IgG

Application Details

Application Notes: Optimal dilution of the Lat antibody should be determined by the researcher.

Restrictions: For Research Use only

Handling

Format: Lyophilized

Reconstitution: Adding 0.2 mL of distilled water will yield a concentration of 500 μg/mL

Buffer: Each vial contains 4 mg Trehalose, 0.9 mg NaCl, 0.2 mg Na2HPO4.

Storage: 4 °C,-20 °C

Storage Comment: After reconstitution, the Lat antibody can be stored for up to one month at 4oC. For long-term, aliquot and store at -20oC. Avoid repeated freezing and thawing.

Target Details for LAT

Target: LAT (Linker For Activation of T Cells (LAT))

Alternative Name: Lat

Background: LAT antibody detects Linker for activation of T cells, a critical transmembrane adaptor protein that functions as a central scaffold in T-cell receptor (TCR) signaling. The UniProt recommended name is Linker for activation of T cells (LAT). This protein coordinates the assembly of multiprotein complexes that mediate T-cell activation, proliferation, and immune response regulation. LAT is indispensable for coupling TCR engagement to downstream signaling cascades that drive cytokine production and effector cell differentiation.

Functionally, LAT antibody identifies a 233-amino-acid membrane protein that localizes to lipid rafts of the plasma membrane. Upon TCR stimulation, the Src-family kinase Lck and the ZAP-70 tyrosine kinase phosphorylate multiple tyrosine residues on LAT, creating docking sites for SH2-domain-containing proteins such as Grb2, PLC-gamma1, and Gads. These interactions recruit downstream effectors that activate calcium flux, MAPK signaling, and transcriptional pathways including NFAT, NF-kappaB, and AP-1. Through these mechanisms, LAT orchestrates the signal amplification necessary for full T-cell activation.

The LAT gene is located on chromosome 16p11.2 and encodes a single-pass type III transmembrane protein with a short extracellular domain and a cytoplasmic tail rich in tyrosine residues. The LAT scaffold acts as an organizational hub, integrating signals from the TCR, co-stimulatory receptors, and cytokine receptors. LAT phosphorylation dynamics are tightly regulated to prevent aberrant T-cell activation and autoimmunity. In developing thymocytes, LAT signaling contributes to both positive and negative selection, shaping the mature T-cell repertoire.

Defects in LAT expression or phosphorylation impair T-cell development and lead to severe combined immunodeficiency-like phenotypes. Conversely, gain-of-function mutations or dysregulated LAT signaling can cause hyperactivation syndromes, lymphoproliferative disorders, or autoimmunity. LAT also functions in mast cells, natural killer cells, and platelets, where it mediates Fc receptor-dependent signaling and degranulation responses.

LAT antibody is widely used in immunology, signal transduction, and cell biology research. It is suitable for western blotting, flow cytometry, and immunofluorescence to examine TCR-induced phosphorylation and signal complex formation. Researchers employ this antibody to dissect T-cell activation pathways and study immune regulation at the molecular level. LAT serves as a key marker of functional TCR signaling in both primary immune cells and model systems.

Structurally, LAT contains a cytoplasmic region with multiple phosphorylation sites that function as SH2-binding motifs for signaling partners. It forms large signalosomes through multivalent interactions that promote phase-separated clusters at the membrane. NSJ Bioreagents provides LAT antibody reagents validated for use in T-cell activation, immune signaling, and phosphorylation research.

UniProt: O54957

Pathways: TCR Signaling, Fc-epsilon Receptor Signaling Pathway