Biolegend, 846601, Purified anti-Tau Phospho (Thr181) Antibody, 25μg

Tau protein promotes microtubule assembly and stability. Tau is abundant in neurons of the central nervous system, and is expressed at low levels in astrocytes and oligodendrocytes. Abnormal hyper-phosphorylation, aggregation, and toxic gain of function of tau is associated with several neurological disorders, including Alzheimer’s disease (AD). The major building block of neurofibrillary lesions in AD brains consists of paired helical filaments (PHFs) of abnormally hyperphosphorylated tau. Recent studies indicate that cerebrospinal fluid tau phosphorylated at position threonine 181 has diagnostic utility for several neurological disorders. Six isoforms of tau are generated by alternative splicing of the MAPT gene. These isoforms are distinguished by the number of tubulin binding domains, 3 (3R) or 4 (4R), in the C-terminal of the protein and by one (1N), two (2N), or no (0N) inserts in the N-terminal domain. Tau isoforms are differentially expressed during development.
25μg
Verified Reactivity: Human
Antibody Type: Monoclonal
Host Species: Mouse
Immunogen: 15-mer pT181 Tau peptide conjugated to KLH.
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: IHC-P - Quality testedWB, Direct ELISA - Verified
Recommended Usage: Each lot of this antibody is quality control tested by formalin-fixed paraffin-embedded immunohistochemical staining. For immunohistochemistry, a concentration range of 1.0 - 10 μg/ml is suggested. For Western blotting, a concentration range of 2.0 - 10 μg/ml is suggested. For Direct ELISA, a concentration range of 1.0 - 10 μg/ml is suggested. It is recommended that the reagent be titrated for optimal performance for each application.
Product Citations: Rajbanshi B, et al. 2023. Alzheimers Dement. 2874:19. PubMed Kim K, et al. 2020. Nat Commun. 0.540972222. PubMed
RRID: AB_2715859 (BioLegend Cat. No. 846601) AB_2616881 (BioLegend Cat. No. 846602)
Structure: Unmodified Tau isoforms have an apparent molecular weight ranging from 33-79 kD. Additional high and low molecular weight Tau species have been observed in brain tissues.
Distribution: Tissue distribution: central nervous system, peripheral ganglia and nerves, kidney, skeletal, and heart muscle. Cellular distribution: cytoskeleton, nucleus, plasma membrane, and cytosol.
Function: Tau promotes microtubule assembly and stability. The short tau isoforms allow plasticity of the cytoskeleton whereas the longer isoforms may preferentially play a role in its stabilization.
Interaction: Tau interacts with Sequestosome-1, Peptidyl-prolyl cis-trans isomerase FKBP4, Casein kinase I isoform delta, Serine/threonine-protein kinase Sgk1, Laforin, Alpha-synuclein
Molecular Family: Phospho-Proteins, Tau
Antigen References: 1. Meredith JE Jr, et al. 2013. PLoS One 8(10):e76523. PubMed 2. Goodall CA, et al. 2006. J. Neurol. Neurosurg. Psychiatry 77(1):89. PubMed
Gene ID: 4137
UniProt: View information about Tau Phospho Thr181 on UniProt.org
Clone: M7004D06
Regulatory Status: RUO
Other Names: Microtubule associated protein tau
Isotype: Mouse IgG1, κ