Tau (phospho Ser416) Antibody

Product Specifications

Background

Tau is a heterogeneous microtubule-associated protein that promotes and stabilizes microtubule assembly, especially in axons. Six isoforms with different amino-terminal inserts and different numbers of tandem repeats near the carboxy-terminus have been identified, and tau is hyperphosphorylated at approximately 25 sites by ERK, GSK-3 and CDK5 (1-2) . Phosphorylation decreases the ability of tau to bind to microtubules. Neurofibrillary tangles are a major hallmark of Alzheimer's disease and these tangles are bundles of paired helical filaments composed of hyperphosphorylated tau. In particular, phosphorylation of Ser396 by GSK-3 or CDK5 destabilizes microtubules in Alzheimer's disease. Furthermore, inclusions of tau are found in a number of other neurodegenerative diseases, collectively known as tauopathies (1, 3) .

NCBI Gene ID

29477

Swiss Prot

P19332

Accession Number

NP_058908.2

Host

Rabbit

Reactivity

Rat

Immunogen

Tau (phospho-Ser416) antibody was raised against a peptide sequence around phosphorylation site of serine 416 (T-G-S (p) -I-D) derived from Rat Tau.

Clonality

Polyclonal

Conjugation

Unconjugated

Type

Primary Antibodies

Field of Research

Phospho-Specific

Purification

Antibodies were purified by affinity-chromatography using epitope-specific phosphopeptide. Non-phospho specific antibodies were removed by chromatogramphy using non-phosphopeptide.

Concentration

1 mg/mL

Buffer

Antibody supplied in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.

Modification

Phospho-Specific

Shipping Conditions

Blue Ice

Storage Conditions

Store antibody at -20˚ C for up to one year.

Calculated Molecular Weight

48, 62, 78 kDa

Specificity

This antibody detects endogenous levels of Tau only when phosphorylated at serine 416.

Applications Notes

Western Blot: 1:500~1:1000

Symbol

Mapt

NCBI Official Name

Microtubule-associated protein tau

NCBI Organism

Rattus

Background Reference 01

Johnson, G. V. and Stoothoff, W. H. (2004) J. Cell Sci. 117, 5721-5729. Hanger, D. P. et al. (1998) J. Neurochem. 71, 2465-2476. Bramblett, G. T. et al. (1993) Neuron 10, 1089-1099.