Revision 1
Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Applications:

WB

REACTIVITY:

H M R

SENSITIVITY:

Endogenous

MW (kDa):

80 to 95

SOURCE:

Rabbit

UniProt ID:

#Q7KZI7, #P27448, #Q9P0L2

Entrez-Gene Id:

2011, 4140, 4139

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at –20°C. Do not aliquot the antibody.

Specificity / Sensitivity

Phospho-MARK Family (Activation Loop) Antibody detects endogenous levels of phosphorylated MARK family members, MARK1 at threonine 215, MARK2 at threonine 208, and MARK3 at threonine 234 (A.K.A. 211 in isoforms 3-6) . This antibody does not react with MARK4.

Species Reactivity:

Human, Mouse, Rat

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding threonine 215 of human MARK1. Antibodies were purified by protein A and peptide affinity chromatography.

Background

Microtubule associated proteins regulate the stability of microtubules and control processes such as cell polarity/differentiation, neurite outgrowth, cell division and organelle trafficking (1). The MARK (MAP/microtubule affinity-regulating kinases) family (MARK1-4) of serine/threonine kinases was identified based on their ability to phosphorylate microtubule-associated proteins (MAPs) including tau, MAP2 and MAP4 (2-6). MARK proteins phosphorylate MAPs within their microtubule binding domains, causing dissociation of MAPs from microtubules and increased microtubule dynamics (2-4). In the case of tau, phosphorylation has been hypothesized to contribute to the formation of neurofibrillary tangles observed in Alzheimer's disease. Overexpression of MARK leads to hyperphosphorylation of MAPs, morphological changes and cell death (4). The tumor suppressor kinase LKB1 phosphorylates MARK and the closely related AMP-kinases within their T-loops, leading to increased activity (7).

  1. Drubin, D.G. and Nelson, W.J. (1996) Cell 84, 335-44.
  2. Illenberger, S. et al. (1996) J Biol Chem 271, 10834-43.
  3. Drewes, G. et al. (1995) J Biol Chem 270, 7679-88.
  4. Drewes, G. et al. (1997) Cell 89, 297-308.
  5. Kato, T. et al. (2001) Neoplasia 3, 4-9.
  6. Trinczek, B. et al. (2004) J Biol Chem 279, 5915-23.
  7. Lizcano, J.M. et al. (2004) EMBO J 23, 833-43.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Western Blot Buffer

IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

Applications Key

WB: Western Blotting

Cross-Reactivity Key

H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

Trademarks and Patents

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

限制使用

除非 CST 的合法授书代表以书面形式书行明确同意,否书以下条款适用于 CST、其关书方或分书商提供的书品。 任何书充本条款或与本条款不同的客书条款和条件,除非书 CST 的合法授书代表以书面形式书独接受, 否书均被拒书,并且无效。

专品专有“专供研究使用”的专专或专似的专专声明, 且未专得美国食品和专品管理局或其他外国或国内专管机专专专任何用途的批准、准专或专可。客专不得将任何专品用于任何专断或治专目的, 或以任何不符合专专声明的方式使用专品。CST 专售或专可的专品提供专作专最专用专的客专,且专用于研专用途。将专品用于专断、专防或治专目的, 或专专售(专独或作专专成)或其他商专目的而专专专品,均需要 CST 的专独专可。客专:(a) 不得专独或与其他材料专合向任何第三方出售、专可、 出借、捐专或以其他方式专专或提供任何专品,或使用专品制造任何商专专品,(b) 不得复制、修改、逆向工程、反专专、 反专专专品或以其他方式专专专专专品的基专专专或技专,或使用专品开专任何与 CST 的专品或服专专争的专品或服专, (c) 不得更改或专除专品上的任何商专、商品名称、徽专、专利或版专声明或专专,(d) 只能根据 CST 的专品专售条款和任何适用文档使用专品, (e) 专遵守客专与专品一起使用的任何第三方专品或服专的任何专可、服专条款或专似专专

Revision 1
#4836

Phospho-MARK Family (Activation Loop) Antibody

Western Blotting Image 1: Phospho-MARK Family (Activation Loop) Antibody Expand Image
对293MARK 家族成员对应的磷酸化位点出现丙氨酸突变并经过野生型或苏氨酸转染的细胞,使用 Phospho-MARK Family (Activation Loop) Antibody 对其提取物进行蛋白质印迹分析。转染的表达载体含一个 GSt 和 HA 标签。使用 HA Antibody, #2367监测转染效率。
Western Blotting Image 2: Phospho-MARK Family (Activation Loop) Antibody Expand Image
使用 Phospho-MARK Family (Activation Loop) Antibody 对 Raji和 BaF3 细胞提取物进行蛋白质印迹分析,结果显示内源水平的磷酸化 MARK 家族成员。