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.
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UniProt ID:

#Q6ZNE5

Entrez-Gene Id:

22863

Product Includes Quantity Reactivity MW(kDa) Isotype
Phospho-Atg14 (Ser29) (D4B8M) Rabbit mAb 92340 100 µl H M R 65 Rabbit IgG
Atg14 (D1A1N) Rabbit mAb 96752 100 µl H M R 65 Rabbit IgG

Please visit cellsignal.com for individual component applications, species cross-reactivity, dilutions, protocols, and additional product information.

Description

PhosphoPlus® Duets from Cell Signaling Technology (CST) provide a means to assess protein activation status. Each Duet contains an activation-state and total protein antibody to your target of interest. These antibodies have been selected from CST's product offering based upon superior performance in specified applications.

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

Background

Autophagy is a catabolic process for the autophagosomic-lysosomal degradation of bulk cytoplasmic contents (1,2). Autophagy is generally activated by conditions of nutrient deprivation but is also associated with a number of physiological processes including development, differentiation, neurodegeneration, infection, and cancer (3). The molecular machinery of autophagy was largely discovered in yeast and is directed by a number of autophagy-related (Atg) genes. These proteins are involved in the formation of autophagosomes, cytoplasmic vacuoles that are delivered to lysosomes for degradation. The class III type phosphoinositide 3-kinase (PI3K) Vps34 regulates vacuolar trafficking and autophagy (4,5). Multiple proteins associate with Vps34, including p105/Vps15, Beclin-1, UVRAG, Atg14, and Rubicon, to determine Vps34 function (6-12). Atg14 and Rubicon were identified based on their ability to bind to Beclin-1 and participate in unique complexes with opposing functions (9-12). Rubicon, which localizes to the endosome and lysosome, inhibits Vps34 lipid kinase activity; knockdown of Rubicon enhances autophagy and endocytic trafficking (11,12). In contrast, Atg14 localizes to autophagosomes, isolation membranes and ER, and can enhance Vps34 activity. Knockdown of Atg14 inhibits starvation-induced autophagy (11,12).

The serine/threonine kinase ULK1 phosphorylates Atg14 at Ser29 to promote autophagosome formation (13).

  1. Reggiori, F. and Klionsky, D.J. (2002) Eukaryot Cell 1, 11-21.
  2. Codogno, P. and Meijer, A.J. (2005) Cell Death Differ 12 Suppl 2, 1509-18.
  3. Levine, B. and Yuan, J. (2005) J Clin Invest 115, 2679-88.
  4. Corvera, S. (2001) Traffic 2, 859-66.
  5. Yan, Y. and Backer, J.M. (2007) Biochem Soc Trans 35, 239-41.
  6. Stack, J.H. et al. (1995) J Cell Biol 129, 321-34.
  7. Zeng, X. et al. (2006) J Cell Sci 119, 259-70.
  8. Liang, C. et al. (2006) Nat Cell Biol 8, 688-99.
  9. Itakura, E. et al. (2008) Mol Biol Cell 19, 5360-72.
  10. Sun, Q. et al. (2008) Proc Natl Acad Sci U S A 105, 19211-6.
  11. Zhong, Y. et al. (2009) Nat Cell Biol 11, 468-76.
  12. Matsunaga, K. et al. (2009) Nat Cell Biol 11, 385-96.
  13. Park, J.M. et al. (2016) Autophagy 12, 547-64.

Background References

    Trademarks and Patents

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

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    Revision 1
    #69501

    PhosphoPlus® Atg14 (Ser29) Antibody Duet

    PhosphoPlus® Atg14 (Ser29) Antibody Duet: Image 1 Expand Image
    使用 Phospho-Atg14 (Ser29) (D4B8M) Rabbit mAb(上图)、Atg14 (D1A1N) Rabbit mAb(中图)或 β-Actin (D6A8) Rabbit mAb #8457(下图),对转染空载 (-) 或转染表达带有 GFP 标签的人 Atg14 蛋白 (hAtg14-GFP; +) 或小鼠 ULK1 蛋白 (mULK1; +) 表达载体的 293T 细胞提取物进行蛋白印迹分析。
    PhosphoPlus® Atg14 (Ser29) Antibody Duet: Image 2 Expand Image
    使用 Atg14 (D1A1N) Rabbit mAb(上)和 β-Actin (D6A8) Rabbit mAb #84576(下)对 HCT 116 和 HCT 116/Atg14 shRNA 敲除型细胞提取物进行蛋白质印迹分析。HCT 116/Atg14 shRNA 细胞由 University of Minnesota, Minneapolis, MN Do-Hyung Kim 博士友情提供。
    PhosphoPlus® Atg14 (Ser29) Antibody Duet: Image 3 Expand Image
    使用 Phospho-Atg14 (Ser29) (D4B8M) Rabbit mAb(上图)、Atg14 (D1A1N) Rabbit mAb #96752(中间)或 β-Actin (D6A8) Rabbit mAb(下图),对未经处理 (-) 或用 Earle's Balanced Salt Solution(EBSS,2 小时;+)和 ULK1 抑制剂 SBI-0206965 #29089(50 μM,2 小时;+)(如图所示)饥饿的 HCT 116 和 HCT 116/Atg14 shRNA 敲除型细胞的提取物进行蛋白印迹分析。HCT 116/Atg14 shRNA 敲除型细胞由明尼苏达州明尼阿波利斯明尼苏达大学的 Do-Hyung Kim 博士惠赠。
    PhosphoPlus® Atg14 (Ser29) Antibody Duet: Image 4 Expand Image
    使用 Atg14 (D1A1N) Rabbit mAb 对不同细胞系提取物进行蛋白质印迹分析。
    PhosphoPlus® Atg14 (Ser29) Antibody Duet: Image 5 Expand Image
    使用 Phospho-Atg14 (Ser29) (D4B8M) Rabbit mAb(上图)、Atg14 (D1A1N) Rabbit mAb #96752(中图)和 β-Actin (D6A8) Rabbit mAb #8457(下图),对未经 (-) 或已经 λ-磷酸酶和牛小肠磷酸酶(λ-磷酸酶/CIP ;+) 处理的 HCT 116 细胞的提取物进行蛋白印迹分析。
    PhosphoPlus® Atg14 (Ser29) Antibody Duet: Image 6 Expand Image
    使用 Phospho-Atg14 (Ser29) (D4B8M) Rabbit mAb(上图)、Atg14 (D1A1N) Rabbit mAb #96752(中间)和 β-Actin (D6A8) Rabbit mAb #8457(下图)对未经处理 (-) 或用 Earle's Balanced Salt Solution(EBSS,2 小时)饥饿的 Saos-2 细胞的提取物进行蛋白印迹分析。
    PhosphoPlus® Atg14 (Ser29) Antibody Duet: Image 7 Expand Image
    使用 Phospho-Atg14 (Ser29) (D4B8M) Rabbit mAb(绿色)对未经(左图,低表达)或经 Torin 1 #14379(250 nM,2 小时;中间-左图,高表达)处理的 HCT 116 Atg14 野生型细胞、经 Torin 1(中间-右图,阴性)处理的 HCT 116/Atg14 shRNA 敲除型细胞或经 λ-磷酸酶(2 小时,右图,阴性)进行后处理的 HCT 116 Atg14 野生型细胞进行共聚焦免疫荧光分析。样本用 ProLong® Gold Antifade Reagent with DAPI #8961(蓝色)封片。HCT 116/Atg14 shRNA 敲除型细胞由明尼苏达州明尼阿波利斯明尼苏达大学的 Do-Hyung Kim 博士惠赠。
    PhosphoPlus® Atg14 (Ser29) Antibody Duet: Image 8 Expand Image
    使用 Phospho-Atg14 (Ser29) (D4B8M) Rabbit mAb(实线)或浓度匹配的 Rabbit (DA1E) mAb IgG XP® Isotype Control #3900(虚线)经过 Torin 1 #14379(250 nM,18 小时;蓝色,低表达)处理的敲除型 HCT 116/Atg14 shRNA 细胞或经过 Torin 1(绿色,高表达)处理的野生型 HCT 116 细胞。Anti-rabbit IgG (H+L), F(ab')2 Fragment (Alexa Fluor® 488 Conjugate) #4412 用作二抗。HCT 116/Atg14 shRNA 敲除型细胞由明尼苏达州明尼阿波利斯明尼苏达大学的 Do-Hyung Kim 博士惠赠。
    PhosphoPlus® Atg14 (Ser29) Antibody Duet: Image 9 Expand Image
    对 Neuro2A 细胞提取物 Atg14 进行免疫沉淀。泳道 1 为 10% 输入,泳道 2 用 Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 沉淀,泳道 3 为 Atg14 (D1A1N) Rabbit mAb。使用 Atg14 (D1A1N) Rabbit mAb 进行蛋白质印迹分析。