Revision 2

#8359Store at -20C

1 Kit

(7 x 20 microliters)

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.
Product Includes Product # Quantity Mol. Wt Isotype/Source
Phospho-AMPKα (Thr172) (40H9) Rabbit mAb 2535 20 µl 62 kDa Rabbit IgG
AMPKα (D63G4) Rabbit mAb 5832 20 µl 62 kDa Rabbit 
Phospho-Raptor (Ser792) Antibody 2083 20 µl 150 kDa Rabbit 
Raptor (24C12) Rabbit mAb 2280 20 µl 150 kDa Rabbit 
Phospho-ULK1 (Ser555) (D1H4) Rabbit mAb 5869 20 µl 140-150 kDa Rabbit IgG
Phospho-ULK1 (Ser757) Antibody 6888 20 µl 140-150 kDa Rabbit 
ULK1 (D8H5) Rabbit mAb 8054 20 µl 150 kDa Rabbit IgG
Anti-rabbit IgG, HRP-linked Antibody 7074 100 µl Goat 

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

Description

The ULK1 Antibody Sampler Kit provides an economical way to investigate ULK1 signaling. The kit contains enough primary antibody to perform two western blots with each primary antibody.

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

Two related serine/threonine kinases, UNC-51-like kinase 1 and 2 (ULK1, ULK2), were discovered as mammalian homologs of the C. elegans gene unc-51 in which mutants exhibited abnormal axonal extension and growth (1-4). Both proteins are widely expressed and contain an amino-terminal kinase domain followed by a central proline/serine rich domain and a highly conserved carboxy-terminal domain. The roles of ULK1 and ULK2 in axon growth have been linked to studies showing that the kinases are localized to neuronal growth cones and are involved in endocytosis of critical growth factors, such as NGF (5). Yeast two-hybrid studies found ULK1/2 associated with modulators of the endocytic pathway, SynGAP, and syntenin (6). Structural similarity of ULK1/2 has also been recognized with the yeast autophagy protein Atg1/Apg1 (7). Knockdown experiments using siRNA demonstrated that ULK1 is essential for autophagy (8), a catabolic process for the degradation of bulk cytoplasmic contents (9,10). It appears that Atg1/ULK1 can act as a convergence point for multiple signals that control autophagy (11), and can bind to several autophagy-related (Atg) proteins, regulating phosphorylation states and protein trafficking (12-16).

Raptor mediates the binding of mTORC1 to ULK1, which phosphorylates and inhibits ULK1 under nutrient rich conditions. AMPK also associates directly with ULK1 and, upon nutrient deprivation, can readily reverse the inhibitory effect of mTORC1 by phosphorylating raptor and initiating autophagy (17,18).

  1. Ogura, K. et al. (1994) Genes Dev 8, 2389-400.
  2. Kuroyanagi, H. et al. (1998) Genomics 51, 76-85.
  3. Yan, J. et al. (1998) Biochem Biophys Res Commun 246, 222-7.
  4. Yan, J. et al. (1999) Oncogene 18, 5850-9.
  5. Zhou, X. et al. (2007) Proc Natl Acad Sci USA 104, 5842-7.
  6. Tomoda, T. et al. (2004) Genes Dev 18, 541-58.
  7. Matsuura, A. et al. (1997) Gene 192, 245-50.
  8. Chan, E.Y. et al. (2007) J Biol Chem 282, 25464-74.
  9. Reggiori, F. and Klionsky, D.J. (2002) Eukaryot Cell 1, 11-21.
  10. Codogno, P. and Meijer, A.J. (2005) Cell Death Differ 12 Suppl 2, 1509-18.
  11. Stephan, J.S. and Herman, P.K. (2006) Autophagy 2, 146-8.
  12. Okazaki, N. et al. (2000) Brain Res Mol Brain Res 85, 1-12.
  13. Young, A.R. et al. (2006) J Cell Sci 119, 3888-900.
  14. Kamada, Y. et al. (2000) J Cell Biol 150, 1507-13.
  15. Lee, S.B. et al. (2007) EMBO Rep 8, 360-5.
  16. Hara, T. et al. (2008) J Cell Biol 181, 497-510.
  17. Shang, L. et al. (2011) Proc Natl Acad Sci U S A 108, 4788-93.
  18. Lee, J.W. et al. (2010) PLoS One 5, e15394.

Background References

    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.

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    Revision 2
    #8359

    ULK1 Antibody Sampler Kit

    ULK1 Antibody Sampler Kit: Image 1 Expand Image
    Immunoprecipitation of ULK1 from MCF7 cell extracts. Lane 1 is 10% input, lane 2 is precipitated with Rabbit (DA1E) mAb IgG XP® Isotype Control #3900, and lane 3 is ULK1 (D8H5) Rabbit mAb, #8054. Western blot was performed using ULK1 (D8H5) Rabbit mAb.
    ULK1 Antibody Sampler Kit: Image 2 Expand Image
    Simple Western™ analysis of lysates (0.1 mg/mL) from RD cells using ULK1 (D8H5) Rabbit mAb #8054. The virtual lane view (left) shows a single target band (as indicated) at 1:50 and 1:250 dilutions of primary antibody. The corresponding electropherogram view (right) plots chemiluminescence by molecular weight along the capillary at 1:50 (blue line) and 1:250 (green line) dilutions of primary antibody. This experiment was performed under reducing conditions on the Jess™ Simple Western instrument from ProteinSimple, a BioTechne brand, using the 12-230 kDa separation module.
    ULK1 Antibody Sampler Kit: Image 3 Expand Image
    Western blot analysis of C2C12 or 293 cells, untreated or treated with AICAR (0.5 mM for 30 minutes) or oligomycin (0.5 μM for 30 minutes), using Phospho-Raptor (Ser792) Antibody (upper and lower left ) or Raptor Antibody #2280 (upper and lower right).

    *Cross-reacting bands at 200 kDa.

    ULK1 Antibody Sampler Kit: Image 4 Expand Image
    Western blot analysis of extracts from various cell lines, using Raptor (24C12) Rabbit mAb.
    ULK1 Antibody Sampler Kit: Image 5 Expand Image
    Western blot analysis of extracts from C2C12 cells, untreated or oligomycin-treated (0.5 µM), using Phospho-AMPKα (Thr172) (40H9) Rabbit mAb (upper) or AMPKα Antibody #2532 (lower).
    ULK1 Antibody Sampler Kit: Image 6 Expand Image
    Western blot analysis of extracts from HeLa, K-562, C6, and Neuro-2a cells using AMPKα (D63G4) Rabbit mAb.
    ULK1 Antibody Sampler Kit: Image 7 Expand Image
    Western blot analysis of extracts from control U-2 OS cells or CRISPR/Cas9 ULK1 knockout (KO) U-2 OS cells, untreated (-) or treated with AMPK Activator 991 (50 μM, 1 hr; +) using Phospho-ULK1 (Ser555) (D1H4) Rabbit mAb (upper), ULK1 (D8H5) Rabbit mAb #8054 (middle), or GAPDH (D16H11) XP® Rabbit mAb #5174 (lower). The absence of signal in ULK1 KO cells confirms the specificity of the antibodies for ULK1. ULK1 knockout cells were kindly provided by Dr. Reuben Shaw, Salk Institute for Biological Studies, La Jolla, CA.
    ULK1 Antibody Sampler Kit: Image 8 Expand Image
    Western blot analysis of extracts from A172 cells, untreated (-), Torin 1-treated (+; 250 nM; 5 hrs), or INK-128-treated (+; 250 nM; 5 hrs) using Phospho-ULK1 (Ser757) Antibody (upper) or total ULK1 (D8H5) Rabbit mAb #8054 (lower).
    ULK1 Antibody Sampler Kit: Image 9 Expand Image
    After the primary antibody is bound to the target protein, a complex with HRP-linked secondary antibody is formed. The LumiGLO® is added and emits light during enzyme catalyzed decomposition.
    ULK1 Antibody Sampler Kit: Image 10 Expand Image
    Western blot analysis of extracts from control U-2 OS cells or CRISPR/Cas9 ULK1 knockout (KO) U-2 OS cells, untreated (-) or treated with AMPK Activator 991 (50 μM, 1 hr; +) using ULK1 (D8H5) Rabbit mAb (upper), Phospho-ULK1 (Ser555) (D1H4) Rabbit mAb #5869 (middle), or GAPDH (D16H11) XP® Rabbit mAb #5174 (lower). The absence of signal in ULK1 KO cells confirms the specificity of the antibodies for ULK1.ULK1 knockout cells were kindly provided by Dr. Reuben Shaw, Salk Institute for Biological Studies, La Jolla, CA.
    ULK1 Antibody Sampler Kit: Image 11 Expand Image
    Western blot analysis of wild-type (WT) and AMPKα1 and α2 knockout (KO) mouse embryonic fibroblasts (MEFs), untreated or treated with AICAR (2 mM for 1 hour), using Phospho-Raptor (Ser792) Antibody (upper) or Raptor Antibody #4978 (lower). (Image provided by Dr. Reuben Shaw, Salk Institute for Biological Studies).

    *Cross-reacting bands at 60, 70 and 240 kDa

    ULK1 Antibody Sampler Kit: Image 12 Expand Image
    Western blot analysis of extracts from 293T and C6 cells, untreated (-) or treated with Oligomycin (5uM, 30mins; +) using Phospho-AMPKα (Thr172) (40H9) Rabbit mAb (upper) or AMPKα (D5A2) Rabbit mAb #5831 (lower). Phospho-AMPKα (Thr172) is induced by Oligomycin treatment as expected.
    ULK1 Antibody Sampler Kit: Image 13 Expand Image
    Western blot analysis of extracts from MCF7 cells, untreated or treated with oligomycin #9996 (0.5 μM, 30 minutes), and C2C12 cells, untreated or treated with hydrogen peroxide (10 mM, 5 minutes), using Phospho-ULK1 (Ser555) (D1H4) Rabbit mAb.
    ULK1 Antibody Sampler Kit: Image 14 Expand Image
    Western blot analysis of extracts from A-431 cells, untreated or treated with Human Epidermal Growth Factor (hEGF) #8916 (100 ng/ml, 30 min) using Phospho-ULK1 (Ser757) Antibody (upper), or α-Tubulin (11H10) Rabbit mAb #2125 (lower).
    ULK1 Antibody Sampler Kit: Image 15 Expand Image
    Western blot analysis of extracts from various cell lines using ULK1 (D8H5) Rabbit mAb.
    ULK1 Antibody Sampler Kit: Image 16 Expand Image
    Immunohistochemical analysis of paraffin-embedded human esophageal carcinoma using Phospho-AMPKα (Thr172) (40H9) Rabbit mAb performed on the Leica BOND RX.
    ULK1 Antibody Sampler Kit: Image 17 Expand Image
    Western blot analysis of extracts from MCF7 cells, untreated or treated with oligomycin #9996 (0.5 µM, 30 minutes), using Phospho-ULK1 (Ser555) (D1H4) Rabbit mAb (left). Phospho-specificity is demonstrated by pre-incubating the antibody with phosphorylated (middle) or non-phosphorylated peptides (right) against a region surrounding Ser555 of ULK1.
    ULK1 Antibody Sampler Kit: Image 18 Expand Image
    Western blot analysis of extracts from wild-type MEF and ULK1 (-/-) MEF cells using ULK1 (D8H5) Rabbit mAb (upper) and β-Actin (D6A8) Rabbit mAb #8457 (lower). MEF cells were kindly provided by Dr. Reuben Shaw (Salk Institute, La Jolla, CA).
    ULK1 Antibody Sampler Kit: Image 19 Expand Image
    Immunohistochemical analysis of paraffin-embedded human colon carcinoma using Phospho-AMPKα (Thr172) (40H9) Rabbit mAb.
    ULK1 Antibody Sampler Kit: Image 20 Expand Image
    Western blot analysis of extracts from MCF7 cells, untreated (-) or treated with carbonyl cyanide 3-chlorophenylhydrazone (CCCP) (100 μM, 2 hr; +), using Phospho-ULK1 (Ser555) (D1H4) Rabbit mAb (upper) or ULK1 (D8H5) Rabbit mAb #8054 (lower).
    ULK1 Antibody Sampler Kit: Image 21 Expand Image
    Immunohistochemical analysis of paraffin-embedded human breast carcinoma using Phospho-AMPKα (Thr172) (40H9) Rabbit mAb.
    ULK1 Antibody Sampler Kit: Image 22 Expand Image
    Immunohistochemical analysis of paraffin-embedded human ovarian carcinoma using Phospho-AMPKα (Thr172) (40H9) Rabbit mAb.
    ULK1 Antibody Sampler Kit: Image 23 Expand Image
    Immunohistochemical analysis of paraffin-embedded NCI-H228 cell pellets, control (left) or phenformin-treated (right), using Phospho-AMPKalpha (T172) (40H9) Rabbit mAb.