Product nameAnti-ULK1 (phospho S638) antibody [EPR6155]
See all ULK1 primary antibodies
DescriptionRabbit monoclonal [EPR6155] to ULK1 (phospho S638)
Specificityab133766 only detects ULK1 phosphorylated at Serine 638.
Tested applicationsSuitable for: WBmore details
Unsuitable for: ICC,IHC-P or IP
Species reactivityReacts with: Human
Phospho specific peptide corresponding to residues surrounding Serine 638 of Human ULK1.
- ULK1 transfected 293T cell lysate.
Mouse, Rat: We have preliminary internal testing data to indicate this antibody may not react with these species. Please contact us for more information.
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMab® patents.
This product is a recombinant rabbit monoclonal antibody.
Storage instructionsShipped at 4°C. Store at -20°C. Stable for 12 months at -20°C.
Dissociation constant (KD)KD = 5.43 x 10 -11 M Learn more about KD
Storage bufferpH: 7.20
Preservative: 0.01% Sodium azide
Constituents: 9% PBS, 40% Glycerol, 0.05% BSA, 50% Tissue culture supernatant
PurityTissue culture supernatant
Our Abpromise guarantee covers the use of ab133766 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|WB||1/1000 - 1/10000. Detects a band of approximately 120 kDa (predicted molecular weight: 112 kDa).|
FunctionSerine/threonine-protein kinase involved in autophagy in response to starvation. Acts upstream of phosphatidylinositol 3-kinase PIK3C3 to regulate the formation of autophagophores, the precursors of autophagosomes. Part of regulatory feedback loops in autophagy: acts both as a downstream effector and negative regulator of mammalian target of rapamycin complex 1 (mTORC1) via interaction with RPTOR. Activated via phosphorylation by AMPK and also acts as a regulator of AMPK by mediating phosphorylation of AMPK subunits PRKAA1, PRKAB2 and PRKAG1, leading to negatively regulate AMPK activity. May phosphorylate ATG13/KIAA0652 and RPTOR; however such data need additional evidences. Plays a role early in neuronal differentiation and is required for granule cell axon formation. May also phosphorylate SESN2 and SQSTM1 to regulate autophagy (PubMed:25040165).
Tissue specificityUbiquitously expressed. Detected in the following adult tissues: skeletal muscle, heart, pancreas, brain, placenta, liver, kidney, and lung.
Sequence similaritiesBelongs to the protein kinase superfamily. Ser/Thr protein kinase family. APG1/unc-51/ULK1 subfamily.
Contains 1 protein kinase domain.
modificationsAutophosphorylated. Phosphorylated under nutrient-rich conditions; dephosphorylated during starvation or following treatment with rapamycin. Under nutrient sufficiency, phosphorylated by MTOR/mTOR, disrupting the interaction with AMPK and preventing activation of ULK1 (By similarity). In response to nutrient limitation, phosphorylated and activated by AMPK, leading to activate autophagy.
Cellular localizationCytoplasm, cytosol. Preautophagosomal structure. Under starvation conditions, is localized to puncate structures primarily representing the isolation membrane that sequesters a portion of the cytoplasm resulting in the formation of an autophagosome.
- Information by UniProt
- ATG 1 antibody
- ATG1 antibody
- ATG1 autophagy related 1 homolog antibody
All lanes : Anti-ULK1 (phospho S638) antibody [EPR6155] (ab133766) at 1/1000 dilution
Lane 1 : ULK1 transfected 293T cell lysate
Lane 2 : ULK1 transfected 293T cell lysate, treated with Lambda Phosphatase
Lysates/proteins at 10 µg per lane.
All lanes : HRP labelled Goat anti Rabbit IgG at 1/2000 dilution
Predicted band size: 112 kDa
Equilibrium disassociation constant (KD)
Learn more about KD
Click here to learn more about KD
ab133766 has not yet been referenced specifically in any publications.