Register or Login
  • All
  • Uniprot Id
  • Catalog #
  • Peptide Sequence
>   home   >   Products   >   Primary Antibodies   >   Antibody Collections   >   Autophagy   >   APG1 (ULK1) Antibody (Center)   

APG1 (ULK1) Antibody (Center)

Purified Rabbit Polyclonal Antibody (Pab)

  • IF - APG1 (ULK1) Antibody (Center) AP8104B
    Fluorescent image of U251 cells stained with APG1 (ULK1) (Center) antibody. U251 cells were treated with Chloroquine (50 μM,16h), then fixed with 4% PFA (20 min), permeabilized with Triton X-100 (0.2%, 30 min). Cells were then incubated with AP8104b APG1 (ULK1) (Center) primary antibody (1:100, 2 h at room temperature). For secondary antibody, Alexa Fluor® 488 conjugated donkey anti-rabbit antibody (green) was used (1:1000, 1h). Nuclei were counterstained with Hoechst 33342 (blue) (10 μg/ml, 5 min). APG1 (ULK1) immunoreactivity is localized to autophagic vacuoles in the cytoplasm of U251 cells.
  • WB - APG1 (ULK1) Antibody (Center) AP8104B
    Western blot analysis of anti-ULK1 Pab (Cat. #AP8104b) in A2058 cell lysate. ULK1 (arrow) was detected using purified Pab. Secondary HRP-anti-rabbit was used for signal visualization with chemiluminescence.
Product Information
  • Applications Legend:
  • WB=Western Blot
  • IHC=Immunohistochemistry
  • IHC-P=Immunohistochemistry (Paraffin-embedded Sections)
  • IHC-F=Immunohistochemistry (Frozen Sections)
  • IF=Immunofluorescence
  • FC=Flow Cytopmetry
  • IC=Immunochemistry
  • ICC=Immunocytochemistry
  • IP=Immunoprecipitation
  • DB=Dot Blot
  • CHIP=Chromatin Immunoprecipitation
  • FA=Fluorescence Assay
  • IEM=Immunoelectronmicroscopy
  • EIA=Enzyme Immunoassay
Primary Accession O75385
Reactivity Human
Host Rabbit
Clonality Polyclonal
Isotype Rabbit Ig
Calculated MW 112631 Da
Antigen Region 642-672 aa
Additional Information
Gene ID 8408
Other Names Serine/threonine-protein kinase ULK1, Autophagy-related protein 1 homolog, ATG1, hATG1, Unc-51-like kinase 1, ULK1, KIAA0722
Target/Specificity This APG1 (ULK1) antibody is generated from rabbits immunized with a KLH conjugated synthetic peptide between 642-672 amino acids from the Central region of human APG1 (ULK1).
Dilution IF~~1:100
Format Purified polyclonal antibody supplied in PBS with 0.09% (W/V) sodium azide. This antibody is purified through a protein A column, followed by peptide affinity purification.
StorageMaintain refrigerated at 2-8°C for up to 2 weeks. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.
PrecautionsAPG1 (ULK1) Antibody (Center) is for research use only and not for use in diagnostic or therapeutic procedures.
Protein Information
Name ULK1
Synonyms KIAA0722
Function Serine/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.
Cellular Location Cytoplasm, cytosol. Preautophagosomal structure. Note=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
Tissue Location Ubiquitously expressed. Detected in the following adult tissues: skeletal muscle, heart, pancreas, brain, placenta, liver, kidney, and lung
Research Areas
Citations ( 0 )


Macroautophagy is the major inducible pathway for the general turnover of cytoplasmic constituents in eukaryotic cells, it is also responsible for the degradation of active cytoplasmic enzymes and organelles during nutrient starvation. Macroautophagy involves the formation of double-membrane bound autophagosomes which enclose the cytoplasmic constituent targeted for degradation in a membrane bound structure, which then fuse with the lysosome (or vacuole) releasing a single-membrane bound autophagic bodies which are then degraded within the lysosome (or vacuole). Two human homologs of the yeast autophagy-specific kinase exist: ULK1(APG1) and ULK2. APG1 plays a critical role in regulating key elements of the autophagy pathway. APG1 stimulates autophagy, leading to autophagy-dependent restriction of cell growth and ultimately cell apoptosis at high levels of activity, and is a negative regulator of mTOR signaling.


References for protein:
1.Scott, R., et al., Current Biology 17: 1-11 (2007).
2.Kuroyanagi, H., et al., Genomics 51(1):76-85 (1998).
References for U251 cell line:
1. Westermark B.; Pontén J.; Hugosson R. (1973).” Determinants for the establishment of permanent tissue culture lines from human gliomas”. Acta Pathol Microbiol Scand A. 81:791-805. [PMID: 4359449].
2. Pontén, J.,Westermark B. (1978).” Properties of Human Malignant Glioma Cells in Vitro”. Medical Biology 56: 184-193.[PMID: 359950].
3. Geng Y.;Kohli L.; Klocke B.J.; Roth K.A.(2010). “Chloroquine-induced autophagic vacuole accumulation and cell death in glioma cells is p53 independent”. Neuro Oncol. 12(5): 473–481.[ PMID: 20406898].

Abgent welcomes feedback from its customers.

If you have used an Abgent product and would like to share how it has performed, please click on the "Submit Review" button and provide the requested information. Our staff will examine and post your review and contact you if needed.

If you have any additional inquiries please email technical services at

$ 295.00
$ 99.00
Cat# AP8104B
(40 western blots)
Availability: In Stock
Bulk Size
Seasonal Special on Bulk Order
Request Quote Here

Ordering Information

United States
AlbaniaAustraliaAustriaBelgiumBosnia & HerzegovinaBrazilBulgariaCanadaChinaCroatiaCyprusCzech RepublicDenmarkEstoniaFinlandFranceGermanyGreeceHong KongHungaryIcelandIndiaIndonesiaIrelandIsraelItalyJapanKoreaLatviaLithuaniaLuxembourgMacedoniaMalaysiaMaltaNetherlandsNew ZealandNorwayPakistanPolandPortugalRomaniaSerbiaSingaporeSlovakiaSloveniaSouth AfricaSpainSwedenSwitzerlandTaiwanTurkeyUnited KingdomUnited StatesVietnamOthers
Abgent, Inc.
(888) 735-7227 / (858) 622-0099
(858) 622-0609

Shipping Information

Domestic orders (in stock items)
Shipped out the same day. Orders placed after 1 PM (PST) will ship out the next business day.
International orders
Contact your local distributors
Santa Cruz Alternative
Terms & Conditions