Phospho-ULK1 (Ser556) Antibody (YA908)
(Synonyms: ATG1; ATG1A; hATG1; ULK1; UNC51; )Based on 1 Customer Validation
Phospho-ULK1 (Ser556) Antibody (YA908) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to Phospho-ULK1 (Ser556).
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Host:
Rabbit
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Isotype:
IgG
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Application:
WB
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Reactivity :
Human, Mouse
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Formulation:
Supplied in Rabbit IgG in 10mM phosphate buffered saline , pH 7.4, 150mM sodium chloride, 0.05% BSA, 0.02% sodium azide and 50% glycerol.
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Conjugation:
Non-conjugated
Applications
| Application |
WB
WB: Western Blot
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|---|---|
| Dilution Ratio | 1:500-1:1000 |
Product Details
Phospho-ULK1 (Ser556) Antibody (YA908) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to Phospho-ULK1 (Ser556).
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Host Rabbit
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Clonality Recombinant,Monoclonal
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Species ReactivityHuman, Mouse
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Calculated Molecular Weight Calculated MW:113kDa; Observed MW:130kDa
A synthesized peptide derived from human Phospho-ULK1 (S556)
Endogenous
Affinity Chromatography
Non-conjugated
Phosphorylated
IgG
Product Properties
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Appearance
Solution
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Formulation
Supplied in Rabbit IgG in 10mM phosphate buffered saline , pH 7.4, 150mM sodium chloride, 0.05% BSA, 0.02% sodium azide and 50% glycerol.
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Concentration
Batch-dependent, Please check the COA for the concentration of each lot. Check Lot Concentration
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Storage & Stability
Stored at -20°C for 1 year. Avoid repeated freeze / thaw cycles.
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Shipping
Shipping with blue ice.
Background
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Function
ULK1 is a serine/threonine kinase and a key initiator of mammalian autophagy, functioning near the apex of a nutrient-sensitive regulatory pathway[1]. Mechanistically, AMPK binds ULK1 and supports ULK1-mediated autophagy, while mTORC1 negatively regulates the ULK1 autophagic complex through phosphorylation-dependent control[2][3]. During starvation, ULK1 links cellular energy sensing to downstream autophagy machinery, including ATG13, FIP200/RB1CC1, ATG101, ATG14L, VPS34, and phagophore formation[3][4]. In disease models, altered ULK1 signaling has been connected with prostate cancer progression, prion infection, clear cell renal cell carcinoma, cardiomyocyte oxidative injury, and pathogen-related autophagy[5][6][7][8][9]. Compared with ULK2, ULK1 shows strong functional overlap in nutrient-starvation autophagy, because combined ULK1/ULK2 loss disrupts autophagy activation more clearly than single loss[10]. Compared with ULK3, ULK1 remains part of the canonical mTOR-AMPK autophagy axis, whereas ULK3 can support mTOR-insensitive autophagic flux in BIN1-deficient hippocampal neurons[11]. For experimental applications, ULK1 pathway modulation can be studied with AMPK activators, mTOR inhibitors, deubiquitinase inhibitor WP1130, and pathway inhibitors targeting CAMKK2-AMPK-ULK1 signaling[2][5][12].
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Subcellular Localization
Cytoplasm, cytosol; Preautophagosomal structure
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Expression
Tissue_specificity:Widely expressed. Detectable in the following adult tissues: skeletal muscle, heart, pancreas, brain, placenta, liver, kidneys, and lungs. -
Subunit
Interacts with GABARAP and GABARAPL2 (PubMed:11146101). Interacts (via C-terminus) with ATG13 (PubMed:18936157). Part of a complex consisting of ATG13, ATG101, ULK1 and RB1CC1 (PubMed:19287211). Associates with the mammalian target of rapamycin complex 1 (mTORC1) through an interaction with RPTOR; the association depends on nutrient conditions and is reduced during starvation (PubMed:19211835, PubMed:21795849). Interacts with FEZ1; SCOC interferes with FEZ1-binding (PubMed:22354037). Interacts with TBC1D14 (PubMed:22613832). Interacts (phosphorylated form) with TRIM5 (PubMed:25127057). When phosphorylated at Ser-317, interacts with MEFV and BECN1 simultaneously (PubMed:26347139). Interacts with TRIM21 and IRF3, in the presence of TRIM21 (PubMed:26347139). Interacts with SESN2 (PubMed:25040165). Interacts with SQSTM1 (PubMed:25040165). Interacts with C9orf72 (PubMed:27334615). Interacts with WDR45 (PubMed:28561066). Interacts with ATG13; this interaction is increased in the absence of TMEM39A (PubMed:31806350). Interacts with WIPI2 (PubMed:28890335). Interacts with ATP2A2 (PubMed:28890335). Interacts with AMBRA1 (PubMed:25438055, PubMed:31123703). Interacts with IRGM; promoting the coassembly of ULK1 and BECN1 (PubMed:25891078)
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SwissProt ID
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Synonyms
ATG1; ATG1A; hATG1; ULK1; UNC51;
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Research Field
Signal Transduction
Documentation
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Data Sheet (263 KB)
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SDS (251 KB)
- English - EN (251 KB)
- Français - FR (251 KB)
- Deutsch - DE (251 KB)
- Norwegian - NO (251 KB)
- Español - ES (251 KB)
- Swedish - SV (251 KB)
- Italian - IT (251 KB)
- Korean - KR (251 KB)
- Portuguese - PT (251 KB)
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User Guide for Antibodies (1077 KB)
References
[1]. Chan EY. Regulation and function of uncoordinated-51 like kinase proteins. Antioxid Redox Signal. 2012 Sep 1;17(5):775-85. doi: 10.1089/ars.2011.4396. Epub 2012 Jan 4. PMID: 22074133. et al. Regulation and function of uncoordinated-51 like kinase proteins. Antioxid Redox Signal. 2012 Sep 1;17(5):775-85. [Content Brief]
[2]. Lee JW, et al. The association of AMPK with ULK1 regulates autophagy. PLoS One. 2010 Nov 3;5(11):e15394. [Content Brief]
[3]. Roach PJ. AMPK -> ULK1 -> autophagy. Mol Cell Biol. 2011 Aug;31(15):3082-4. doi: 10.1128/MCB.05565-11. Epub 2011 May 31. PMID: 21628530; PMCID: PMC3147606. et al. AMPK -> ULK1 -> autophagy. Mol Cell Biol. 2011 Aug;31(15):3082-4. [Content Brief]
[4]. Pyo KE, et al. ULK1 O-GlcNAcylation Is Crucial for Activating VPS34 via ATG14L during Autophagy Initiation. Cell Rep. 2018 Dec 4;25(10):2878-2890.e4. [Content Brief]
[5]. Lin C, et al. Inhibition of CAMKK2 impairs autophagy and castration-resistant prostate cancer via suppression of AMPK-ULK1 signaling. Oncogene. 2021 Mar;40(9):1690-1705. [Content Brief]
[6]. Fan XY, et al. Activation of the AMPK-ULK1 pathway plays an important role in autophagy during prion infection. Sci Rep. 2015 Oct 1;5:14728. [Content Brief]
[7]. Radovanovic M, et al. Role of AMPK/mTOR-independent autophagy in clear cell renal cell carcinoma. J Investig Med. 2020 Dec;68(8):1386-1393. [Content Brief]
[8]. Xie C, et al. A novel danshensu/tetramethypyrazine derivative attenuates oxidative stress-induced autophagy injury via the AMPK-mTOR-Ulk1 signaling pathway in cardiomyocytes. Exp Ther Med. 2021 Feb;21(2):118. [Content Brief]
[9]. Yu Y, et al. Guanylate-Binding protein 2b regulates the AMPK/mTOR/ULK1 signalling pathway to induce autophagy during Mycobacterium bovis infection. Virulence. 2022 Dec;13(1):875-889. [Content Brief]
[10]. McAlpine F, et al. Regulation of nutrient-sensitive autophagy by uncoordinated 51-like kinases 1 and 2. Autophagy. 2013 Mar;9(3):361-73. [Content Brief]
[11]. Jin Y, et al. BIN1 deficiency enhances ULK3-dependent autophagic flux and reduces dendritic size in mouse hippocampal neurons. Autophagy. 2025 Jan;21(1):223-242. [Content Brief]
[12]. Drießen S, et al. Deubiquitinase inhibition by WP1130 leads to ULK1 aggregation and blockade of autophagy. Autophagy. 2015;11(9):1458-70. [Content Brief]