PERK Antibody (YA233)
(Synonyms: EIF2AK3; PEK; PERK; Eukaryotic translation initiation factor 2-alpha kinase 3; PRKR-like endoplasmic reticulum kinase; Pancreatic eIF2-alpha kinase; HsPEK)Based on 1 Customer Validation
PERK Antibody (YA233) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to PERK.
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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, Rat
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Formulation:
Supplied in 50 mM Tris-Glycine (pH 7.4), 0.15 M NaCl, 40% Glycerol and 0.05% BSA. Preservative: 0.01% Sodium azide
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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
PERK Antibody (YA233) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to PERK.
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Host Rabbit
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Clonality Recombinant,Monoclonal
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Species ReactivityHuman, Mouse, Rat
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Observed Molecular WeightObserved band size: 140 kDaNote: Due to possible protein modifications or aggregation, the molecular weight should be confirmed by actual measurement, and the predicted value is for reference only.
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Calculated Molecular Weight Predicted band size: 125 kDa
Entrez Gene: 9451 Human ; 13666 Mouse ; 29702 Rat
SwissProt: Q9NZJ5 Human ; Q9Z2B5 Mouse ; Q9Z1Z1 Rat
OMIM: 226980 Human
Synthetic peptide corresponding to Human PERK.The exact sequence is proprietary to MCE.
Endogenous
affinity purified
Non-conjugated
Unmodified
IgG
Product Properties
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Appearance
Solution
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Formulation
Supplied in 50 mM Tris-Glycine (pH 7.4), 0.15 M NaCl, 40% Glycerol and 0.05% BSA. Preservative: 0.01% Sodium azide
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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.
Verification Images
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Western blot analysis was performed on extracts from Hela (lane 1, 20 μg), C6 (lane 2, 20 μg), and 293T (lane 3, 20 μg) using PERK Rabbit mAb.Proteins were transferred to a PVDF membrane and blocked with 5% non - fat milk in TBST at 4°C overnight.The primary antibody (1:1000 dilution) and the loading control antibody (beta-Actin, HY-P83730, 1:5000 dilution) were incubated in 5% non-fat milk in TBST for 1 hour at 37°C.Goat Anti - Rabbit IgG - HRP Secondary Antibody (1:20000 dilution) was then applied for 40 minutes at 37°C.
Background
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Function
Protein kinase R (PKR) -like endoplasmic reticulum kinase (PERK) is one of four known kinases that respond to cellular stress by deactivating the eukaryotic initiation factor 2 α (eIF2α) or other signal transduction cascades. PERK is highly expressed in pancreatic beta-cells and is essential in the beta-cell's development, differentiation and function.
PERK is a type I ER membrane protein containing a stress-sensing domain facing the ER lumen, a transmembrane segment, and a cytosolic kinase domain. Increase in unfolded proteins in the ER causes release of ER chaperones from the stress-sensing domain of PERK, which results in its activation via oligomerization and autophosphorylation at multiple serine, threonine, and tyrosine residues. Upon activation, PERK phosphorylates eIF2α at serine 51, rendering it an inhibitor of the ribosome translation initiation complex, consequently reducing overall protein synthesis. The reduction in translation reduces the ER burden, providing time for the cell to process or degrade the accumulated unfolded proteins to restore ER homeostasis. Although global protein synthesis is decreased, there is specific increased translation of certain mRNAs, such as ATF4, which modulate cellular survival pathways and enhance UPR function. Interfering with PERK function in cancer cells may limit their ability to thrive under hypoxia or nutrient deprived conditions and lead to apoptosis or tumor growth inhibition.
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Subcellular Localization
Endoplasmic reticulum membrane; Single-pass type I membrane protein
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Expression
Tissue_specificity:It is widely distributed and highly expressed in secretory tissues.
Induction:By endoplasmic reticulum stress -
Subunit
Forms dimers with HSPA5/BIP in resting cells (PubMed:11907036). Homotetramerizes in response to endoplasmic reticulum (ER) stress, leading to its activation (PubMed:25925385). Interacts with HSP90B1/GRP94 (PubMed:11907036). Interacts with DNAJC3; inhibiting EIF2AK3/PERK activity (By similarity). Interacts with ATAD3A; ATAD3A and EIF2S1/eIF-2-alpha occupy a common binding site within the cytoplasmic loop of EIF2AK3/PERK, leading to prevent EIF2AK3/PERK association with its substrate EIF2S1/eIF-2-alpha (PubMed:39116259). Interacts with MFN2 (By similarity). Interacts with TMEM33 (PubMed:26268696). Interacts with PDIA6 (PubMed:24508390). Interacts with LACC1 (PubMed:31875558)
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SwissProt ID
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Synonyms
EIF2AK3; PEK; PERK; Eukaryotic translation initiation factor 2-alpha kinase 3; PRKR-like endoplasmic reticulum kinase; Pancreatic eIF2-alpha kinase; HsPEK
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Research Field
Epigenetics and Nuclear Signaling
Documentation
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Data Sheet (232 KB)
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SDS (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 KB)
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User Guide for Antibodies (1077 KB)