Human Protein argonaute-2(EIF2C2) ELISA kit

Code CSB-EL007520HU
Size 96T,5×96T,10×96T
Trial Size 24T ELISA kits trial application
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Product Details

Target Name eukaryotic translation initiation factor 2C, 2
Alternative Names Ago 2 ELISA Kit; AGO2_HUMAN ELISA Kit; Argonaute 2 ELISA Kit; argonaute 2; RISC catalytic component ELISA Kit; Argonaute RISC catalytic component 2 ELISA Kit; Argonaute2 ELISA Kit; CTA-204B4.6 ELISA Kit; dAgo2 ELISA Kit; eIF 2C 2 ELISA Kit; eIF-2C 2 ELISA Kit; eIF2C 2 ELISA Kit; Eif2c2 ELISA Kit; Eukaryotic translation initiation factor 2C 2 ELISA Kit; Eukaryotic translation initiation factor 2C subunit 2 ELISA Kit; hAgo2 ELISA Kit; MGC3183 ELISA Kit; PAZ Piwi domain protein ELISA Kit; PPD ELISA Kit; Protein argonaute-2 ELISA Kit; Protein slicer ELISA Kit; Q10 ELISA Kit; Slicer protein ELISA Kit
Abbreviation EIF2C2
Uniprot No. Q9UKV8
Species Homo sapiens (Human)
Sample Types serum, plasma, tissue homogenates, cell lysates
Detection Range 25 pg/mL-1600 pg/mL
Sensitivity 6.25 pg/mL
Assay Time 1-5h
Sample Volume 50-100ul
Detection Wavelength 450 nm
Research Area Epigenetics and Nuclear Signaling
Assay Principle quantitative
Measurement Sandwich
Intra-assay Precision (Precision within an assay): CV%<8%
Three samples of known concentration were tested twenty times on one plate to assess.
Inter-assay Precision (Precision between assays): CV%<10%
Three samples of known concentration were tested in twenty assays to assess.
To assess the linearity of the assay, samples were spiked with high concentrations of human EIF2C2 in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.
1:1Average %95
Range %92-99
1:2Average %97
Range %93-102
1:4Average %94
Range %89-98
1:8Average %88
Range %84-93
The recovery of human EIF2C2 spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section.
Sample TypeAverage % RecoveryRange
Serum (n=5) 9994-105
EDTA plasma (n=4)8682-92
Typical Data
These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.
16002.197 2.325 2.261 2.115
8001.387 1.486 1.437 1.291
4000.833 0.799 0.816 0.670
2000.495 0.507 0.501 0.355
1000.304 0.316 0.310 0.164
500.242 0.231 0.237 0.091
250.188 0.184 0.186 0.040
00.145 0.146 0.146
and FAQs
Storage Store at 2-8°C. Please refer to protocol.
Lead Time 5-7 working days

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Target Data

Function Required for RNA-mediated gene silencing (RNAi) by the RNA-induced silencing complex (RISC). The 'minimal RISC' appears to include AGO2 bound to a short guide RNA such as a microRNA (miRNA) or short interfering RNA (siRNA). These guide RNAs direct RISC to complementary mRNAs that are targets for RISC-mediated gene silencing. The precise mechanism of gene silencing depends on the degree of complementarity between the miRNA or siRNA and its target. Binding of RISC to a perfectly complementary mRNA generally results in silencing due to endonucleolytic cleavage of the mRNA specifically by AGO2. Binding of RISC to a partially complementary mRNA results in silencing through inhibition of translation, and this is independent of endonuclease activity. May inhibit translation initiation by binding to the 7-methylguanosine cap, thereby preventing the recruitment of the translation initiation factor eIF4-E. May also inhibit translation initiation via interaction with EIF6, which itself binds to the 60S ribosomal subunit and prevents its association with the 40S ribosomal subunit. The inhibition of translational initiation leads to the accumulation of the affected mRNA in cytoplasmic processing bodies (P-bodies), where mRNA degradation may subsequently occur. In some cases RISC-mediated translational repression is also observed for miRNAs that perfectly match the 3' untranslated region (3'-UTR). Can also up-regulate the translation of specific mRNAs under certain growth conditions. Binds to the AU element of the 3'-UTR of the TNF (TNF-alpha) mRNA and up-regulates translation under conditions of serum starvation. Also required for transcriptional gene silencing (TGS), in which short RNAs known as antigene RNAs or agRNAs direct the transcriptional repression of complementary promoter regions.
Gene References into Functions
  1. Here we show that biotin-labelled miR-34a can be loaded to AGO2, and AGO2 immunoprecipitation can pulldown biotinylated miR-34a (Bio-miR pulldown). RNA-sequencing (RNA-seq) of the Bio-miR pulldown RNAs efficiently identified miR-34a mRNA targets, which could be verified with luciferase assays PMID: 29028450
  2. extracellular vesicles are efficiently internalized by endothelial cells, where the miRNA-Argonaute 2 complexes modulate target gene expression and barrier properties. PMID: 27721445
  3. CASC7 expression was significantly decreased in colorectal cancer (CRC) tissues and CRC cell lines; CASC7 overexpression could inhibit cell viability, migration and invasion, and promote apoptosis in CRC cells PMID: 28954383
  4. A dual role of the association between AGO2 and ERbeta in luminal-like breast cancer cells in the nucleus and the cytoplasm, for the regulation of gene expression at both the transcriptional and post-transcriptional level. PMID: 29017520
  5. Phosphorylation of AGO2 at Ser 387 by Akt3 induces LIMD1 binding, which in turn enables AGO2 to interact with TNRC6A and downstream effector DDX6. PMID: 28683311
  6. AGO2-mediated cleavage of targets is more common than previously thought. This may explain the vital role of endonuclease activity in controlling miRNA-mediated gene regulation. PMID: 29031931
  7. Data show that neuropilin 1 (NRP1) binds extracellular AGO2 (carrying miRNA or not), and internalizes AGO2/miRNA complexes. PMID: 27486976
  8. We found a much larger number of microparticles (MPs) results demonstrate that normal RBCs display an innate ability to resist infection by P. falciparum parasite by releasing Ago2-miRNA complexes via microparticles (MPs)into infected RBCs; data suggest that, through release of MPs, mature RBCs present an innate resistance to malaria infection PMID: 28831191
  9. we describe these two methodologies that we recently used to select a specific compound able to interfere with the AGO2 functional activity and able to improve the retinoic acid-dependent myeloid differentiation of leukemic cells. PMID: 27924485
  10. Here, we describe the use of SPR techniques to study the interaction between Argonaute 2 and small molecular compounds selected by means of high-throughput docking screening. PMID: 27924486
  11. Since miRNAs' functions are executed exclusively by the Argonaute 2 protein, we therefore describe a protocol for the design of a novel miRNA inhibitor class: antagonists of the miRNA-Argonaute 2 protein complex, so-called anti-miR-AGOs, that not only block the crucial binding site of the target miRNA but also bind to the protein's active site. PMID: 27924487
  12. Using our recent work on human AGO2 as an example, we explain the rationale and the workflow of our method in details. This combined approach holds great promise to complement experiments in unraveling the mechanisms of molecular recognition between large, flexible, and complex biomolecules. PMID: 27924488
  13. Here, we present techniques to kinetically characterize recombinant Argonaute 2-mediated guide and target binding as well as target RNA slicing. We focus on fluorescence-based steady-state and in particular pre-steady-state techniques to unravel mechanistic details. Furthermore, we describe a cleavage assay to analyze Argonaute 2-mediated slicing using radioactively labeled target strands. PMID: 27924489
  14. This study employed molecular dynamics simulation to investigate the dynamic properties of human Ago2-RNA-duplex system and Ago2-free system to provide further understanding of the molecular mechanism of Ago2-RNA recognition. PMID: 28388001
  15. The adenovirus major late promoter produces a 31-nucleotide transcriptional start site small RNA (MLP-TSS-sRNA) that retains the 7-methylguanosine (m7G)-cap and is incorporated onto Ago2-containing RNA-induced silencing complexes (RISC) in human adenovirus-37 infected cells. PMID: 28839112
  16. Depletion of AUF1 abolishes the global interaction of miRNAs and AGO2. Single-molecule analysis revealed that AUF1 slowed down assembly of AGO2-let-7b-mRNA complex unexpectedly. AUF1 is a decay-promoting factor influencing multiple steps in AGO2-miRNA-mediated mRNA decay. PMID: 28334781
  17. This lack of 21-3U HCV host factor activity correlated with reduced recruitment of Ago2 to the HCV S1 site. Additional experiments demonstrated strong preference for guanosine at nt 22 of miR-122. Our findings reveal the importance of non-templated 3 miR-122 modifications to its HCV host factor activity, and identify unexpected differences in miRNA requirements for host gene suppression versus RNA virus replication. PMID: 28082397
  18. Low AGO2 expression is associated with melanoma. PMID: 27518285
  19. Altogether, these data suggest that the phosphorylation state of the serine/threonine cluster is important for Argonaute-mRNA interactions. PMID: 28645918
  20. data indicates that the aberrant expression of miR-15b contributes to abnormal placentation by targeting argonaute 2 messenger RNA PMID: 27208409
  21. findings support a model in which an AGO2 phosphorylation cycle stimulated by target engagement regulates miRNA:target interactions to maintain the global efficiency of miRNA-mediated silencing PMID: 28114302
  22. deciphering Ago2:RNA interactions using crosslinking immunoprecipitation coupled with high-throughput sequencing (HITS-CLIP) to generate the first transcriptome-wide map of miR targeting events in human myocardium, detecting 4000 cardiac Ago2 binding sites across 2200 target transcripts PMID: 27418678
  23. AGO2 immunoprecipitation revealed LATS1 as a novel proapoptotic target of miR-21 in T cells. PMID: 28075055
  24. 1174 regions within the 45S rRNA transcript that have the ability to form a perfect duplex with position 2-6 (seed sequence) of each microRNA expressed in HEK293T cells. Of these potential AGO2 binding sites, 479 occurred within experimentally verified AGO2-rRNA cross-linking sites. The ability of AGO2 to cross-link to rRNA was almost completely lost in a DICER knock-out cell line. PMID: 27288410
  25. this study analysed binding of miR-122/ Argonaute 2 complexes to two conserved binding sites in the 5' UTR of hepatitis C virus RNA. PMID: 28008821
  26. overactivity of KRAS due to mutation inhibits localization of Ago2 to multivesicular endosomes (MVEs) and decreases Ago2 secretion in exosomes. PMID: 27117408
  27. TP53 regulates miRNA association with AGO2 to remodel the miRNA-mRNA interaction network PMID: 26701625
  28. These results support the notion that the cereblon binding partner AGO2 plays an important role in regulating MM cell growth and survival and AGO2 could be considered as a novel drug target for overcoming IMiD resistance in MM cells. PMID: 27142104
  29. KRAS engages AGO2 to enhance cellular neoplastic transformation. PMID: 26854235
  30. Authors found that target binding of core-RISC starts at the seed region of the guide RNA. After target binding, four distinct reactions followed: target cleavage, transient binding, stable binding, and Argonaute 2 unloading. PMID: 26592935
  31. AGO2 suppression by miR-132 affects the steady state levels of miR-221 and miR-146a, two miRNAs involved in angiogenesis and inflammation, respectively. PMID: 26475020
  32. DIS3L2 interacts with Ago2 and governs target RNA-directed miRNA degradation. PMID: 26809675
  33. MiR-138 suppresses hTERT expression in an AGO2-dependent manner. PMID: 26507454
  34. Knockdown of Ago2 in Huh7 cells and SMMC-7721 cells substantially decreased VEGF expression, whereas the restoration of AGO2 reversed both VEGF expression and secretion. PMID: 25937637
  35. genetic polymorphism in AGO2 may be a risk factor for the advanced lymph node metastasis of NPC in Chinese populations, and AGO2 acts as an oncogene in the development of NPC. PMID: 26545861
  36. Human Argonaute2 (Ago2) possesses a solvated surface pocket that specifically binds adenine nucleobases in the 1 position (t1) of target RNAs. PMID: 26359634
  37. the subcellular distribution of Ago2 occurs in a cell type- and tissue context-dependent manner and may correlate with its various functions in regulation of gene expression PMID: 26699195
  38. HuR and Ago2 Bind the Internal Ribosome Entry Site of Enterovirus 71 and Promote Virus Translation and Replication PMID: 26451954
  39. GRSF1 participated in the regulation of AGO2 by miR-346, and the middle sequence of miR-346 was vital for the synergy effect of miR-346 and GRSF1. PMID: 26518874
  40. Human AGO2 interacts only with sRNAs (20-30 nt in length), and not with DNA fragments. PMID: 25970378
  41. SERPINE1 mRNA dissociates from the translational repressor proteins Ago2 and TIA-1 upon platelet activation PMID: 25673011
  42. Both argonaute 2 mRNA and protein were upregulated in high-grade when compared to low-grade tumor tissues. Multivariate analysis revealed that argonaute 2 protein expression was independently associated with the overall survival. PMID: 24935600
  43. Targeting of Ago2 to P-bodies and stress granules is separable from its role in RNAi and likely requires dynamic phosphorylation of serine 798. PMID: 26443379
  44. mRNA Targeting to Endoplasmic Reticulum Precedes Ago Protein Interaction and MicroRNA (miRNA)-mediated Translation Repression PMID: 26304123
  45. Ago2 can be SUMOylated in cells by both SUMO1 and SUMO2. SUMOylation occurs primarily at K402, and mutation of the SUMO consensus site surrounding this lysine reduces Ago2-mediated siRNA-induced silencing in a luciferase-based reporter assay. PMID: 26188511
  46. Ago2 overexpression increased the level of miR-16 in cell-secreted MVs, suggesting that Ago2 may facilitate the packaging of secreted miRNAs into MVs. PMID: 25072345
  47. It was demonstrated by deep sequencing that AGO2-processed AgoshRNAs produce RNA effector molecules with more discrete ends than the products of the regular shRNA design. PMID: 25826416
  48. Sumoylation of Ago2 at Lys402 negatively regulates its stability. PMID: 25036361
  49. our results indicate that IRF7 promotes glioma cell invasion and both chemoresistance and radioresistance through AGO2 inhibition PMID: 25680411
  50. a novel mechanism by which AUF1 binding and transfer of microRNA let-7 to AGO2 facilitates let-7-elicited gene silencing. PMID: 26253535

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Subcellular Location Cytoplasm, P-body, Nucleus
Protein Families Argonaute family, Ago subfamily
Database Links

HGNC: 3263

OMIM: 606229

KEGG: hsa:27161

STRING: 9606.ENSP00000220592

UniGene: Hs.660189


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