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AGO2/Argonaute 2/EIF2C2  Protein, Antibody, ELISA Kit, cDNA Clone

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Expression host: Baculovirus-Insect Cells  
11079-H07B-20
11079-H07B-10
20 µg 
10 µg 
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Expression host: Baculovirus-Insect Cells  
50683-M07B-20
50683-M07B-10
20 µg 
10 µg 
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AGO2/Argonaute 2/EIF2C2 Related Area

AGO2/Argonaute 2/EIF2C2 Related Pathways

    AGO2/Argonaute 2/EIF2C2 Related Protein, Antibody, cDNA Gene, and ELISA Kits

    AGO2/Argonaute 2/EIF2C2 Summary & Protein Information

    AGO2/Argonaute 2/EIF2C2 Background

    Gene Summary: This gene encodes a member of the Argonaute family of proteins which play a role in RNA interference. The encoded protein is highly basic, and contains a PAZ domain and a PIWI domain. It may interact with dicer1 and play a role in short-interfering-RNA-mediated gene silencing. Multiple transcript variants encoding different isoforms have been found for this gene.
    General information above from NCBI
    Catalytic activity: Endonucleolytic cleavage to 5'-phosphomonoester. {ECO:0000255|HAMAP-Rule:MF_03031, ECO:0000269|PubMed:15105377, ECO:0000269|PubMed:23746446}.
    Cofactor: Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000269|PubMed:15284456}; Name=Mn(2+); Xref=ChEBI:CHEBI:29035; Evidence={ECO:0000269|PubMed:15284456};
    Enzyme regulation: ENZYME REGULATION: Inhibited by EDTA. {ECO:0000269|PubMed:15284456}.
    Subunit structure: Interacts with DICER1 through its Piwi domain and with TARBP2 during assembly of the RNA-induced silencing complex (RISC). Together, DICER1, AGO2 and TARBP2 constitute the trimeric RISC loading complex (RLC), or micro-RNA (miRNA) loading complex (miRLC). Within the RLC/miRLC, DICER1 and TARBP2 are required to process precursor miRNAs (pre-miRNAs) to mature miRNAs and then load them onto AGO2. AGO2 bound to the mature miRNA constitutes the minimal RISC and may subsequently dissociate from DICER1 and TARBP2. Note however that the term RISC has also been used to describe the trimeric RLC/miRLC. The formation of RISC complexes containing siRNAs rather than miRNAs appears to occur independently of DICER1. Interacts with AGO1. Also interacts with DDB1, DDX5, DDX6, DDX20, DHX30, DHX36, DDX47, DHX9, EIF6, ELAVL, FXR1, GEMIN4, HNRNPF, IGF2BP1, ILF3, IMP8, MATR3, MOV10, PABPC1, PRMT5, P4HA1, P4HB, RBM4, SART3, TNRC6A, TNRC6B, UPF1 and YBX1. Interacts with the P-body components DCP1A and XRN1. Associates with polysomes and messenger ribonucleoproteins (mNRPs). Interacts with RBM4; the interaction is modulated under stress-induced conditions, occurs under both cell proliferation and differentiation conditions and in an RNA- and phosphorylation-independent manner. Interacts with LIMD1, WTIP and AJUBA. Interacts with TRIM71. Interacts with APOBEC3G in an RNA-dependent manner. Interacts with APOBEC3A, APOBEC3C, APOBEC3F and APOBEC3H. {ECO:0000269|PubMed:14749716, ECO:0000269|PubMed:15337849, ECO:0000269|PubMed:15973356, ECO:0000269|PubMed:16081698, ECO:0000269|PubMed:16271387, ECO:0000269|PubMed:16289642, ECO:0000269|PubMed:16357216, ECO:0000269|PubMed:16699599, ECO:0000269|PubMed:16756390, ECO:0000269|PubMed:17382880, ECO:0000269|PubMed:17507929, ECO:0000269|PubMed:17531811, ECO:0000269|PubMed:17932509, ECO:0000269|PubMed:18178619, ECO:0000269|PubMed:18690212, ECO:0000269|PubMed:19167051, ECO:0000269|PubMed:19801630, ECO:0000269|PubMed:20505670, ECO:0000269|PubMed:20616046, ECO:0000269|PubMed:21475248, ECO:0000269|PubMed:21981923, ECO:0000269|PubMed:22539551, ECO:0000269|PubMed:22682761, ECO:0000269|PubMed:22791714, ECO:0000269|PubMed:22915799}.
    Domain: The Piwi domain may perform RNA cleavage by a mechanism similar to that of RNase H. However, while RNase H utilizes a triad of Asp-Asp-Glu (DDE) for metal ion coordination, this protein appears to utilize a triad of Asp-Asp-His (DDH).
    Subcellular location: Cytoplasm, P-body. Nucleus. Note=Translational repression of mRNAs results in their recruitment to P-bodies. Translocation to the nucleus requires IMP8.
    Post-translational: Hydroxylated. 4-hydroxylation appears to enhance protein stability but is not required for miRNA-binding or endonuclease activity. {ECO:0000255|HAMAP-Rule:MF_03031, ECO:0000269|PubMed:18690212}.
    Sequence similarity: Belongs to the argonaute family. Ago subfamily. {ECO:0000255|HAMAP-Rule:MF_03031}.; Contains 1 PAZ domain. {ECO:0000255|HAMAP-Rule:MF_03031}.; Contains 1 Piwi domain. {ECO:0000255|HAMAP-Rule:MF_03031}.
    General information above from UniProt

    Argonaute 2 (AGO2), also known as Eukaryotic translation initiation factor 2C2 (EIF2C2), belongs to the Argonaute family, AGO subfamily, which is a component of the RNA-induced silencing complex (RISC) and mediates small interfering RNA (siRNA)-directed mRNA cleavage and microRNA translational suppression. AGO2 protein is the catalytic engine of mammalian RNAi. It contains a PIWI domain that is structurally related to RNases H and possibly shares with them a two-metal-ion catalysis mechanism. Human AGO2 was unable to cleave preformed RNA duplexes and exhibited weaker binding affinity for RNA duplexes compared with the single strand RNA. The enzyme exhibited greater RNase H activity in the presence of Mn2+ compared with Mg2+. Human AGO2 exhibited weaker binding affinities and reduced cleavage activities for antisense RNAs with either a 5'-terminal hydroxyl or abasic nucleotide. In mouse hematopoiesis, AGO2 controls early development of lymphoid and erythroid cells. AGO2 is a highly specialized member of the Argonaute family with an essential nonredundant Slicer-independent function within the mammalian miRNA pathway. AGO2 regulates dFMR1 expression, and the relationship between dFMR1 and AGO2 was defined by their physical interaction and co-regulation of downstream targets. AGO2 and dFMR1 are also connected through a regulatory relationship. AGO2 is a regulator of dFMR1 expression and have clarified an important developmental role for AGO2 in the nervous system and germ line that requires dFMR1 function. In addition, AGO2 is regulated at both the transcriptional and posttranslational level, and also implicate AGO2 and enhanced micro-RNA activity in the tumorigenic progression of breast cancer cell lines.

    AGO2/Argonaute 2/EIF2C2 Alternative Name

    AGO2/Argonaute 2/EIF2C2 Related Studies

  • O'Carroll D, et al. (2007) A Slicer-independent role for Argonaute 2 in hematopoiesis and the microRNA pathway. Genes Dev. 21(16): 1999-2004.
  • Pepper AS, et al. (2009) Argonaute2 suppresses Drosophila fragile X expression preventing neurogenesis and oogenesis defects. PLoS One. 4(10): e7618.
  • Lima WF, et al. (2009) Binding and cleavage specificities of human Argonaute2. J Biol Chem. 284(38): 26017-28.
  • Adams BD, et al. (2009) Argonaute-2 expression is regulated by epidermal growth factor receptor and mitogen-activated protein kinase signaling and correlates with a transformed phenotype in breast cancer cells. Endocrinology. 150(1): 14-23.
  • Salvatore V, et al. (2010) Bacterial expression of mouse argonaute 2 for functional and mutational studies. Int J Mol Sci. 11(2): 745-53.
  • Wilson JA, et al. (2011) Human Ago2 is required for efficient microRNA 122 regulation of hepatitis C virus RNA accumulation and translation. J Virol. 85(5): 2342-50.
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