Rabbit anti-Human DDX58 Polyclonal Antibody | anti-DDX58 antibody

DDX58 Antibody

Cat. Num. AAA9406520

• Gene Names: DDX58; RIGI; RIG-I; RLR-1; SGMRT2
• Reactivity: Human
• Applications: Western Blot, Immunohistochemistry, Immunofluorescence
• Purity: Antibodies were purified by affinity purification using immunogen.
• Synonyms: DDX58; Polyclonal Antibody; DDX58 Antibody; DKFZp434J1111; DKFZp686N19181; FLJ13599; RIG-I; anti-DDX58 antibody

• Host: Rabbit
• Reactivity: Human
• Clonality: Polyclonal
• Specificity: The antibody detects endogenous level of total DDX58 protein.
• Purity/Purification: Antibodies were purified by affinity purification using immunogen.
• Form/Format: Supplied at 1.0mg/mL in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
• Concentration: 1.0 mg/ml (varies by lot)
• Sequence Length: 925

• Applicable Applications for anti-DDX58 antibody: Western Blot (WB), Immunohistochemistry (IHC), Immunofluorescence (IF)
• Application Notes: Western blotting: 1:500 - 1:2000; Immunohistochemistry: 1:50 - 1:200; Immunofluorescence: 1:20 - 1:100
• Immunogen Type: Peptide
• Immunogen Description: A synthetic peptide of human DDX58.
• Target Name: DDX58
• Preparation and Storage: Store at -20 degree C

Western Blot (WB)

(Western blot analysis of extracts of various cell lines, using DDX58 antibody.)

Immunohistochemistry (IHC)

(Immunohistochemical analysis of paraffin-embedded human rectal cancer using DDX58 antibody at dilution of 1:200 (200x lens).)

Immunofluorescence (IF)

(Immunofluorescence analysis of MCF-7 cell using DDX58 antibody. Blue: DAPI for nuclear staining.)

Related Product Information for anti-DDX58 antibody

Antiviral innate immunity depends on the combination of parallel pathways triggered by virus detecting proteins in the Toll-like receptor (TLR) family and RNA helicases, such as Rig-I (retinoic acid-inducible gene I) and MDA-5 (melanoma differentiation-associated antigen 5), which promote the transcription of type I interferons (IFN) and antiviral enzymes (1-3). TLRs and helicase proteins contain sites that recognize the molecular patterns of different virus types, including DNA, single-stranded RNA (ssRNA), double-stranded RNA (dsRNA), and glycoproteins. These antiviral proteins are found in different cell compartments; TLRs (i.e. TLR3, TLR7, TLR8, and TLR9) are expressed on endosomal membranes and helicases are localized to the cytoplasm. Rig-I expression is induced by retinoic acid, LPS, IFN, and viral infection (4,5). Both Rig-I and MDA-5 share a DExD/H-box helicase domain that detects viral dsRNA and two amino-terminal caspase recruitment domains (CARD) that are required for triggering downstream signaling (4-7). Rig-I binds both dsRNA and viral ssRNA that contains a 5'-triphosphate end not seen in host RNA (8,9). Though structurally related, Rig-I and MDA-5 detect a distinct set of viruses (10,11). The CARD domain of the helicases, which is sufficient to generate signaling and IFN production, is recruited to the CARD domain of the MAVS/VISA/Cardif/IPS-1 mitochondrial protein, which triggers activation of NF-kB, TBK1/IKKeta, and IRF-3/IRF-7 (12-15).

Product Categories/Family for anti-DDX58 antibody

Total protein Ab

NCBI and Uniprot Product Information

• NCBI GI #: 27881482
• NCBI GeneID: 23586
• NCBI Accession #: NP_055129.2
• NCBI GenBank Nucleotide #: NM_014314.3
• UniProt Accession #: O95786; Q5HYE1; Q5VYT1; Q9NT04; A2RU81
• Molecular Weight: 101,377 Da
• NCBI Official Full Name: probable ATP-dependent RNA helicase DDX58
• NCBI Official Synonym Full Names: DEAD (Asp-Glu-Ala-Asp) box polypeptide 58
• NCBI Official Symbol: DDX58
• NCBI Official Synonym Symbols: RIGI; RIG-I; RLR-1; SGMRT2
• NCBI Protein Information: probable ATP-dependent RNA helicase DDX58
• UniProt Protein Name: Probable ATP-dependent RNA helicase DDX58
• Protein Family: Probable ATP-dependent RNA helicase
• UniProt Gene Name: DDX58
• UniProt Synonym Gene Names: RLR-1; RIG-1; RIG-I
• UniProt Entry Name: DDX58_HUMAN

NCBI Description

DEAD box proteins, characterized by the conserved motif Asp-Glu-Ala-Asp (DEAD), are putative RNA helicases which are implicated in a number of cellular processes involving RNA binding and alteration of RNA secondary structure. This gene encodes a protein containing RNA helicase-DEAD box protein motifs and a caspase recruitment domain (CARD). It is involved in viral double-stranded (ds) RNA recognition and the regulation of immune response. [provided by RefSeq, Jul 2008]

Uniprot Description

DDX58: an innate immune receptor which acts as a cytoplasmic sensor of viral nucleic acids and plays a major role in sensing viral infection and in the activation of a cascade of antiviral responses including the induction of type I interferons and proinflammatory cytokines. Its ligands include: 5'- triphosphorylated ssRNA and dsRNA and short dsRNA (<1 kb in length). In addition to the 5'-triphosphate moiety, blunt-end base pairing at the 5'-end of the RNA is very essential. Overhangs at the non-triphosphorylated end of the dsRNA RNA have no major impact on its activity. A 3'overhang at the 5'triphosphate end decreases and any 5'overhang at the 5' triphosphate end abolishes its activity. Upon ligand binding it associates with mitochondria antiviral signaling protein MAVS which activates the IKK- related kinases TBK1 and IKBKE which phosphorylate interferon regulatory factors IRF3 and IRF7, in turn activating transcription of antiviral immunological genes, including IFN-alpha and IFN-beta. Detects both positive and negative strand RNA viruses including members of the families Paramyxoviridae: Human respiratory synctial virus and measles virus (MeV), Rhabdoviridae: vesicular stomatitis virus (VSV), Orthomyxoviridae: influenza A and B virus, Flaviviridae: Japanese encephalitis virus (JEV), hepatitis C virus (HCV), dengue virus (DENV) and west Nile virus (WNV). It also detects rotavirus and reovirus. Also involved in antiviral signaling in response to viruses containing a dsDNA genome such as Epstein-Barr virus (EBV). Detects dsRNA produced from non-self dsDNA by RNA polymerase III, such as Epstein-Barr virus-encoded RNAs (EBERs). May play important roles in granulocyte production and differentiation, bacterial phagocytosis and in the regulation of cell migration. Maintained as a monomer in an autoinhibited state. Upon viral dsRNA binding and conformation shift, homomultimerizes and interacts with MAVS. Interacts with DHX58, IKBKE, TBK1 and STING. Interacts (via CARD domain) with TRIM25 (via SPRY domain). Interacts with RNF135. Interacts with CYLD. Interacts with NLRC5; blocks the interaction of MAVS to DDX58. Interacts with SRC. Interacts with protein Z of Guanarito virus, Machupo virus, Junin arenavirus and Sabia virus. This interaction disrupts its interaction with MAVS, impeding downstream IRF3 and NF-kappa-B activation and resulting in decreased IFN-beta induction. Interacts (via CARD domain) with Human respiratory syncytial virus A non-structural protein 2 (NS2) and this interaction disrupts its interaction with MAVS, impeding downstream IRF3 activation. Present in vascular smooth cells. Belongs to the helicase family. RLR subfamily. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: EC 3.6.4.13; Hydrolase

Chromosomal Location of Human Ortholog: 9p12

Cellular Component: tight junction; cytoplasm; cytosol; actin cytoskeleton

Molecular Function: identical protein binding; protein binding; single-stranded RNA binding; zinc ion binding; double-stranded RNA binding; double-stranded DNA binding; helicase activity; ATP binding

Biological Process: viral reproduction; metabolic process; response to virus; regulation of cell migration; response to exogenous dsRNA; detection of virus; positive regulation of transcription factor import into nucleus; positive regulation of interferon-beta production; innate immune response; positive regulation of transcription from RNA polymerase II promoter; positive regulation of transcription factor activity; positive regulation of defense response to virus by host; negative regulation of interferon type I production; positive regulation of interferon-alpha production

Disease: Singleton-merten Syndrome 2