| 产品编号 | bs-15451R |
| 英文名称 | Hepatitis C virus NS5B |
| 中文名称 | 丙型肝炎病毒NS5B抗体 |
| 别 名 | HCV NS5B; Hepatitis C virus NS5B; Non structural protein 5B; p68; RNA dependent RNA polymerase; RNA directed RNA polymerase; Hepatitis C virus; Hepatitis C virus subtype 1a; Hepatitis C virus subtype 2a; Hepatitis C virus subtype 1b; Hepatitis C virus subtype 2c; Hepatitis C virus subtype 3a; Hepatitis C virus genotype 2; Hepatitis C virus subtype 6a. |
| 研究领域 | 微生物学 细菌及病毒 |
| 抗体来源 | Rabbit |
| 克隆类型 | Polyclonal |
| 交叉反应 | (predicted: Hepatitis C Virus) |
| 产品应用 | ELISA=1:5000-10000
not yet tested in other applications. optimal dilutions/concentrations should be determined by the end user. |
| 理论分子量 | 11kDa |
| 性 状 | Liquid |
| 浓 度 | 1mg/ml |
| 免 疫 原 | KLH conjugated synthetic peptide derived from Hepatitis C virus NS5B.: 21-102/102 |
| 亚 型 | IgG |
| 纯化方法 | affinity purified by Protein A |
| 缓 冲 液 | 0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol. |
| 保存条件 | Shipped at 4℃. Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. |
| 注意事项 | This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. |
| PubMed | PubMed |
| 产品介绍 |
HCV is a positive, single-stranded RNA virus in the Flaviviridae family. The genome is approximately 10,000 nucleotides and encodes a single polyprotein of about 3,000 amino acids. The polyprotein is processed by host cell and viral proteases into three major structural proteins, and several non-structural proteins necessary for viral replication, of which NS5B is one. NS5B RNA-dependant RNA polymerase is responsible for replication of the hepatitis C viral genome, and is currently a principal target for chemotherapeutic inhibition of HCV replication. Hepatitis C virus (HCV) can cause chronic hepatitis, cirrhosis and hepatocellular carcinoma. At present there is no vaccine effective against HCV. Host membrane insertion occurs after processing by the NS3 protease. Function: Core protein packages viral RNA to form a viral nucleocapsid, and promotes virion budding. Modulates viral translation initiation by interacting with HCV IRES and 40S ribosomal subunit. Also regulates many host cellular functions such as signaling pathways and apoptosis. Prevents the establishment of cellular antiviral state by blocking the interferon-alpha/beta (IFN-alpha/beta) and IFN-gamma signaling pathways and by inducing human STAT1 degradation. Thought to play a role in virus-mediated cell transformation leading to hepatocellular carcinomas. Interacts with, and activates STAT3 leading to cellular transformation. May repress the promoter of p53, and sequester CREB3 and SP110 isoform 3/Sp110b in the cytoplasm. Also represses cell cycle negative regulating factor CDKN1A, thereby interrupting an important check point of normal cell cycle regulation. Targets transcription factors involved in the regulation of inflammatory responses and in the immune response: suppresses NK-kappaB activation, and activates AP-1. Could mediate apoptotic pathways through association with TNF-type receptors TNFRSF1A and LTBR, although its effect on death receptor-induced apoptosis remains controversial. Enhances TRAIL mediated apoptosis, suggesting that it might play a role in immune-mediated liver cell injury. Seric core protein is able to bind C1QR1 at the T-cell surface, resulting in down-regulation of T-lymphocytes proliferation. May transactivate human MYC, Rous sarcoma virus LTR, and SV40 promoters. May suppress the human FOS and HIV-1 LTR activity. Alters lipid metabolism by interacting with hepatocellular proteins involved in lipid accumulation and storage. Core protein induces up-regulation of FAS promoter activity, and thereby probably contributes to the increased triglyceride accumulation in hepatocytes (steatosis). E1 and E2 glycoproteins form a heterodimer that is involved in virus attachment to the host cell, virion internalization through clathrin-dependent endocytosis and fusion with host membrane. E1/E2 heterodimer binds to human LDLR, CD81 and SCARB1/SR-BI receptors, but this binding is not sufficient for infection, some additional liver specific cofactors may be needed. The fusion function may possibly be carried by E1. E2 inhibits human EIF2AK2/PKR activation, preventing the establishment of an antiviral state. E2 is a viral ligand for CD209/DC-SIGN and CLEC4M/DC-SIGNR, which are respectively found on dendritic cells (DCs), and on liver sinusoidal endothelial cells and macrophage-like cells of lymph node sinuses. These interactions allow capture of circulating HCV particles by these cells and subsequent transmission to permissive cells. DCs act as sentinels in various tissues where they entrap pathogens and convey them to local lymphoid tissue or lymph node for establishment of immunity. Capture of circulating HCV particles by these SIGN+ cells may facilitate virus infection of proximal hepatocytes and lymphocyte subpopulations and may be essential for the establishment of persistent infection. P7 seems to be a heptameric ion channel protein (viroporin) and is inhibited by the antiviral drug amantadine. Also inhibited by long-alkyl-chain iminosugar derivatives. Essential for infectivity. Protease NS2-3 is a cysteine protease responsible for the autocatalytic cleavage of NS2-NS3. Seems to undergo self-inactivation following maturation. NS3 displays three enzymatic activities: serine protease, NTPase and RNA helicase. NS3 serine protease, in association with NS4A, is responsible for the cleavages of NS3-NS4A, NS4A-NS4B, NS4B-NS5A and NS5A-NS5B. NS3/NS4A complex also prevents phosphorylation of human IRF3, thus preventing the establishment of dsRNA induced antiviral state. NS3 RNA helicase binds to RNA and unwinds dsRNA in the 3' to 5' direction, and likely RNA stable secondary structure in the template strand. Cleaves and inhibits the host antiviral protein MAVS. NS4B induces a specific membrane alteration that serves as a scaffold for the virus replication complex. This membrane alteration gives rise to the so-called ER-derived membranous web that contains the replication complex. NS5A is a component of the replication complex involved in RNA-binding. Its interaction with Human VAPB may target the viral replication complex to vesicles. Down-regulates viral IRES translation initiation. Mediates interferon resistance, presumably by interacting with and inhibiting human EIF2AK2/PKR. Seems to inhibit apoptosis by interacting with BIN1 and FKBP8. The hyperphosphorylated form of NS5A is an inhibitor of viral replication. NS5B is a RNA-dependent RNA polymerase that plays an essential role in the virus replication. Subcellular Location: Host endoplasmic reticulum membrane; Single-pass type I membrane protein (Potential). Post-translational modifications: Specific enzymatic cleavages in vivo yield mature proteins. The structural proteins, core, E1, E2 and p7 are produced by proteolytic processing by host signal peptidases. The core protein is synthesized as a 21 kDa precursor which is retained in the ER membrane through the hydrophobic signal peptide. Cleavage by the signal peptidase releases the 19 kDa mature core protein. The other proteins (p7, NS2-3, NS3, NS4A, NS4B, NS5A and NS5B) are cleaved by the viral proteases. Envelope E1 and E2 glycoproteins are highly N-glycosylated. Core protein is phosphorylated by host PKC and PKA. NS5A is phosphorylated in a basal form termed p56. p58 is an hyperphosphorylated form of p56. p56 and p58 coexist in the cell in roughly equivalent amounts. Hyperphosphorylation is dependent on the presence of NS4A. Human AKT1, RPS6KB1/p70S6K, MAP2K1/MEK1, MAP2K6/MKK6 and CSNK1A1/CKI-alpha kinases may be responsible for NS5A phosphorylation. NS4B is palmitoylated. This modification may play a role in its polymerization or in protein-protein interactions. The N-terminus of a fraction of NS4B molecules seems to be relocated post-translationally from the cytoplasm to the ER lumen, with a 5th transmembrane segment. The C-terminus of NS2 may be lumenal with a fourth transmembrane segment. Core protein is ubiquitinated; mediated by UBE3A and leading to core protein subsequent proteasomal degradation. Similarity: Belongs to the hepacivirus polyprotein family. Contains 1 helicase ATP-binding domain. Contains 1 peptidase C18 domain. Contains 1 peptidase S29 domain. Contains 1 RdRp catalytic domain. SWISS: N/A Gene ID: N/A Database links: Entrez Gene: 951475 Hepatitis C Virus genotype 1a SwissProt: P26664 Hepatitis C Virus genotype 1a SwissProt: P26663 Hepatitis C Virus genotype 1a SwissProt: O39928 Hepatitis C Virus |
| 1、抗体溶解方法 | |
| 2、抗体修复方式 | |
| 3、常用试剂的配制 | |
| 4、免疫组化操作步骤 | |
| 5、免疫组化问题解答 | |
| 6、Western Blotting 操作步骤 | |
| 7、Western Blotting 问题解答 | |
| 8、关于肽链的设计 | |
| 9、多肽的溶解与保存 | |
| 10、酶标抗体效价测定程序 | |
