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大鼠 CD40 Ligand/CD40L/CD154 基因ORF全长cDNA克隆(表达载体), N-Flag 标签

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    大鼠 CD40LG cDNA Clone产品信息
    NCBI注册码:NM_053353.1
    参考序列ORF长度:783bp
    cDNA基因描述:Full length Clone DNA of Rattus norvegicus CD40 ligand with N terminal Flag tag.
    分子别称:Tnfsf5, Cd40lg
    分子种属:Rat
    载体:pCMV3-SP-N-FLAG
    质粒:
    限制性酶切位点:
    Tag序列:FLAG Tag Sequence: GATTACAAGGATGACGACGATAAG
    序列信息:
    测序引物:T7(TAATACGACTCACTATAGGG) BGH(TAGAAGGCACAGTCGAGG)
    ( We provide with CD40LG qPCR primers for gene expression analysis, RP300146 )
    启动子:Enhanced CMV mammalian cell promoter
    Application:Stable or Transient mammalian expression
    抗生素(大肠杆菌):Kanamycin
    抗生素(哺乳动物细胞):Hygromycin
    运输方式:Each tube contains lyophilized plasmid.
    储存方法:The lyophilized plasmid can be stored at room temperature for three months.
    FLAG Tag Info

    FLAG-tag, or FLAG octapeptide, is a polypeptide protein tag that can be added to a protein using recombinant DNA technology. It can be used for affinity chromatography, then used to separate recombinant, overexpressed protein from wild-type protein expressed by the host organism. It can also be used in the isolation of protein complexes with multiple subunits.

    A FLAG-tag can be used in many different assays that require recognition by an antibody. If there is no antibody against the studied protein, adding a FLAG-tag to this protein allows one to follow the protein with an antibody against the FLAG sequence. Examples are cellular localization studies by immunofluorescence or detection by SDS PAGE protein electrophoresis.

    The peptide sequence of the FLAG-tag from the N-terminus to the C-terminus is: DYKDDDDK (1012 Da). It can be used in conjunction with other affinity tags, for example a polyhistidine tag (His-tag), HA-tag or Myc-tag. It can be fused to the C-terminus or the N-terminus of a protein. Some commercially available antibodies (e.g., M1/4E11) recognize the epitope only when it is present at the N-terminus. However, other available antibodies (e.g., M2) are position-insensitive.

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    研究背景

    The cluster of differentiation (CD) system is commonly used as cell markers in immunophynotyping. Different kinds of cells in the immune system can be identified through the surface CD molecules which associating with the immune function of the cell. There are more than 320 CD unique clusters and subclusters have been identified. Some of the CD molecules serve as receptors or ligands important to the cell through initiating a signal cascade which then alter the behavior of the cell. Some CD proteins do not take part in cell signal process but have other functions such as cell adhesion. CD154, also known as CD40 ligand or CD40L, is a member of the TNF superfamily. While CD154 was originally found on T cell surface, its expression has since been found on a wide variety of cells, including platelets, mast cells, macrophages and NK cells. CD154's ability is achieved through binding to the CD40 on antigen- presenting cells (APC). In the macrophage cells, the primary signal for activation is IFN-γ from Th1 type CD4 T cells. The secondary signal is CD40L on the T cell, which interacting with the CD40 molecules, helping increase the level of activation.

    Immune Checkpoint
    Immune Checkpoint Detection: Antibodies   Immune Checkpoint Detection: ELISA Antibodies   Immune Checkpoint Detection: WB Antibodies
    Immune Checkpoint Proteins
    Immune Checkpoint Targets   Co-stimulatory Immune Checkpoint Targets

    Immunotherapy   Cancer Immunotherapy   Targeted Therapy

    参考资料
  • Zola H, et al. (2007) CD molecules 2006-human cell differentiation molecules. J Immunol Methods. 318 (1-2): 1-5.
  • Ho IC, et al. (2009) GATA3 and the T-cell lineage: essential functions before and after T-helper-2-cell differentiation. Nat Rev Immunol. 9 (2): 125-35.
  • Matesanz-Isabel J, et al. (2011) New B-cell CD molecules. Immunology Letters.134 (2): 104-12.
  • Grewal IS, et al. (1998) CD40 and CD154 in cell-mediated immunity. Annual Review of Immunology. 16: 111-35.
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    请注意:所有产品都是“仅用于科研,而不能用于诊断或治疗用途”