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人 Amphiregulin / AREG 基因全長cDNA ORF克隆 (表達載體), N-Flag 標籤

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Human AREG cDNA Clone產品資訊
註冊碼:NM_001657.2
cDNA基因長度:2073 bp
cDNA基因描述:Full length Clone DNA of Homo sapiens amphiregulin with N terminal Flag tag.
基因別名:AR,AREGB,CRDGF,SDGF
分子種屬:Human
載體:pCMV3-SP-N-FLAG
Plasmid:pCMV3-BMX-Myc
限制性酶切位點:KpnI + NotI(6kb+2.07kb)
Tag序列:FLAG Tag Sequence: GATTACAAGGATGACGACGATAAG
序列資訊:Identical with the Gene Bank Ref. ID sequence.
Sequencing primers:T7(TAATACGACTCACTATAGGG) BGH(TAGAAGGCACAGTCGAGG)
Promoter:Enhanced CMV mammalian cell promoter
Application:Stable or Transient mammalian expression
Antibiotic in E.coli:Kanamycin
Antibiotic in mammalian cell:Hygromycin
運輸條件:Each tube contains lyophilized plasmid.
儲存方法:The lyophilized plasmid can be stored at ambient 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

Amphiregulin(AREG), also known as colorectum cell-derived growth factor, CRDGF, SDGF and AREG, is a member of the epidermal growth factor family and the amphiregulin family. Members of EGF family are cytokines that include 10 proteins such as EGF, TGFb, HBEGF, and the various heregulins. Amphiregulin is a single-pass membrane protein and contains one EGF-like domain. It plays a key role in epithelial development in various organs. Amphiregulin has a realationship with epidermal growth factor (EGF) and transforming growth factor alpha (TGF-alpha). It is an autocrine growth factor as well as a mitogen for astrocytes, Schwann cells, and fibroblasts. As a bifunctional growth-modulating glycoprotein, amphiregulin inhibits growth of several human carcinoma cells in culture and stimulates proliferation of human fibroblasts and certain other tumor cells. Amphiregulin also may play a protective role in bleomycin-induced pneumopathy, probably through the activation of survival signals.

參考資料
  • Shoyab M, et al. (1989) Structure and function of human amphiregulin: a member of the epidermal growth factor family. Science. 243 (4894): 1074-6.
  • Plowman GD, et al. (1990) The amphiregulin gene encodes a novel epidermal growth factor-related protein with tumor-inhibitory activity. Mol Cell Biol. 10 (5): 1969-81.
  • Culouscou JM, et al. (1993) Colorectum cell-derived growth factor (CRDGF) is homologous to amphiregulin, a member of the epidermal growth factor family. Growth Factors. 7 (3): 195-205.
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    貨號: HG10558-NF
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