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人々 DUSP3/VHR Gene ORF cDNA clone expression plasmid, N-His タグ

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Human DUSP3 cDNA クローン製品情報
Gene_bank_ref_id:NM_004090.3
cDNA サイズ:558bp
cDNA の説明:Full length Clone DNA of Homo sapiens dual specificity phosphatase 3 with N terminal His tag.
遺伝子の別名:DUSP3, VHR
:Human
ベクター:pCMV3-N-His
Plasmid:
制限サイト:
タグ シーケンス:His Tag Sequence: CACCATCACCACCATCATCACCACCATCAC
シーケンスの説明:
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
Shipping_carrier:Each tube contains lyophilized plasmid.
保存:The lyophilized plasmid can be stored at room temperature for three months.
His Tag Info

A polyhistidine-tag is an amino acid motif in proteins that consists of at least five histidine (His) residues, often at the N- or C-terminus of the protein.

Polyhistidine-tags are often used for affinity purification of polyhistidine-tagged recombinant proteins expressed in Escherichia coli and other prokaryotic expression systems.

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背景

Vaccinia H1-related phosphatase (VHR) is classified as a dual-specificity phosphatase (DUSP), and the other name is dual-specificity phosphatase 3 (DUSP3). DUSPs are a heterogeneous group of protein phosphatases that can dephosphorylate both phosphotyrosine and phosphoserine/phosphothreonine residues within the one substrate. Unlike typical DUSPs, VHR lacks mitogen-activated protein kinase (MAPK)-binding domain, and shows poor activity against MAPKs. VHR often act on bisphosphorylated protein substrates, it displays a strong preference for dephosphorylating phosphotyrosine residues over phosphothreonine residues. VHR has been identified as a novel regulator of extracellular regulated kinases (ERKs). VHR is responsible for the rapid inactivation of ERK following stimulation and for its repression in quiescent cells. VHR is a negative regulator of the Erk and Jnk pathways in T cells and, therefore, may play a role in aspects of T lymphocyte physiology that depend on these kinases.

参考文献
  • Todd J.L, et al. (1999) Extracellular regulated kinases (ERK) 1 and ERK2 are authentic substrates for the dual-specificity protein-tyrosine phosphatase VHR. A novel role in down-regulating the ERK pathway. J. Biol. Chem. 274: 13271-80.
  • Alonso A, et al. (2001) Inhibitory role for dual specificity phosphatase VHR in T cell antigen receptor and CD28-induced Erk and Jnk activation. J Biol Chem. 276(7): 4766-71.
  • Schumacher MA, et al. (2002) Structural basis for the recognition of a bisphosphorylated MAP kinase peptide by human VHR protein Phosphatase. Biochemistry. 41(9): 3009-17.
  • Patterson KI, et al. (2009) Dual-specificity phosphatases: critical regulators with diverse cellular targets. Biochem J. 2009 Mar 15;418(3): 475-89.
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    カタログ: HG10114-NH
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