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  4. Recombinant Escherichia coli 30S ribosomal protein S1 (rpsA)

Recombinant Escherichia coli 30S ribosomal protein S1 (rpsA)

  • 中文名稱：
    大腸桿菌rpsA重組蛋白
  • 貨號：
    CSB-YP314176ENV
  • 規格：
  • 來源：
    Yeast
  • 其他：
  • 中文名稱：
    大腸桿菌rpsA重組蛋白
  • 貨號：
    CSB-EP314176ENV-B
  • 規格：
  • 來源：
    E.coli
  • 共軛：
    Avi-tag Biotinylated

    E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.

  • 其他：
  • 中文名稱：
    大腸桿菌rpsA重組蛋白
  • 貨號：
    CSB-BP314176ENV
  • 規格：
  • 來源：
    Baculovirus
  • 其他：
  • 中文名稱：
    大腸桿菌rpsA重組蛋白
  • 貨號：
    CSB-MP314176ENV
  • 規格：
  • 來源：
    Mammalian cell
  • 其他：

產品詳情

  • 純度：
    >85% (SDS-PAGE)
  • 基因名：
    rpsA
  • Uniprot No.：
  • 別名：
    rpsA; ssyF; b0911; JW0894; 30S ribosomal protein S1; Bacteriophage Q beta RNA-directed RNA polymerase subunit I; Small ribosomal subunit protein bS1
  • 種屬：
    Escherichia coli (strain K12)
  • 蛋白長度：
    full length protein
  • 表達區域：
    1-557
  • 氨基酸序列
    MTESFAQLFE ESLKEIETRP GSIVRGVVVA IDKDVVLVDA GLKSESAIPA EQFKNAQGEL EIQVGDEVDV ALDAVEDGFG ETLLSREKAK RHEAWITLEK AYEDAETVTG VINGKVKGGF TVELNGIRAF LPGSLVDVRP VRDTLHLEGK ELEFKVIKLD QKRNNVVVSR RAVIESENSA ERDQLLENLQ EGMEVKGIVK NLTDYGAFVD LGGVDGLLHI TDMAWKRVKH PSEIVNVGDE ITVKVLKFDR ERTRVSLGLK QLGEDPWVAI AKRYPEGTKL TGRVTNLTDY GCFVEIEEGV EGLVHVSEMD WTNKNIHPSK VVNVGDVVEV MVLDIDEERR RISLGLKQCK ANPWQQFAET HNKGDRVEGK IKSITDFGIF IGLDGGIDGL VHLSDISWNV AGEEAVREYK KGDEIAAVVL QVDAERERIS LGVKQLAEDP FNNWVALNKK GAIVTGKVTA VDAKGATVEL ADGVEGYLRA SEASRDRVED ATLVLSVGDE VEAKFTGVDR KNRAISLSVR AKDEADEKDA IATVNKQEDA NFSNNAMAEA FKAAKGE
  • 蛋白標簽：
    Tag?type?will?be?determined?during?the?manufacturing?process.
    The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
  • 產品提供形式：
    Lyophilized powder
    Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
  • 復溶：
    We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
  • 儲存條件：
    Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
  • 保質期：
    The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
    Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
  • 貨期：
    Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
    Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
  • 注意事項：
    Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
  • Datasheet ：
    Please contact us to get it.

產品評價

靶點詳情

  • 功能：
    Required for translation of most natural mRNAs except for leaderless mRNA. Binds mRNA upstream of the Shine-Dalgarno (SD) sequence and helps it bind to the 30S ribosomal subunit; acts as an RNA chaperone to unfold structured mRNA on the ribosome but is not essential for mRNAs with strong SDs and little 5'-UTR structure, thus it may help fine-tune which mRNAs that are translated. Unwinds dsRNA by binding to transiently formed ssRNA regions; binds about 10 nucleotides. Has a preference for polypyrimidine tracts. Negatively autoregulates its own translation.; It is not clear if it plays a role in trans-translation (a process which rescues stalled ribosomes). Evidence for its role; binds to tmRNA with very high affinity, is required for binding of tmRNA to 30S subunit. Thought to play a role only in translation of the tmRNA in vitro. Evidence against its role; overexpression of whole protein or various S1 fragments inhibits translation, they have no effect on trans-translation, and an in vitro system with S1-less ribosomes performs trans-translation. In trans-translation Ala-aminoacylated transfer-messenger RNA (tmRNA, product of the ssrA gene; the 2 termini fold to resemble tRNA(Ala) while it encodes a short internal open reading frame (the tag peptide)) acts like a tRNA, entering the A-site of the ribosome and displacing the stalled mRNA (which is subsequently degraded). The ribosome then switches to translate the ORF on the tmRNA, the nascent peptide is terminated with the 'tag peptide' encoded by the tmRNA and thus targeted for degradation.; In case of infection by bacteriophage Qbeta, part of the viral RNA-dependent RNA polymerase complex; this subunit is required for RNA replication initiation activity during synthesis of (-) strand RNA from the (+) strand genomic RNA but not for (+) strand synthesis from the (-) strand. Binds an approximately 70 nucleotide RNA internal to the viral replicase gene (the M-site). Others have reported it is not involved in RNA replication initiation but rather in termination of RNA synthesis and is required for termination whether it is the (+) or (-) strand that is being synthesized.; In case of infection by bacteriophage T4, plays a significant role in substrate choice by viral endoribonuclease RegB.
  • 基因功能參考文獻：
    1. r-protein S1 endows the 30S with an RNA chaperone activity that is essential for the docking and the unfolding of structured mRNAs, and for the correct positioning of the initiation codon inside the decoding channel PMID: 24339747
    2. Ribosomal protein S1 unwinds double-stranded RNA in multiple steps. PMID: 22908248
    3. S1 binding has a weak but detectable effect on the secondary structure of DsrA or rpoS mRNA. PMID: 16890206
    4. The last S1 motif is dispensable for translation and autoregulation: the defects seen with ssyF29 cells reflect an IS10R-mediated destabilization of the rpsA mRNA PMID: 17616604
  • 亞細胞定位：
    Cytoplasm.
  • 蛋白家族：
    Bacterial ribosomal protein bS1 family
  • 數據庫鏈接：


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