Anti-Proteasome 20S alpha 2 抗体 [MCP21] (ab22666)


  • 製品名
    Anti-Proteasome 20S alpha 2 antibody [MCP21]
    Proteasome 20S alpha 2 一次抗体 製品一覧
  • 製品の詳細
    Mouse monoclonal [MCP21] to Proteasome 20S alpha 2
  • 由来種
  • アプリケーション
    適用あり: Flow Cyt, WB, IP, Othermore details
  • 種交差性
    交差種: Rabbit, Human
    非交差種: Mouse, Rat
  • 免疫原

    Full length protein corresponding to Human Proteasome 20S alpha 2.
    Database link: P25787

  • ポジティブ・コントロール
    • human placental proteasome preparation and HeLa cell lysate


  • 製品の状態
  • 保存方法
    Shipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.
  • バッファー
    Preservative: 0.01M Sodium Azide
    Constituents: PBS
  • Concentration information loading...
  • 精製度
    IgG fraction
  • ポリ/モノ
  • クローン名
  • アイソタイプ
  • 研究分野


Our Abpromise guarantee covers the use of ab22666 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

アプリケーション Abreviews 特記事項
Flow Cyt Use 1µg for 106 cells.

ab170190 - Mouse monoclonal IgG1, is suitable for use as an isotype control with this antibody.


WB 1/1000. Detects a band of approximately 27 kDa.
IP Use at an assay dependent concentration.
AP Use at an assay dependent concentration.
Other Use at an assay dependent concentration.


  • 機能
    The proteasome is a multicatalytic proteinase complex which is characterized by its ability to cleave peptides with Arg, Phe, Tyr, Leu, and Glu adjacent to the leaving group at neutral or slightly basic pH. The proteasome has an ATP-dependent proteolytic activity. PSMA2 may have a potential regulatory effect on another component(s) of the proteasome complex through tyrosine phosphorylation.
  • 配列類似性
    Belongs to the peptidase T1A family.
  • 翻訳後修飾
    Phosphorylated on tyrosine residues; which may be important for nuclear import.
  • 細胞内局在
    Cytoplasm. Nucleus.
  • Information by UniProt
  • 参照データベース
  • 別名
    • HC3 antibody
    • Macropain subunit C3 antibody
    • MU antibody
    • Multicatalytic endopeptidase complex subunit C3 antibody
    • PMSA2 antibody
    • Proteasome (prosome macropain) subunit alpha type 2 antibody
    • Proteasome alpha 2 subunit antibody
    • Proteasome component C3 antibody
    • Proteasome subunit alpha type 2 antibody
    • Proteasome subunit alpha type-2 antibody
    • Proteasome subunit HC3 antibody
    • PSA2_HUMAN antibody
    • PSC2 antibody
    • PSC3 antibody
    • PSMA 2 antibody
    • psmA2 antibody
    see all


  • Luminograph of human placental proteasome preparation after 2D PADE followed by blotting onto nitrocellulose and probing with ab22666 (1/1000). ECL exposure , 1 minute exposure).
  • All lanes : Anti-Proteasome 20S alpha 2 antibody [MCP21] (ab22666) at 1/1000 dilution

    Lane 1 : 40ug SU-DHL1 whole cell lysate
    Lane 2 : 40ug Karpas 299 whole cell lysate
    Lane 3 : 40ug JB-6 whole cell lysate
    Lane 4 : 40ug SUP-M2 whole cell lysate
    Lane 5 : 40ug Mac-1 whole cell lysate
    Lane 6 : 40ug Jurkat whole cell lysate

    All lanes : Biotinylated polyclonal anti-mouse antibody.

    Developed using the ECL technique.

    Performed under reducing conditions.

    Observed band size: 27 kDa (why is the actual band size different from the predicted?)

    Exposure time: 1 minute

    See Abreview

  • Overlay histogram showing HeLa cells stained with ab22666 (red line). The cells were fixed with 80% methanol (5 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab22666, 1µg/1x106 cells) for 30 min at 22ºC. The secondary antibody used was DyLight® 488 goat anti-mouse IgG (H+L) (ab96879) at 1/500 dilution for 30 min at 22ºC. Isotype control antibody (black line) was mouse IgG1 [ICIGG1] (ab91353, 2µg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed.


This product has been referenced in:
  • Wiemhoefer A  et al. Tripeptidyl Peptidase II Mediates Levels of Nuclear Phosphorylated ERK1 and ERK2. Mol Cell Proteomics 14:2177-93 (2015). Read more (PubMed: 26041847) »
  • Juenemann K  et al. Expanded polyglutamine-containing N-terminal huntingtin fragments are entirely degraded by mammalian proteasomes. J Biol Chem 288:27068-84 (2013). Read more (PubMed: 23908352) »

See all 2 Publications for this product

レビューと Q&A

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Abcam guarantees this product to work in the species/application used in this Abreview.
Western blot
Human Cell lysate - whole cell (T cell lymphoma)
Loading amount
40 µg
T cell lymphoma
Blocking step
Milk as blocking agent for 1 hour(s) and 0 minute(s) · Concentration: 5%

Dr. Carlo Vigliani

Verified customer

投稿 Sep 07 2006