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p53 抗体 (meLys370)

TP53 适用: 人 WB, ELISA 宿主: 兔 Polyclonal unconjugated
产品编号 ABIN4902067
发货至: 中国
  • 抗原 See all p53 (TP53) 抗体
    p53 (TP53) (Tumor Protein P53 (TP53))
    抗原表位
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    meLys370
    适用
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    宿主
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    克隆类型
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    多克隆
    标记
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    This p53 antibody is un-conjugated
    应用范围
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    Western Blotting (WB), ELISA
    原理
    Rabbit polyclonal to p53 (Mono Methyl Lys370).
    特异性
    Mono-Methyl-p53 (K370) Polyclonal Antibody detects endogenous levels of p53 around the methylation site of K370 protein.
    产品特性
    Rabbit Polyclonal to p53 (Mono Methyl Lys370).
    纯化方法
    The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
    免疫原
    Synthesized peptide derived from human p53 around the methylation site of K370.
    亚型
    IgG
    Top Product
    Discover our top product TP53 Primary Antibody
  • 应用备注
    WB 1:500-1:2000
    ELISA 1:10000
    说明

    Ubiquitous. Isoforms are expressed in a wide range of normal tissues but in a tissue-dependent manner. Isoform 2 is expressed in most normal tissues but is not detected in brain, lung, prostate, muscle, fetal brain, spinal cord and fetal liver. Isoform 3 is expressed in most normal tissues but is not detected in lung, spleen, testis, fetal brain, spinal cord and fetal liver. Isoform 7 is expressed in most normal tissues but is not detected in prostate, uterus, skeletal muscle and breast. Isoform 8 is detected only in colon, bone marrow, testis, fetal brain and intestine. Isoform 9 is expressed in most normal tissues but is not detected in brain, heart, lung, fetal liver, salivary gland, breast or intestine.

    限制
    仅限研究用
  • 生效 #101268 (Western Blotting)
    '独立验证'标志
    by
    Department of Prevention and Therapy of Chronic Diseases, Institute for Advanced Biosciences, CNRS UMR5309
    No.
    #101268
    日期
    2017.08.03
    抗原
    p53K370me
    Lot Number
    B1001
    Method validated
    Western Blotting
    Positive Control

    p53, in vitro specifically p53K370me1 methylated using methyltransferase SMYD2

    ectopic SMYD-methylated wildtype p53 from 293T cell extracts

    Negative Control

    p53, in vitro methylated using methyltransferases G9a and SETD8

    p53ΔCTD, lacking C-terminal domain containing known methylable lysines

    p53K370R, lacking the lysine 370 methylation site, mutated into arginine

    Notes

    Passed. ABIN4902067 specifically recognizes monomethylated p53K370me1 and to a lesser extent p53Kme1.

    '独立验证'标志
    Validation Images
    Full Methods
    Primary Antibody
    ABIN4902067
    Secondary Antibody
    HRP-conjugated goat anti-rabbit or anti-mouse antibody (Biorad)
    Full Protocol
    • In vitro p53 methylation assay:
      • Clone SMYD2 and p53 from human cDNA library into pGex6p1 vector.
      • Perform p53 mutagenesis using QuickChange II site-directed mutagenesis kit (Agilent, 200523).
      • Transform vectors into BL21 pLys bacteria (Agilent) and induced protein expression with 0.1mM IPTG in 250mL culture ON at 19°C.
      • Purify proteins by GST pulldown and quantify using Bradford assay and Coomassie gel staining.
      • For the in vitro methylation assays incubate 1 to 2µg recombinant protein with 1µg of recombinant methyltransferases and 2µCi 3H-AdoMet (American Radiolabelled Chemicals) in buffer containing 50mM Tris-HCl pH8.0, 10% glycerol, 20mM KCl, 5mM MgCl2, and 1mMPMSF at ON at 30°C.
      • Resolve the reaction mixture by SDS–PAGE, followed by autoradiography and Coomassie stain (Pierce).
    • "In cellulo” p53 methylation assay:
      • Subclone SMYD2 and p53 constructs from pGex6p1 vectors into pcagFLAG (SMYD2) or pCDNA3.1HA (p53).
      • Transfect plasmids into 293T cells using Lipofectamine 2000 (ThermoFisher) according to supplier’s protocol.
      • Harvest cells 36h post-transfection to allow methylation of ectopic p53 by SMYD2 in cells.
    • Western blot:
      • Separate 20µg of each sample on freshly cast SDS-PAGE gel in a gel electrophoresis chamber (BioRad) for 1h at 140V and RT.
      • Transfer proteins onto ethanol-activated 0.2µm Hybond PVDF membrane (Amersham) with a semi-dry Trans-Blot Turbo (BioRad) for 30min at 20V.
      • Block the membrane using 5% milk in TBS-Tween 0.1% for 1h at RT.
      • Incubate the membrane with primary rabbit anti-p53 meLys370 antibody (antibodies-online, ABIN4902067, LOT B1001), mouse anti-HA antibody (Sigma), or mouse anti-Flag tag antibody (Sigma) diluted 1:1000 in 1% BSA TBS-Tween 0.1% ON at 4°C.
      • Wash the membrane 3x for 10min in TBS-Tween 0.1%.
      • Incubate the membrane with secondary HRP-conjugated goat anti-rabbit or anti-mouse antibody (Biorad) diluted 1:3000 in 1% BSA TBS-Tween 0.1% for 1h at RT.
      • Wash the membrane 3x for 10min in TBS-Tween 0.1%.
      • Visualize protein bands using ECL RevelBlot intense (Ozyme) and signal detection on Hyperfilm ECL 18 x24cm (Amersham).
    Experimental Notes
    • Antibody ABIN4902067 recognizes greatly its specific substrate in vitro: it shows a strong signal when SMYD2 is present, implying monomethylation of K370. The signal is lost when using p53K370R and p53ΔCTD mutants. However, ABIN4902067 also recognizes to a lesser extent in vitro other p53 methylation such as p53 K373me1/2 and p53K382me2 caused by G9a and SETD8 respectively.
    • The antibody does recognize unmethylated p53 when using a large quantity of the recombinant protein (not shown).
    • ABIN4902067 gives a very clean and specific signal when using ectopic p53 from 293T cell extract: only p53 methylated by SMYD2 is detected, not the p53K370R mutant. The antibody can even be used without an initial immunoprecipitation of total p53 as observable in our figure.
    • The binding affinity of ABIN4902067 can be ordered as follows: p53K370me1>p53Kme1>>>p53.
  • 状态
    Liquid
    浓度
    1 mg/mL
    缓冲液
    Liquid in PBS containing 50 % glycerol, 0.5 % BSA and 0.02 % sodium azide.
    储存液
    Sodium azide
    注意事项
    This product contains Sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
    注意事项
    Avoid repeated freeze/thaw cycles.
    储存条件
    -20 °C
    储存方法
    Store at -20°C, and avoid repeat freeze-thaw cycles.
  • 抗原
    p53 (TP53) (Tumor Protein P53 (TP53))
    别名
    p53 (TP53 产品)
    基因ID
    7157
    UniProt
    P04637
    途径
    p53 Pathway, MAPK Pathway, PI3K-Akt Signaling, Apoptosis, AMPK Signaling, Chromatin Binding, ER-Nucleus Signaling, Positive Regulation of Endopeptidase Activity, Hepatitis C, Protein targeting to Nucleus, Autophagy, Warburg Effect
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