Anti-HSF1 (phospho S303)抗体(ab105084)

概述

  • 产品名称Anti-HSF1 (phospho S303)抗体
    参阅全部 HSF1 一抗
  • 描述
    兔多克隆抗体to HSF1 (phospho S303)
  • 经测试应用适用于: WB, IHC-Pmore details
  • 种属反应性
    与反应: Human
    预测可用于: Rat, Cow, Dog, Pig, Chimpanzee, Monkey, Macaque Monkey, Gorilla
  • 免疫原

    Synthetic peptide conjugated to KLH derived from within residues 250 - 350 of Human HSF1, phosphorylated at S303.

  • 阳性对照
    • This antibody gave a positive signal in MEF1 TNF Treated whole cell lysate and human breast adenocarcinoma tissue sections

性能

应用

Our Abpromise guarantee covers the use of ab105084 in the following tested applications.

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

应用 Ab评论 说明
WB Use a concentration of 1 µg/ml. Detects a band of approximately 57 kDa (predicted molecular weight: 57 kDa).
IHC-P Use a concentration of 1 mg/ml. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.

靶标

  • 功能DNA-binding protein that specifically binds heat shock promoter elements (HSE) and activates transcription. In higher eukaryotes, HSF is unable to bind to the HSE unless the cells are heat shocked.
  • 序列相似性Belongs to the HSF family.
  • 结构域the 9aaTAD motif is a transactivation domain present in a large number of yeast and animal transcription factors.
  • 翻译后修饰Phosphorylated on multiple serine residues, a subset of which are involved in stress-related regulation of transcription activation. Constitutive phosphorylation represses transcriptional activity at normal temperatures. Levels increase on specific residues heat-shock and enhance HSF1 transactivation activity. Phosphorylation on Ser-307 derepresses activation on heat-stress and in combination with Ser-303 phosphorylation appears to be involved in recovery after heat-stress. Phosphorylated on Ser-230 by CAMK2, in vitro. Cadmium also enhances phosphorylation at this site. Phosphorylation on Ser-303 is a prerequisite for HSF1 sumoylation. Phosphorylation on Ser-121 inhibits transactivation and promotes HSP90 binding. Phosphorylation on Thr-142 also mediates transcriptional activity induced by heat. Phosphorylation on Ser-326 plays an important role in heat activation of HSF1 transcriptional activity.
    Sumoylated with SUMO1 and SUMO2 on heat-shock. Heat-inducible sumoylation occurs after 15 min of heat-shock, after which levels decrease and at 4 hours, levels return to control levels. Sumoylation has no effect on HSE binding nor on transcriptional activity. Phosphorylation on Ser-303 is a prerequisite for sumoylation.
  • 细胞定位Cytoplasm. Nucleus. Cytoplasmic during normal growth. On activation, translocates to nuclear stress granules. Colocalizes with SUMO1 in nuclear stress granules.
  • Information by UniProt
  • 数据库链接
  • 别名
    • Heat shock factor 1 antibody
    • Heat shock factor protein 1 antibody
    • Heat shock transcription factor 1 antibody
    • HSF 1 antibody
    • hsf1 antibody
    • HSF1_HUMAN antibody
    • HSTF 1 antibody
    • HSTF1 antibody
    see all

Anti-HSF1 (phospho S303) antibody 图像

  • All lanes : Anti-HSF1 (phospho S303) antibody (ab105084) at 1 µg/ml

    Lane 1 : 30min TNFalpha stimulated MEF Whole Cell Lysate
    Lane 2 : 30min TNFalpha stimulated MEF Whole Cell Lysate with Immunizing peptide at 1 µg/ml

    Lysates/proteins at 10 µg per lane.

    Secondary
    Goat Anti-Rabbit IgG H&L (HRP) preadsorbed (ab97080) at 1/5000 dilution
    Developed using the ECL technique

    Performed under reducing conditions.

    Predicted band size : 57 kDa


    Exposure time : 4 minutes
  • IHC image of ab105084 staining in human breast adenocarcinom formalin fixed paraffin embedded tissue section, performed on a Leica BondTM system using the standard protocol F. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6, epitope retrieval solution 1) for 20 mins. The section was then incubated with AB105084, 1µg/ml, for 15 mins at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX.

    For other IHC staining systems (automated and non-automated) customers should optimize variable parameters such as antigen retrieval conditions, primary antibody concentration and antibody incubation times.

Anti-HSF1 (phospho S303) antibody (ab105084)参考文献

ab105084 has not yet been referenced specifically in any publications.

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