• Product name

  • Description

    Rabbit polyclonal to Hsp40
  • Host species

  • Tested applications

    Suitable for: WB, IPmore details
  • Species reactivity

    Reacts with: Human
  • Immunogen

    Synthetic peptide within Human Hsp40 aa 290-340. The exact sequence is proprietary.
    Database link: P25685

  • Positive control

    • WB: HeLa, HEK-293T and Jurkat whole cell lysates. IP: HEK-293T whole cell lysate.


  • Form

  • Storage instructions

    Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C long term. Avoid freeze / thaw cycle.
  • Storage buffer

    Preservative: 0.09% Sodium azide
    Constituent: Tris citrate/phosphate

    pH 7 to 8
  • Concentration information loading...
  • Purity

    Immunogen affinity purified
  • Purification notes

    ab226387 was affinity purified using an epitope specific to Hsp40 immobilized on solid support.
  • Clonality

  • Isotype

  • Research areas


Our Abpromise guarantee covers the use of ab226387 in the following tested applications.

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

Application Abreviews Notes
WB 1/1000 - 1/5000. Predicted molecular weight: 38 kDa.
IP Use at 2-10 µg/mg of lysate.


  • Function

    Interacts with HSP70 and can stimulate its ATPase activity. Stimulates the association between HSC70 and HIP.
  • Sequence similarities

    Contains 1 J domain.
  • Cellular localization

    Cytoplasm. Nucleus. Nucleus > nucleolus. Translocates rapidly from the cytoplasm to the nucleus, and especially to the nucleoli, upon heat shock.
  • Information by UniProt
  • Database links

  • Alternative names

    • DnaJ (Hsp40) homolog subfmaily B member 1 antibody
    • DNAJ 1 antibody
    • DNAJ B1 antibody
    • DnaJ heat shock protein family (Hsp40) member B1 antibody
    • DnaJ homolog subfamily B member 1 antibody
    • DnaJ protein homolog 1 antibody
    • DNAJ1 antibody
    • DNAJB 1 antibody
    • Dnajb1 antibody
    • DNAJB1 protein antibody
    • DNJB1_HUMAN antibody
    • HDJ 1 antibody
    • HDJ-1 antibody
    • HDJ1 antibody
    • Heat shock 40 kDa protein 1 antibody
    • Heat shock 40kD protein 1 antibody
    • Heat shock protein 40 antibody
    • Hsp 40 antibody
    • HSP40 antibody
    • HSPF 1 antibody
    • HSPF1 antibody
    • Human DnaJ protein 1 antibody
    • Radial spoke 16 homolog B antibody
    • RSPH16B antibody
    • Sis1 antibody
    see all


  • All lanes : Anti-Hsp40 antibody (ab226387) at 0.4 µg/ml

    Lane 1 : HeLa (human epithelial cell line from cervix adenocarcinoma) whole cell lysate
    Lane 2 : HEK-293T (human epithelial cell line from embryonic kidney transformed with large T antigen) whole cell lysate
    Lane 3 : Jurkat (human T cell leukemia cell line from peripheral blood) whole cell lysate

    Lysates/proteins at 50 µg per lane.

    Developed using the ECL technique.

    Predicted band size: 38 kDa

    Exposure time: 3 minutes

    Lysates prepared using NETN lysis buffer.

  • Hsp40 was immunoprecipitated from HEK-293T (human epithelial cell line from embryonic kidney transformed with large T antigen) whole cell lysate (prepared using NETN lysis buffer; 1 mg for IP, 20% of IP loaded) with ab226387 at 6 µg/mg lysate. Western blot was performed from the immunoprecipitate using ab226387 at 1 µg/ml.

    Lane 1: ab226387 IP in HEK-293T whole cell lysate.

    Lane 2: Control IgG IP in HEK-293T whole cell lysate.

    Detection:  Chemiluminescence with exposure time of 3 minutes.


ab226387 has not yet been referenced specifically in any publications.

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