Associated products


Our Abpromise guarantee covers the use of ab176143 in the following tested applications.

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

  • Applications

    Blocking - Blocking peptide for Anti-GRP78 BiP antibody [EPR4040(2)] (ab108613)

  • Form

  • Additional notes

    - First try to dissolve a small amount of peptide in either water or buffer. The more charged residues on a peptide, the more soluble it is in aqueous solutions.
    - If the peptide doesn’t dissolve try an organic solvent e.g. DMSO, then dilute using water or buffer.
    - Consider that any solvent used must be compatible with your assay. If a peptide does not dissolve and you need to recover it, lyophilise to remove the solvent.
    - Gentle warming and sonication can effectively aid peptide solubilisation. If the solution is cloudy or has gelled the peptide may be in suspension rather than solubilised.
    - Peptides containing cysteine are easily oxidised, so should be prepared in solution just prior to use.

Preparation and Storage

  • Stability and Storage

    Shipped at 4°C. Store at -20°C.

General Info

  • Alternative names

    • 78 kDa glucose regulated protein
    • 78 kDa glucose-regulated protein
    • AL022860
    • AU019543
    • BIP
    • D2Wsu141e
    • D2Wsu17e
    • Endoplasmic reticulum lumenal Ca(2+)-binding protein grp78
    • Endoplasmic reticulum lumenal Ca2+ binding protein grp78
    • Epididymis secretory sperm binding protein Li 89n
    • FLJ26106
    • Glucose Regulated Protein 78
    • Glucose Regulated Protein 78kDa
    • GRP 78
    • GRP-78
    • GRP78
    • GRP78_HUMAN
    • Heat shock 70 kDa protein 5
    • Heat Shock 70kDa Protein 5
    • Heat shock protein family A (Hsp70) member 5
    • HEL S 89n
    • Hsce70
    • HSPA 5
    • HSPA5
    • Immunoglobulin Heavy Chain Binding Protein
    • Immunoglobulin heavy chain-binding protein
    • mBiP
    • MIF2
    • Sez7
    see all
  • Function

    Probably plays a role in facilitating the assembly of multimeric protein complexes inside the endoplasmic reticulum. Involved in the correct folding of proteins and degradation of misfolded proteins via its interaction with DNAJC10, probably to facilitate the release of DNAJC10 from its substrate.
  • Involvement in disease

    Autoantigen in rheumatoid arthritis.
  • Sequence similarities

    Belongs to the heat shock protein 70 family.
  • Cellular localization

    Endoplasmic reticulum lumen. Melanosome. Cytoplasm. Identified by mass spectrometry in melanosome fractions from stage I to stage IV.
  • Information by UniProt


ab176143 has not yet been referenced specifically in any publications.

Customer reviews and Q&As


These two peptides have different amino acid sequences.
Ab176142 was used to raise ab108615 and ab176143 is the immunogen peptide for ab108613.
Unfortunately the exact protein sequences are considered to be proprietary and I am not able to share them.

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