Associated products


Our Abpromise guarantee covers the use of ab66681 in the following tested applications.

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

  • 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.

  • Concentration information loading...

Preparation and Storage

  • Stability and Storage

    Shipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.

    Information available upon request.

General Info

  • Alternative names

    • 3T3-L1 lipid-binding protein
    • 422/aP2
    • A-FABP
    • adipocyte
    • Adipocyte lipid binding protein
    • Adipocyte lipid-binding protein
    • Adipocyte protein AP2
    • Adipocyte-type fatty acid-binding protein
    • AFABP
    • ALBP
    • ALBP/Ap2
    • aP2
    • Epididymis secretory protein Li 104
    • FABP
    • FABP4
    • Fatty acid binding protein 4
    • Fatty acid binding protein 4 adipocyte
    • Fatty acid binding protein adipocyte
    • Fatty acid-binding protein
    • Fatty acid-binding protein 4
    • HEL S 104
    • Lbpl
    • Myelin P2 protein homolog
    • P15
    • P2 adipocyte protein
    • Protein 422
    see all
  • Function

    Lipid transport protein in adipocytes. Binds both long chain fatty acids and retinoic acid. Delivers long-chain fatty acids and retinoic acid to their cognate receptors in the nucleus.
  • Sequence similarities

    Belongs to the calycin superfamily. Fatty-acid binding protein (FABP) family.
  • Domain

    Forms a beta-barrel structure that accommodates hydrophobic ligands in its interior.
  • Cellular localization

    Cytoplasm. Nucleus. Depending on the nature of the ligand, a conformation change exposes a nuclear localization motif and the protein is transported into the nucleus. Subject to constitutive nuclear export.
  • Information by UniProt


ab66681 has not yet been referenced specifically in any publications.

Customer reviews and Q&As

There are currently no Customer reviews or Questions for ab66681.
Please use the links above to contact us or submit feedback about this product.

For licensing inquiries, please contact

Sign up