Associated products


Our Abpromise guarantee covers the use of ab74386 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

    • CD 74
    • CD74
    • CD74 antigen
    • CD74 antigen (invariant polypeptide of major histocompatibility complex, class II antigen-associated)
    • CD74 molecule
    • CD74 molecule, major histocompatibility complex, class II invariant chain
    • CLIP
    • DHLAG
    • Gamma chain of class II antigens
    • HG2A_HUMAN
    • HLA class II histocompatibility antigen gamma chain
    • HLA DR antigens associated invariant chain
    • HLA DR gamma
    • HLA-DR antigens-associated invariant chain
    • HLA-DR-gamma
    • HLADG
    • HLADR antigens associated invariant chain
    • Ia antigen associated invariant chain
    • Ia antigen-associated invariant chain
    • Ia associated invariant chain
    • Ia gamma
    • Ii
    • Invariant polypeptide of major histocompatibility complex class II antigen associated
    • la-gamma
    • Major histocompatibility complex class II invariant chain
    • MHC HLA DR gamma chain
    • MHC HLA-DR gamma chain
    • p33
    • p35
    • Protein 41
    see all
  • Function

    Plays a critical role in MHC class II antigen processing by stabilizing peptide-free class II alpha/beta heterodimers in a complex soon after their synthesis and directing transport of the complex from the endoplasmic reticulum to the endosomal/lysosomal system where the antigen processing and binding of antigenic peptides to MHC class II takes place. Serves as cell surface receptor for the cytokine MIF.
  • Sequence similarities

    Contains 1 thyroglobulin type-1 domain.
  • Cellular localization

    Cell membrane. Endoplasmic reticulum membrane. Golgi apparatus > trans-Golgi network. Endosome. Lysosome. Transits through a number of intracellular compartments in the endocytic pathway. It can either undergo proteolysis or reach the cell membrane.
  • Information by UniProt


ab74386 has not yet been referenced specifically in any publications.

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