Overview

Description

  • Nature

    Recombinant
  • Source

    HEK 293 cells
  • Amino Acid Sequence
    • Accession
    • Species

      Human
    • Sequence

      QL LFNKTKSVEF TFCNDTVVIP CFVTNMEAQN TTEVYVKWKF KGRDIYTFDG ALNKSTVPTD FSSAKIEVSQ LLKGDASLKM DKSDAVSHTG NYTCEVTELT REGETIIELK YRVVSWFSP
    • Molecular weight

      41 kDa including tags
    • Amino acids

      19 to 139
    • Additional sequence information

      This protein carries a mouse IgG2a Fc tag ((Glu 98-Lys 330) P01863) at the C-terminus (NP_942088).

Associated products

Specifications

Our Abpromise guarantee covers the use of ab220559 in the following tested applications.

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

  • Biological activity

    Measured by its binding ability in a functional ELISA against immobilized Human SIRP alpha (HPLC-verified), His Tag, 0.2 μg/mL). The linear range is 0.5-8 ng/mL.

  • Applications

    Functional Studies

    SDS-PAGE

  • Endotoxin level

    < 1.000 Eu/µg
  • Purity

    > 95 % SDS-PAGE.

  • Form

    Lyophilised
  • Concentration information loading...

Preparation and Storage

  • Stability and Storage

    Shipped at 4°C. Store at 4°C (stable for up to 12 months). Store at -80°C. Avoid freeze / thaw cycle. Working aliquots stored with a carrier protein are stable for at least 3 months at -20°C to -80°C..

    pH: 7.50
    Constituents: 0.61% Tris, 0.75% Glycine, 5% Trehalose

    Lyophilized from 0.22 µm filtered solution.

    This product is an active protein and may elicit a biological response in vivo, handle with caution.

  • Reconstitution
    It is recommended to reconstitute the lyophilized protein in sterile deionized water to a final concentration of 1mg/ml. Solubilize for 30 to 60 minutes at room temperature with occasional gentle mixing. Carrier protein (0.1% HSA or BSA) is strongly recommended for further dilution and long term storage.

General Info

  • Alternative names

    • Antigen identified by monoclonal antibody 1D8
    • Antigenic surface determinant protein OA3
    • CD 47
    • CD47
    • CD47 antigen
    • CD47 antigen (Rh-related antigen, integrin-associated signal transducer)
    • CD47 glycoprotein
    • CD47 molecule
    • CD47_HUMAN
    • IAP
    • Integrin Associated Protein
    • Integrin associated signal transducer
    • Integrin-associated protein
    • Leukocyte surface antigen CD47
    • MER 6
    • MER6
    • OA 3
    • OA3
    • OTTHUMP00000041152
    • OTTHUMP00000041153
    • Protein MER6
    • Rh related antigen
    • Surface antigen identified by monoclonal antibody 1D8
    see all
  • Function

    Has a role in both cell adhesion by acting as an adhesion receptor for THBS1 on platelets, and in the modulation of integrins. Plays an important role in memory formation and synaptic plasticity in the hippocampus (By similarity). Receptor for SIRPA, binding to which prevents maturation of immature dendritic cells and inhibits cytokine production by mature dendritic cells. Interaction with SIRPG mediates cell-cell adhesion, enhances superantigen-dependent T-cell-mediated proliferation and costimulates T-cell activation. May play a role in membrane transport and/or integrin dependent signal transduction. May prevent premature elimination of red blood cells. May be involved in membrane permeability changes induced following virus infection.
  • Tissue specificity

    Very broadly distributed on normal adult tissues, as well as ovarian tumors, being especially abundant in some epithelia and the brain.
  • Sequence similarities

    Contains 1 Ig-like V-type (immunoglobulin-like) domain.
  • Cellular localization

    Cell membrane.
  • Information by UniProt

Images

  • Human CD47 mouse IgG2a Fc tag low endotoxin on SDS-PAGE under reducing (R) and non-reducing (NR) conditions. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.
  • FACS analysis shows that the binding of Human CD47 to ACHN expressing SIRP-a was inhibited by increasing concentration of neutralizing SIRP-a antibody. The concentration of Human CD47 used is 10 μg/mL. IC50=8.39 μg/mL

  • FACS assay shows that Human CD47, Mouse IgG2a Fc Tag, low endotoxin (ab220559) can bind to ACHN cell expressing human SIRP-a. The concentration of CD47 used is 10 μg/mL 

  • Loaded Human CD47, Mouse IgG2a Fc Tag, low endotoxin (ab220559) on Protein A Biosensor, can bind Human SIRP alpha, His Tag (HPLC-verified) (ab174006) with an affinity constant of 1.1 μM as determined in BLI assay 

  • SDS-PAGE analysis of DTT-reduced (lane 1) and non-reduced (lane 2) ab220559 staining overnight with Coomassie Blue. 

    The protein migrates as 50-66 kDa on a SDS-PAGE gel under reducing conditions due to glycosylation and 100-130 kDa under non-reducing conditions.

  • Immobilized Human SIRP alpha (HPLC-verified), His Tag at 2 μg/mL (100 μL/well) can bind ab220559 with a linear range of 0.5-8 ng/mL.

References

ab220559 has not yet been referenced specifically in any publications.

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