Human alpha 2-Macroglobulin Biotinylated Antibody

  
  • Species Reactivity
    Human
  • Specificity
    Detects human alpha 2-Macroglobulin in Western blots.
  • Source
    Polyclonal Goat IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    Human plasma-derived alpha 2-Macroglobulin
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
  • Label
    Biotin
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    0.1 µg/mL
    Human alpha 2-Macroglobulin (Catalog # 1938-PI)
  • Immunocytochemistry
    5-15 µg/mL
    See below
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Data Examples
Immunocytochemistry
alpha 2-Macroglobulin in Human PBMCs. alpha 2-Macroglobulin was detected in immersion fixed human peripheral blood mononuclear cells (PBMCs) using Goat Anti‑Human alpha 2‑Macroglobulin Biotinylated Antigen Affinity-purified Poly­clonal Antibody (Catalog # BAF1938) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Streptavidin (yellow; Catalog # NL999) and counter­stained with DAPI (blue). View our protocol for Fluorescent ICC Staining of Non-adherent Cells.
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.2 mg/mL in sterile PBS.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
  • Stability & Storage
    Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
    • 12 months from date of receipt, -20 to -70 °C as supplied.
    • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
    • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: alpha 2-Macroglobulin

Human alpha 2-macroglobulin (h alpha 2M) is a serum glycoprotein that has sequence similarity to other members of the alpha 2M family including complement components C3, C4 and C5 (1). alpha 2M is synthesized as a polypeptide of 1474 amino acids with a signal peptide (23 residues) (2). The mature protein is a tetramer (720 kDa) of 4 identical subunits (180 kDa), which form two disulfide bond-linked dimers. As a general and irreversible protease inhibitor implicated in many processes, alpha 2M is able to inhibit all four classes of proteases by a unique trapping mechanism. The bait region of h alpha 2M (residues 690‑728) contains specific cleavage sites for different proteases. The cleavage of the bait region by a protease induces a conformation change in alpha 2M, which then traps and forms a covalent bond with the protease. The trapped protease remains active against small peptide substrates but loses its ability to interact with large protein substrates or inhibitors.

  • References:
    1. Sottrup-Jensen, L. et al. (1985) Proc. Natl. Acad. Sci. USA 82:9.
    2. Kan, C.C. et al. (1985) Proc. Natl. Acad. Sci. USA 82:2282.
  • Entrez Gene IDs:
    2 (Human)
  • Alternate Names:
    A2M; alpha 2Macroglobulin; alpha 2-Macroglobulin; alpha-2-M; alpha-2-macroglobulin; C3 and PZP-like alpha-2-macroglobulin domain-containing protein 5; CPAMD5; CPAMD5DKFZp779B086; FWP007; S863-7
Related Research Areas
Isotype Controls
Description Application Cat# Citations Images  

Normal Goat IgG Biotinylated Control

Ctrl BAF108 19
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....
Staining Reagents
Description Application Cat# Citations Images  

Streptavidin-Phycoerythrin

Flow F0040 7
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Streptavidin-Alkaline Phosphatase

ELISA(Det) AR001 2
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

NorthernLights Streptavidin NL557

Flow, IHC, ICC NL999 4
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

NorthernLights Streptavidin NL637

Flow, IHC, ICC NL998 2
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

NorthernLights Streptavidin NL493

Flow, IHC, ICC NL997 1
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Streptavidin-Allophycocyanin

Flow F0050 1
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Avidin-Fluorescein

Flow F0030 1
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....
Supplemental Cell Selection Products
Description Application Cat# Citations Images  

MagCellect Streptavidin Ferrofluid

MAG999B 4
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

MagCellect Streptavidin Ferrofluid

MAG999 4
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....
Supplemental ELISA Products
Description Application Cat# Citations Images  

Streptavidin-HRP

ELISA DY998 44
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

EvenCoat Streptavidin Coated Plates

ELISA CP004
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

EvenCoat Streptavidin Coated Plates, 5 Pack

ELISA CP003 3
View Sizes & Prices
Catalog# Size Price Stock Quantity
Loading Information....

Have you used Human alpha 2-Macroglobulin Biotinylated Antibody?

Submit a review and receive a $25US/€18/£15/$25CAN amazon gift card if you include an image - $10US/€7/£6/$10CAN Amazon card for reviews without an image. Limited to verified customers in USA, Canada and Europe.

Order Details

Contact Information

Calculators

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

=
÷
R&D Systems Guarantee

Monoclonal
Antibody
Panels For
Screening

Learn More
Monoclonal Antibodies

Feedback

Customer Information