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Protein A Polyclonal Antibody, Cy3 Conjugated


  • WB
  • IF(IHC-P)
  • IF(IHC-F)
  • IF(ICC)


  • Bacteria
  • Others
Catalog # bs-0362R-Cy3
Product Name Protein A Polyclonal Antibody, Cy3 Conjugated
Applications WB, IF(IHC-P), IF(IHC-F), IF(ICC)
Reactivity Bacteria, Others
Conjugation Cy3
Host Rabbit
Source Recombinant protein A
Clonality Polyclonal
Isotype IgG
Concentration 1ug/ul
Purification Purified by Protein A.
Storage Buffer Aqueous buffered solution containing 0.01M TBS (pH 7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol.
Storage Condition Store at -20°C. Aliquot into multiple vials to avoid repeated freeze-thaw cycles.
Subcellular location Secreted
Synonyms Immunoglobulin G binding protein A; Staphylococcal protein A; SPA; gG-binding protein A; Staphylococcus aureus.
Background Protein A is a 40-60 kDa surface protein originally found in the cell wall of the bacteria Staphylococcus aureus (SPA). SPA binds proteins from many of mammalian species, most notably IgGs, and helps inhibit phagocytic engulfment and acts as an immunological disguise via this type of interaction, thus the bacteria will disrupts opsonization and phagocytosis. SPA is known to bind with Fc region of immunoglobulins preferentially through interaction with the VH3 variable region of the heavy chain. SPA has been shown to bind with high affinity to human IgG1 and IgG2 as well as mouse IgG2a and IgG2b, whereas bind with moderate affinity to human IgM, IgA and IgE as well as mouse IgG3 and IgG1. SPA is often produced in E. coli and is practically coupled to other molecules such as enzymes, biotin, radioactive iodine for use in immunology and other biological research. SPA is also immobilized onto solid supports such as agarose beads for total IgG purifying or interest protein or protein complex identifying in immunoprecipitation studies.
Application Dilution
WB 1:300-5000
IF(IHC-P) 1:50-200
IF(IHC-F) 1:50-200
IF(ICC) 1:50-200