• USA Home
  • 18772 - Anti-Rabbit IgG - Atto 488 antibody produced in goat

18772 Sigma-Aldrich

Anti-Rabbit IgG - Atto 488 antibody produced in goat

whole molecule, 1 mg/mL protein

Synonym: Atto 488-[goat-Anti-rabbit IgG], whole molecule

  •  NACRES NA.46



Related Categories Alphabetical Index, Antibodies, Atto 488, Biochemicals and Reagents, Fluorescent Conjugates,
conjugate   Atto 488 conjugate
clone   polyclonal
application(s)   immunocytochemistry: 1:500
  immunofluorescence: 1:200
  immunohistochemistry: suitable
species reactivity   rabbit
shipped in   wet ice
storage temp.   −20°C
antibody product type   secondary antibodies
contains   50% glycerol
concentration   1 mg/mL protein
fluorescence   λex 485 nm; λem 552 nm in PBS


General description

Goat polyclonal anti-Rabbit IgG (whole molecule)-Atto 488 antibody antibody reats with rabbit IgG in vitro, in rabbit serum and biological fluids.

Rabbit IgG is a plasma B cell derived antibody isotype defined by its heavy chain. IgG is the most abundant antibody isotype found in rabbit serum. IgG crosses the placental barrier, is a complement activator and binds to the Fc-receptors on phagocytic cells. The level of IgG may vary with the status of disease or infection.
Atto 488 is a labeling dye with high molecular absorption (90,000) and quantum yield (0.80) as well as sufficient Stokes shift between excitation and emission maximum. It is optimized for excitation with an argon laser, and is characterized by high photostability. Atto fluorescent labels are designed for high sensitivity applications, including single molecule detection. Atto labels have rigid structures that do not show any cis-trans-isomerization. Thus these labels display exceptional intensity with minimal spectral shift on conjugation.


Rabbit IgG


Anti-Rabbit IgG has been used for immunocytochemistry applications at a dilution of 1:500 in neural precursor cells.

Goat polyclonal anti-Rabbit IgG (whole molecule)-Atto 488 antibody may be used to detect and quantitate the level of IgG in rabbit serum and biological fluids via fluorogenic immunochemical or immunohistochemical techniques. It may also be used as a secondary antibody in assays that use rabbit IgG as the primary antibody. Atto 488 goat anti-rabbit IgG antibody was used for immunofluorescence to detect L. monocytogenes in mouse tissue sections following incubation with an anti-listeria antibody. Antibody was used at a 1:200 dilution.

Physical form

Atto 488 goat anti-rabbit IgG (whole molecule) is provided in unit sizes of 1 ml as 1 mg/ml solutions in 0.1 M sodium phosphate, 0.1 M NaCl, pH 7.5, containing 5 mM sodium azide as a preservative.


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Legal Information

This product is for Research use only. In case of intended commercialization, please contact the IP-holder (ATTO-TEC GmbH, Germany) for licensing.

Analysis Note

Unconjugated dye ≤5% of total fluorescence; dye-to-protein ratio >2.

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable
Protocols & Articles


Antibody Basics

Immunoglobulins (Igs) are produced by B lymphocytes and secreted into plasma. The Ig molecule in monomeric form is a glycoprotein with a molecular weight of approximately 150 kDa that is shaped more ...
Keywords: Affinity chromatography, Centrifugation, Chromatography, Digestions, Direct immunofluorescence, Gene expression, High performance liquid chromatography, Immunofluorescence, Ion Exchange, Microscopy, Precipitation, Purification, Rheumatology, Scanning electron microscopy

Fluorescent Multiplex Detection using Antibody Atto Dye Conjugates

Immunoblotting (Western blot transfer) is a common technique in modern proteomics research. After electrophoresis, proteins are immobilized on a nitrocellulose or PVDF membrane and then probed with a...
BioFiles 2011, 6.3, 16.
Keywords: Catalytic combustion detector, Electrophoresis, Immobilization, PAGE, Proteomics, Western blot

How to Choose a Secondary Antibody

The following information is provided to help you decide which secondary antibody may be best for your particular application.
Keywords: Amplification, Enzyme-linked immunosorbent assay, Flow cytometry, Immobilization, Immunocytochemistry, Immunofluorescence, Immunohistochemistry, Western blot

Secondary Antibodies, Conjugates and Kits

Secondary antibodies are polyclonal or monoclonal antibodies that bind to primary antibodies or antibody fragments, such as the Fc or Fab regions. They are typically labeled with probes that make the...
Keywords: Absorption, Adsorption, Amplification, Bacterial conjugations, Cancer, Digestions, Electrophoresis, Enzyme-linked immunosorbent assay, Flow cytometry, Gel electrophoresis, Gene expression, Hormones, Immobilization, Immunocytochemistry, Immunofluorescence, Immunohistochemistry, Immunology, Immunoprecipitation, Infrared spectroscopy, Microbiology, Microscopy, Purification, Vitamins, Western blot

Related Content

Antibody Explorer | Buy Primary Antibodies & Secondary Antibodies

Primary, Secondary and Recombinant Monoclonal Antibodies Providing highly cited primary and secondary antibodies, we have you covered for your ELISA, western blot, immunohistochemistry or other assay...
Keywords: Alzheimer Disease, Cancer, Chromatin immunoprecipitation, Diagnostic, Enzyme-linked immunosorbent assay, Flow cytometry, Immunocytochemistry, Immunofluorescence, Immunohistochemistry, Neuroscience, Western blot

Peer-Reviewed Papers


Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?