• USA Home
  • A5187 - Anti-Sheep IgG (whole molecule)–Alkaline Phosphatase antibody produced in donkey

A5187 Sigma-Aldrich

Anti-Sheep IgG (whole molecule)–Alkaline Phosphatase antibody produced in donkey

affinity isolated antibody, buffered aqueous glycerol solution



Related Categories Alkaline Phosphatase, Alphabetical Index, Antibodies, Primary Antibodies, SG-SK,
conjugate   alkaline phosphatase conjugate
clone   polyclonal
biological source   donkey
application(s)   direct ELISA: 1:30,000
  western blot: 1:30,000
form   buffered aqueous glycerol solution
shipped in   wet ice
storage temp.   2-8°C
antibody form   affinity isolated antibody
Quality Level   200
antibody product type   secondary antibodies


General description

Affinity isolated antibody is obtained from anti-sheep IgG antiserum by immunospecific purification which removes essentially all donkey serum proteins, including immunoglobulins, which do not specifically bind to sheep IgG. Anti-Sheep IgG is conjugated to alkaline phosphatase by protein cross-linking with 0.2% glutaraldehyde. Specificity of the antiserum is determined by immunoelectrophoresis (IEP), prior to conjugation. By IEP, the antiserum reacts specifically with normal sheep serum and sheep IgG. Identity and purity of the antibody is established by immunoelectrophoresis, prior to conjugation. Electrophoresis of the product followed by diffusion against anti-horse IgG and anti-donkey whole serum results in single arcs of precipitation.

IgGs are glycoprotein antibodies that modulate several immune responses. Sheep IgGs against target proteins are often used as primary antibodies in various research applications. Thus, secondary anti-sheep IgGs are useful tools for the analysis of target proteins. Anti-Sheep IgG (whole molecule)-Alkaline Phosphatase antibody binds to all sheep immunoglobulins.


normal sheep serum and sheep IgG


Purified sheep IgG


Anti-Sheep IgG (whole molecule)-Alkaline Phosphatase antibody is suitable for use in ELISA .

Applications in which this antibody has been used successfully, and the associated peer-reviewed papers, are given below.
Western Blotting (1 paper)

Solid-Phase Decapeptide Assays were performed using alkaline phosphatase conjugated donkey anti-sheep IgG at 1:1000 for 2-3 hours at room temperature.

The anibody may be used in applications such as immunoblotting, dot blot and direct ELISA at a dilution of 1:30,000

Physical form

Solution in 0.05 M Tris, pH 8.0, containing 1 mM MgCl2, 50% glycerol, 1% bovine serum albumin, and 15 mM sodium azide.


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.

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis (COA)

Please Enter a Lot Number

Certificate of Origin (COO)

Please Enter a Lot Number
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

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


Western Blot Protocol | Immunoblotting Protocol

Western Blotting refers to the electrophoretic transfer of proteins from sodium dodecyl sulfate polyacrylamide gels to sheets of PVDF or nitrocellullose membrane, followed by immunodetection of prote...
Keywords: AGE, Buffers, Cell disruption, Detection methods, Detergents, Dialysis, Electroblotting, Electrophoresis, Enzyme activity, Gel electrophoresis, Immunoprecipitation, PAGE, Protein extraction, Purification, Sample preparations, 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?