Skip to Content
Merck
All Photos(2)

Documents

I5131

Sigma-Aldrich

IgG from sheep serum

reagent grade, ≥95% (SDS-PAGE), essentially salt-free, lyophilized powder

Synonym(s):

Sheep IgG

Sign Into View Organizational & Contract Pricing


About This Item

MDL number:
UNSPSC Code:
12352203
NACRES:
NA.46

biological source

sheep

conjugate

unconjugated

antibody form

purified immunoglobulin

grade

reagent grade

Assay

≥95% (SDS-PAGE)

form

essentially salt-free, lyophilized powder

isotype

IgG

solubility

saline: 1 mg/mL at -20 °C (Repeated freezing and thawing is not recommended.)

storage temp.

2-8°C

Looking for similar products? Visit Product Comparison Guide

General description

IgG consists of four isotypes IgG1, IgG2, IgG3 and IgG4. It contains four polypeptide chains, made of two identical 50 kDa γ heavy (H) chains and two identical 25 kDa κ or λ light (L) chains, which are connected by inter-chain disulfide bonds.

Application

Purified IgG may be used as a reference antigen, standard, blocking agent or coating protein in a variety of immunoassays including ELISA, dot immunobinding, Western immunoblotting, immunodiffusion, immunoprecipitation and immunoelectrophoresis. Other applications include starting materials for the preparation of immunogens and solid-phase immunoadsorbents.

Biochem/physiol Actions

IgG antibody subtype is the most abundant of serum immunoglobulins of the immune system. It is secreted by B cells and is found in blood and extracellular fluids and provides protection from infections caused by bacteria, fungi and viruses. Maternal IgG is transferred to fetus through the placenta that is vital for immune defense of the neonate against infections.
IgG mediates transplacental transport and participates in the secondary immune response. IgG activates the classical pathway of the complement system. It neutralizes virus particles and toxins. IgG plays a key role in antibody dependent cell-mediated cytotoxicity (ADCC) and phagocytosis. It might be linked to allergy. It has the longest serum half life.

Analysis Note

Protein concentration should be determined after reconstitution by absorbance at 280 nm (E1%/280 = 14).

Disclaimer

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.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Agnieszka Gambus et al.
Cell cycle (Georgetown, Tex.), 12(8), 1225-1232 (2013-03-23)
Hexameric complexes of the six related Mcm2-7 proteins form the core of the replicative helicase. Two other proteins, Mcm8 and Mcm9, with significant homology to Mcm2-7 were first shown to play distinct roles during DNA replication in Xenopus laevis egg
Deepmala Karmakar et al.
Carcinogenesis, 41(12), 1767-1780 (2020-05-10)
Previously, our laboratory demonstrated that a deregulated E2F5/p38/SMAD3 axis was associated with uncontrolled cellular proliferation in prostate cancer (PCa). Here, we investigate the role of E2F5 in PCa in further details. RNAi-mediated E2F5 knockdown and pathway-focused gene expression profiling in
Bijurica Chakraborty et al.
EBioMedicine, 37, 442-452 (2018-10-20)
Plasmodium falciparum and Plasmodium vivax are two major parasites responsible for malaria which remains a threat to almost 50% of world's population despite decade-long eradication program. One possible reason behind this conundrum is that the bases of clinical variability in
Anil K Pal et al.
Biosensors, 10(10) (2020-09-30)
We report a novel self-referenced diffraction-based leaky waveguide (LW) comprising a thin (~2 µm) film of a photofunctionalisable hydrogel created by covalent attachment of a biotinylated photocleavable linker to chitosan. Streptavidin attached to the chitosan via the photocleavable linker was
S J Peacock et al.
Microbiology (Reading, England), 145 ( Pt 12), 3477-3486 (2000-01-08)
Adhesion of Staphylococcus aureus to human endothelial cells is implicated in the pathogenesis of invasive staphylococcal disease. The adhesion to endothelial cells of isogenic mutants defective in defined surface structures was studied. Three strains of S. aureus defective in fibronectin-binding

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

Contact Technical Service