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T1001 Sigma

Thyroglobulin from bovine thyroid

powder, ≥90% (agarose gel electrophoresis)



Related Categories Antibodies, Antibody Purification and Characterization, Application Index, Biochemicals and Reagents, Carrier Proteins,
assay   ≥90% (agarose gel electrophoresis)
form   powder
mol wt   mol wt ~670 kDa
composition   Iodine, ≥0.20%
nitrogen analysis   13.0-16.0% total
ash   ≤4%
solubility   H2O: soluble20 mg/mL
storage temp.   −20°C
Gene Information   cow ... TG(280706)



Bovine thyroglobulin was shown to stimulate proliferation in rat thyroid follicular cells as well as in primary porcine thyroid epithelial cells. This effect was mediated through PI3K signaling.

Often used as a carrier protein for the production of antibodies. Its advantage is the large number of tyrosine residues that can be used for conjugation using the diazo reaction.

Biochem/physiol Actions

Bovine thyroglobulin is a large, tetrameric glycoprotein produced in the thyroid gland as a precursor to thyroid hormones. Its large size and absence from plasma under normal conditions makes it very immunogenic and reduces the chance that antibodies to this carrier protein will cross-react with plasma proteins in immunoassays. Haptens may be conjugated to thyroglobulin via accessible secondary amines.

Iodine-containing protein that is stored in the thyroid gland. Converted into circulating thyroxines when the thyroid is stimulated by thyroid-stimulating hormone (TSH) from the pituitary. Because its expression is unique to the thyroid, it is a sensitive indicator of recurrence or metastasis of thyroid cancer that has been treated by thyroid ablation.


1, 5 g in poly bottle

100, 500 mg in poly bottle

Price and Availability

Amplified Detection
Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Certificate of Origin

Protocols & Articles


A Validated Amino Acid Analysis Assay for Accurate Quantification of Stable Isotope Labeled Protein Reference Materials: SIL Thyroglobulin Case Study

With the emergence of mass spectrometry for the clinical measurement of proteins in biological matrices, the development of biological reference materials will continue to grow in importance. Certifi...
Kevin Ray1, Pegah R. Jalili1, Mark Angeles1, James J. Walters1, Isil Dilek2, and Uma Sreenivasan2

1 - MilliporeSigma, St. Louis, MO
2 - MilliporeSigma, Round Rock, TX
Keywords: Amino acid analysis, Clinical, Fractionation, High performance liquid chromatography, Mass spectrometry, PAGE, Protein extraction

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

Characterization of Clinically-Relevant Stable Isotope Labeled Recombinant Proteins For Use As Internal Standards in Quantitative MS Workflows

Methods for quantification of clinical protein biomarkers by mass spectrometry demand a high level of analytical quality. Procedures must be developed to minimize and control experimental variations ...
Kevin Ray, Pegah Jalili, James Walters, David Rhee
Sigma-Aldrich, St. Louis, MO
Keywords: Clinical, Fractionation, Mass spectrometry, Protein extraction

Plasma Derived Proteins and Enzymes

Despite their complexity, blood and plasma are abundant biological resources for the discovery of drug targets and biomarkers for human disease. It is estimated that plasma may contain as many as 40,...
BioFiles 2006, 1.5, 2.
Keywords: Applications, Gas chromatography, Type

Related Content

Antibody Explorer - Search 80,000 Antibodies at Sigma-Aldrich

Monoclonal and polyclonal primary antibodies are focused on cell biology, neurobiology and molecular biology. Secondary antibodies targeting multiple host’s IgG are conjugated to alkaline phosphatase...
Keywords: Amplification, Buffers, Cell biology, Enzyme-linked immunosorbent assay, Immunofluorescence, Immunohistochemistry, Immunoprecipitation, Molecular biology, Phosphorylations, Purification, Western blot

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