T1001
Thyroglobulin from bovine thyroid
powder, ≥90% (agarose gel electrophoresis)
Synonym(s):
Globulins thyro, Thyractin
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About This Item
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biological source
bovine thyroid
Assay
≥90% (agarose gel electrophoresis)
form
powder
mol wt
~670 kDa
composition
Iodine, ≥0.20%
nitrogen analysis
13.0-16.0% total
ash
≤4%
solubility
H2O: 20 mg/mL
UniProt accession no.
storage temp.
−20°C
Gene Information
cow ... TG(280706)
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Application
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.
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
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