Thyroid Peroxidase Recombinant Protein | TPO recombinant protein
Recombinant Human Thyroid Peroxidase
2. Auto-antibodies to TPO recognize conformation-dependent epitopes.
3. Standard ELISA test (checker-board analysis of positive/negative sera panels, including international reference serum NIBSC 66/387).
Introduction: Thyroid Peroxidase (TPO) represents one of the main autoantigenic targets in autoimmune thyroid disease of humans. Its identity with the formerly so-called `microsomal antigen` has been shown several years ago. As an integral membrane glycoprotein it is restricted to the apical plasma membrane of the follicular epithelial cells and comprises two identical subunits of approx. 100 kDa molecular weight. The hemoprotein TPO plays a key role in the thyroid hormone biosynthesis by catalysing both the iodination of tyrosyl residues and the coupling of iodotyrosyl residues in thyroglobulin (TG) to form precursors of the thyroid hormones T4 and T3.
NCBI and Uniprot Product Information
NCBI Description
This gene encodes a membrane-bound glycoprotein. The encoded protein acts as an enzyme and plays a central role in thyroid gland function. The protein functions in the iodination of tyrosine residues in thyroglobulin and phenoxy-ester formation between pairs of iodinated tyrosines to generate the thyroid hormones, thyroxine and triiodothyronine. Mutations in this gene are associated with several disorders of thyroid hormonogenesis, including congenital hypothyroidism, congenital goiter, and thyroid hormone organification defect IIA. Multiple transcript variants encoding distinct isoforms have been identified for this gene, but the full-length nature of some variants has not been determined. [provided by RefSeq, May 2011]
Uniprot Description
TPO: Iodination and coupling of the hormonogenic tyrosines in thyroglobulin to yield the thyroid hormones T(3) and T(4). An alternative splicing in the thyroperoxidase mRNA can cause Graves' disease. Defects in TPO are the cause of thyroid dyshormonogenesis 2A (TDH2A). A disorder due to defective conversion of accumulated iodide to organically bound iodine. The iodide organification defect can be partial or complete. Belongs to the peroxidase family. XPO subfamily. 8 isoforms of the human protein are produced by alternative splicing.
Protein type: EC 1.11.1.8; Oxidoreductase; Amino Acid Metabolism - tyrosine; Mitochondrial; Membrane protein, integral
Chromosomal Location of Human Ortholog: 2p25
Cellular Component: extracellular space; cell surface; mitochondrion; integral to plasma membrane; plasma membrane
Molecular Function: peroxidase activity; heme binding; iodide peroxidase activity; calcium ion binding
Biological Process: hydrogen peroxide catabolic process; embryonic hemopoiesis; thyroid hormone generation; response to oxidative stress; hormone biosynthetic process
Disease: Thyroid Dyshormonogenesis 2a
Research Articles on TPO
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Product Notes
The TPO tpo (Catalog #AAA142426) is a Recombinant Protein produced from Sf9 Insect Cells and is intended for research purposes only. The product is available for immediate purchase. It is sometimes possible for the material contained within the vial of "Thyroid Peroxidase, Recombinant Protein" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.Disclaimer
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