Human TG (Thyroglobulin) Sandwich ELISA (STJE0004089)

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STJE0004089

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Applications: ELISA
Reactivity: Human
Note: FOR SCIENTIFIC EDUCATIONAL RESEARCH USE ONLY (RUO). MUST NOT BE USED IN DIAGNOSTIC OR OTHER MEDICAL APPLICATIONS.
Sensitivity: 0.47ng/mL
Detection Limit: 0.78~50ng/mL
Short Description: This TG Sandwich ELISA is an in-vitro enzyme-linked immunosorbent assay for the measurement of samples in human cell culture supernatant, serum and plasma (EDTA, citrate, heparin).
Storage Instruction: If unopened the kit may be stored at 2-8°C for up to 1 month. If the kit will not be used within 1 month, store the components separately, according to the component table in the manual.
Assay Time: 3.5h
Detection: Colormetric
Gene Symbol: TG
Gene ID: 7038
Uniprot ID: THYG_HUMAN
Specificity: This kit recognizes Human TG in samples. No significant cross-reactivity or interference between Human TG and analogues was observed.
Sample Type: Serum, plasma and other biological fluids
Post Translational Modifications Iodinated on tyrosine residues by TPO. There are 4 pairs of iodinated tyrosines used for coupling: acceptor Tyr-24 is coupled to donor Tyr-149 or Tyr-234, acceptor Tyr-2573 is coupled to donor Tyr-2540, acceptor Tyr-2766 in monomer 1 is coupled to donor Tyr-2766 in monomer 2 and acceptor Tyr-1310 in monomer 1 is coupled to donor Tyr-108 in monomer 2. Sulfated tyrosines are desulfated during iodination. Undergoes sequential proteolysis by cathepsins to release thyroxine (T4) and triiodothyronine (T3) hormones. In the thyroid follicle lumen, cross-linked TG (storage form) is solubilized by limited proteolysis mediated by cathepsins CTSB and/or CTSL. Partially cleaved TG is further processed by CTSK/cathepsin K and/or CTSL resulting in the release of T4. Following endocytosis, further processing occurs leading to the release of T3 and more T4 hormones.
Function Acts as a substrate for the production of iodinated thyroid hormones thyroxine (T4) and triiodothyronine (T3). The synthesis of T3 and T4 involves iodination of selected tyrosine residues of TG/thyroglobulin followed by their oxidative coupling in the thyroid follicle lumen. Following TG re-internalization and lysosomal-mediated proteolysis, T3 and T4 are released from the polypeptide backbone leading to their secretion into the bloodstream. One dimer produces 7 thyroid hormone molecules.
Protein Name Thyroglobulin
Tg
Cellular Localisation Secreted
Secreted Into The Thyroid Follicle Lumen
Localizes To Colloid Globules
A Structure Formed In The Thyroid Follicle Lumen Consisting Of Cross-Linked Tg Arranged In Concentric Layers
Alternative ELISA Names Thyroglobulin ELISA kit
Tg ELISA kit
TG ELISA kit
Specificity This kit recognizes Human TG in samples. No significant cross-reactivity or interference between Human TG and analogues was observed.
Reproducibility Both intra-CV and inter-CV are

Information sourced from Uniprot.org


Item Specifications Storage
Micro ELISA Plate (Dismountable) 96T: 8 wells ×12 strips strips -20℃, 6 months
Reference Standard 96T: 2 vials 48T: 1 vial -20℃, 6 months
Concentrated Biotinylated Detection Ab (100×) 96T: 1 vial, 120 μL 60 μL -20℃, 6 months
Concentrated HRP Conjugate (100×) 96T: 1 vial, 120 μL 60 μL -20℃ (Protect from light), 6 months
Reference Standard & Sample Diluent 1 vial, 20 mL 2-8°C, 6 months
Biotinylated Detection Ab Diluent 1 vial, 14 mL 2-8°C, 6 months
HRP Conjugate Diluent 1 vial, 14 mL 2-8°C, 6 months
Concentrated Wash Buffer (25×) 1 vial, 30 mL 2-8°C, 6 months
Substrate Reagent 1 vial, 10 mL 2-8℃ (Protect from light)
Stop Solution 1 vial, 10 mL 2-8°C
Plate Sealer 5 pieces
Manual 1 copy
Certificate of Analysis 1 copy

Sample Type Range (%) Average Recovery (%)
Serum(n=8) 85-100 92
EDTA plasma (n=8) 90-99 93
Cell culture media (n=8) 87-94 90

Intra-assay Precision Intra-assay Precision Intra-assay Precision Inter-assay Precision Inter-assay Precision Inter-assay Precision
Sample 1.00 2.00 3.00 1.00 2.00 3.00
n 20.00 20.00 20.00 20.00 20.00 20.00
Mean (ng/mL) 2.09 6.05 23.02 2.01 5.36 21.99
Standard deviation 0.11 0.28 1.16 0.12 0.25 1.06
CV (%) 5.26 4.63 5.04 5.97 4.66 4.82
12 months for antibodies. 6 months for ELISA Kits. Please see website T&Cs for further guidance