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T44

3,5,3',5'-TETRAIODO-L-THYRONINE

T44 is found in 22 entries

T44 as free ligands, exist in 22 entries. Example includes: 1HK1 5CR1 1Y0X

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Chemical Component Summary

Name3,5,3',5'-TETRAIODO-L-THYRONINE
Identifiers(2S)-2-amino-3-[4-(4-hydroxy-3,5-diiodo-phenoxy)-3,5-diiodo-phenyl]propanoic acid
FormulaC15 H11 I4 N O4
Molecular Weight776.87 g/mol
TypeNON-POLYMER
Isomeric SMILESN[C@@H](Cc1cc(I)c(Oc2cc(I)c(O)c(I)c2)c(I)c1)C(O)=O
InChIInChI=1S/C15H11I4NO4/c16-8-4-7(5-9(17)13(8)21)24-14-10(18)1-6(2-11(14)19)3-12(20)15(22)23/h1-2,4-5,12,21H,3,20H2,(H,22,23)/t12-/m0/s1
InChIKeyXUIIKFGFIJCVMT-LBPRGKRZSA-N

Chemical Details

Formal Charge0
Atom Count35
Chiral Atom Count1
Chiral AtomsC8
Bond Count36
Aromatic Bond Count12
Leaving Atomsn/a

Drug Info: DrugBank

DrugBank IDDB00451 Stereoisomeric match
NameLevothyroxine
Groupsapproved
DescriptionThe major hormone derived from the thyroid gland. Thyroxine is synthesized via the iodination of tyrosines (monoiodotyrosine) and the coupling of iodotyrosines (diiodotyrosine) in the thyroglobulin. Thyroxine is released from thyroglobulin by proteolysis and secreted into the blood. Thyroxine is peripherally deiodinated to form triiodothyronine which exerts a broad spectrum of stimulatory effects on cell metabolism. [PubChem]
Synonyms
  • 3,3',5,5'-Tetraiodo-L-thyronine
  • 3,5,3',5'-TETRAIODO-L-thyronine
  • 4-(4-Hydroxy-3,5-diiodophenoxy)-3,5-diiodo-L-phenylalanine
  • L-T4
  • L-Thyroxine
SaltsLevothyroxine sodium
Brand Names
  • Eltroxin
  • Eltroxin 150 Tab
  • Eltroxin Tab 100mcg
  • Eltroxin Tab 200mcg
  • Eltroxin Tab 300mcg
Affected OrganismHumans and other mammals
IndicationFor use alone or in combination with antithyroid agents to treat hypothyroidism, goiter, chronic lymphocytic thyroiditis, myxedema coma, and stupor.
PharmacologyLevothyroxine (T<sub>4</sub>) is a synthetically prepared levo isomer of thyroxine, the major hormone secreted from the thyroid gland. Thyroxine is released from thyroglobulin by proteolysis and secreted into the blood. Thyroxine is peripherally deiodinated to form triiodothyronine (T<sub>3</sub>) which exerts a broad spectrum of stimulatory effects on cell metabolism. Thyroid hormone increases the metabolic rate of cells of all tissues in the body. In the fetus and newborn, thyroid hormone is important for the growth and development of all tissues including bones and the brain. In adults, thyroid hormone helps to maintain brain function, food metabolism, and body temperature, among other effects. The symptoms of thyroid deficiency relieved by levothyroxine include slow speech, lack of energy, weight gain, hair loss, dry thick skin and unusual sensitivity to cold.
Mechanism of actionLevothyroxine acts like the endogenous thyroid hormone thyroxine (T<sub>4</sub>, a tetra-iodinated tyrosine derivative). In the liver and kidney, T<sub>4</sub> is converted to T<sub>3</sub>, the active metabolite. In order to increase solubility, the thyroid hormones attach to thyroid hormone binding proteins, thyroxin-binding globulin, and thyroxin-binding prealbumin (transthyretin). Transport and binding to thyroid hormone receptors in the cytoplasm and nucleus then takes place. Thus by acting as a replacement for natural thyroxine, symptoms of thyroxine deficiency are relieved.
Route of administration
  • Intramuscular; Intravenous
  • Intravenous
  • Oral
  • Topical
Categories
  • Amino Acids
  • Amino Acids, Aromatic
  • Amino Acids, Cyclic
  • Amino Acids, Peptides, and Proteins
  • Chemical Actions and Uses
ATC-CodeH03AA01
AHFS-Code68:36.04
CAS number51-48-9
Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS. Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID:21059682