Drugbank Logo

Showing drug card for Quinestrol (DB04575)

Legend: drug field target field enzyme field

for drugs
Version 2.5
Creation Date 2007-09-07 21:29:31
Update Date 2009-02-19 16:04:40
Primary Accession Number DB04575
Secondary Accession Number Not Available
Name Quinestrol
Drug Type
  • Approved
  • Small Molecule
Description The 3-cyclopentyl ether of ethinyl estradiol.
Synonyms
  1. 17-alpha-Ethinylestradiol 3-cyclopentyl ether
  2. 17alpha-Ethynylestradiol 3-cyclopentyl ether
  3. Estradiol-17-beta 3-cyclopentyl ether
  4. Quinestrolo [dcit]
  5. Quinestrolum [inn-latin]
Brand Names
  1. Eston
  2. Estrovis
  3. Estrovis 4000
  4. Estrovister
  5. Plestrovis
  6. Qui-lea
Brand Mixtures Not Available
Chemical IUPAC Name (8R,9S,13S,14S,17R)-3-cyclopentyloxy-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol
Chemical Formula C25H32O2
Chemical Structure Structure
CAS Registry Number 152-43-2
InChI Identifier InChI=1/C25H32O2/c1-3-25(26)15-13-23-22-10-8-17-16-19(27-18-6-4-5-7-18)9-11-20(17)21(22)12-14-24(23,25)2/h1,9,11,16,18,21-23,26H,4-8,10,12-15H2,2H3/t21-,22-,23+,24+,25+/m1/s1
InChI Key PWZUUYSISTUNDW-VAFBSOEGBG
KEGG Drug D00576 Link Image
KEGG Compound C07619 Link Image
PubChem Compound 9046 Link Image
PubChem Substance 7847642 Link Image
ChEBI ID Not Available
PharmGKB ID PA451207 Link Image
HET ID Not Available
GenBank ID Not Available
Drug ID Number [DIN] Not Available
RxList Link Not Available
PDRhealth Link Not Available
Wikipedia Link http://en.wikipedia.org/wiki/Quinestrol Link Image
FDA Label Not Available
Material Safety Data Sheet (MSDS) Not Available
Synthesis Reference Not Available
Average Molecular Weight 364.5204
Monoisotopic Molecular Weight 364.2402
State Solid
Melting Point 107.5 oC
Experimental Water Solubility Not Available Source: PhysProp
Predicted Water Solubility 1.57e-03 mg/mL Calculated using ALOGPS
Experimental LogP/Hydrophobicity Not Available Source: PhysProp
Predicted LogP 5.19 Calculated using ALOGPS
Experimental LogS Not Available
Predicted LogS -5.37 Calculated using ALOGPS
Experimental Caco2 Permeability Not Available
pKa/Isoelectric Point Not Available
Mass Spectrum Not Available
MOL File Show Link Image | Download Link Image
SDF File Show Link Image | Download Link Image
PDB File Show Link Image | Download Link Image
2D Structure
3D Structure
Experimental PDB ID Not Available
Isomeric SMILES C[C@]12CC[C@H]3[C@@H](CCC4=C3C=CC(OC3CCCC3)=C4)[C@@H]1CC[C@@]2(O)C#C
Canonical SMILES CC12CCC3C(CCC4=C3C=CC(OC3CCCC3)=C4)C1CCC2(O)C#C
Drug Category
  • Estrogens
  • Hormone Replacement Agents
ATC Codes Not Available
AHFS Codes Not Available
Indication Used in hormone replacement therapy, treating symptoms of menopause such as hot flashes. Also used to treat breast and prostate cancer.
Pharmacology Quinestrol is the 3-cyclopentyl ether of ethinyl estradiol (the active metabolite). After gastrointestinal absorption, it is stored in adipose tissue where it is slowly released and metabolized principally to the parent compound, ethinyl estradiol. Ethinyl estradiol is a synthetic derivative of the natural estrogen estradiol.
Mechanism of Action Estrogens diffuse into their target cells and interact with a protein receptor. Target cells include the female reproductive tract, the mammary gland, the hypothalamus, and the pituitary. Estrogens increase the hepatic synthesis of sex hormone binding globulin (SHBG), thyroid-binding globulin (TBG), and other serum proteins and suppress follicle-stimulating hormone (FSH) from the anterior pituitary. The combination of an estrogen with a progestin suppresses the hypothalamic-pituitary system, decreasing the secretion of gonadotropin-releasing hormone (GnRH).
Absorption Absorbed following oral administration.
Toxicity Symptoms of overdose include nausea and vomiting, and withdrawal bleeding may occur in females.
Protein Binding Not Available
Biotransformation Metabolized principally to the parent compound, ethinyl estradiol. Ethinyl estradiol is metabolized in the liver. Quantitatively, the major metabolic pathway for ethinyl estradiol, both in rats and in humans, is aromatic hydroxylation, as it is for the natural estrogens.
Half Life Not Available
Dosage Forms
Form Route
Tablet Oral
Patient Information Not Available
Contraindications Not Available
Interactions Not Available
Drug Interactions Not Available
Food Interactions Not Available
Pathways Not Available
General References
  1. Wikipedia Link Image
Organisms Affected
  • Humans and other mammals
Targets
  1. Estrogen receptor
Drug Target 1 [top]
Target 1 ID 136
Target 1 Name Estrogen receptor
Target 1 Synonyms
  1. ER
  2. ER-alpha
  3. Estradiol receptor
Target 1 Gene Name ESR1
Target 1 Protein Sequence >Estrogen receptor 
MTMTLHTKASGMALLHQIQGNELEPLNRPQLKIPLERPLGEVYLDSSKPAVYNYPEGAAY
EFNAAAAANAQVYGQTGLPYGPGSEAAAFGSNGLGGFPPLNSVSPSPLMLLHPPPQLSPF
LQPHGQQVPYYLENEPSGYTVREAGPPAFYRPNSDNRRQGGRERLASTNDKGSMAMESAK
ETRYCAVCNDYASGYHYGVWSCEGCKAFFKRSIQGHNDYMCPATNQCTIDKNRRKSCQAC
RLRKCYEVGMMKGGIRKDRRGGRMLKHKRQRDDGEGRGEVGSAGDMRAANLWPSPLMIKR
SKKNSLALSLTADQMVSALLDAEPPILYSEYDPTRPFSEASMMGLLTNLADRELVHMINW
AKRVPGFVDLTLHDQVHLLECAWLEILMIGLVWRSMEHPGKLLFAPNLLLDRNQGKCVEG
MVEIFDMLLATSSRFRMMNLQGEEFVCLKSIILLNSGVYTFLSSTLKSLEEKDHIHRVLD
KITDTLIHLMAKAGLTLQQQHQRLAQLLLILSHIRHMSNKGMEHLYSMKCKNVVPLYDLL
LEMLDAHRLHAPTSRGGASVEETDQSHLATAGSTSSHSLQKYYITGEAEGFPATV
Target 1 Number of Residues 604
Target 1 Molecular Weight 66217
Target 1 Theoretical pI 8.14
Target 1 GO Classification
Function
ion binding
cation binding
transition metal ion binding
zinc ion binding
steroid binding
signal transducer activity
receptor activity
ligand-dependent nuclear receptor activity
steroid hormone receptor activity
binding
nucleic acid binding
DNA binding
transcription factor activity
Process
regulation of biological process
regulation of physiological process
regulation of metabolism
regulation of cellular metabolism
regulation of nucleobase, nucleoside, nucleotide and nucleic acid metabolism
regulation of transcription
regulation of transcription, DNA-dependent
Component
organelle
membrane-bound organelle
intracellular membrane-bound organelle
nucleus
Target 1 General Function Involved in transcription factor activity
Target 1 Specific Function Nuclear hormone receptor. The steroid hormones and their receptors are involved in the regulation of eukaryotic gene expression and affect cellular proliferation and differentiation in target tissues
Target 1 Pathways Not Available
Target 1 Reactions Not Available
Target 1 Pfam Domain Function
Target 1 Signals
  • None
Target 1 Transmembrane Regions
  • None
Target 1 Essentiality Non-Essential
Target 1 GenBank ID Protein 31234 Link Image
Target 1 UniProtKB/Swiss-Prot ID P03372 Link Image
Target 1 UniProtKB/Swiss-Prot Entry Name ESR1_HUMAN Link Image
Target 1 PDB ID 1R5K Link Image
Target 1 PDB File Show
Target 1 3D Structure
Target 1 Cellular Location
  • Nucleus
Target 1 Gene Sequence >1788 bp 
ATGACCATGACCCTCCACACCAAAGCATCTGGGATGGCCCTACTGCATCAGATCCAAGGG
AACGAGCTGGAGCCCCTGAACCGTCCGCAGCTCAAGATCCCCCTGGAGCGGCCCCTGGGC
GAGGTGTACCTGGACAGCAGCAAGCCCGCCGTGTACAACTACCCCGAGGGCGCCGCCTAC
GAGTTCAACGCCGCGGCCGCCGCCAACGCGCAGGTCTACGGTCAGACCGGCCTCCCCTAC
GGCCCCGGGTCTGAGGCTGCGGCGTTCGGCTCCAACGGCCTGGGGGGTTTCCCCCCACTC
AACAGCGTGTCTCCGAGCCCGCTGATGCTACTGCACCCGCCGCCGCAGCTGTCGCCTTTC
CTGCAGCCCCACGGCCAGCAGGTGCCCTACTACCTGGAGAACGAGCCCAGCGGCTACACG
GTGCGCGAGGCCGGCCCGCCGGCATTCTACAGGCCAAATTCAGATAATCGACGCCAGGGT
GGCAGAGAAAGATTGGCCAGTACCAATGACAAGGGAAGTATGGCTATGGAATCTGCCAAG
GAGACTCGCTACTGTGCAGTGTGCAATGACTATGCTTCAGGCTACCATTATGGAGTCTGG
TCCTGTGAGGGCTGCAAGGCCTTCTTCAAGAGAAGTATTCAAGGACATAACGACTATATG
TGTCCAGCCACCAACCAGTGCACCATTGATAAAAACAGGAGGAAGAGCTGCCAGGCCTGC
CGGCTCCGCAAATGCTACGAAGTGGGAATGATGAAAGGTGGGATACGAAAAGACCGAAGA
GGAGGGAGAATGTTGAAACACAAGCGCCAGAGAGATGATGGGGAGGGCAGGGGTGAAGTG
GGGTCTGCTGGAGACATGAGAGCTGCCAACCTTTGGCCAAGCCCGCTCATGATCAAACGC
TCTAAGAAGAACAGCCTGGCCTTGTCCCTGACGGCCGACCAGATGGTCAGTGCCTTGTTG
GATGCTGAGCCCCCCATACTCTATTCCGAGTATGATCCTACCAGACCCTTCAGTGAAGCT
TCGATGATGGGCTTACTGACCAACCTGGCAGACAGGGAGCTGGTTCACATGATCAACTGG
GCGAAGAGGGTGCCAGGCTTTGTGGATTTGACCCTCCATGATCAGGTCCACCTTCTAGAA
TGTGCCTGGCTAGAGATCCTGATGATTGGTCTCGTCTGGCGCTCCATGGAGCACCCAGTG
AAGCTACTGTTTGCTCCTAACTTGCTCTTGGACAGGAACCAGGGAAAATGTGTAGAGGGC
ATGGTGGAGATCTTCGACATGCTGCTGGCTACATCATCTCGGTTCCGCATGATGAATCTG
CAGGGAGAGGAGTTTGTGTGCCTCAAATCTATTATTTTGCTTAATTCTGGAGTGTACACA
TTTCTGTCCAGCACCCTGAAGTCTCTGGAAGAGAAGGACCATATCCACCGAGTCCTGGAC
AAGATCACAGACACTTTGATCCACCTGATGGCCAAGGCAGGCCTGACCCTGCAGCAGCAG
CACCAGCGGCTGGCCCAGCTCCTCCTCATCCTCTCCCACATCAGGCACATGAGTAACAAA
GGCATGGAGCATCTGTACAGCATGAAGTGCAAGAACGTGGTGCCCCTCTATGACCTGCTG
CTGGAGATGCTGGACGCCCACCGCCTACATGCGCCCACTAGCCGTGGAGGGGCATCCGTG
GAGGAGACGGACCAAAGCCACTTGGCCACTGCGGGCTCTACTTCATCGCATTCCTTGCAA
AAGTATTACATCACGGGGGAGGCAGAGGGTTTCCCTGCCACAGTCTGA
Target 1 GenBank Gene ID
Target 1 GeneCard ID ESR1 Link Image
Target 1 GenAtlas ID ESR1 Link Image
Target 1 HGNC ID HGNC:3467 Link Image
Target 1 Chromosome Location 6
Target 1 Locus 6q25.1
Target 1 SNPs SNPJam Report Link Image
Target 1 General References
  1. Montano MM, Ekena K, Delage-Mourroux R, Chang W, Martini P, Katzenellenbogen BS: An estrogen receptor-selective coregulator that potentiates the effectiveness of antiestrogens and represses the activity of estrogens. Proc Natl Acad Sci U S A. 1999 Jun 8;96(12):6947-52. [PubMed Link Image]
  2. Rogatsky I, Trowbridge JM, Garabedian MJ: Potentiation of human estrogen receptor alpha transcriptional activation through phosphorylation of serines 104 and 106 by the cyclin A-CDK2 complex. J Biol Chem. 1999 Aug 6;274(32):22296-302. [PubMed Link Image]
  3. Lee SK, Anzick SL, Choi JE, Bubendorf L, Guan XY, Jung YK, Kallioniemi OP, Kononen J, Trent JM, Azorsa D, Jhun BH, Cheong JH, Lee YC, Meltzer PS, Lee JW: A nuclear factor, ASC-2, as a cancer-amplified transcriptional coactivator essential for ligand-dependent transactivation by nuclear receptors in vivo. J Biol Chem. 1999 Nov 26;274(48):34283-93. [PubMed Link Image]
  4. Schubert EL, Lee MK, Newman B, King MC: Single nucleotide polymorphisms (SNPs) in the estrogen receptor gene and breast cancer susceptibility. J Steroid Biochem Mol Biol. 1999 Nov;71(1-2):21-7. [PubMed Link Image]
  5. Sauve F, McBroom LD, Gallant J, Moraitis AN, Labrie F, Giguere V: CIA, a novel estrogen receptor coactivator with a bifunctional nuclear receptor interacting determinant. Mol Cell Biol. 2001 Jan;21(1):343-53. [PubMed Link Image]
  6. Shao W, Halachmi S, Brown M: ERAP140, a conserved tissue-specific nuclear receptor coactivator. Mol Cell Biol. 2002 May;22(10):3358-72. [PubMed Link Image]
  7. Wong CW, McNally C, Nickbarg E, Komm BS, Cheskis BJ: Estrogen receptor-interacting protein that modulates its nongenomic activity-crosstalk with Src/Erk phosphorylation cascade. Proc Natl Acad Sci U S A. 2002 Nov 12;99(23):14783-8. Epub 2002 Nov 1. [PubMed Link Image]
  8. Mungall AJ, Palmer SA, Sims SK, Edwards CA, Ashurst JL, Wilming L, Jones MC, Horton R, Hunt SE, Scott CE, Gilbert JG, Clamp ME, Bethel G, Milne S, Ainscough R, Almeida JP, Ambrose KD, Andrews TD, Ashwell RI, Babbage AK, Bagguley CL, Bailey J, Banerjee R, Barker DJ, Barlow KF, Bates K, Beare DM, Beasley H, Beasley O, Bird CP, Blakey S, Bray-Allen S, Brook J, Brown AJ, Brown JY, Burford DC, Burrill W, Burton J, Carder C, Carter NP, Chapman JC, Clark SY, Clark G, Clee CM, Clegg S, Cobley V, Collier RE, Collins JE, Colman LK, Corby NR, Coville GJ, Culley KM, Dhami P, Davies J, Dunn M, Earthrowl ME, Ellington AE, Evans KA, Faulkner L, Francis MD, Frankish A, Frankland J, French L, Garner P, Garnett J, Ghori MJ, Gilby LM, Gillson CJ, Glithero RJ, Grafham DV, Grant M, Gribble S, Griffiths C, Griffiths M, Hall R, Halls KS, Hammond S, Harley JL, Hart EA, Heath PD, Heathcott R, Holmes SJ, Howden PJ, Howe KL, Howell GR, Huckle E, Humphray SJ, Humphries MD, Hunt AR, Johnson CM, Joy AA, Kay M, Keenan SJ, Kimberley AM, King A, Laird GK, Langford C, Lawlor S, Leongamornlert DA, Leversha M, Lloyd CR, Lloyd DM, Loveland JE, Lovell J, Martin S, Mashreghi-Mohammadi M, Maslen GL, Matthews L, McCann OT, McLaren SJ, McLay K, McMurray A, Moore MJ, Mullikin JC, Niblett D, Nickerson T, Novik KL, Oliver K, Overton-Larty EK, Parker A, Patel R, Pearce AV, Peck AI, Phillimore B, Phillips S, Plumb RW, Porter KM, Ramsey Y, Ranby SA, Rice CM, Ross MT, Searle SM, Sehra HK, Sheridan E, Skuce CD, Smith S, Smith M, Spraggon L, Squares SL, Steward CA, Sycamore N, Tamlyn-Hall G, Tester J, Theaker AJ, Thomas DW, Thorpe A, Tracey A, Tromans A, Tubby B, Wall M, Wallis JM, West AP, White SS, Whitehead SL, Whittaker H, Wild A, Willey DJ, Wilmer TE, Wood JM, Wray PW, Wyatt JC, Young L, Younger RM, Bentley DR, Coulson A, Durbin R, Hubbard T, Sulston JE, Dunham I, Rogers J, Beck S: The DNA sequence and analysis of human chromosome 6. Nature. 2003 Oct 23;425(6960):805-11. [PubMed Link Image]
  9. Reese JC, Katzenellenbogen BS: Characterization of a temperature-sensitive mutation in the hormone binding domain of the human estrogen receptor. Studies in cell extracts and intact cells and their implications for hormone-dependent transcriptional activation. J Biol Chem. 1992 May 15;267(14):9868-73. [PubMed Link Image]
  10. Schwabe JW, Neuhaus D, Rhodes D: Solution structure of the DNA-binding domain of the oestrogen receptor. Nature. 1990 Nov 29;348(6300):458-61. [PubMed Link Image]
  11. 2792078 Tora L, Mullick A, Metzger D, Ponglikitmongkol M, Park I, Chambon P: The cloned human oestrogen receptor contains a mutation which alters its hormone binding properties. EMBO J. 1989 Jul;8(7):1981-6.
  12. 3753802 Greene GL, Gilna P, Waterfield M, Baker A, Hort Y, Shine J: Sequence and expression of human estrogen receptor complementary DNA. Science. 1986 Mar 7;231(4742):1150-4.
  13. 3754034 Green S, Walter P, Kumar V, Krust A, Bornert JM, Argos P, Chambon P: Human oestrogen receptor cDNA: sequence, expression and homology to v-erb-A. Nature. 1986 Mar 13-19;320(6058):134-9.
  14. 7476978 Joel PB, Traish AM, Lannigan DA: Estradiol and phorbol ester cause phosphorylation of serine 118 in the human estrogen receptor. Mol Endocrinol. 1995 Aug;9(8):1041-52.
  15. 7539106 Arnold SF, Obourn JD, Jaffe H, Notides AC: Phosphorylation of the human estrogen receptor on tyrosine 537 in vivo and by src family tyrosine kinases in vitro. Mol Endocrinol. 1995 Jan;9(1):24-33.
  16. 7838153 Arnold SF, Obourn JD, Jaffe H, Notides AC: Serine 167 is the major estradiol-induced phosphorylation site on the human estrogen receptor. Mol Endocrinol. 1994 Sep;8(9):1208-14.
  17. 7916651 Pfeffer U, Fecarotta E, Castagnetta L, Vidali G: Estrogen receptor variant messenger RNA lacking exon 4 in estrogen-responsive human breast cancer cell lines. Cancer Res. 1993 Feb 15;53(4):741-3.
  18. 8221895 Schwabe JW, Chapman L, Finch JT, Rhodes D: The crystal structure of the estrogen receptor DNA-binding domain bound to DNA: how receptors discriminate between their response elements. Cell. 1993 Nov 5;75(3):567-78.
  19. 8600466 Pink JJ, Wu SQ, Wolf DM, Bilimoria MM, Jordan VC: A novel 80 kDa human estrogen receptor containing a duplication of exons 6 and 7. Nucleic Acids Res. 1996 Mar 1;24(5):962-9.
  20. 8961262 McInerney EM, Ince BA, Shapiro DJ, Katzenellenbogen BS: A transcriptionally active estrogen receptor mutant is a novel type of dominant negative inhibitor of estrogen action. Mol Endocrinol. 1996 Dec;10(12):1519-26.
  21. 9195227 Anderson TI, Wooster R, Laake K, Collins N, Warren W, Skrede M, Elles R, Tveit KM, Johnston SR, Dowsett M, Olsen AO, Moller P, Stratton MR, Borresen-Dale AL: Screening for ESR mutations in breast and ovarian cancer patients. Hum Mutat. 1997;9(6):531-6.
  22. 9338790 Brzozowski AM, Pike AC, Dauter Z, Hubbard RE, Bonn T, Engstrom O, Ohman L, Greene GL, Gustafsson JA, Carlquist M: Molecular basis of agonism and antagonism in the oestrogen receptor. Nature. 1997 Oct 16;389(6652):753-8.
  23. 9600906 Tanenbaum DM, Wang Y, Williams SP, Sigler PB: Crystallographic comparison of the estrogen and progesterone receptor's ligand binding domains. Proc Natl Acad Sci U S A. 1998 May 26;95(11):5998-6003.
  24. 9619507 Maalouf GJ, Xu W, Smith TF, Mohr SC: Homology model for the ligand-binding domain of the human estrogen receptor. J Biomol Struct Dyn. 1998 Apr;15(5):841-51.
  25. 9875847 Shiau AK, Barstad D, Loria PM, Cheng L, Kushner PJ, Agard DA, Greene GL: The structural basis of estrogen receptor/coactivator recognition and the antagonism of this interaction by tamoxifen. Cell. 1998 Dec 23;95(7):927-37.
Target 1 Drug References
  1. Imming P, Sinning C, Meyer A: Drugs, their targets and the nature and number of drug targets. Nat Rev Drug Discov. 2006 Oct;5(10):821-34. [PubMed Link Image]
  2. Overington JP, Al-Lazikani B, Hopkins AL: How many drug targets are there? Nat Rev Drug Discov. 2006 Dec;5(12):993-6. [PubMed Link Image]

This project is supported by Genome Alberta & Genome Canada, a not-for-profit organization that is leading Canada's national genomics strategy with $600 million in funding from the federal government. This project is also supported in part by GenomeQuest, Inc., an enterprise genomic information company serving the life science community.