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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-06 15:16:49 UTC
Update Date2022-03-07 02:51:38 UTC
HMDB IDHMDB0014486
Secondary Accession Numbers
  • HMDB14486
Metabolite Identification
Common NameTerfenadine
DescriptionTerfenadine is only found in individuals that have used or taken this drug. In the U.S., Terfenadine was superseded by fexofenadine in the 1990s due to the risk of cardiac arrhythmia caused by QT interval prolongation.Terfenadine competes with histamine for binding at H1-receptor sites in the GI tract, uterus, large blood vessels, and bronchial muscle. This reversible binding of terfenadine to H1-receptors suppresses the formation of edema, flare, and pruritus resulting from histaminic activity. As the drug does not readily cross the blood-brain barrier, CNS depression is minimal.
Structure
Data?1582753184
Synonyms
ValueSource
SeldaneKegg
TernadinHMDB
Heumann brand OF terfenadineHMDB
Merck dura brand OF terfenadineHMDB
Stadapharm brand OF terfenadineHMDB
TerfemundinHMDB
Terfenadin heumannHMDB
TerfenidineHMDB
Terfenadin von CTHMDB
Aliud brand OF terfenadineHMDB
Cantabria brand OF terfenadineHMDB
Mundipharma brand OF terfenadineHMDB
RapidalHMDB
TeldaneHMDB
Terfenadin alHMDB
TriludanHMDB
CT Arzneimittel brand OF terfenadineHMDB
Balkis saft spezialHMDB
CyaterHMDB
HisfedinHMDB
Hoechst brand OF terfenadineHMDB
TerfeduraHMDB
alpha-(4-(1,1-Dimethylethyl)phenyl)-4-(hydroxydiphenylmethyl)-1-piperdinebutanolHMDB
CT-Arzneimittel brand OF terfenadineHMDB
Ratiopharm brand OF terfenadineHMDB
Bial brand OF terfenadineHMDB
Dolorgiet brand OF terfenadineHMDB
Sigma tau brand OF terfenadineHMDB
Sigma-tau brand OF terfenadineHMDB
Terfenadin stadaHMDB
Terfenadin-ratiopharmHMDB
Wolff brand OF terfenadineHMDB
Terfenadin ratiopharmMeSH
Chemical FormulaC32H41NO2
Average Molecular Weight471.6734
Monoisotopic Molecular Weight471.313729561
IUPAC Name1-(4-tert-butylphenyl)-4-[4-(hydroxydiphenylmethyl)piperidin-1-yl]butan-1-ol
Traditional Nameterfenadine
CAS Registry Number50679-08-8
SMILES
CC(C)(C)C1=CC=C(C=C1)C(O)CCCN1CCC(CC1)C(O)(C1=CC=CC=C1)C1=CC=CC=C1
InChI Identifier
InChI=1S/C32H41NO2/c1-31(2,3)26-18-16-25(17-19-26)30(34)15-10-22-33-23-20-29(21-24-33)32(35,27-11-6-4-7-12-27)28-13-8-5-9-14-28/h4-9,11-14,16-19,29-30,34-35H,10,15,20-24H2,1-3H3
InChI KeyGUGOEEXESWIERI-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as diphenylmethanes. Diphenylmethanes are compounds containing a diphenylmethane moiety, which consists of a methane wherein two hydrogen atoms are replaced by two phenyl groups.
KingdomOrganic compounds
Super ClassBenzenoids
ClassBenzene and substituted derivatives
Sub ClassDiphenylmethanes
Direct ParentDiphenylmethanes
Alternative Parents
Substituents
  • Diphenylmethane
  • Phenylbutylamine
  • Phenylpropane
  • Aralkylamine
  • Piperidine
  • Tertiary alcohol
  • Tertiary aliphatic amine
  • Tertiary amine
  • Secondary alcohol
  • Organoheterocyclic compound
  • Azacycle
  • Aromatic alcohol
  • Alcohol
  • Hydrocarbon derivative
  • Organopnictogen compound
  • Organic oxygen compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organic nitrogen compound
  • Amine
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External Descriptors
Ontology
Not AvailableNot Available
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting Point146.5 - 148.5 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility0.00046 g/LNot Available
LogP7.1Not Available
Experimental Chromatographic Properties

Experimental Collision Cross Sections

Adduct TypeData SourceCCS Value (Å2)Reference
[M+H]+CBM229.830932474
[M+H]+McLean227.9330932474
[M+H]+Not Available226.752http://allccs.zhulab.cn/database/detail?ID=AllCCS00000853
Predicted Molecular Properties
PropertyValueSource
Water Solubility0.00046 g/LALOGPS
logP5.89ALOGPS
logP6.48ChemAxon
logS-6ALOGPS
pKa (Strongest Acidic)13.2ChemAxon
pKa (Strongest Basic)9.02ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area43.7 ŲChemAxon
Rotatable Bond Count9ChemAxon
Refractivity146.27 m³·mol⁻¹ChemAxon
Polarizability56.45 ųChemAxon
Number of Rings4ChemAxon
BioavailabilityYesChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleYesChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+208.9331661259
DarkChem[M-H]-206.80331661259
DeepCCS[M+H]+209.98630932474
DeepCCS[M-H]-207.630932474
DeepCCS[M-2H]-240.48530932474
DeepCCS[M+Na]+216.48130932474
AllCCS[M+H]+220.932859911
AllCCS[M+H-H2O]+219.032859911
AllCCS[M+NH4]+222.632859911
AllCCS[M+Na]+223.132859911
AllCCS[M-H]-214.332859911
AllCCS[M+Na-2H]-215.932859911
AllCCS[M+HCOO]-217.832859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
TerfenadineCC(C)(C)C1=CC=C(C=C1)C(O)CCCN1CCC(CC1)C(O)(C1=CC=CC=C1)C1=CC=CC=C13910.9Standard polar33892256
TerfenadineCC(C)(C)C1=CC=C(C=C1)C(O)CCCN1CCC(CC1)C(O)(C1=CC=CC=C1)C1=CC=CC=C13580.8Standard non polar33892256
TerfenadineCC(C)(C)C1=CC=C(C=C1)C(O)CCCN1CCC(CC1)C(O)(C1=CC=CC=C1)C1=CC=CC=C13792.1Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Terfenadine,1TMS,isomer #1CC(C)(C)C1=CC=C(C(CCCN2CCC(C(O)(C3=CC=CC=C3)C3=CC=CC=C3)CC2)O[Si](C)(C)C)C=C13723.6Semi standard non polar33892256
Terfenadine,1TMS,isomer #2CC(C)(C)C1=CC=C(C(O)CCCN2CCC(C(O[Si](C)(C)C)(C3=CC=CC=C3)C3=CC=CC=C3)CC2)C=C13789.5Semi standard non polar33892256
Terfenadine,2TMS,isomer #1CC(C)(C)C1=CC=C(C(CCCN2CCC(C(O[Si](C)(C)C)(C3=CC=CC=C3)C3=CC=CC=C3)CC2)O[Si](C)(C)C)C=C13549.9Semi standard non polar33892256
Terfenadine,1TBDMS,isomer #1CC(C)(C)C1=CC=C(C(CCCN2CCC(C(O)(C3=CC=CC=C3)C3=CC=CC=C3)CC2)O[Si](C)(C)C(C)(C)C)C=C13900.3Semi standard non polar33892256
Terfenadine,1TBDMS,isomer #2CC(C)(C)C1=CC=C(C(O)CCCN2CCC(C(O[Si](C)(C)C(C)(C)C)(C3=CC=CC=C3)C3=CC=CC=C3)CC2)C=C13991.0Semi standard non polar33892256
Terfenadine,2TBDMS,isomer #1CC(C)(C)C1=CC=C(C(CCCN2CCC(C(O[Si](C)(C)C(C)(C)C)(C3=CC=CC=C3)C3=CC=CC=C3)CC2)O[Si](C)(C)C(C)(C)C)C=C13969.0Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Terfenadine GC-MS (Non-derivatized) - 70eV, Positivesplash10-001i-0922300000-f2ebf7861ae9f28463f92017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Terfenadine GC-MS (2 TMS) - 70eV, Positivesplash10-0a4i-1091031000-8a395a9531e2fce637a42017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Terfenadine GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Terfenadine GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
MSMass Spectrum (Electron Ionization)splash10-001i-8890000000-2c6ad1195e498f463cbf2014-09-20Not AvailableView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental LC-MS/MSLC-MS/MS Spectrum - Terfenadine LC-ESI-qTof , Positive-QTOFsplash10-0573-2592100000-35fee494c6fb22cf92792017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Terfenadine LC-ESI-QTOF , positive-QTOFsplash10-00di-0000900000-577805b6e639de28dd592017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Terfenadine LC-ESI-QTOF , positive-QTOFsplash10-00di-0000900000-6ee8ace68773688ab6062017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Terfenadine LC-ESI-QTOF , positive-QTOFsplash10-000i-0000900000-8d9a4ec2424b97bb3b802017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Terfenadine LC-ESI-QTOF , positive-QTOFsplash10-000i-6770900000-9830d37d285444cff7912017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Terfenadine LC-ESI-QTOF , positive-QTOFsplash10-0a4i-5920000000-909f0029205fa0a7663f2017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Terfenadine , positive-QTOFsplash10-000i-2541900000-f3da0c526b0e748b95672017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Terfenadine 50V, Positive-QTOFsplash10-0a4i-5920000000-98434dfc2057ad8cb2c62021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Terfenadine 50V, Positive-QTOFsplash10-0a4i-5920000000-3114fcb90f8a2c5605702021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Terfenadine 20V, Positive-QTOFsplash10-00di-0000900000-6ee8ace68773688ab6062021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Terfenadine 10V, Positive-QTOFsplash10-00di-0000900000-577805b6e639de28dd592021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Terfenadine 40V, Positive-QTOFsplash10-000i-6770900000-7d494f82f525a8d1b1562021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Terfenadine 30V, Positive-QTOFsplash10-000i-0000900000-8d9a4ec2424b97bb3b802021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Terfenadine 40V, Positive-QTOFsplash10-000i-6770900000-9830d37d285444cff7912021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Terfenadine 50V, Positive-QTOFsplash10-0a4i-5920000000-909f0029205fa0a7663f2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Terfenadine 40V, Positive-QTOFsplash10-000i-6770900000-3ea778438aa61069b40a2021-09-20HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Terfenadine 10V, Positive-QTOFsplash10-0uk9-0000900000-33f5717b3bed30143d5b2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Terfenadine 20V, Positive-QTOFsplash10-0uki-0543900000-e5659b7fe1e1659acac92016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Terfenadine 40V, Positive-QTOFsplash10-03dr-2981000000-03f1a2ca48b1a2d8e7692016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Terfenadine 10V, Negative-QTOFsplash10-00di-0100900000-19b3063632e4afc820d32016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Terfenadine 20V, Negative-QTOFsplash10-00fr-5561900000-bac14174fc7e7f1ab7f42016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Terfenadine 40V, Negative-QTOFsplash10-003u-9870000000-8b66dc183082f6b4a57f2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Terfenadine 10V, Positive-QTOFsplash10-00di-0000900000-9161868ea37af548032e2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Terfenadine 20V, Positive-QTOFsplash10-0uk9-0003900000-aef17866c8a1837ed79b2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Terfenadine 40V, Positive-QTOFsplash10-00dl-2944700000-c715fedf12c50f301dff2021-09-22Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Membrane
Biospecimen Locations
  • Blood
  • Urine
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodExpected but not QuantifiedNot QuantifiedNot AvailableNot AvailableTaking drug identified by DrugBank entry DB00342 details
UrineExpected but not QuantifiedNot QuantifiedNot AvailableNot AvailableTaking drug identified by DrugBank entry DB00342 details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDDB00342
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID5212
KEGG Compound IDC07463
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkTerfenadine
METLIN IDNot Available
PubChem Compound5405
PDB IDNot Available
ChEBI ID119569
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Download (PDF)
General ReferencesNot Available

Only showing the first 10 proteins. There are 11 proteins in total.

Enzymes

General function:
Involved in monooxygenase activity
Specific function:
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It performs a variety of oxidation reactions (e.g. caffeine 8-oxidation, omeprazole sulphoxidation, midazolam 1'-hydroxylation and midazolam 4-hydroxylation) of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. Acts as a 1,8-cineole 2-exo-monooxygenase. The enzyme also hydroxylates etoposide.
Gene Name:
CYP3A4
Uniprot ID:
P08684
Molecular weight:
57255.585
References
  1. Wang RW, Newton DJ, Liu N, Atkins WM, Lu AY: Human cytochrome P-450 3A4: in vitro drug-drug interaction patterns are substrate-dependent. Drug Metab Dispos. 2000 Mar;28(3):360-6. [PubMed:10681383 ]
  2. Preissner S, Kroll K, Dunkel M, Senger C, Goldsobel G, Kuzman D, Guenther S, Winnenburg R, Schroeder M, Preissner R: SuperCYP: a comprehensive database on Cytochrome P450 enzymes including a tool for analysis of CYP-drug interactions. Nucleic Acids Res. 2010 Jan;38(Database issue):D237-43. doi: 10.1093/nar/gkp970. Epub 2009 Nov 24. [PubMed:19934256 ]
  3. Kishimoto W, Hiroi T, Sakai K, Funae Y, Igarashi T: Metabolism of epinastine, a histamine H1 receptor antagonist, in human liver microsomes in comparison with that of terfenadine. Res Commun Mol Pathol Pharmacol. 1997 Dec;98(3):273-92. [PubMed:9485522 ]
  4. Nemeroff CB, DeVane CL, Pollock BG: Newer antidepressants and the cytochrome P450 system. Am J Psychiatry. 1996 Mar;153(3):311-20. [PubMed:8610817 ]
General function:
Involved in monooxygenase activity
Specific function:
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. This enzyme contributes to the wide pharmacokinetics variability of the metabolism of drugs such as S-warfarin, diclofenac, phenytoin, tolbutamide and losartan.
Gene Name:
CYP2C9
Uniprot ID:
P11712
Molecular weight:
55627.365
References
  1. Preissner S, Kroll K, Dunkel M, Senger C, Goldsobel G, Kuzman D, Guenther S, Winnenburg R, Schroeder M, Preissner R: SuperCYP: a comprehensive database on Cytochrome P450 enzymes including a tool for analysis of CYP-drug interactions. Nucleic Acids Res. 2010 Jan;38(Database issue):D237-43. doi: 10.1093/nar/gkp970. Epub 2009 Nov 24. [PubMed:19934256 ]
General function:
Involved in monooxygenase activity
Specific function:
Responsible for the metabolism of many drugs and environmental chemicals that it oxidizes. It is involved in the metabolism of drugs such as antiarrhythmics, adrenoceptor antagonists, and tricyclic antidepressants.
Gene Name:
CYP2D6
Uniprot ID:
P10635
Molecular weight:
55768.94
References
  1. Preissner S, Kroll K, Dunkel M, Senger C, Goldsobel G, Kuzman D, Guenther S, Winnenburg R, Schroeder M, Preissner R: SuperCYP: a comprehensive database on Cytochrome P450 enzymes including a tool for analysis of CYP-drug interactions. Nucleic Acids Res. 2010 Jan;38(Database issue):D237-43. doi: 10.1093/nar/gkp970. Epub 2009 Nov 24. [PubMed:19934256 ]
  2. Kishimoto W, Hiroi T, Sakai K, Funae Y, Igarashi T: Metabolism of epinastine, a histamine H1 receptor antagonist, in human liver microsomes in comparison with that of terfenadine. Res Commun Mol Pathol Pharmacol. 1997 Dec;98(3):273-92. [PubMed:9485522 ]
General function:
Involved in monooxygenase activity
Specific function:
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics.
Gene Name:
CYP3A5
Uniprot ID:
P20815
Molecular weight:
57108.065
General function:
Involved in monooxygenase activity
Specific function:
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics.
Gene Name:
CYP3A7
Uniprot ID:
P24462
Molecular weight:
57525.03
General function:
Involved in monooxygenase activity
Specific function:
Cytochromes P450 are a group of heme-thiolate monooxygenases. In liver microsomes, this enzyme is involved in an NADPH-dependent electron transport pathway. It oxidizes a variety of structurally unrelated compounds, including steroids, fatty acids, and xenobiotics. In the epoxidation of arachidonic acid it generates only 14,15- and 11,12-cis-epoxyeicosatrienoic acids. It is the principal enzyme responsible for the metabolism the anti-cancer drug paclitaxel (taxol).
Gene Name:
CYP2C8
Uniprot ID:
P10632
Molecular weight:
55824.275
References
  1. Preissner S, Kroll K, Dunkel M, Senger C, Goldsobel G, Kuzman D, Guenther S, Winnenburg R, Schroeder M, Preissner R: SuperCYP: a comprehensive database on Cytochrome P450 enzymes including a tool for analysis of CYP-drug interactions. Nucleic Acids Res. 2010 Jan;38(Database issue):D237-43. doi: 10.1093/nar/gkp970. Epub 2009 Nov 24. [PubMed:19934256 ]
General function:
Involved in monooxygenase activity
Specific function:
This enzyme metabolizes arachidonic acid predominantly via a NADPH-dependent olefin epoxidation to all four regioisomeric cis-epoxyeicosatrienoic acids. One of the predominant enzymes responsible for the epoxidation of endogenous cardiac arachidonic acid pools.
Gene Name:
CYP2J2
Uniprot ID:
P51589
Molecular weight:
57610.165
References
  1. Preissner S, Kroll K, Dunkel M, Senger C, Goldsobel G, Kuzman D, Guenther S, Winnenburg R, Schroeder M, Preissner R: SuperCYP: a comprehensive database on Cytochrome P450 enzymes including a tool for analysis of CYP-drug interactions. Nucleic Acids Res. 2010 Jan;38(Database issue):D237-43. doi: 10.1093/nar/gkp970. Epub 2009 Nov 24. [PubMed:19934256 ]
General function:
Involved in ion channel activity
Specific function:
Pore-forming (alpha) subunit of voltage-gated inwardly rectifying potassium channel. Channel properties are modulated by cAMP and subunit assembly. Mediates the rapidly activating component of the delayed rectifying potassium current in heart (IKr). Isoform 3 has no channel activity by itself, but modulates channel characteristics when associated with isoform 1
Gene Name:
KCNH2
Uniprot ID:
Q12809
Molecular weight:
126653.5
References
  1. Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [PubMed:11752352 ]
  2. Gessner G, Zacharias M, Bechstedt S, Schonherr R, Heinemann SH: Molecular determinants for high-affinity block of human EAG potassium channels by antiarrhythmic agents. Mol Pharmacol. 2004 May;65(5):1120-9. [PubMed:15102940 ]
  3. Testai L, Cecchetti V, Sabatini S, Martelli A, Breschi MC, Calderone V: Effects of K openers on the QT prolongation induced by HERG-blocking drugs in guinea-pigs. J Pharm Pharmacol. 2010 Jul;62(7):924-30. doi: 10.1211/jpp.62.06.0014. [PubMed:20636881 ]
General function:
Involved in G-protein coupled receptor protein signaling pathway
Specific function:
In peripheral tissues, the H1 subclass of histamine receptors mediates the contraction of smooth muscles, increase in capillary permeability due to contraction of terminal venules, and catecholamine release from adrenal medulla, as well as mediating neurotransmission in the central nervous system
Gene Name:
HRH1
Uniprot ID:
P35367
Molecular weight:
55783.6
References
  1. Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [PubMed:11752352 ]
  2. Kishimoto W, Hiroi T, Sakai K, Funae Y, Igarashi T: Metabolism of epinastine, a histamine H1 receptor antagonist, in human liver microsomes in comparison with that of terfenadine. Res Commun Mol Pathol Pharmacol. 1997 Dec;98(3):273-92. [PubMed:9485522 ]
  3. Salata JJ, Jurkiewicz NK, Wallace AA, Stupienski RF 3rd, Guinosso PJ Jr, Lynch JJ Jr: Cardiac electrophysiological actions of the histamine H1-receptor antagonists astemizole and terfenadine compared with chlorpheniramine and pyrilamine. Circ Res. 1995 Jan;76(1):110-9. [PubMed:8001268 ]
  4. Wood-Baker R, Smith R, Holgate ST: A double-blind, placebo controlled study of the effect of the specific histamine H1-receptor antagonist, terfenadine, in chronic severe asthma. Br J Clin Pharmacol. 1995 Jun;39(6):671-5. [PubMed:7654486 ]
  5. Phillips GD, Polosa R, Holgate ST: The effect of histamine-H1 receptor antagonism with terfenadine on concentration-related AMP-induced bronchoconstriction in asthma. Clin Exp Allergy. 1989 Jul;19(4):405-9. [PubMed:2569356 ]
  6. Rafferty P, Holgate ST: Terfenadine (Seldane) is a potent and selective histamine H1 receptor antagonist in asthmatic airways. Am Rev Respir Dis. 1987 Jan;135(1):181-4. [PubMed:2879489 ]
General function:
Involved in G-protein coupled receptor protein signaling pathway
Specific function:
The muscarinic acetylcholine receptor mediates various cellular responses, including inhibition of adenylate cyclase, breakdown of phosphoinositides and modulation of potassium channels through the action of G proteins. Primary transducing effect is Pi turnover
Gene Name:
CHRM3
Uniprot ID:
P20309
Molecular weight:
66127.4
References
  1. Yasuda SU, Yasuda RP: Affinities of brompheniramine, chlorpheniramine, and terfenadine at the five human muscarinic cholinergic receptor subtypes. Pharmacotherapy. 1999 Apr;19(4):447-51. [PubMed:10212017 ]

Transporters

General function:
Involved in ATP binding
Specific function:
Energy-dependent efflux pump responsible for decreased drug accumulation in multidrug-resistant cells
Gene Name:
ABCB1
Uniprot ID:
P08183
Molecular weight:
141477.3
References
  1. Wang EJ, Casciano CN, Clement RP, Johnson WW: Active transport of fluorescent P-glycoprotein substrates: evaluation as markers and interaction with inhibitors. Biochem Biophys Res Commun. 2001 Nov 30;289(2):580-5. [PubMed:11716514 ]
  2. Schwab D, Fischer H, Tabatabaei A, Poli S, Huwyler J: Comparison of in vitro P-glycoprotein screening assays: recommendations for their use in drug discovery. J Med Chem. 2003 Apr 24;46(9):1716-25. [PubMed:12699389 ]
  3. Hait WN, Gesmonde JF, Murren JR, Yang JM, Chen HX, Reiss M: Terfenadine (Seldane): a new drug for restoring sensitivity to multidrug resistant cancer cells. Biochem Pharmacol. 1993 Jan 26;45(2):401-6. [PubMed:8094615 ]
  4. Kim RB, Wandel C, Leake B, Cvetkovic M, Fromm MF, Dempsey PJ, Roden MM, Belas F, Chaudhary AK, Roden DM, Wood AJ, Wilkinson GR: Interrelationship between substrates and inhibitors of human CYP3A and P-glycoprotein. Pharm Res. 1999 Mar;16(3):408-14. [PubMed:10213372 ]

Only showing the first 10 proteins. There are 11 proteins in total.