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Version 2.5
Creation Date 2007-06-30 14:19:48
Update Date 2009-04-16 16:48:22
Primary Accession Number DB01297
Secondary Accession Number Not Available
Name Practolol
Drug Type
  • Approved
  • Small Molecule
Description A beta-adrenergic antagonist that has been used in the emergency treatment of cardiac arrhythmias. [PubChem]
Synonyms
  1. Tocris-0831
Brand Names Not Available
Brand Mixtures Not Available
Chemical IUPAC Name N-[4-[(2S)-2-hydroxy-3-(propan-2-ylamino)propoxy]phenyl]acetamide
Chemical Formula C14H22N2O3
Chemical Structure Structure
CAS Registry Number 6673-35-4
InChI Identifier InChI=1/C14H22N2O3/c1-10(2)15-8-13(18)9-19-14-6-4-12(5-7-14)16-11(3)17/h4-7,10,13,15,18H,8-9H2,1-3H3,(H,16,17)/t13-/m0/s1/f/h16H
InChI Key DURULFYMVIFBIR-UGTGXVSFDC
KEGG Drug D05587 Link Image
KEGG Compound C11696 Link Image
PubChem Compound 443371 Link Image
PubChem Substance 10299290 Link Image
ChEBI ID Not Available
PharmGKB ID Not Available
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/Practolol Link Image
FDA Label Not Available
Material Safety Data Sheet (MSDS) Not Available
Synthesis Reference Not Available
Average Molecular Weight 266.3361
Monoisotopic Molecular Weight 266.1630
State Solid
Melting Point 134-136 oC
Experimental Water Solubility Not Available Source: PhysProp
Predicted Water Solubility 4.90e-01 mg/mL Calculated using ALOGPS
Experimental LogP/Hydrophobicity 0.79 [HANSCH,C ET AL. (1995)] Source: PhysProp
Predicted LogP 0.53 Calculated using ALOGPS
Experimental LogS Not Available
Predicted LogS -2.74 Calculated using ALOGPS
Experimental Caco2 Permeability -6.05 [ADME Research, USCD]
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 CC(C)NC[C@H](O)COC1=CC=C(NC(C)=O)C=C1
Canonical SMILES CC(C)NCC(O)COC1=CC=C(NC(C)=O)C=C1
Drug Category
  • Adrenergic beta-Antagonists
  • Anti-Arrhythmia Agents
ATC Codes
AHFS Codes Not Available
Indication Used in the emergency treatment of cardiac arrhythmias.
Pharmacology Practolol is a beta-adrenergic receptor antagonist that has been used in the emergency treatment of cardiac arrhythmias.
Mechanism of Action Like other beta-adrenergic antagonists, practolol competes with adrenergic neurotransmitters such as catecholamines for binding at sympathetic receptor sites. Like propranolol and timolol, practolol binds at beta(1)-adrenergic receptors in the heart and vascular smooth muscle, inhibiting the effects of the catecholamines epinephrine and norepinephrine and decreasing heart rate, cardiac output, and systolic and diastolic blood pressure.
Absorption Not Available
Toxicity Symptoms of overdose include abdominal irritation, central nervous system depression, coma, extremely slow heartbeat, heart failure, lethargy, low blood pressure, and wheezing.
Protein Binding Not Available
Biotransformation Not Available
Half Life Not Available
Dosage Forms Not Available
Patient Information Not Available
Contraindications Not Available
Interactions Not Available
Drug Interactions Not Available
Food Interactions
  • Avoid alcohol.
  • Avoid natural licorice.
Pathways Not Available
General References
  1. Wikipedia Link Image
Organisms Affected Not Available
Targets
  1. Beta-1 adrenergic receptor
Drug Target 1 [top]
Target 1 ID 193
Target 1 Name Beta-1 adrenergic receptor
Target 1 Synonyms
  1. Beta-1 adrenoceptor
  2. Beta-1 adrenoreceptor
Target 1 Gene Name ADRB1
Target 1 Protein Sequence >Beta-1 adrenergic receptor 
MGAGVLVLGASEPGNLSSAAPLPDGAATAARLLVPASPPASLLPPASESPEPLSQQWTAG
MGLLMALIVLLIVAGNVLVIVAIAKTPRLQTLTNLFIMSLASADLVMGLLVVPFGATIVV
WGRWEYGSFFCELWTSVDVLCVTASIETLCVIALDRYLAITSPFRYQSLLTRARARGLVC
TVWAISALVSFLPILMHWWRAESDEARRCYNDPKCCDFVTNRAYAIASSVVSFYVPLCIM
AFVYLRVFREAQKQVKKIDSCERRFLGGPARPPSPSPSPVPAPAPPPGPPRPAAAAATAP
LANGRAGKRRPSRLVALREQKALKTLGIIMGVFTLCWLPFFLANVVKAFHRELVPDRLFV
FFNWLGYANSAFNPIIYCRSPDFRKAFQRLLCCARRAARRRHATHGDRPRASGCLARPGP
PPSPGAASDDDDDDVVGATPPARLLEPWAGCNGGAAADSDSSLDEPCRPGFASESKV
Target 1 Number of Residues 484
Target 1 Molecular Weight 51323
Target 1 Theoretical pI 9.03
Target 1 GO Classification
Function
signal transducer activity
receptor activity
transmembrane receptor activity
G-protein coupled receptor activity
rhodopsin-like receptor activity
amine receptor activity
adrenoceptor activity
beta-adrenergic receptor activity
beta1-adrenergic receptor activity
Process
cellular process
cell communication
signal transduction
cell surface receptor linked signal transduction
G-protein coupled receptor protein signaling pathway
Component
cell
membrane
intrinsic to membrane
integral to membrane
Target 1 General Function Involved in beta1-adrenergic receptor activity
Target 1 Specific Function Beta-adrenergic receptors mediate the catecholamine- induced activation of adenylate cyclase through the action of G proteins. This receptor binds epinephrine and norepinephrine with approximately equal affinity
Target 1 Pathways Not Available
Target 1 Reactions Not Available
Target 1 Pfam Domain Function
Target 1 Signals
  • None
Target 1 Transmembrane Regions
  • 60-83
  • 97-120
  • 132-155
  • 176-199
  • 222-245
  • 326-349
  • 357-380
Target 1 Essentiality Non-Essential
Target 1 GenBank ID Protein 178200 Link Image
Target 1 UniProtKB/Swiss-Prot ID P08588 Link Image
Target 1 UniProtKB/Swiss-Prot Entry Name ADRB1_HUMAN Link Image
Target 1 PDB ID Not Available
Target 1 Cellular Location
  • Cell membrane
  • multi-pass membrane protein. Localized at the plasma membrane. Found in the Golgi upo
Target 1 Gene Sequence >1434 bp 
ATGGGCGCGGGGGTGCTCGTCCTGGGCGCCTCCGAGCCCGGTAACCTGTCGTCGGCCGCA
CCGCTCCCCGACGGCGCGGCCACCGCGGCGCGGCTGCTGGTGCCCGCGTCGCCGCCCGCC
TCGTTGCTGCCTCCCGCCAGCGAAAGCCCCGAGCCGCTGTCTCAGCAGTGGACAGCGGGC
ATGGGTCTGCTGATGGCGCTCATCGTGCTGCTCATCGTGGCGGGCAATGTGCTGGTGATC
GTGGCCATCGCCAAGACGCCGCGGCTGCAGACGCTCACCAACCTCTTCATCATGTCCCTG
GCCAGCGCCGACCTGGTCATGGGGCTGCTGGTGGTGCCGTTCGGGGCCACCATCGTGGTG
TGGGGCCGCTGGGAGTACGGCTCCTTCTTCTGCGAGCTGTGGACCTCAGTGGACGTGCTG
TGCGTGACGGCCAGCATCGAGACCCTGTGTGTCATTGCCCTGGACCGCTACCTCGCCATC
ACCTCGCCCTTCCGCTACCAGAGCCTGCTGACGCGCGCGCGGGCGCGGGGCCTCGTGTGC
ACCGTGTGGGCCATCTCGGCCCTGGTGTCCTTCCTGCCCATCCTCATGCACTGGTGGCGG
GCGGAGAGCGACGAGGCGCGCCGCTGCTACAACGACCCCAAGTGCTGCGACTTCGTCACC
AACCGGGCCTACGCCATCGCCTCGTCCGTAGTCTCCTTCTACGTGCCCCTGTGCATCATG
GCCTTCGTGTACCTGCGGGTGTTCCGCGAGGCCCAGAAGCAGGTGAAGAAGATCGACAGC
TGCGAGCGCCGTTTCCTCGGCGGCCCAGCGCGGCCGCCCTCGCCCTCGCCCTCGCCCGTC
CCCGCGCCCGCGCCGCCGCCCGGACCCCCGCGCCCCGCCGCCGCCGCCGCCACCGCCCCG
CTGGCCAACGGGCGTGCGGGTAAGCGGCGGCCCTCGCGCCTCGTGGCCCTACGCGAGCAG
AAGGCGCTCAAGACGCTGGGCATCATCATGGGCGTCTTCACGCTCTGCTGGCTGCCCTTC
TTCCTGGCCAACGTGGTGAAGGCCTTCCACCGCGAGCTGGTGCCCGACCGCCTCTTCGTC
TTCTTCAACTGGCTGGGCTACGCCAACTCGGCCTTCAACCCCATCATCTACTGCCGCAGC
CCCGACTTCCGCAAGGCCTTCCAGGGACTGCTCTGCTGCGCGCGCAGGGCTGCCCGCCGG
CGCCACGCGACCCACGGAGACCGGCCGCGCGCCTCGGGCTGTCTGGCCCGGCCCGGACCC
CCGCCATCGCCCGGGGCCGCCTCGGACGACGACGACGACGATGTCGTCGGGGCCACGCCG
CCCGCGCGCCTGCTGGAGCCCTGGGCCGGCTGCAACGGCGGGGCGGCGGCGGACAGCGAC
TCGAGCCTGGACGAGCCGTGCCGCCCCGGCTTCGCCTCGGAATCCAAGGTGTAG
Target 1 GenBank Gene ID
Target 1 GeneCard ID ADRB1 Link Image
Target 1 GenAtlas ID ADRB1 Link Image
Target 1 HGNC ID HGNC:285 Link Image
Target 1 Chromosome Location 10
Target 1 Locus 10q24-q26
Target 1 SNPs SNPJam Report Link Image
Target 1 General References
  1. Mason DA, Moore JD, Green SA, Liggett SB: A gain-of-function polymorphism in a G-protein coupling domain of the human beta1-adrenergic receptor. J Biol Chem. 1999 Apr 30;274(18):12670-4. [PubMed Link Image]
  2. Moore JD, Mason DA, Green SA, Hsu J, Liggett SB: Racial differences in the frequencies of cardiac beta(1)-adrenergic receptor polymorphisms: analysis of c145A>G and c1165G>C. Hum Mutat. 1999 Sep 19;14(3):271. [PubMed Link Image]
  3. Borjesson M, Magnusson Y, Hjalmarson A, Andersson B: A novel polymorphism in the gene coding for the beta(1)-adrenergic receptor associated with survival in patients with heart failure. Eur Heart J. 2000 Nov;21(22):1853-8. [PubMed Link Image]
  4. Ranade K, Jorgenson E, Sheu WH, Pei D, Hsiung CA, Chiang FT, Chen YD, Pratt R, Olshen RA, Curb D, Cox DR, Botstein D, Risch N: A polymorphism in the beta1 adrenergic receptor is associated with resting heart rate. Am J Hum Genet. 2002 Apr;70(4):935-42. Epub 2002 Feb 18. [PubMed Link Image]
  5. Frielle T, Collins S, Daniel KW, Caron MG, Lefkowitz RJ, Kobilka BK: Cloning of the cDNA for the human beta 1-adrenergic receptor. Proc Natl Acad Sci U S A. 1987 Nov;84(22):7920-4. [PubMed Link Image]
Target 1 Drug References
  1. Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [PubMed Link Image]
  2. Abrahamsson T: The beta 1- and beta 2-adrenoceptor stimulatory effects of alprenolol, oxprenolol and pindolol: a study in the isolated right atrium and uterus of the rat. Br J Pharmacol. 1986 Apr;87(4):657-64. [PubMed Link Image]
  3. Keyrilainen O, Uusitalo A: A comparative study of three beta 1-adrenoreceptor blocking drugs with different degree of intrinsic stimulating activity (metoprolol, practolol and H 87/07) in patients with angina pectoris. Ann Clin Res. 1978 Aug;10(4):185-90. [PubMed Link Image]
  4. Saarnivaara L, Lindgren L, Hynynen M: Effects of practolol and metoprolol on QT interval, heart rate and arterial pressure during induction of anaesthesia. Acta Anaesthesiol Scand. 1984 Dec;28(6):644-8. [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.