| Version |
2.5 |
| Creation Date |
2005-06-13 13:24:05 |
| Update Date |
2009-02-19 16:04:47 |
| Primary Accession Number |
DB01048 |
| Secondary Accession Number |
|
| Name |
Abacavir |
| Drug Type |
- Approved
- Investigational
- Small Molecule
|
| Description |
Abacavir (ABC) is the most powerful nucleoside analog reverse transcriptase inhibitor (NRTI) used to treat HIV and AIDS. [Wikipedia] |
| Synonyms |
- ABC
- abacavir
|
| Brand Names |
- Epzicom
- Ziagen
|
| Brand Mixtures |
- Kivexa (Abacavir Sulfate + Lamivudine)
- Trizivir (Abacavir Sulfate + Lamivudine + Zidovudine)
|
| Chemical IUPAC Name |
[(1R)-4-[2-amino-6-(cyclopropylamino)purin-9-yl]-1-cyclopent-2-enyl]methanol |
| Chemical Formula |
C14H18N6O |
| Chemical Structure |
 |
| CAS Registry Number |
136470-78-5 |
| InChI Identifier |
InChI=1/C14H18N6O/c15-14-18-12(17-9-2-3-9)11-13(19-14)20(7-16-11)10-4-1-8(5-10)6-21/h1,4,7-10,21H,2-3,5-6H2,(H3,15,17,18,19)/t8-,10?/m0/s1/f/h17H,15H2 |
| InChI Key |
MCGSCOLBFJQGHM-XVENQWGRDR |
| KEGG Drug |
Not Available |
| KEGG Compound |
C07624  |
| PubChem Compound |
65140  |
| PubChem Substance |
208126  |
| ChEBI ID |
2360  |
| PharmGKB ID |
PA448004  |
| HET ID |
Not Available |
| GenBank ID |
Not Available |
| Drug ID Number [DIN] |
02240358  |
| RxList Link |
http://www.rxlist.com/cgi/generic/abavir.htm  |
| PDRhealth Link |
http://www.pdrhealth.com/drug_info/rxdrugprofiles/drugs/cx1527.shtml  |
| Wikipedia Link |
http://en.wikipedia.org/wiki/Abacavir  |
| FDA Label |
|
| Material Safety Data Sheet (MSDS) |
|
| Synthesis Reference |
Not Available |
| Average Molecular Weight |
286.3323 |
| Monoisotopic Molecular Weight |
286.1542 |
| State |
Solid |
| Melting Point |
165 oC |
| Experimental Water Solubility |
77 mg/mL (sulfate salt)
Source: PhysProp
|
| Predicted Water Solubility |
1.21e+00 mg/mL
Calculated using ALOGPS
|
| Experimental LogP/Hydrophobicity |
1.1
Source: PhysProp
|
| Predicted LogP |
0.61
Calculated using ALOGPS
|
| Experimental LogS |
Not Available |
| Predicted LogS |
-2.37
Calculated using ALOGPS
|
| Experimental Caco2 Permeability |
Not Available |
| pKa/Isoelectric Point |
Not Available |
| Mass Spectrum |
Not Available
|
| MOL File |
Show | Download  |
| SDF File |
Show | Download  |
| PDB File |
Show | Download  |
| 2D Structure |
|
| 3D Structure |
|
| Experimental PDB ID |
Not Available |
| Isomeric SMILES |
NC1=NC(NC2CC2)=C2N=CN([C@H]3C[C@@H](CO)C=C3)C2=N1 |
| Canonical SMILES |
NC1=NC(NC2CC2)=C2N=CN(C3CC(CO)C=C3)C2=N1 |
| Drug Category |
- Anti-HIV Agents
- Nucleoside and Nucleotide Reverse Transcriptase Inhibitors
- Reverse Transcriptase Inhibitors
|
| ATC Codes |
|
| AHFS Codes |
|
| Indication |
For the treatment of HIV-1 infection, in combination with other antiretroviral agents. |
| Pharmacology |
Abacavir is a nucleoside reverse transcriptase inhibitor (NRTI) with activity against Human Immunodeficiency Virus Type 1 (HIV-1). Abacavir is phosphorylated to active metabolites that compete for incorporation into viral DNA. They inhibit the HIV reverse transcriptase enzyme competitively and act as a chain terminator of DNA synthesis. The lack of a 3'-OH group in the incorporated nucleoside analogue prevents the formation of the 5' to 3' phosphodiester linkage essential for DNA chain elongation, and therefore, the viral DNA growth is terminated. |
| Mechanism of Action |
Abacavir is a carbocyclic synthetic nucleoside analogue. Intracellularly, abacavir is converted by cellular enzymes to the active metabolite carbovir triphosphate, an analogue of deoxyguanosine-5'-triphosphate (dGTP). Carbovir triphosphate inhibits the activity of HIV-1 reverse transcriptase (RT) both by competing with the natural substrate dGTP and by its incorporation into viral DNA. |
| Absorption |
Rapid and extensive after oral administration (83% bioavailability) |
| Toxicity |
Some myocardial degeneration has been noticed in rats and mice |
| Protein Binding |
Moderate (approximately 50%) |
| Biotransformation |
Hepatic, by alcohol dehydrogenase and glucuronosyltransferase to a 5′-carboxylic acid metabolite and 5′-glucuronide metabolite, respectively. These metabolites have no antiviral activity. Abacavir is not significantly metabolized by cytochrome P450 enzymes. |
| Half Life |
1.54 ± 0.63 hours |
| Dosage Forms |
| Form |
Route |
| Solution |
Oral |
| Tablet |
Oral |
|
| Patient Information |
Show  |
| Contraindications |
Show  |
| Interactions |
Show  |
| Drug Interactions |
| Drug |
Interaction |
| Amprenavir |
The serum concentration of Abacavir may be decreased by protease inhibitors such as Amprenavir. The antiviral response should be closely monitored. |
| Atazanavir |
The serum concentration of Abacavir may be decreased by protease inhibitors such as Atazanavir. The antiviral response should be closely monitored. |
| Darunavir |
The serum concentration of Abacavir may be decreased by protease inhibitors such as Darunavir. The antiviral response should be closely monitored. |
| Ethanol |
Partly metabolized through the alcohol dehydrogenase enzyme system. Alcohol increases the area under the curve (about 41%) of Abacavir. |
| Fosamprenavir |
The serum concentration of Abacavir may be decreased by protease inhibitors such as Fosamprenavir. The antiviral response should be closely monitored. |
| Ganciclovir |
The adverse/toxic effects of reverse transcriptase inhibitors (nucleoside), such as Abacavir, may be enhanced by Ganciclovir. There is a risk of hematologic toxicity. Diligent monitoring during concomitant therapy is required. |
| Indinavir |
The serum concentration of Abacavir may be decreased by protease inhibitors such as Indinavir. The antiviral response should be closely monitored. |
| Lopinavir |
The serum concentration of Abacavir may be decreased by protease inhibitors such as Lopinavir. The antiviral response should be closely monitored. |
| Nelfinavir |
The serum concentration of Abacavir may be decreased by protease inhibitors such as Nelfinavir. The antiviral response should be closely monitored. |
| Ribavirin |
Ribavirin may increase the hepatotoxicity of reverse transcriptase inhibitors (nucleoside) such as Abacavir. Lactic acidosis may occur. Consider modifying therapy. |
| Ribavirin Monophosphate |
Ribavirin Monophosphate may increase the hepatotoxicity of reverse transcriptase inhibitors (nucleoside) such as Abacavir. Lactic acidosis may occur. Consider modifying therapy. |
| Ritonavir |
The serum concentration of Abacavir may be decreased by protease inhibitors such as Ritonavir. The antiviral response should be closely monitored. |
| Saquinavir |
The serum concentration of Abacavir may be decreased by protease inhibitors such as Saquinavir. The antiviral response should be closely monitored. |
| Tipranavir |
The serum concentration of Abacavir may be decreased by protease inhibitors such as Tipranavir. The antiviral response should be closely monitored. |
| Valganciclovir |
The adverse/toxic effects of reverse transcriptase inhibitors (nucleoside), such as Abacavir, may be enhanced by Valganciclovir. There is a risk of hematologic toxicity. Diligent monitoring during concomitant therapy is recommended. |
|
| Food Interactions |
- Abacavir is partly metabolised through the alcohol-dehydrogenase enzyme system.
- Alcohol significantly increases abacavir's area under the curve (about 41%).
- Avoid alcohol.
- Take without regard to meals.
|
| Pathways |
Not Available
|
| General References |
- Zucman D, Truchis P, Majerholc C, Stegman S, Caillat-Zucman S: Prospective screening for human leukocyte antigen-B*5701 avoids abacavir hypersensitivity reaction in the ethnically mixed French HIV population. J Acquir Immune Defic Syndr. 2007 May 1;45(1):1-3. [PubMed
]
- Drugs.com

- Wikipedia

- RxList

- PDRhealth

|
| Organisms Affected |
- Human Immunodeficiency Virus
|
| Phase 1 Metabolizing Enzymes |
- Glucuronosyltransferase
- Alcohol dehydrogenase
|
| Targets |
- Gag-Pol polyprotein
|
|
Drug Target 1
[top]
|
| Target 1 ID |
864 |
| Target 1 Name |
Gag-Pol polyprotein |
| Target 1 Synonyms |
- Pr160Gag-Pol
|
| Target 1 Gene Name |
gag |
| Target 1 Protein Sequence |
>Gag-Pol polyprotein
GARASVLSGGELDKWEKIRLRPGGKKKYKLKHIVWASRELERFAVNPGLLETSEGCRQIL
GQLQPSLQTGSEELRSLYNTVATLYCVHQRIDVKDTKEALEKIEEEQNKSKKKAQQAAAA
AGTGNSSQVSQNYPIVQNLQGQMVHQAISPRTLNAWVKVVEEKAFSPEVIPMFSALSEGA
TPQDLNTMLNTVGGHQAAMQMLKETINEEAAEWDRVHPVHAGPIAPGQMREPRGSDIAGT
TSTLQEQIGWMTNNPPIPVGEIYKRWIILGLNKIVRMYSPTSILDIRQGPKEPFRDYVDR
FYKTLRAEQASQDVKNWMTETLLVQNANPDCKTILKALGPAATLEEMMTACQGVGGPGHK
ARVLAEAMSQVTNPANIMMQRGNFRNQRKTVKCFNCGKEGHIAKNCRAPRKKGCWRCGRE
GHQMKDCTERQANFLREDLAFLQGKAREFSSEQTRANSPTRRELQVWGGENNSLSEAGAD
RQGTVSFNFPQITLWQRPLVTIRIGGQLKEALLDTGADDTVLEEMNLPGKWKPKMIGGIG
GFIKVRQYDQIPVEICGHKAIGTVLVGPTPVNIIGRNLLTQIGCTLNFPISPIETVPVKL
KPGMDGPKVKQWPLTEEKIKALVEICTEMEKEGKISKIGPENPYNTPVFAIKKKDSTKWR
KLVDFRELNKRTQDFWEVQLGIPHPAGLKKKKSVTVLDVGDAYFSVPLDKDFRKYTAFTI
PSINNETPGIRYQYNVLPQGWKGSPAIFQSSMTKILEPFRKQNPDIVIYQYMDDLYVGSD
LEIGQHRTKIEELRQHLLRWGFTTPDKKHQKEPPFLWMGYELHPDKWTVQPIMLPEKDSW
TVNDIQKLVGKLNWASQIYAGIKVKQLCKLLRGTKALTEVIPLTEEAELELAENREILKE
PVHEVYYDPSKDLVAEIQKQGQGQWTYQIYQEPFKNLKTGKYARMRGAHTNDVKQLTEAV
QKVSTESIVIWGKIPKFKLPIQKETWEAWWMEYWQATWIPEWEFVNTPPLVKLWYQLEKE
PIVGAETFYVDGAANRETKLGKAGYVTDRGRQKVVSIADTTNQKTELQAIHLALQDSGLE
VNIVTDSQYALGIIQAQPDKSESELVSQIIEQLIKKEKVYLAWVPAHKGIGGNEQVDKLV
SAGIRKVLFLNGIDKAQEEHEKYHSNWRAMASDFNLPPVVAKEIVASCDKCQLKGEAMHG
QVDCSPGIWQLDCTHLEGKIILVAVHVASGYIEAEVIPAETGQETAYFLLKLAGRWPVKT
IHTDNGSNFTSTTVKAACWWAGIKQEFGIPYNPQSQGVVESMNNELKKIIGQVRDQAEHL
KTAVQMAVFIHNFKRKGGIGGYSAGERIVDIIATDIQTKELQKQITKIQNFRVYYRDNKD
PLWKGPAKLLWKGEGAVVIQDNSDIKVVPRRKAKIIRDYGKQMAGDDCVASRQDED
|
| Target 1 Number of Residues |
1459 |
| Target 1 Molecular Weight |
161886 |
| Target 1 Theoretical pI |
9.02 |
| Target 1 GO Classification |
|
Function
|
RNA binding
transferase activity
transferase activity, transferring phosphorus-containing groups
nucleotidyltransferase activity
RNA-directed DNA polymerase activity
DNA binding
hydrolase activity, acting on ester bonds
nuclease activity
endonuclease activity
endoribonuclease activity
endoribonuclease activity, producing 5'-phosphomonoesters
ribonuclease H activity
nucleic acid binding
hydrolase activity
peptidase activity
endopeptidase activity
aspartic-type endopeptidase activity
structural molecule activity
binding
ion binding
cation binding
transition metal ion binding
zinc ion binding
catalytic activity
integrase activity |
|
Process
|
DNA replication
RNA-dependent DNA replication
DNA recombination
macromolecule metabolism
protein metabolism
cellular protein metabolism
proteolysis
physiological process
metabolism
cellular metabolism
nucleobase, nucleoside, nucleotide and nucleic acid metabolism
DNA metabolism
DNA integration
viral life cycle |
|
Component
|
| Not Available |
|
| Target 1 General Function |
Involved in RNA binding |
| Target 1 Specific Function |
Integrase performs the integration of the newly synthesized dsDNA copy of the viral genome into the host chromosome. The integrated DNA is called provirus |
| Target 1 Pathways |
|
| Target 1 Reactions |
- deoxynucleoside triphosphate + DNAn = diphosphate + DNAn+1
|
| Target 1 Pfam Domain Function |
|
| Target 1 Signals |
|
| Target 1 Transmembrane Regions |
|
| Target 1 Essentiality |
Non-Essential |
| Target 1 GenBank ID Protein |
328661  |
| Target 1 UniProtKB/Swiss-Prot ID |
P03369  |
| Target 1 UniProtKB/Swiss-Prot Entry Name |
POL_HV1A2  |
| Target 1 PDB ID |
1VRU  |
| Target 1 PDB File |
Show |
| Target 1 3D Structure |
|
| Target 1 Cellular Location |
- Nucleus. Cytoplasm (By similarity). Following virus entry, the nuclear localization signal (NLS) of
|
| Target 1 Gene Sequence |
>3012 bp
TTTTTTAGGGAAGATCTGGCCTTCCTACAAGGGAAGGCCAGGGAATTTTCTTCAGAGCAG
ACCAGAGCCAACAGCCCCACCAGAAGAGAGCTTCAGGTTTGGGGAGGAGAAAACAACTCC
CTCTCAGAAGCAGGAGCCGATAGACAAGGAACTGTATCCTTTAACTTCCCTCAGATCACT
CTTTGGCAACGACCCCTCGTCACAATAAGGATAGGGGGGCAACTAAAGGAAGCTCTATTA
GATACAGGAGCAGATGATACAGTATTAGAAGAAATGAATTTGCCAGGAAAATGGAAACCA
AAAATGATAGGGGGAATTGGAGGTTTTATCAAAGTAAGACAGTACGATCAGATACCTGTA
GAAATCTGTGGACATAAAGCTATAGGTACAGTATTAGTAGGACCTACACCTGTCAACATA
ATTGGAAGAAATCTGTTGACTCAGATTGGTTGTACTTTAAATTTCCCCATTAGTCCTATT
GAAACTGTACCAGTAAAATTAAAGCCAGGAATGGATGGCCCAAAAGTTAAGCAATGGCCA
TTGACAGAAGAAAAAATAAAAGCATTAGTAGAGATATGTACAGAAATGGAAAAGGAAGGG
AAAATTTCAAAAATTGGGCCTGAAAATCCATACAATACTCCAGTATTTGCTATAAAGAAA
AAAGACAGTACTAAATGGAGAAAACTAGTAGATTTCAGAGAACTTAATAAAAGAACTCAA
GACTTCTGGGAAGTTCAGTTAGGAATACCACACCCCGCAGGGTTAAAAAAGAAAAAATCA
GTAACAGTATTGGATGTGGGTGATGCATACTTTTCAGTTCCCTTAGATAAAGACTTTAGA
AAGTATACTGCATTTACCATACCTAGTATAAACAATGAGACACCAGGGATTAGATATCAG
TACAATGTGCTGCCACAGGGATGGAAAGGATCACCAGCAATATTCCAAAGTAGCATGACA
AAAATCTTAGAGCCTTTTAGAAAACAGAATCCAGACATAGTTATCTATCAATACATGGAT
GATTTGTATGTAGGATCTGACTTAGAAATAGGGCAGCATAGAACAAAAATAGAGGAACTG
AGACAGCATCTGTTGAGGTGGGGATTTACCACACCAGACAAAAAACATCAGAAAGAACCT
CCATTCCTTTGGATGGGTTATGAACTCCATCCTGATAAATGGACAGTACAGCCTATAATG
CTGCCAGAAAAAGACAGCTGGACTGTCAATGACATACAGAAGTTAGTGGGAAAATTGAAT
TGGGCAAGTCAGATTTATGCAGGGATTAAAGTAAAGCAGTTATGTAAACTCCTTAGAGGA
ACCAAAGCACTAACAGAAGTAATACCACTAACAGAAGAAGCAGAGCTAGAACTGGCAGAA
AACAGGGAGATTCTAAAAGAACCAGTACATGAAGTATATTATGACCCATCAAAAGACTTA
GTAGCAGAAATACAGAAGCAGGGGCAAGGCCAATGGACATATCAAATTTATCAAGAGCCA
TTTAAAAATCTGAAAACAGGAAAGTATGCAAGGATGAGGGGTGCCCACACTAATGATGTA
AAACAGTTAACAGAGGCAGTGCAAAAAGTATCCACAGAAAGCATAGTAATATGGGGAAAG
ATTCCTAAATTTAAACTACCCATACAAAAGGAAACATGGGAAGCATGGTGGATGGAGTAT
TGGCAAGCTACCTGGATTCCTGAGTGGGAGTTTGTCAATACCCCTCCCTTAGTGAAATTA
TGGTACCAGTTAGAGAAAGAACCCATAGTAGGAGCAGAAACTTTCTATGTAGATGGGGCA
GCTAATAGGGAGACTAAATTAGGAAAAGCAGGATATGTTACTGACAGAGGAAGACAAAAA
GTTGTCTCCATAGCTGACACAACAAATCAGAAGACTGAATTACAAGCAATTCATCTAGCT
TTGCAGGATTCGGGATTAGAAGTAAACATAGTAACAGACTCACAATATGCATTAGGAATC
ATTCAAGCACAACCAGATAAGAGTGAATCAGAGTTAGTCAGTCAAATAATAGAGCAGTTA
ATAAAAAAGGAAAAGGTCTACCTGGCATGGGTACCAGCACACAAAGGAATTGGAGGAAAT
GAACAAGTAGATAAATTAGTCAGTGCTGGAATCAGGAAAGTACTATTTTTGAATGGAATA
GATAAGGCCCAAGAAGAACATGAGAAATATCACAGTAATTGGAGAGCAATGGCTAGTGAT
TTTAACCTGCCACCTGTAGTAGCAAAAGAAATAGTAGCCAGCTGTGATAAATGTCAGCTA
AAAGGAGAAGCCATGCATGGACAAGTAGACTGTAGTCCAGGAATATGGCAACTAGATTGT
ACACATCTAGAAGGAAAAATTATCCTGGTAGCAGTTCATGTAGCCAGTGGATATATAGAA
GCAGAAGTTATTCCAGCAGAGACAGGGCAGGAAACAGCATATTTTCTCTTAAAATTAGCA
GGAAGATGGCCAGTAAAAACAATACATACAGACAATGGCAGCAATTTCACCAGTACTACG
GTTAAGGCCGCCTGTTGGTGGGCAGGGATCAAGCAGGAATTTGGCATTCCCTACAATCCC
CAAAGTCAAGGAGTAGTAGAATCTATGAATAATGAATTAAAGAAAATTATAGGACAGGTA
AGAGATCAGGCTGAACACCTTAAGACAGCAGTACAAATGGCAGTATTCATCCACAATTTT
AAAAGAAAAGGGGGGATTGGGGGATACAGTGCAGGGGAAAGAATAGTAGACATAATAGCA
ACAGACATACAAACTAAAGAACTACAAAAGCAAATTACAAAAATTCAAAATTTTCGGGTT
TATTACAGGGACAACAAAGATCCCCTTTGGAAAGGACCAGCAAAGCTTCTCTGGAAAGGT
GAAGGGGCAGTAGTAATACAAGATAATAGTGACATAAAAGTAGTGCCAAGAAGAAAAGCA
AAAATCATTAGGGATTATGGAAAACAGATGGCAGGTGATGATTGTGTGGCAAGTAGACAG
GATGAGGATTAG
|
| Target 1 GenBank Gene ID |
|
| Target 1 GeneCard ID |
Not Available |
| Target 1 GenAtlas ID |
Not Available |
| Target 1 HGNC ID |
Not Available |
| Target 1 Chromosome Location |
Not Available |
| Target 1 Locus |
Not Available |
| Target 1 SNPs |
SNPJam Report  |
| Target 1 General References |
- Tyndall JD, Reid RC, Tyssen DP, Jardine DK, Todd B, Passmore M, March DR, Pattenden LK, Bergman DA, Alewood D, Hu SH, Alewood PF, Birch CJ, Martin JL, Fairlie DP: Synthesis, stability, antiviral activity, and protease-bound structures of substrate-mimicking constrained macrocyclic inhibitors of HIV-1 protease. J Med Chem. 2000 Sep 21;43(19):3495-504. [PubMed
]
- Prabu-Jeyabalan M, Nalivaika E, Schiffer CA: Substrate shape determines specificity of recognition for HIV-1 protease: analysis of crystal structures of six substrate complexes. Structure. 2002 Mar;10(3):369-81. [PubMed
]
- Jacks T, Power MD, Masiarz FR, Luciw PA, Barr PJ, Varmus HE: Characterization of ribosomal frameshifting in HIV-1 gag-pol expression. Nature. 1988 Jan 21;331(6153):280-3. [PubMed
]
- Wlodawer A, Miller M, Jaskolski M, Sathyanarayana BK, Baldwin E, Weber IT, Selk LM, Clawson L, Schneider J, Kent SB: Conserved folding in retroviral proteases: crystal structure of a synthetic HIV-1 protease. Science. 1989 Aug 11;245(4918):616-21. [PubMed
]
- Sanchez-Pescador R, Power MD, Barr PJ, Steimer KS, Stempien MM, Brown-Shimer SL, Gee WW, Renard A, Randolph A, Levy JA, et al.: Nucleotide sequence and expression of an AIDS-associated retrovirus (ARV-2). Science. 1985 Feb 1;227(4686):484-92. [PubMed
]
- Rose RB, Craik CS, Douglas NL, Stroud RM: Three-dimensional structures of HIV-1 and SIV protease product complexes. Biochemistry. 1996 Oct 1;35(39):12933-44. [PubMed
]
- Rutenber EE, McPhee F, Kaplan AP, Gallion SL, Hogan JC Jr, Craik CS, Stroud RM: A new class of HIV-1 protease inhibitor: the crystallographic structure, inhibition and chemical synthesis of an aminimide peptide isostere. Bioorg Med Chem. 1996 Sep;4(9):1545-58. [PubMed
]
- Turner BG, Summers MF: Structural biology of HIV. J Mol Biol. 1999 Jan 8;285(1):1-32. [PubMed
]
|
| Target 1 Drug References |
- De Clercq E: New anti-HIV agents and targets. Med Res Rev. 2002 Nov;22(6):531-65. [PubMed
]
|