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Drug-Target Interaction

Drug

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PubChem ID:148124
Structure:
Synonyms:
(2alpha,5beta,7beta,10beta,13alpha)-4-(acetyloxy)-13-({(2R,3S)-3-[(tert-bu
(2alpha,5beta,7beta,10beta,13alpha)-4-(acetyloxy)-13-({(2R,3S)-3-[(tert-butoxycarbonyl)amino]-2-hydroxy-3-phenylpropanoyl}oxy)-1,7,10-trihydroxy-9-oxo-5,20-epoxytax-11-en-2-yl benzoate
(2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-12b-(acetyloxy)-12-(benzoyloxy)-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-4,6,11-trihydroxy-4a,8,13,13-tetramethyl-5-oxo-7,11-methano-1H-cyclodeca[3,4]benz[1,2-b]oxet-9-yl (aR,bS)-b-[[(1,1-dimethylethoxy)carbonyl]amino]-a-hydroxybenzenepropanoate
01885_FLUKA
114977-28-5
ANX-514
C11231
CHEBI:4672
DB01248
Docetaxel
Docetaxel (INN)
Docetaxel (TN)
Docetaxel anhydrous
Docetaxel, Trihydrate
Docetaxol
EmDOC
nchembio.2007.34-comp7
nchembio853-comp8
NSC-628503
RP-56976
SDP-014
SL-00678
TAXOTERE
Taxotere (TN)
Taxotere(R)
TXL
XRP-6976L
ATC-Codes:

Target

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Uniprot ID:CP1B1_HUMAN
Synonyms:
CYPIB1
Cytochrome P450 1B1
EC-Numbers:1.14.14.1
Organism:Homo sapiens
Human
PDB IDs:-

Binding Affinities:

Ki: Kd:Ic 50:Ec50/Ic50:
----
----

References:

11160641
Human CYP1B1 and anticancer agent metabolism: mechanism for tumor-specific drug inactivation?. B Rochat; J M Morsman; G I Murray; W D Figg; H L McLeod (2001) The Journal of pharmacology and experimental therapeutics display abstract
The cytochrome P450 1B1 (CYP1B1) is involved in the metabolism of procarcinogens and xenobiotics. Human CYP1B1 protein has been detected in a variety of tumors but is not detected in adjacent normal tissues or in liver. This suggests that CYP1B1 could biotransform anticancer agents specifically in the target cells. The interaction between CYP1B1 and 12 commonly used anticancer drugs was screened using an ethoxyresorufin deethylase assay. Four agents were competitive inhibitors of CYP1B1 activity: flutamide (K(i) = 1.0 microM), paclitaxel (K(i) = 31.6 microM), mitoxantrone (K(i) = 11.6 microM), and docetaxel (K(i) = 28.0 microM). Doxorubicin (K(i) = 2.6 microM) and daunomycin (K(i) = 2.1 microM) were mixed inhibitors, while tamoxifen was a noncompetitive inhibitor (K(i) = 5.0 microM). Vinblastine, vincristine, 5-fluorouracil, etoposide, and cyclophosphamide did not inhibit CYP1B1 activity. In vitro incubations with flutamide and CYP1B1 produced a metabolite consistent with 2-hydroxyflutamide. Comparison of kinetic parameters (K(m), K(i), V(max)) for flutamide 2-hydroxylation by CYP1B1, CYP1A1, and CYP1A2 indicate that CYP1B1 could play a major role for flutamide biotransformation in tumors. The results obtained indicate that several anticancer agents inhibit CYP1B1 activity. Drug inactivation by CYP1B1 may represent a novel mechanism of resistance, influencing the clinical outcome of chemotherapy.
12386117