Unknown

Dataset Information

0

Characterisation of Dermanyssus gallinae glutathione S-transferases and their potential as acaricide detoxification proteins.


ABSTRACT: Glutathione S-transferases (GSTs) facilitate detoxification of drugs by catalysing the conjugation of the reduced glutathione (GSH) to electrophilic xenobiotic substrates and therefore have a function in multi-drug resistance. As a result, knowledge of GSTs can inform both drug resistance in, and novel interventions for, the control of endo- and ectoparasite species. Acaricide resistance and the need for novel control methods are both pressing needs for Dermanyssus gallinae, a highly economically important haematophagous ectoparasite of poultry.A transcriptomic database representing D. gallinae was examined and 11 contig sequences were identified with GST BlastX identities. The transcripts represented by 3 contigs, designated Deg-GST-1, -2 and -3, were fully sequenced and further characterized by phylogenetic analysis. Recombinant versions of Deg-GST-1, -2 and -3 (rDeg-GST) were enzymically active and acaricide-binding properties of the rDeg-GSTs were established by evaluating the ability of selected acaricides to inhibit the enzymatic activity of rDeg-GSTs.6 of the identified GSTs belonged to the mu class, followed by 3 kappa, 1 omega and 1 delta class molecules. Deg-GST-1 and -3 clearly partitioned with orthologous mu class GSTs and Deg-GST-2 partitioned with delta class GSTs. Phoxim, permethrin and abamectin significantly inhibited rDeg-GST-1 activity by 56, 35 and 17% respectively. Phoxim also inhibited rDeg-2-GST (14.8%) and rDeg-GST-3 (20.6%) activities.Deg-GSTs may have important roles in the detoxification of pesticides and, with the increased occurrence of acaricide resistance in this species worldwide, Deg-GSTs are attractive targets for novel interventions.

SUBMITTER: Bartley K 

PROVIDER: S-EPMC4491418 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature

altmetric image

Publications

Characterisation of Dermanyssus gallinae glutathione S-transferases and their potential as acaricide detoxification proteins.

Bartley Kathryn K   Wright Harry W HW   Bull Robert S RS   Huntley John F JF   Nisbet Alasdair J AJ  

Parasites & vectors 20150626


<h4>Background</h4>Glutathione S-transferases (GSTs) facilitate detoxification of drugs by catalysing the conjugation of the reduced glutathione (GSH) to electrophilic xenobiotic substrates and therefore have a function in multi-drug resistance. As a result, knowledge of GSTs can inform both drug resistance in, and novel interventions for, the control of endo- and ectoparasite species. Acaricide resistance and the need for novel control methods are both pressing needs for Dermanyssus gallinae, a  ...[more]

Similar Datasets

| S-EPMC3283649 | biostudies-other
| S-EPMC2890653 | biostudies-literature
| PRJNA489118 | ENA
| PRJNA905374 | ENA
| PRJNA188347 | ENA
| PRJDB9866 | ENA
| S-EPMC5059928 | biostudies-literature
| S-EPMC9486002 | biostudies-literature
| S-EPMC6256547 | biostudies-literature
| S-EPMC3244946 | biostudies-literature