Ontology highlight
ABSTRACT:
PROVIDER: PRJNA798458 | ENA |
REPOSITORIES: ENA
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Project description:The ATP-binding cassette subfamily B member 1 (ABCB1), encoding a multidrug transporter P-glycoprotein, plays a critical role in the efflux of xenobiotics in humans and is implicated in cancer resistance to chemotherapy—however, little information regarding Pgp at the zebrafish. In addition, to study the function of Pgp in the zebrafish brain in the aging process, we performed RNA-seq using brain tissue of WT and abcb4 knockout zebrafish at different ages, such as 2 months and 30 months.
2023-07-14 | E-MTAB-12901 | biostudies-arrayexpress
Project description:Drug efflux is a common resistance mechanism found in bacteria and cancer cells. Although several structures of drug efflux pumps are available, they provide only limited functional information on the phenomenon of drug efflux. Here, we performed deep mutational scanning (DMS) on the bacterial ATP binding cassette (ABC) transporter EfrCD from Enterococcus faecalis to determine the drug efflux activity profile of more than 1400 single variants
2021-11-25 | GSE189399 | GEO
Project description:Trace concentrations of vanadium (V) have several benefits for plant growth, but high concentrations are toxic. To help characterize the cellular mechanisms underlying the toxic effects of V in plants, we present the first large-scale analysis of rice root responding to V during the early stages (1 and 3 h) of toxicity. Exposure to V triggered changes in the transcript levels of several genes related to cellular metabolic process, response to stimulus and transporters. Gene expression profiling revealed upregulated levels of genes associated with signaling and biosynthesis of auxin, abscisic acid (ABA) and jasmonic acid (JA) in V-treated rice roots. In addition, V upregulated the expression of ATP-dependent GSH-conjugated transport, ATP binding cassette (ABC) transporter, and markedly downregulated of the expression of divalent cation transporters, drug/metabolite transporter (DMT) and zinceiron permease (ZIP). Among the V-specific responsive transcription factors and protein kinases, the most predominant families were NAC (NAM, ATAF, CUC) transcription factor, receptor-like cytoplasmic kinase VII (RLCK-VII) and leucinerich repeat kinase VIII (LRR-VIII). These microarray data provide a new insight into the molecular mechanism of the rice roots response to V toxicity. Trace concentrations of vanadium (V) have several benefits for plant growth, but high concentrations are toxic. To help characterize the cellular mechanisms underlying the toxic effects of V in plants, we present the first large-scale analysis of rice root responding to V during the early stages (1 and 3 h) of toxicity. Exposure to V triggered changes in the transcript levels of several genes related to cellular metabolic process, response to stimulus and transporters. Gene expression profiling revealed upregulated levels of genes associated with signaling and biosynthesis of auxin, abscisic acid (ABA) and jasmonic acid (JA) in V-treated rice roots. In addition, V upregulated the expression of ATP-dependent GSH-conjugated transport, ATP binding cassette (ABC) transporter, and markedly downregulated of the expression of divalent cation transporters, drug/metabolite transporter (DMT) and zinceiron permease (ZIP). Among the V-specific responsive transcription factors and protein kinases, the most predominant families were NAC (NAM, ATAF, CUC) transcription factor, receptor-like cytoplasmic kinase VII (RLCK-VII) and leucinerich repeat kinase VIII (LRR-VIII). These microarray data provide a new insight into the molecular mechanism of the rice roots response to V toxicity.
2014-11-11 | GSE63152 | GEO
Project description:Previous work has demonstrated that non-synonymous mutations in the gene encoding the putative transcription factor CpMrr1 can influence fluconazole susceptibility; however, the direct contribution of these mutations and how they influence fluconazole resistance in clinical isolates is poorly understood. We identified ten non-synonymous CpMRR1 mutations in a collection of 35 fluconazole resistant clinical isolates. The mutations leading to the A854V, R479K, and I283R substitutions were further examined and found to be activating mutations leading to increased fluconazole resistance. In addition to CpMDR1, we identified another major facilitator superfamily (MFS) transporter gene (CpMDR1B, CPAR2_603010) and an ATP-binding Cassette (ABC) transporter gene (CpCDR1B, CPAR2_304370), as being up-regulated in isolates carrying CpMRR1 activating mutations.
2022-04-18 | GSE196409 | GEO
Project description:ATP binding cassette transporter A1 (ABCA1) regulates cellular cholesterol efflux. We characterized the gene expression changes following hepatocyte specific ABCA1 deletion in mice. We report that genes and pathways related to lipogenesis were downregulated in mice with hepatocyte specific ABCA1 deletion compared to floxed controls.
2017-06-06 | GSE96093 | GEO
Project description:ATP binding cassette subfamily member 1 (ABCA1) and G1 (ABCG1) are cholesterol efflux transporter to prevent excess intracellular cholesterol accumulation. We here report the deletion of Abca1 and Abcg1 results in the significant increased expression of Cd38, a multi-faceted ectoenzyme with NADase activity.
2024-04-17 | GSE234507 | GEO
Project description:Abcb5 is a member of the ATP-Binding Cassette (ABC) transporter superfamily. It is an energy dependent transporter and its role is unknown yet. We are characterizing this transporter at the genomic and protein level. We know that it is highly expressed in pigmented cells, including pigmented cells of the CNS (retinal pigment epithelium and basal ganglion cells). We found it highly expressed in melanotic melanoma and in alveolar soft part sarcoma.
2024-12-01 | GSE57699 | GEO
Project description:Irinotecan (CPT-11) is now widely used as the first-line chemotherapy for mCRC. There were 4 key enzymes for CPT-11 metabolizing, CYP3A4, UDP-glucuronosyltransferase, carboxylesterase(CES), and ATP-binding cassette (ABC) transporters. Genetic variations of those enzymes may cause the heterogeneity in safety and efficacy of CPT-11. The aim of this study is to figure out the correlation between the genetic polymorphism and the drug response.
| 2101269 | ecrin-mdr-crc
Project description:We investigated the transcriptional response of yeast to the loss of a single copy of ARH1; an oxidoreductase of the mitochondrial inner membrane, which is among the few mitochondrial proteins that is essential for viability in yeast, ATM1; the mitochondrial inner membrane ATP-binding cassette (ABC) transporter, and of YFH1; the mitochondrial matrix iron chaperone, which oxidizes and stores iron, and interacts with Isu1p to promote Fe-S cluster assembly.
2019-08-13 | E-MTAB-7648 | biostudies-arrayexpress
Project description:Plants are exposed to antibiotics produced by soil microorganisms but little is known about their responses at the transcriptional level. Likewise, few endogenous mechanisms of antibiotic resistance have been reported. The Arabidopsis thaliana ATP Binding Cassette (ABC) transporter AtWBC19 (ABCG19) is known to confer kanamycin resistance, but the exact mechanism of resistance is not well understood. Here we examined the transcriptomes of control seedlings and wbc19 mutant seedlings using RNA-seq analysis. Exposure to kanamycin indicated changes in the organization of the photosynthetic apparatus, metabolic fluxes and metal uptake. Elemental analysis showed a 60% and 80% reduction of iron uptake in control and wbc19 mutant seedlings respectively, upon exposure to kanamycin. The drop in iron content was accompanied by the upregulation of the gene encoding for FERRIC REDUCTION OXIDASE 6 (FRO6) in mutant seedlings but not by the differential expression of other transport genes known to be induced by iron deficiency. In addition, wbc19 mutants displayed a distinct expression profile in the absence of kanamycin. Most notably, the expression of several zinc ion binding proteins, including ZINC TRANSPORTER 1 PRECURSOR (ZIP1), was increased, suggesting abnormal zinc uptake. Elemental analysis confirmed a 50% decrease of zinc content in wbc19 mutants. Thus, the antibiotic resistance gene WBC19 appears to also have a role in zinc uptake. Examination of transcriptome in control and wbc19 mutant seedlings with or without exposure to kanamycin.
2014-06-20 | E-GEOD-58662 | biostudies-arrayexpress