Unknown,Transcriptomics,Genomics,Proteomics

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Whole Exome Sequencing Data of Dabrafenib Resistant HT-29 Cell Line

ABSTRACT: HT-29 cells were barcoded using the CloneTracker lentiviral barcode library and then dabrafenib resistant derivatives of these cell lines were established, respectively. Five million barcoded HT-29 cells were seeded into 15 cm cell culture dishes. When the cells reached confluency, two million cells per dish were seeded into four different 15 cm dishes (DMSO Control, Replica A, B, C) and two million cell pellets were stocked as initial cell population. Harvesting used medium through the experiment was performed at monthly intervals. Barcoded HT-29 cell line replicates A, B, and C were treated with 2XIC50 (199.6 nM) of dabrafenib concentration for the duration of 3 months.Barcoded data can be accessed via accession code E-MTAB-13018. Whole exome sequencing of dabrafenib-resistant A replicate and DMSO control cell lines were carried out.

INSTRUMENT(S): DNBSEQ-G400

ORGANISM(S): Homo sapiens

SUBMITTER: Kübra Yılmaz

PROVIDER: E-MTAB-13338 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Project description:Approximately 2x106 CL1-5 and H23 cells were seeded on 10-cm dishes with RPMI-1640 medium containing 10% fetal bovine serum. After the cells covered 80% of the dish, cells were serum-starved for 24 h in RPMI-1640 medium. CL1-5 and H23 cell lysates were harvested, trypsinized and analyzed by using LTQ-Orbitrap XL and LTQ-Orbitrap Discovery, respectively. Halobacterium salinarum NRC-1 (ATCC700922) starter culture was prepared by inoculating a single colony in 5 mL of Halobacterium medium containing trace metals (CM+) and grown at 37 °C with shaking at 225 rpm for one week. An aliquot of 300 μL of the culture was spread on 15-cm diameter CM+ plates containing 2% of agarose. After 7~10 days of incubation at 37 °C, the GVs from cells on 10 plates were harvested using the centrifugation facilitated flotation method as previously described except the GVs were washed for a total of 5 times instead of the suggested 3 times to remove nonspecific bound proteins.(29) After collecting the gas vesicles in the primary cell lysate, the cell membrane and residual GV were removed by ultracentrifugation at 53 000× g, 4 °C for 16 h twice to obtain the GV-depleted lysate (GVD). GVD lysate was harvested, trypsinized and analyzed by using LC-MS/MS ( LTQ-Orbitrap XL). The H. salinarum strain NRC-1 was grown in complex medium (CM+) at 37 oC with shaking (200 rpm) to an OD600 of 0.5 (early exponential phase. The cultures were then subjected to an additional hour of incubation at 37 oC for preparation of proteins. The total lysate was harvested, trypsinized and analyzed by using LC-MS/MS (LTQ-Orbitrap Discovery). All MS raw data in Thermo XCalibur (version 2.0.7) binary format were converted to the mzXML open data format using a modified version of the ReAdW program. SEQUEST (version 27) was applied to search the MS/MS spectra against the forward and reverse (decoy) protein sequences of H. salinarum (2,427 proteins; EMBL-EBI Integr8, www.ebi.ac.uk/integr8/EBI-Integr8-HomePage.do) or human (38,425 proteins) plus bovine (22,863 proteins) (GenBank reference sequences, www.ncbi.nlm.nih.gov). SEQUEST results were further processed using the Trans Proteomic Pipeline.

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Whole Exome Sequencing Data of Dabrafenib Resistant HT-29 Cell Line

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