Illumina HiSeq 2500 paired end sequencing; GSM2668205: LSK1; Mus musculus; RNA-Seq

LSK1

Using different surface markers it has been possible to isolate lymphoid lineage-biased progentors and test their potential in vivo and in vitro. Here we apply single cell sequencing of lymphoid progenitors to obtain further insights into differentiation and commitment to the lymphoid lineage. Overall design: Single cells  from the bone marrow from various stages during lymphoid differentiation were sorted into 384-well plates based on their surface marker expression of Flt3, Sca-1 and c-Kit  and processed using a modified version of the CEL-Seq2 protocol (Hashimshony et al. 2016, Genome Biology, DOI: 10.1186/s13059-016-0938-8). In addition the original version of the CEL-Seq2 protoco and thel modified versions with different volume reductions and were compared using murine embryonic stem cells.

Single cell RNA sequencing data of bone marrow lymphoid progenitors

Submitted by Gene Expression Omnibus on 10-APR-2018

Bone marrow of 5-week old male C57BL/6J wildtype mice purchased from Charles River or from in house breedings of C57BL/6J wildtype mice was isolated from femora and tibiae by flushing using 1x MojoSort™ Buffer (BioLegend®, 480017). Hematopoietic progenitors were enriched using the MojoSort™ Mouse Hematopoietic Progenitor Cell Isolation Kit (BioLegend®, 480004), stained and sorted according to different surface markers. The aRNA was reversely transcribed in order to generate libraries for sequencing, as previously described18. 1 µl of custom random hexamer RT primers (GCCTTGGCACCCGAGAATTCCANNNNNN) and 0.5 µl of 10mM dNTP were added to the aRNA. The samples were incubated at 65˚C for 5 min and cooled to 4˚C afterwards. Thereafter 4 µl of First Strand Reaction Mix containing SuperScript™ II Reverse Transcriptase and Buffer (Invitrogen, 18064014) and RnaseOUT™ (Invitrogen, 10777019) was added and samples were first incubated at 25˚C for 10 min followed by incubation at 42˚C for 1 hour. To every sample 2 µl of one uniquely indexed RPI index primer and 2 µl of RP1 primer (TruSeq Library Prep, sequences available from Illumina), 25 µl of Phusion® High-Fidelity PCR Master Mix with HF Buffer (NEB, M0531) and 11 µl of nuclease-free water were added. PCR was performed using 98˚C for 30 s as initial step, followed by 11 cycles of amplification (98˚C for 10 s, 60˚C for 30 s, 72˚C for 30 s) and a final extension at 72˚C for 10 min. To each sample 1 volume (50 µl) of Agencourt® AMPure XP beads (Beckman Coulter, A63881) was added and the samples were incubated at 25˚C for 15 min. The samples were incubated for 5 min on a magnetic stand (96 well format), the supernatant was removed and the beads were washed twice by adding 180 µl of 80 % ethanol and by incubating for 40 s. Ethanol was removed and beads were dried for 10 min at room temperature. DNA was eluted with 25 µl nuclease-free water and the purification was repeated with an adjusted volume of magnetic beads (25 µl). After the final step the samples were eluted in 10 µl nuclease-free water. DNA concentration and fragment size were determined using the Qubit® dsDNA HS Assay Kit (Invitrogen, Q32854) and the Agilent High Sensitivity DNA Kit for Bioanalyzer (Agilent Technologies, 5067-4627), respectively. Libraries were sequenced on an Illumina HiSeq 2500 System in high output run mode at a depth of 150000 to 200000 reads per cell. CEL-Seq2 (Hasimshony et al. 2016, Genome Biology, DOI: 10.1186/s13059-016-0938-8)

Single cell RNA sequencing data of bone marrow lymphoid progenitors

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