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IgM heavy chain V(D)J library sequencing using varied PCR parameters

When amplifying the rearranged V(D)J genes encoding antigen receptors during adaptive immune receptor repertoire sequencing (AIRR-seq), each cycle of the PCR can produce spurious “chimeric” hybrids of two or more different template sequences. To test the effects of PCR protocol variation on chimera formation in AIRR-seq, we produced IgM heavy chain V(D)J repertoire libraries under 8 conditions, varying the number of PCR cycles, indexing PCR template, input RNA, and extension time. Three donors were sequenced using all 8 conditions.

Type: RNASeq
Archiver: European Genome-phenome Archive (EGA)

1 Dataset 1 Publication

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Dataset ID	Description	Technology	Samples
EGAD50000001510	Peripheral blood mononuclear cells (PBMCs) were sampled from 3 healthy donors to sequence IgM heavy chain V(D)J repertoire libraries. Libraries were generated by targeting IgM heavy chain V(D)Js with a 5’MTPX primerset and sequenced on an Illumina MiSeq machine. Each donor was sequenced 8 times, varying only PCR amplification conditions, for a total of 24 sequencing libraries and therefore 48 paired-end fastq files.	Illumina MiSeq	3

Publications	Citations
Detection of PCR chimeras in adaptive immune receptor repertoire sequences. Chernyshev M, Stålmarck A, Corcoran M, Karlsson Hedestam GB, Murrell B. Bioinformatics 41: 2025 btaf576	1