PMID- 25087472 OWN - NLM STAT- MEDLINE DCOM- 20150331 LR - 20211021 IS - 1471-2164 (Electronic) IS - 1471-2164 (Linking) VI - 15 IP - 1 DP - 2014 Aug 4 TI - A Bead-based Normalization for Uniform Sequencing depth (BeNUS) protocol for multi-samples sequencing exemplified by HLA-B. PG - 645 LID - 10.1186/1471-2164-15-645 [doi] LID - 645 AB - BACKGROUND: Human leukocyte antigen (HLA) is a group of genes that are extremely polymorphic among individuals and populations and have been associated with more than 100 different diseases and adverse drug effects. HLA typing is accordingly an important tool in clinical application, medical research, and population genetics. We have previously developed a phase-defined HLA gene sequencing method using MiSeq sequencing. RESULTS: Here we report a simple, high-throughput, and cost-effective sequencing method that includes normalized library preparation and adjustment of DNA molar concentration. We applied long-range PCR to amplify HLA-B for 96 samples followed by transposase-based library construction and multiplex sequencing with the MiSeq sequencer. After sequencing, we observed low variation in read percentages (0.2% to 1.55%) among the 96 demultiplexed samples. On this basis, all the samples were amenable to haplotype phasing using our phase-defined sequencing method. In our study, a sequencing depth of 800x was necessary and sufficient to achieve full phasing of HLA-B alleles with reliable assignment of the allelic sequence to the 8 digit level. CONCLUSIONS: Our HLA sequencing method optimized for 96 multiplexing samples is highly time effective and cost effective and is especially suitable for automated multi-sample library preparation and sequencing. FAU - Hosomichi, Kazuyoshi AU - Hosomichi K FAU - Mitsunaga, Shigeki AU - Mitsunaga S FAU - Nagasaki, Hideki AU - Nagasaki H FAU - Inoue, Ituro AU - Inoue I AD - Division of Human Genetics, National Institute of Genetics, 1111 Yata, Mishima, 411-8540 Shizuoka, Japan. itinoue@nig.ac.jp. LA - eng SI - SRA/DRA001289 PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140804 PL - England TA - BMC Genomics JT - BMC genomics JID - 100965258 RN - 0 (HLA-B Antigens) SB - IM MH - Cost-Benefit Analysis MH - HLA-B Antigens/*genetics MH - High-Throughput Nucleotide Sequencing/economics/*methods MH - Humans MH - Polymerase Chain Reaction MH - Sequence Analysis, DNA/economics/*methods PMC - PMC4133082 EDAT- 2014/08/05 06:00 MHDA- 2015/04/01 06:00 PMCR- 2014/08/04 CRDT- 2014/08/05 06:00 PHST- 2014/01/28 00:00 [received] PHST- 2014/07/30 00:00 [accepted] PHST- 2014/08/05 06:00 [entrez] PHST- 2014/08/05 06:00 [pubmed] PHST- 2015/04/01 06:00 [medline] PHST- 2014/08/04 00:00 [pmc-release] AID - 1471-2164-15-645 [pii] AID - 6340 [pii] AID - 10.1186/1471-2164-15-645 [doi] PST - epublish SO - BMC Genomics. 2014 Aug 4;15(1):645. doi: 10.1186/1471-2164-15-645.