PMID- 25283548 OWN - NLM STAT- MEDLINE DCOM- 20150702 LR - 20211021 IS - 1471-2164 (Electronic) IS - 1471-2164 (Linking) VI - 15 IP - 1 DP - 2014 Oct 6 TI - High-throughput multiplex HLA genotyping by next-generation sequencing using multi-locus individual tagging. PG - 864 LID - 10.1186/1471-2164-15-864 [doi] LID - 864 AB - BACKGROUND: Unambiguous human leukocyte antigen (HLA) typing is important in transplant matching and disease association studies. High-resolution HLA typing that is not restricted to the peptide-binding region can decrease HLA allele ambiguities. Cost and technology constraints have hampered high-throughput and efficient high resolution unambiguous HLA typing. We have developed a method for HLA genotyping that preserves the very high-resolution that can be obtained by next-generation sequencing (NGS) but also achieves substantially increased efficiency. Unambiguous HLA-A, B, C and DRB1 genotypes can be determined for 96 individuals in a single run of the Illumina MiSeq. RESULTS: Long-range amplification of full-length HLA genes from four loci was performed in separate polymerase chain reactions (PCR) using primers and PCR conditions that were optimized to reduce co-amplification of other HLA loci. Amplicons from the four HLA loci of each individual were then pooled and subjected to enzymatic library generation. All four loci of an individual were then tagged with one unique index combination. This multi-locus individual tagging (MIT) method combined with NGS enabled the four loci of 96 individuals to be analyzed in a single 500 cycle sequencing paired-end run of the Illumina-MiSeq. The MIT-NGS method generated sequence reads from the four loci were then discriminated using commercially available NGS HLA typing software. Comparison of the MIT-NGS with Sanger sequence-based HLA typing methods showed that all the ambiguities and discordances between the two methods were due to the accuracy of the MIT-NGS method. CONCLUSIONS: The MIT-NGS method enabled accurate, robust and cost effective simultaneous analyses of four HLA loci per sample and produced 6 or 8-digit high-resolution unambiguous phased HLA typing data from 96 individuals in a single NGS run. FAU - Ehrenberg, Philip K AU - Ehrenberg PK FAU - Geretz, Aviva AU - Geretz A FAU - Baldwin, Karen M AU - Baldwin KM FAU - Apps, Richard AU - Apps R FAU - Polonis, Victoria R AU - Polonis VR FAU - Robb, Merlin L AU - Robb ML FAU - Kim, Jerome H AU - Kim JH FAU - Michael, Nelson L AU - Michael NL FAU - Thomas, Rasmi AU - Thomas R AD - U, S, Military HIV Research Program (MHRP), Walter Reed Army Institute of Research, 503 Robert Grant Avenue, Silver Spring, MD, USA. rthomas@hivresearch.org. LA - eng PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20141006 PL - England TA - BMC Genomics JT - BMC genomics JID - 100965258 RN - 0 (HLA-A Antigens) RN - 0 (HLA-B Antigens) RN - 0 (HLA-C Antigens) RN - 0 (HLA-DRB1 Chains) SB - IM MH - Genotyping Techniques/methods MH - HLA-A Antigens/*genetics MH - HLA-B Antigens/*genetics MH - HLA-C Antigens/*genetics MH - HLA-DRB1 Chains/*genetics MH - High-Throughput Nucleotide Sequencing MH - Histocompatibility Testing/*methods/trends MH - Humans MH - Sensitivity and Specificity MH - Sequence Analysis, DNA PMC - PMC4196003 EDAT- 2014/10/07 06:00 MHDA- 2015/07/03 06:00 PMCR- 2014/10/06 CRDT- 2014/10/07 06:00 PHST- 2014/04/11 00:00 [received] PHST- 2014/09/23 00:00 [accepted] PHST- 2014/10/07 06:00 [entrez] PHST- 2014/10/07 06:00 [pubmed] PHST- 2015/07/03 06:00 [medline] PHST- 2014/10/06 00:00 [pmc-release] AID - 1471-2164-15-864 [pii] AID - 6530 [pii] AID - 10.1186/1471-2164-15-864 [doi] PST - epublish SO - BMC Genomics. 2014 Oct 6;15(1):864. doi: 10.1186/1471-2164-15-864.