PMID- 27695917 OWN - NLM STAT- MEDLINE DCOM- 20170515 LR - 20221207 IS - 1432-1211 (Electronic) IS - 0093-7711 (Print) IS - 0093-7711 (Linking) VI - 69 IP - 1 DP - 2017 Jan TI - Elucidating the origin of HLA-B*73 allelic lineage: Did modern humans benefit by archaic introgression? PG - 63-67 LID - 10.1007/s00251-016-0952-8 [doi] AB - A previous study reported that some of the human leukocyte antigen (HLA) alleles and haplotypes in present-day humans were acquired by admixture with archaic humans; specifically, an exceptionally diverged HLA-B*73 allele was proposed to be transmitted from Denisovans, although the DNA sequence of HLA-B*73 has not been detected in the Denisovan genome. Here, we argue against the hypothesis that HLA-B*73 introgressed from Denisovans into early modern humans. A phylogenetic analysis revealed that HLA-B*73:01 formed a monophyletic group with a chimpanzee MHC-B allele, strongly suggesting that the HLA-B*73 allelic lineage has been maintained in humans as well as in chimpanzees since the divergence of humans and chimpanzees. The global distribution of HLA-B*73 allele showed that the population frequency of HLA-B*73 in west Asia (0.24 %)-a possible site of admixture with Denisovans-is lower than that in Europe (0.72 %) and in south Asia (0.69 %). Furthermore, HLA-B*73 is not observed in Melanesia even though the Melanesian genome contains the highest proportion of Denisovan ancestry in present-day human populations. Single nucleotide polymorphisms in HLA-A*11-HLA-C*12:02 or HLA-A*11-C*15 haplotypes, one of which was assumed to be transmitted together with HLA-B*73 from Denisovans by the study of Abi-Rached and colleagues, were not differentiated from those in other HLA-A-C haplotypes in modern humans. These results do not support the introgression hypothesis. Thus, we conclude that it is highly likely that HLA-B*73 allelic lineage has been maintained in the direct ancestors of modern humans. FAU - Yasukochi, Yoshiki AU - Yasukochi Y AD - Department of Human Functional Genomics, Life Science Research Center, Mie University, 1577 Kurima-machiya, Tsu, Mie, 514-8507, Japan. hyasukou@proof.ocn.ne.jp. FAU - Ohashi, Jun AU - Ohashi J AD - Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan. LA - eng PT - Journal Article DEP - 20160930 PL - United States TA - Immunogenetics JT - Immunogenetics JID - 0420404 RN - 0 (HLA-B Antigens) RN - 0 (HLA-B73 antigen) SB - IM MH - Alleles MH - Animals MH - Asian People/genetics MH - Black People/genetics MH - Europe MH - *Evolution, Molecular MH - *Genome, Human MH - HLA-B Antigens/*genetics MH - Haplotypes/*genetics MH - Hominidae/classification/*genetics MH - Humans MH - Neanderthals/genetics MH - Pan troglodytes/genetics MH - Phylogeny PMC - PMC5203853 OTO - NOTNLM OT - Allelic divergence OT - Denisovan OT - HLA OT - HLA-B*73 OT - Introgression OT - Neanderthal EDAT- 2016/10/04 06:00 MHDA- 2017/05/16 06:00 PMCR- 2016/09/30 CRDT- 2016/10/04 06:00 PHST- 2016/07/14 00:00 [received] PHST- 2016/09/16 00:00 [accepted] PHST- 2016/10/04 06:00 [pubmed] PHST- 2017/05/16 06:00 [medline] PHST- 2016/10/04 06:00 [entrez] PHST- 2016/09/30 00:00 [pmc-release] AID - 10.1007/s00251-016-0952-8 [pii] AID - 952 [pii] AID - 10.1007/s00251-016-0952-8 [doi] PST - ppublish SO - Immunogenetics. 2017 Jan;69(1):63-67. doi: 10.1007/s00251-016-0952-8. Epub 2016 Sep 30.