PMID- 15569626 OWN - NLM STAT- MEDLINE DCOM- 20060707 LR - 20190902 IS - 1093-9946 (Print) IS - 1093-4715 (Linking) VI - 10 DP - 2005 Jan 1 TI - A framework to sub-type HLA supertypes. PG - 879-86 AB - The human leukocyte antigen (HLA) alleles are extremely polymorphic among ethnic population and the peptide binding specificity varies for different alleles in a combinatorial manner. However, it has been suggested that majority of alleles can be covered within few HLA supertypes, where different members of a supertype bind similar peptides, yet exhibiting distinct repertoires. Since the overlap between different members of a supertype appears to be extensive, it is crucial to develop a framework for grouping alleles into supertypes just from sequence information. In this report, we define sub supertypes, where members show functional overlap with identical repertoire, and describe a strategy to group HLA-A, B and C alleles into different categories of sub supertypes. The strategy grouped 47% of 295 A alleles, 44% of 540 B alleles and 35% of 156 C alleles to just 36, 71 and 18 groups, respectively. The grouping is moderately validated using available binding data. However, the validation is limited due to lack of binding data. Hence, the data presented in this article serve as a framework to test specific functional overlap between alleles. The grouping of HLA alleles into different categories of sub supertypes has profound use in the understanding of antigenic peptide selection, degeneration and discrimination during T-cell mediated immune response. A complete knowledge of this phenomenon finds utility in epitope design for the development of HLA based vaccines and immuno-therapeutics. FAU - Kangueane, Pandjassarame AU - Kangueane P AD - School of Mechanical and Production Engineering, Nanyang Technological University, Nanyang Centre for Supercomputing and Visualization, Singapore 639798. mpandjassarame@ntu.edu.sg FAU - Sakharkar, Meena Kishore AU - Sakharkar MK FAU - Rajaseger, Ganapathy AU - Rajaseger G FAU - Bolisetty, Subhashini AU - Bolisetty S FAU - Sivasekari, Balasubramanian AU - Sivasekari B FAU - Zhao, Bing AU - Zhao B FAU - Ravichandran, Manickam AU - Ravichandran M FAU - Shapshak, Paul AU - Shapshak P FAU - Subbiah, Subramanian AU - Subbiah S LA - eng GR - DA014533/DA/NIDA NIH HHS/United States GR - GM056529/GM/NIGMS NIH HHS/United States 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, P.H.S. PT - Review DEP - 20050101 PL - United States TA - Front Biosci JT - Frontiers in bioscience : a journal and virtual library JID - 9709506 RN - 0 (HLA Antigens) RN - 0 (HLA-A Antigens) RN - 0 (HLA-B Antigens) RN - 0 (HLA-C Antigens) RN - 0 (Peptides) RN - 0 (Vaccines) SB - IM MH - Alleles MH - Genotype MH - HLA Antigens/*chemistry MH - HLA-A Antigens/chemistry MH - HLA-B Antigens/chemistry MH - HLA-C Antigens/chemistry MH - Histocompatibility Testing/*methods MH - Humans MH - Immunophenotyping/*methods MH - Peptides/chemistry MH - Protein Binding MH - Vaccines/chemistry RF - 15 EDAT- 2004/12/01 09:00 MHDA- 2006/07/11 09:00 CRDT- 2004/12/01 09:00 PHST- 2004/12/01 09:00 [pubmed] PHST- 2006/07/11 09:00 [medline] PHST- 2004/12/01 09:00 [entrez] AID - 1582 [pii] AID - 10.2741/1582 [doi] PST - epublish SO - Front Biosci. 2005 Jan 1;10:879-86. doi: 10.2741/1582. Print 2005 Jan 1.