PMID- 16511245 OWN - NLM STAT- MEDLINE DCOM- 20060602 LR - 20240322 IS - 1744-3091 (Electronic) IS - 1744-3091 (Linking) VI - 61 IP - Pt 12 DP - 2005 Dec 1 TI - X-ray diffraction analysis of crystals from the human major histocompatibility antigen HLA-B*2706 in complex with a viral peptide and with a self-peptide. PG - 1097-9 AB - The human leukocyte antigen (HLA) alleles HLA-B*2704 and HLA-B*2706 show an ethnically restricted distribution and are differentially associated with ankylosing spondylitis, with HLA-B*2706 lacking association with this autoimmune disease. However, the products of the two alleles differ by only two amino acids, at heavy-chain residues 114 (His in HLA-B*2704; Asp in HLA-B*2706) and 116 (Asp in HLA-B*2704; Tyr in HLA-B*2706). Both residues could be involved in contacting amino acids of a bound peptide, suggesting that peptides presented by these subtypes play a role in disease pathogenesis. Two HLA-B*2706-peptide complexes were crystallized using the hanging-drop vapour-diffusion method with PEG as precipitant. Data sets were collected to resolutions of 2.70 A (viral peptide pLMP2, RRRWRRLTV; space group P2(1)2(1)2(1)) and 1.83 A (self-peptide pVIPR, RRKWRRWHL; space group P2(1)). Using HLA-B*2705 complexed with the pGR peptide (RRRWHRWRL) as a search model, unambiguous molecular-replacement solutions were found for both HLA-B*2706 complexes. FAU - Zawacka, Anna AU - Zawacka A AD - Institut fur Immungenetik, Charite-Universitatsmedizin Berlin, Campus Virchow-Klinikum, Humboldt-Universitat zu Berlin, Spandauer Damm 130, 14050 Berlin, Germany. FAU - Loll, Bernhard AU - Loll B FAU - Biesiadka, Jacek AU - Biesiadka J FAU - Saenger, Wolfram AU - Saenger W FAU - Uchanska-Ziegler, Barbara AU - Uchanska-Ziegler B FAU - Ziegler, Andreas AU - Ziegler A LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20051124 PL - England TA - Acta Crystallogr Sect F Struct Biol Cryst Commun JT - Acta crystallographica. Section F, Structural biology and crystallization communications JID - 101226117 RN - 0 (HLA-B Antigens) RN - 0 (HLA-B*27:06 antigen) RN - 0 (HLA-B27 Antigen) RN - 0 (Peptides) RN - 0 (Viral Proteins) RN - 3WJQ0SDW1A (Polyethylene Glycols) SB - IM MH - Crystallization MH - HLA-B Antigens/*chemistry MH - HLA-B27 Antigen MH - Humans MH - Peptides/chemistry MH - Polyethylene Glycols/chemistry MH - Spondylitis, Ankylosing/metabolism MH - Viral Proteins/chemistry MH - X-Ray Diffraction PMC - PMC1978159 EDAT- 2006/03/03 09:00 MHDA- 2006/06/03 09:00 PMCR- 2007/12/01 CRDT- 2006/03/03 09:00 PHST- 2005/11/01 00:00 [received] PHST- 2005/11/17 00:00 [accepted] PHST- 2006/03/03 09:00 [pubmed] PHST- 2006/06/03 09:00 [medline] PHST- 2006/03/03 09:00 [entrez] PHST- 2007/12/01 00:00 [pmc-release] AID - S1744309105037966 [pii] AID - en5140 [pii] AID - 10.1107/S1744309105037966 [doi] PST - ppublish SO - Acta Crystallogr Sect F Struct Biol Cryst Commun. 2005 Dec 1;61(Pt 12):1097-9. doi: 10.1107/S1744309105037966. Epub 2005 Nov 24.