Department of Chemistry, University of Naples 'Federico II', Via Cinthia, I-80126 Naples, Italy
Institute of Protein Biochemistry, CNR, Via Pietro Castellino 111, I-80131 Naples, Italy
Institute of Biostructures and Bioimages, CNR, Via Mezzocannone 16, I-80134 Naples, Italy
References: Not available.
Structure and dimerization of the teleost transmembrane immunoglobulin region
The immune system cells express activating receptors, which consist of a dimeric ligand-binding molecule associated with a signal transducing dimer. The communication between the receptor partners depends primarily on the interactions between their membrane-embedded segments. In the B cell receptor (BCR) the sequence traversing the lipid bilayer of the immunoglobulin (IgTM) is highly conserved among species. We have investigated the association of the IgTM regions of the BCR of the Antarctic teleost Chionodraco hamatus. The nucleotide sequence of the entire immunoglobulin chain has been determined and the length, polarity, and structure of the IgTM region have been thoroughly analyzed. Structural models of the IgTM homodimer were also obtained by performing several MD simulations in a lipid bilayer using, as a starting model, two copies of the IgTM helix placed at various relative orientations and distances. Despite a certain degree of conformational heterogeneity, the predicted models of the IgTM homodimer display similar packing interfaces, characterized by a high degree of surface complementarity. The residues presumably responsible for the interaction and, consequently for the receptor stability have been identified in this manner. (C) 2008 Elsevier Inc. All rights reserved.
Structure and dimerization of the teleost transmembrane immunoglobulin region
Kim YH, Shin SW, Pellicano R, Fagoonee S, Choi IJ, Kim YI, Park B, Choi JM, Kim SG, Choi J, Park JY, Oh S, Yang HJ, Lim JH, Im JP, Kim JS, Jung HC, Ponzetto A, Figura N, Malfertheiner P, Choi IJ, Kook MC, Kim YI, Cho SJ, Lee JY, Kim CG, Park B, Nam BH, Bae SE, Choi KD, Choe J, Kim SO, Na HK, Choi JY, Ahn JY, Jung KW, Lee J, Kim DH, Chang HS, Song HJ, Lee GH, Jung HY, Seta T, Takahashi Y, Noguchi Y, Shikata S, Sakai T, Sakai K, Yamashita Y, Nakayama T, Leja M, Park JY, Murillo R, Liepniece-karele I, Isajevs S, Kikuste I, Rudzite D, Krike P, Parshutin S, Polaka I, Kirsners A, Santare D, Folkmanis V, Daugule I, Plummer M, Herrero R, Tsukamoto T, Nakagawa M, Kiriyama Y, Toyoda T, Cao X, Corral JE, Mera R, Dye CW, Morgan DR, Lee YC, Lin JT, Garcia Martin R, Matia Cubillo A, Lee SH, Park JM, Han YM, Ko WJ, Hahm KB, Leontiadis GI, Ford AC, Ichinose M, Sugano K, Jeong M, Park JM, Han YM, Park KY, Lee DH, Yoo JH, Cho JY, Hahm KB, Bang CS, Baik GH, Shin IS, Kim JB, Suk KT, Yoon JH, Kim YS, Kim DJ * Helicobacter pylori Eradication for Prevention of Metachronous Recurrence after Endoscopic Resection of Early Gastric Cancer(748 views) N Engl J Med (ISSN: 0028-4793, 0028-4793linking, 1533-4406electronic), 2015 Jun; 30642104201566393291: 749-756. Impact Factor:59.558 ViewExport to BibTeXExport to EndNote