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001-es BibID:BIBFORM006028
Első szerző:Damjanovich Sándor (biofizikus)
Cím:Dynamic physical interactions of plasma membrane molecules generate cell surface patterns and regulate cell activation processes / Damjanovich S., Mátyus L., Balázs, M., Gáspár R., Krasznai Z., Pieri C., Szöllösi J., Trón L.
Dátum:1992
Megjegyzések:Molecular interaction and transmembrane signal transducing events generate a very dynamic and ever changing "pattern" in the plasma membranes. Lymphocytes, the key functional elements of the immune system, are eminently suited to be the primary targets to investigate these proximity, mobility, or other physical-chemical changes in their plasma membranes. Recently, a number of experiments suggested that processed peptides from antigens can bind specific components of MHC molecules (Elliott et al., 1991). This is certainly a way to alter their structure. Cell surface patterns of topological nature, assembly and disassembly of oligomeric receptor structure like the IL-2 receptor have been investigated by sophisticated biophysical techniques. The dynamic changes in the two-dimensional cell surface pattern and intramolecular conformational changes within this "larger" macro-pattern may have a strong regulatory role in signal transducing and intercellular recognition processes. Recent data on these problems are presented together with brief and critical discussions.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Animal
Cell Membrane
Human
Hungary
immunology
Lymphocyte Transformation
Lymphocytes
Membrane Proteins
Peptides
Signal Transduction
Megjelenés:Immunobiology. - 185 : 2-4 (1992), p. 337-349. -
További szerzők:Mátyus László (1956-) (biofizikus) Balázs Margit (1952-) (sejtbiológus, molekuláris genetikus) Gáspár Rezső (1944-) (biofizikus) Krasznai Zoltán (1950-) (biofizikus) Pieri, Carlo Szöllősi János (1953-) (biofizikus) Trón Lajos (1941-) (biofizikus)
Internet cím:Intézményi repozitóriumban (DEA) tárolt változa
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2.

001-es BibID:BIBFORM004645
035-os BibID:(scopus)0033552675 (wos)000084290400003
Első szerző:Damjanovich Sándor (biofizikus)
Cím:Two-dimensional receptor patterns in the plasma membrane of cells : a critical evaluation of their identification, origin and information content / Damjanovich, S., Bene, L., Matko, J., Matyus, L., Krasznai, Z., Szabo, G., Pieri, C., Gaspar, R., Szollosi, J.
Dátum:1999
Megjegyzések:A concise review is presented on the nature, possible origin and functional significance of cell surface receptor patterns in the plasma membrane of lymphoid cells. A special emphasize has been laid on the available methodological approaches, their individual virtues and sources of errors. Fluorescence energy transfer is one of the oldest available means for studying non-randomized co-distribution patterns of cell surface receptors. A detailed and critical description is given on the generation of two-dimensional cell surface receptor patterns based on pair-wise energy transfer measurements. A second hierarchical-level of receptor clusters have been described by electron and scanning force microscopies after immuno-gold-labeling of distinct receptor kinds. The origin of these receptor islands at a nanometer scale and island groups at a higher hierarchical (mum) level, has been explained mostly by detergent insoluble glycolipid-enriched complexes known as rafts, or detergent insoluble glycolipids (DIGs). These rafts are the most-likely organizational forces behind at least some kind of receptor clustering [K. Simons et al., Nature 387 (1997) 569]. These models, which have great significance in trans-membrane signaling and intra-membrane and intracellular trafficking, are accentuating the necessity to revisit the Singer-Nicolson fluid mosaic membrane model and substitute the free protein diffusion with a restricted diffusion concept.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Biophysics
Cells
Diffusion
Energy Transfer
Fluorescence
Hungary
Microscopy
Megjelenés:Biophysical Chemistry. - 82 : 2-3 (1999), p. 99-108. -
További szerzők:Bene László (1963-) (biofizikus) Matkó János (1952-) (biológus) Mátyus László (1956-) (biofizikus) Krasznai Zoltán (1950-) (biofizikus) Szabó Gábor (1953-) (biofizikus) Pieri, Carlo Gáspár Rezső (1944-) (biofizikus) Szöllősi János (1953-) (biofizikus)
Internet cím:DOI
elektronikus változat
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