TY - JOUR AU - Juhász, András AU - Csizmadia, Vilmos AU - Borbély, György AU - Udvardy, János TI - Redox regulation of glucose dehydrogenase from cells of the facultatively heterotrophic cyanobacterium Nostoc sp. strain MAC.1 JF - BIOCHIMICA ET BIOPHYSICA ACTA J2 - BIOCHIM BIOPHYS ACTA VL - 916 PY - 1987 IS - 1 SP - 119 EP - 127 PG - 9 SN - 0006-3002 DO - 10.1016/0167-4838(87)90218-4 UR - https://m2.mtmt.hu/api/publication/1902191 ID - 1902191 N1 - WoS:hiba:A1987K748500016 2019-03-03 10:31 kötet nem egyezik LA - English DB - MTMT ER - TY - JOUR AU - Udvardy, János AU - Juhász, András AU - Faludi-Dániel, Ágnes AU - Farkas, Gábor TI - Hysteretic behaviour of glucose-6-phosphate dehydrogenase of pea chloroplasts. JF - PLANT SCIENCE J2 - PLANT SCI VL - 47 PY - 1986 IS - 2 SP - 91 EP - 94 PG - 4 SN - 0168-9452 DO - 10.1016/0168-9452(86)90054-3 UR - https://m2.mtmt.hu/api/publication/1902625 ID - 1902625 N1 - WoS:hiba:A1986F882600003 2019-03-03 10:41 cím nem egyezik AB - Glucose-6-phosphate dehydrogenase (G6PDH) from pea chloroplasts has at least two interconvertible kinetic states which differ from one another in their catalytic activities (‘hyperactive’ and ‘hypoactive’ forms). Preincubation of chloroplast extracts with 10 mM glucose-6-phosphate (G6P) led to the accumulation of a ‘hyperactive’ G6PDH form which exhibited a burst of activity at the start of the assay; steady state was reached after a period of several minutes. Preincubation of the pea chloroplast extracts in the absence of G6P resulted in the formation of a ‘hypoactive’ enzyme from which exhibited a lag during the assay. Steady state was reached after several minutes. The enzyme activity in the steady state was the same for both forms. The length of the lag (τ) was inversely related to the concentration of G6DH and substrate concentration. These results show that the G6PDH of pea chloroplasts, like the enzyme of cyanobacteria, behaves as a hysteretic enzyme. LA - English DB - MTMT ER - TY - JOUR AU - Juhász, András AU - Csizmadia, Vilmos AU - Borbély, György AU - Udvardy, János AU - Farkas, Gábor TI - The pyridine nucleotide-dependent D-glucose dehydrogenase of Nos toc sp. strain Mac, a cyanobacterium, is subject to thioredoxin modulation. JF - FEBS LETTERS J2 - FEBS LETT VL - 194 PY - 1986 SP - 121 EP - 125 PG - 5 SN - 0014-5793 DO - 10.1016/0014-5793(86)80062-X UR - https://m2.mtmt.hu/api/publication/1902577 ID - 1902577 LA - English DB - MTMT ER - TY - JOUR AU - Udvardy, János AU - Borbély, György AU - Juhász, András AU - Farkas, Gábor TI - Thioredoxins and the redox modulation glucose-6-phosphate dehydrogenase in Anabena sp. strain PCC 7120 vegetative cells and heterocysts. JF - JOURNAL OF BACTERIOLOGY J2 - J BACTERIOL VL - 157 PY - 1984 SP - 681 EP - 683 PG - 3 SN - 0021-9193 UR - https://m2.mtmt.hu/api/publication/1901034 ID - 1901034 LA - English DB - MTMT ER - TY - JOUR AU - Udvardy, János AU - Borbély, György AU - Juhász, András AU - Farkas, Gábor TI - Fe3+-chelates mediate the oxidative modulation of cyanobacterial and chloroplast enzymes. JF - FEBS LETTERS J2 - FEBS LETT VL - 172 PY - 1984 SP - 11 EP - 16 PG - 6 SN - 0014-5793 DO - 10.1016/0014-5793(84)80862-5 UR - https://m2.mtmt.hu/api/publication/1901033 ID - 1901033 LA - English DB - MTMT ER - TY - CHAP AU - Udvardy, János AU - GODEH, MM AU - Cséke, Csaba AU - Farkas, Gábor ED - Gadal, P TI - Redox regulation of fructose-1,6-biphosphatase in the cyanobacterium A. nidulans. T2 - Thioredoxines: Structure et functions PB - Centre National de la Recherche Scientifique (CNRS) CY - Paris SN - 9782222031826 PY - 1983 SP - 199 UR - https://m2.mtmt.hu/api/publication/1907920 ID - 1907920 LA - English DB - MTMT ER - TY - JOUR AU - Udvardy, János AU - Juhász, András AU - Farkas, Gábor TI - Interaction between hysteretic regulation and redox modulation of glucose-6-phosphate dehydrogenase from A. nidulans. JF - FEBS LETTERS J2 - FEBS LETT VL - 152 PY - 1983 SP - 97 EP - 100 PG - 4 SN - 0014-5793 DO - 10.1016/0014-5793(83)80490-6 UR - https://m2.mtmt.hu/api/publication/1899261 ID - 1899261 LA - English DB - MTMT ER - TY - JOUR AU - Udvardy, János AU - GODEH, M AU - Farkas, Gábor TI - Regulatory properties of a fructose 1,6-biphosphatase from the cyanobacterium A. nidulans. JF - JOURNAL OF BACTERIOLOGY J2 - J BACTERIOL VL - 151 PY - 1982 SP - 203 EP - 208 PG - 6 SN - 0021-9193 UR - https://m2.mtmt.hu/api/publication/1899414 ID - 1899414 LA - English DB - MTMT ER - TY - JOUR AU - Udvardy, János AU - BALOGH, A AU - Farkas, Gábor TI - Modulation of glyceraldehyde-3-phosphate dehydrogenease in A. nidulans by glutathione. JF - ARCHIVES OF MICROBIOLOGY J2 - ARCH MICROBIOL VL - 133 PY - 1982 SP - 2 EP - 5 PG - 4 SN - 0302-8933 DO - 10.1007/BF00943760 UR - https://m2.mtmt.hu/api/publication/1899413 ID - 1899413 LA - English DB - MTMT ER - TY - JOUR AU - Sivók, Béla AU - HORVATH, M AU - Udvardy, János TI - Partial characterization of 5/3/-ribonucleotide and 3-ribonucleo tide phosphohydrolases from Tradescantia abiflora leaves. JF - PHYTOCHEMISTRY J2 - PHYTOCHEMISTRY VL - 20 PY - 1981 SP - 1223 EP - 1227 PG - 5 SN - 0031-9422 DO - 10.1016/0031-9422(81)80009-X UR - https://m2.mtmt.hu/api/publication/1899527 ID - 1899527 LA - English DB - MTMT ER -