Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Alvin I. Krasna"'
Autor:
Alvin I. Krasna, Alpana Chaudhuri
Publikováno v:
Journal of General Microbiology. 136:1153-1160
Summary: DNA fragments from Proteus vulgaris and Chromatium vinosum were isolated which restored hydrogenase activities in both hydA and hydB mutant strains of Escherichia coli. The hydA and hydB genes, which map near minute 59 of the genome map, 17
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c948218415ee82211d03cae10757eb9
https://doi.org/10.1099/00221287-136-6-1153
https://doi.org/10.1099/00221287-136-6-1153
Autor:
Alvin I. Krasna, Peter H. Gitlitz
Publikováno v:
Biochemistry. 14:2561-2568
The enzyme hydrogenase, from the photosynthetic bacterium Chromatium, was purified to homogeneity after solubilization of the particulate enzyme with deoxycholate. The purification procedure included ammonium sulfate fractionation, treatment with man
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f059a076ac487f31149894a9fa6b22b
https://doi.org/10.1021/bi00683a001
https://doi.org/10.1021/bi00683a001
Autor:
Alvin I. Krasna
Publikováno v:
Photochemistry and Photobiology. 29:267-276
— Methyl viologen was reduced by EDTA and other organic compounds when aqueous solutions of these compounds were irradiated near 440 nm in the presence of catalytic quantities of proflavin. The photoreduced methyl viologen was readily oxidized in t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e92f6ff141d7c204296a22ed6c038748
https://doi.org/10.1111/j.1751-1097.1979.tb07048.x
https://doi.org/10.1111/j.1751-1097.1979.tb07048.x
Publikováno v:
Biotechnology and Bioengineering. 25:1897-1904
Hydrogen photoproduction from water in Scenedesmus cells requires removal of oxygen by a reagent in contact with the algae. Both deoxyhemoglobin and deoxymyoglobin stimulated hydrogen production by reversible absorption of oxygen. Their effectiveness
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e272237d6e7e7b51bef27e85ebe60e2f
https://doi.org/10.1002/bit.260250716
https://doi.org/10.1002/bit.260250716
Autor:
Eric Holwitt, Alvin I. Krasna
Publikováno v:
Archives of Biochemistry and Biophysics. 214:792-805
Gene 5 protein bound to both linear and circular single-stranded DNA and saturated the DNA at a protein-to-DNA weight ratio of 7–8. The viscosity of a complex of the protein with single-stranded DNA was initially less than that of the DNA and slowl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac627a4fd2b8d940a802a6f9f5d2da9a
https://doi.org/10.1016/0003-9861(82)90086-8
https://doi.org/10.1016/0003-9861(82)90086-8
Autor:
Richard S. Magliozzo, Alvin I. Krasna
Publikováno v:
Photochemistry and Photobiology. 38:15-21
— Uncoated powders of TiO2 or SrTiO3 did not produce H2 or O2 on UV irradiation of aqueous suspensions of the powders. TiO2 powders coated with platinum or rhodium photoproduced H2 on irradiation (effective wavelengths 334 and 366 nm) and the react
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::971b207e814bd492b02b1723bf4e5a50
https://doi.org/10.1111/j.1751-1097.1983.tb08360.x
https://doi.org/10.1111/j.1751-1097.1983.tb08360.x
Autor:
Alvin I. Krasna
Publikováno v:
Photochemistry and Photobiology. 31:75-82
— The previously reported (Krasna, 1979) photoproduction of hydrogen from organic compounds in the presence of methyl viologen and platinum, catalyzed by proflavin, has now been accomplished with other photocatalysts. The acridine derivatives acrif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e8a0bf306c112c223b46ce8c1b06501
https://doi.org/10.1111/j.1751-1097.1980.tb03685.x
https://doi.org/10.1111/j.1751-1097.1980.tb03685.x
Autor:
Alvin I. Krasna
Publikováno v:
Enzyme and Microbial Technology. 1:165-172
Hydrogenase is an enzyme which reversibly activates molecular hydrogen and has potential applications in the production of hydrogen by solar energy. This review describes methods employed for assay of the enzyme, the biological role of hydrogenase in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f550f729b71aead5c9b42f2c51133e10
https://doi.org/10.1016/0141-0229(79)90023-1
https://doi.org/10.1016/0141-0229(79)90023-1
Autor:
Alvin I. Krasna, Michael M. Rosen
Publikováno v:
Photochemistry and Photobiology. 31:259-265
— Hydrogen was photoproduced from water in a system containing isolated chloroplasts, hy-drogenase, a coupling electron carrier (ferredoxin or methyl viologen), and an oxygen scavenger. The rate and extent of hydrogen production anaerobically was m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a44b616c74601d4c6d03aef95614ecca
https://doi.org/10.1111/j.1751-1097.1980.tb03715.x
https://doi.org/10.1111/j.1751-1097.1980.tb03715.x
Autor:
Eric Holwitt, Alvin I. Krasna
Publikováno v:
Archives of Biochemistry and Biophysics. 167:161-164
Ethylation of DNA by diethyl sulfate gave 7-ethylguanine as the major product. Dimethyl sulfate was much more reactive than diethyl sulfate in forming 7-alkylguanine. The hydrodynamic properties of DNA did not change as a direct consequence of ethyla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc8d154915d5891bdb97a16115f997ba
https://doi.org/10.1016/0003-9861(75)90452-x
https://doi.org/10.1016/0003-9861(75)90452-x