Archives of biochemistry and biophysics, 300(1), 169-177 (1993-01-01)
Porphobilinogen synthase (PBGS) is essential to all life forms; in mammals it is definitively established that Zn(II) is required for activity. The literature regarding the metal requirement for PBGS in other animals, plants, and bacteria neither establishes nor disproves a
RNA:pseudouridine synthetase (Pus1) from Saccharomyces cerevisiae is a multisite specific enzyme that catalyzes the formation of pseudouridine at positions 34 and 36 of intron-containing precursor tRNAIle and at positions 27 and/or 28 of several yeast tRNAs. In this paper we
Journal of the American Chemical Society, 130(33), 11013-11022 (2008-07-26)
Variously substituted coordinating rigid rods have been synthesized which incorporate a central 4,7-phenanthroline nucleus attached to two 2-pyridyl groups via its 3 and 8 positions, so as to yield bis-bidentate chelates, the two-coordinating axes of the chelates being parallel to
Journal of inorganic biochemistry, 102(5-6), 1025-1032 (2008-01-12)
The reaction between [(eta(6)-p-cymene)Ru(H2O)3]X2 and 4,7-phenanthroline (phen) leads to the formation of the rectangular tetranuclear complexes [(eta(6)-p-cymene)4Ru4(mu-4,7-phen-N4,N7)(2)(mu-OH)4]X4 (X=NO3, 1a; SO3CF3, 1b) which have been structurally characterised by X-ray crystallography. 1H NMR spectroscopic studies suggest the presence of a partially dissociated
Dalton transactions (Cambridge, England : 2003), (10)(10), 1563-1566 (2004-07-15)
Reaction of [(dach)Pd(NO3)2] entities (dach = (R,R)-1,2-diaminocyclohexane, (S,S)-1,2-diaminocyclohexane) and 4,7-phenanthroline (phen) providing, respectively, 90 and 120 degrees bond angles, leads to the formation of two novel positively charged homochiral cyclic trinuclear metallacalix[3]arene species [((R,R)-1,2-diaminocyclohexane)Pd(phen)]3(NO3)6 (2a) and [((S,S)-1,2-diaminocyclohexane)Pd(phen)]3(NO3)6 (2b). These species
Notre équipe de scientifiques dispose d'une expérience dans tous les secteurs de la recherche, notamment en sciences de la vie, science des matériaux, synthèse chimique, chromatographie, analyse et dans de nombreux autres domaines..