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of 10
pro vyhledávání: '"35"'
Autor:
Mohammad R. Seyedsayamdost, Tomislav Argirević, JoAnne Stubbe, Ellen Catherine Minnihan, Marina Bennati
Publikováno v:
Journal of the American Chemical Society
E. coli ribonucleotide reductase (RNR) catalyzes the conversion of nucleotides to deoxynucleotides, a process that requires long-range radical transfer over 35 A from a tyrosyl radical (Y(122)*) within the beta2 subunit to a cysteine residue (C(439))
Publikováno v:
Journal of the American Chemical Society. 135(26)
The first examples of crystallographically characterizable complexes of Tb(2+), Pr(2+), Gd(2+), and Lu(2+) have been isolated, which demonstrate that Ln(2+) ions are accessible in soluble molecules for all of the lanthanides except radioactive promet
Publikováno v:
Journal of the American Chemical Society. 129(51)
It was recently suggested that partially reduced monoamine oxidase (MAO) A contains an equilibrium mixture of an anionic flavin radical and a tyrosyl radical (Rigby, S. E.; et al. J. Biol. Chem. 2005, 280, 4627-4632). These observations formed the ba
Autor:
JoAnne Stubbe, Peter P. Borbat, Marina Bennati, Veronica Mugnaini, Jack H. Freed, John H. Robblee
Publikováno v:
Journal of the American Chemical Society. 127(43)
The class I E. coli ribonucleotide reductase, composed of homodimers of R1 and R2, catalyzes the conversion of nucleoside diphosphates to deoxynucleoside diphosphates. The reduction process involves the tyrosyl radical on R2 that generates a transien
Publikováno v:
Journal of the American Chemical Society. 127(23)
FosA is a manganese metalloglutathione transferase that confers resistance to the broad-spectrum antibiotic fosfomycin, which contains a phosphonate group. The active site of this enzyme consists of a high-spin Mn(2+) ion coordinated by endogenous li
Publikováno v:
Journal of the American Chemical Society. 127(19)
Ethylene is a plant hormone involved in all stages of growth and development, including regulation of germination, responses to environmental stress, and fruit ripening. The final step in ethylene biosynthesis, oxidation of 1-aminocyclopropane-1-carb
Autor:
Mu-Hyun Baik, Xiaofan Yang
Publikováno v:
Journal of the American Chemical Society. 126(41)
High-level DFT calculations indicate that the singlet ground state of the water-oxidizing blue Ru dimer [(bpy)2(OH2)RuIIIORuIII(OH2)(bpy)2]4+ is not due to a strong coupling of the excess electrons from each of the low-spin d5 RuIII centers across th
Autor:
William E. Broderick, Brian M. Hoffman, Joan B. Broderick, Charles J. Walsby, Jennifer Cheek, Danilo Ortillo, Wei Hong
Publikováno v:
Journal of the American Chemical Society. 124(12)
Pyruvate formate-lyase activating enzyme (PFL-AE) is a representative member of an emerging family of enzymes that utilize iron-sulfur clusters and S-adenosylmethionine (AdoMet) to initiate radical catalysis. Although these enzymes have diverse funct
Autor:
Richard N. Armstrong, Christopher L. Rife, Stoyan K. Smoukov, Joshua Telser, Brian M. Hoffman, Bryan A Bernat
Publikováno v:
Journal of the American Chemical Society. 124(10)
FosA is a manganese metalloglutathione transferase that confers resistance to the broad-spectrum antibiotic fosfomycin, (1R,2S)-epoxypropylphosphonic acid. The reaction catalyzed by FosA involves the attack by glutathione on fosfomycin to yield the p
Publikováno v:
Journal of the American Chemical Society. 122:182-183
Methyl-coenzyme M reductase (MCR) catalyzes the chemical step of methane formation by methanogenic organisms. The reaction involves the two-electron reduction of CH{sub 3}S-CoM by N-7-mercaptoheptanoylthreoinine phosphate (CoB-SH). The authors have e