Zobrazeno 1 - 10
of 33
pro vyhledávání: '"35"'
Publikováno v:
Journal of the American Chemical Society. 141:10821-10829
High fidelity human mitochondrial DNA polymerase (Pol γ) contains two active sites, a DNA polymerization site (pol) and a 3′−5′ exonuclease site (exo) for proofreading. Although separated by 35 Å, coordination between the pol and exo sites is
Publikováno v:
Journal of the American Chemical Society. 140:15744-15752
Class Ia ribonucleotide reductase (RNR) of Escherichia coli contains an unusually stable tyrosyl radical cofactor in the β2 subunit (Y122•) necessary for nucleotide reductase activity. Upon binding the cognate α2 subunit, loaded with nucleoside d
Autor:
Frank M. Raushel, Leisha S. Mullins
Publikováno v:
Journal of the American Chemical Society. 121:3803-3804
Ammonia can replace glutamine as the ultimate source for the nitrogen requirement in the reaction presented above.3 A chemical mechanism for the enzymatic transformation is presented below in Scheme 1. The first ATP phosphorylates bicarbonate to form
Publikováno v:
Journal of the American Chemical Society. 139:16657-16665
Ribonucleotide reductases (RNR) catalyze the reduction of nucleotides to deoxynucleotides through a mechanism involving an essential cysteine based thiyl radical. In the E. coli class 1a RNR the thiyl radical (C439•) is a transient species generate
Publikováno v:
Journal of the American Chemical Society. 137:12343-12351
Four new chlorobromohydrins, mollenynes B-E, were isolated from the marine sponge Spirastrella mollis collected from Hogsty Reef, Bahamas. Their structures were elucidated by integrated analysis of NMR, MS, and computational methods. A high-resolutio
Autor:
John F. Quinn, Michael R. Whittaker, Phillip J. Hogg, Paul Wilson, Thomas P. Davis, Kristian Kempe, Sarah Mann, Athina Anastasaki, Angus P. R. Johnston, David M. Haddleton, Matthew R. Owen
Publikováno v:
Journal of the American Chemical Society. 137:4215-4222
The entropy-driven affinity of trivalent (in)organic arsenicals for closely spaced dithiols has been exploited to develop a novel route to peptide/protein-polymer conjugation. A trivalent arsenous acid (As(III)) derivative (1) obtained from p-arsanil
Autor:
Alexey Silakov, Denise A. Conner, Wei Jiang, Mohammad R. Seyedsayamdost, Bigna Wörsdörfer, Kenichi Yokoyama, J. Martin Bollinger, JoAnne Stubbe, Carsten Krebs, Jovan Livada
Publikováno v:
Journal of the American Chemical Society. 135:8585-8593
The class Ia ribonucleotide reductase (RNR) from Escherichia coli (Ec) employs a free-radical mechanism, which involves bidirectional translocation of a radical equivalent or “hole” over a distance of ∼35 Å from the stable diferric/tyrosyl-rad
Autor:
Michal Avital-Shmilovici, Kalyaneswar Mandal, Nelson B. Phillips, Michael A. Weiss, Zachary P. Gates, Stephen B. H. Kent
Publikováno v:
Journal of the American Chemical Society. 135:3173-3185
Efficient total synthesis of insulin is important to enable the application of medicinal chemistry to the optimization of the properties of this important protein molecule. Recently we described "ester insulin"--a novel form of insulin in which the f
Publikováno v:
Journal of the American Chemical Society. 138(22)
Circular bacteriocins, ranging from 35 to 70 amino acids, are the largest cyclic peptides produced by lactic acid bacteria to suppress growth of other bacteria. Their end-to-end cyclized backbone that enhances molecular stability is an advantage to s
Publikováno v:
Journal of the American Chemical Society. 134:2520-2523
The reaction of a class I ribonucleotide reductase (RNR) begins when a cofactor in the β subunit oxidizes a cysteine residue ~35 Å away in the α subunit, generating a thiyl radical. In the class Ic enzyme from Chlamydia trachomatis (Ct), the cyste