Hydrogenases are a class of enzymes that catalyze the reversible activation of the simplest
of molecules, molecular H 2, according to Eqn. 1 (hydrogen: acceptor oxidoreductase, EC …

Since their introduction in 1967, poly (pyrazolyl)-borates1 have found wide application in
coordination chemistry, and their complexes with most metals or metalloids of the periodic …

Extensive use has been made of X-ray absorption fine structure (XAFS) spectroscopy for
investigating the local structural environment of metal ions in metalloproteins. Although it is …

The enzyme ribonucleotide reductase furnishes precursors for the DNA synthesis of all living
cells. One of its constituents, the free radical protein, has an unusual α-helical structure …

In recent years, evidence has accumulated that proteins containing oxo-bridged dinuclear
iron centers are widespread in biology. The crystal structureof hem-erythrin, an 02-transport …

A quantitative magnetostructural relationship has been found for dinuclear iron (III) centers
bridged by a ligand oxygen atom (oxo, hydroxo, alkoxo, etc.) and at least one other bridging …

The dinuclear iron center of the hydroxylase component (protein A) of methane
monooxygenase isolated fromM. capsulatus (Bath) has been studied by EXAFS, Móssbauer …

Conclusions It is very likely that interpenetration of independent 3D frameworks of the sort
observed for the archetypalZn (CN) 2, and possibly of other types that can beenvisaged, will …

The assembly of the essential diferric cluster/tyrosyl radical cofactor of the R2 subunit of
Escherichia coli ribonucleotide reductase from apoR2 with Fe2+ and O2 or diferrous R2 with …

Microwave spectrum of uracil Page 1 J. Am. Chem. Soc. 1988, 110, 2329-2330 2329 Initial
insertion of the (aryl)palladium intermediate with the terminal vinyl group, which leads …