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Use of rapid kinetics methods to study the assembly of the diferric-tyrosyl radical cofactor of E. coli ribonucleotide reductase.
- J. M. Bollinger, W. H. Tong, N. Ravi, B. Huynh, D. Edmondson, J. Stubbe
- Chemistry, Medicine
- Methods in enzymology
The SF-Abs, RFQ-EPR, and RFQ-Möss data on the R2 reconstitution reaction are all consistent with the mechanism of Scheme I, in which the intermediate X is the immediate precursor to the product… Expand
A Mössbauer study of the interaction of chitosan and D-glucosamine with iron and its relevance to other metalloenzymes.
The interaction of iron with water-soluble polymer chitosan and monomer d-glucosamine is investigated by Mössbauer spectroscopy. The 4.2 K Mössbauer spectrum of Fe-water-soluble chitosan complex… Expand
DEPOSITION OF DIAMOND-LIKE CARBON FILMS ON ALUMINIUM SUBSTRATES BY RF-PECVD TECHNIQUE: INFLUENCE OF PROCESS PARAMETERS
The properties of diamond-like carbon (DLC) films are influenced by both the process parameters and the properties of the substrate on which they are deposited. Deposition of DLC films on aluminium… Expand
Purification and characterization of desulfoferrodoxin. A novel protein from Desulfovibrio desulfuricans (ATCC 27774) and from Desulfovibrio vulgaris (strain Hildenborough) that contains a distorted…
- I. Moura, P. Tavares, +4 authors J. Legall
- Medicine, Chemistry
- The Journal of biological chemistry
- 15 December 1990
A new type of non-heme iron protein was purified to homogeneity from extracts of Desulfovibrio desulfuricans (ATCC 27774) and Desulfovibrio vulgaris (strain Hildenborough). This protein is a monomer… Expand
Mechanism of Assembly of the Tyrosyl Radical-Diiron(III) Cofactor of E. Coli Ribonucleotide Reductase: 1. Moessbauer Characterization of the Diferric Radical Precursor
Reaction of NO with the reduced R2 protein of ribonucleotide reductase from Escherichia coli.
The active R2 protein of ribonucleotide reductase from Escherichia coli contains a catalytically essential tyrosine radical at position 122 (Tyr122.) that is formed during the reaction of dioxygen… Expand
A magnetic study of an Fe-chitosan complex and its relevance to other biomolecules.
Structural and magnetic properties of an Fe-chitosan complex is investigated by Mössbauer spectroscopy. From the isomer shift deduced from the Mössbauer spectra measured at various temperatures, it… Expand
Spectroscopic characterization of 57Fe-reconstituted rubrerythrin, a non-heme iron protein with structural analogies to ribonucleotide reductase.
Rubrerythrin, a contraction of rubredoxin and hemerythrin, is the trivial name given to a non-heme iron protein isolated from Desulfovibrio vulgaris (Hildenborough). This protein, whose physiological… Expand
Rice yield estimation using spectral and meteorological parameters
With an aim to develop yield models in terms of spectral aod meteorological parameters for rice crop, field experiments are conducted in the wet seasons of 1984 and 1985 at the Mala Rice Research… Expand