Concept

Hydrogenase

Related publications (46)

Synthesis and Reactivity of Iron Acyl Complexes Modeling the Active Site of [Fe]-Hydrogenase

A [FeIIFeII] dithiolate complex containing acyl and carbonyl ligands was synthesized. The diiron complex reacted with phosphine, cyanide, isocyanide, and CO to give monomeric FeII complexes reproducing the first coordination sphere of the active site of [F ...

2010

An Iron Carbonyl Pyridonate Complex Related to the Active Site of the [Fe]-Hydrogenase (Hmd)

Rosario Scopelliti, Xile Hu, Blaise Valentin Obrist, Dafa Chen

A mononuclear iron bis(carbonyl) pyridonate complex (1), which exhibits several common structural features with the active site of the iron−sulfur cluster-free [Fe]- hydrogenase, was synthesized and characterized. Spectroscopic data of 1 suggests a 2+ oxid ...

2009

Maturation of hydrogenases

Melanie Blokesch

Enzymes possessing the capacity to oxidize molecular hydrogen have developed convergently three class of enzymes leading to: [FeFe]-, [NiFe]-, and [FeS]-cluster-free hydrogenases. They differ in the composition and the structure of the active site metal ce ...

2006

Hydrogenases of the dehalorespiring bacterium Desulfitobacterium hafniense strain TCE1

Benoît Zen-Ruffinen

Groundwater contamination by organochloric compounds became a major concern for public health during the last century. Chloroethenes, commonly used since the 1920's as degreasing and cleaning agents and as intermediates in chemical synthesis, accumulated i ...

EPFL2006

Two electron redox couples for hydrogen production

Xile Hu

As part of a collaborative, NSF-supported initiative to help develop the basic chem. needed for producing solar fuels, our group has been studying relatively inexpensive, first row transition metals that mediate electrocatalytic hydrogen evolution at unusu ...

2006

The biosynthetic routes for carbon monoxide and cyanide in the Ni-Fe active site of hydrogenases are different

Melanie Blokesch

The incorporation of carbon into the carbon monoxide and cyanide ligands of [NiFe]-hydrogenases has been investigated by using (13)C labelling in infrared studies of the Allochromatium vinosum enzyme and by (14)C labelling experiments with overproduced Hyp ...

2005

Synthesis and Evaluation of the Bis-Nor-Anachelin Chromophore as Potential Cyanobacterial Ligand

Karl Gademann

The cyanobacterial metabolite anachelin, postulated to serve as a biological ligand to Fe (siderophore), is composed of a fascinating blend of polyketide, peptide, and alkaloid building blocks. In particular, the latter consists of a N,N-dimethyltetrahydro ...

2005

The complex between hydrogenase-maturation proteins HypC and HypD is an intermediate in the supply of cyanide to the active site iron of [NiFe]-hydrogenases

Melanie Blokesch

Carbamoylphosphate has been shown to be the educt for the synthesis of the CN ligands of the NiFe metal centre of hydrogenases from Escherichia coli. In the absence of carbamoylphosphate, cells accumulate a complex of two hydrogenase maturation proteins, n ...

2004

Analysis of the transcarbamoylation-dehydration reaction catalyzed by the hydrogenase maturation proteins HypF and HypE

Melanie Blokesch

The hydrogenase maturation proteins HypF and HypE catalyze the synthesis of the CN ligands of the active site iron of the NiFe-hydrogenases using carbamoylphosphate as a substrate. HypE protein from Escherichia coli was purified from a transformant overexp ...

2004

Transient response method for characterization of active sites in HZSM-5 with low content of iron during N2O decomposition

Albert Renken, Lioubov Kiwi

The surface active Fe-sites in HZSM-5 with low content of iron (

2004

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