ferredoxin/atrofia

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Biallelic mutations in the ferredoxin reductase gene cause novel mitochondriopathy with optic atrophy.

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Iron-sulfur (Fe-S) clusters are ubiquitous cofactors essential to various cellular processes, including mitochondrial respiration, DNA repair, and iron homeostasis. A steadily increasing number of disorders are being associated with disrupted biogenesis of Fe-S clusters. Here, we conducted

Biallelic mutations in the ferredoxin reductase gene cause novel mitochondriopathy with optic atrophy.

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The PsaC subunit of photosystem I provides an essential lysine residue for fast electron transfer to ferredoxin.

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PsaC is the stromal subunit of photosystem I (PSI) which binds the two terminal electron acceptors FA and FB. This subunit resembles 2[4Fe-4S] bacterial ferredoxins but contains two additional sequences: an internal loop and a C-terminal extension. To gain new insights into the function of the

Cloning and nucleotide sequence determination of the Clostridium pasteurianum ferredoxin gene.

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We have constructed a library of Clostridium pasteurianum DNA cloned in the plasmid pBR322. Based on the known amino acid sequence for C. pasteurianum ferredoxin, a 64-fold degenerate heptadecanucleotide pool was synthesized. This mixed probe hybridized to two clones which were shown to contain

Electron transfer may occur in the chlorosome envelope: the CsmI and CsmJ proteins of chlorosomes are 2Fe-2S ferredoxins.

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Chlorosomes of the green sulfur bacterium Chlorobium tepidum have previously been shown to contain at least 10 polypeptides [Chung, S., Frank, G., Zuber, H., and Bryant, D. A. (1994) Photosynth. Res. 41, 261-275]. Based upon the N-terminal amino acid sequences determined for two of these proteins,

Genome mining in Amycolatopsis balhimycina for ferredoxins capable of supporting cytochrome P450 enzymes involved in glycopeptide antibiotic biosynthesis.

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Ferredoxins are required to supply electrons to the cytochrome P450 enzymes involved in cross-linking reactions during the biosynthesis of the glycopeptide antibiotics balhimycin and vancomycin. However, the biosynthetic gene clusters for these antibiotics contain no ferredoxin- or ferredoxin

cDNA cloning, expression levels and gene mapping of photosynthetic and non-photosynthetic ferredoxin genes in sunflower (Helianthus annuus L.).

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Fatty acid desaturation in plastids and chloroplasts depends on the electron-donor activity of ferredoxins. Using degenerate oligonucleotides designed from known photosynthetic and heterotrophic plant ferredoxin sequences, two full-length ferredoxin cDNAs were cloned from sunflower (Helianthus

Identification and Characterization of Genes Required for 5-Hydroxyuridine Synthesis in Bacillus subtilis and Escherichia coli tRNA.

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In bacteria, tRNAs that decode 4-fold degenerate family codons and have uridine at position 34 of the anticodon are typically modified with either 5-methoxyuridine (mo⁵U) or 5-methoxycarbonylmethoxyuridine (mcmo⁵U). These modifications are critical for extended recognition of

Characterisation and purification of pyruvate:ferredoxin oxidoreductase from Giardia duodenalis.

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The major 2-oxoacid oxidoreductase (2-OR), pyruvate:ferredoxin oxidoreductase (PFOR) from Giardia duodenalis has been purified to apparent homogeneity. A second 2-OR with a preference for alpha-ketobutyrate as substrate was identified and was removed from PFOR containing fractions during

Molecular study and partial characterization of iron-only hydrogenase in Desulfovibrio fructosovorans.

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An iron-only hydrogenase was partially purified and characterized from Desulfovibrio fructosovorans wild-type strain. The enzyme exhibits a molecular mass of 56 kDa and is composed of two distinct subunits HydA and HydB (46 and 13 kDa, respectively). The N-terminal amino acid sequences of the two

Plasmid-borne genes code for an angular dioxygenase involved in dibenzofuran degradation by Terrabacter sp. strain YK3.

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The genes responsible for angular dioxygenation of dibenzofuran in actinomycetes were cloned by using a degenerate set of PCR primers designed by using conserved sequences of the dioxygenase alpha subunit genes. One sequence of alpha subunit genes was commonly amplified from four

Cloning and functional analysis of the genes coding for 4-aminobenzenesulfonate 3,4-dioxygenase from Hydrogenophaga sp. PBC.

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The gene coding for the oxygenase component, sadA, of 4-aminobenzenesulfonate (4-ABS) 3,4-dioxygenase in Hydrogenophaga sp. PBC was previously identified via transposon mutagenesis. Expression of wild-type sadA in trans restored the ability of the sadA mutant to grow on 4-ABS. The inclusion of sadB

[Cloning and application of a novel hydroxylase in lovastatin conversion].

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Wuxistatin, a novel and potent statin, is converted from lovastatin by Amycolatopsis sp. CGMCC1149. In the bioconversion, lovastatin is firstly hydroxylated by a hydroxylase. To obtain the critical hydroxylase, a novel hydroxylase gene was isolated from Amycolatopsis sp. CGMCC1149 by Degenerate PCR

Characterization and genetic analyses of a carbazole-degrading gram-positive marine isolate, Janibacter sp. strain OC11.

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Strain OC11 was isolated from seawater sampled at the coast of Chiba, Japan, in artificial seawater medium with carbazole (CAR) as the sole carbon source. Its 16S ribosomal RNA gene sequence suggested that strain OC11 belongs to the genus Janibacter. The CAR-degradation genes (car genes) of strain

Structurally and functionally conserved regions of cytochrome P-450 reductase as targets for DNA amplification by the polymerase chain reaction. Cloning and nucleotide sequence of the Schizosaccharomyces pombe cDNA.

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1. Alignments of the available cytochrome P-450 reductase amino acid sequences, and comparison with the crystal structure of ferredoxin-NADP reductase, indicate that two highly conserved regions are of functional importance. 2. Degenerate oligonucleotide primers, based on these sequences, were used

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