Abstract The high efficiency in excitation energy transfer observed the Fenna-Matthews-Olson light-harvesting complex green sulfur bacteria is due to its arrange of photo-pigments, called bacteriochlorophylls. They are central for photosynthetic process those being controversially associated long-lived coherence. study this protein and dynamics continues, trying understand environmental factors...

BACKGROUND Multiple cellular functions are compromised in amyotrophic lateral sclerosis (ALS). In familial ALS (FALS) with Cu/Zn superoxide dismutase (SOD1) mutations, the mechanisms by which the mutation in SOD1 leads to such a wide range of abnormalities remains elusive. METHODOLOGY/PRINCIPAL FINDINGS To investigate underlying cellular conditions caused by the SOD1 mutation, we explored mut...

This study investigated mechanisms controlling the nuclear-cytoplasmic partitioning of annexin II (AnxII). AnxII and its ligand, p11, were localized by immunofluorescence to the cytoplasmic compartment of U1242MG cells, with minimal AnxII or p11 detected within nuclei. Similarly, GFP-AnxII and GFP-p11 chimeras localized to the endogenous proteins. Likewise, GFP-AnxII(1-22) was excluded from nuc...

Escherichia coli UvrD protein is a 3' to 5' SF1 helicase required for DNA repair as well as DNA replication of certain plasmids. We have shown previously that UvrD can self-associate to form dimers and tetramers in the absence of DNA, but that a UvrD dimer is required to form an active helicase-DNA complex in vitro. Here we have used pre-steady state, chemical quenched flow methods to examine t...

The present study investigated the development of crown and bridge resin using a new PNC-EMA monomer. M MA monomer has long been used for crown and bridge resins, but the polymer prepared with MMA monomer has certain demerits such as low mechanical strength and abrasion resistance. The authors prepared a polymer by mixing 3PNC-EMA monomer having a P=N bond in its skeleton, previously synthesize...

A nicotinamide adenine dinucleotide-specific isocitric dehydrogenase has been isolated and purlfied 450-fold from Blasfocladiella emersonii. The enzyme has a monomeric molecular weight of 110,000 f 10,000. It is capable of aggregating to polymers of molecular weight ranging from 200,000 to 500,000 and higher at acid pH levels. At alkaline pH values, it exists as a monomer. The aggregated enzyme...