2-Cys peroxiredoxins (2-CPs) function in the removal of hydrogen peroxide and lipid peroxides but their precise roles in the induction of autophagy have not been characterized. Here we show that heat stress, which is known to induce oxidative stress, leads to the simultaneous accumulation of transcripts encoding 2-CPs and autophagy proteins, as well as autophagosomes, in tomato (Solanum lycoper...

The X-ray crystal structure of the nitrogenase MoFe protein from Clostridium pasteurianum (Cp1) has been determined at 1.08 Å resolution by multiwavelength anomalous diffraction phasing. Cp1 and the ortholog from Azotobacter vinelandii (Av1) represent two distinct families of nitrogenases, differing primarily by a long insertion in the α-subunit and a deletion in the β-subunit of Cp1 relative t...

Hematopoietic stem cell transplantation (SCT) is the only proven cure for chronic myeloid leukemia (CML), a rare disease in childhood. We report outcomes of 314 children with Philadelphia-chromosome– positive (Ph ) CML undergoing SCT from HLA-matched siblings (n 182) or volunteer-unrelated donors (VUD; n 132). Three-year overall survival (OS) and leukemia-free survival (LFS) rates were 66% and ...

In this study, the quantitative amounts of chlorogenic acid (CA) in spray dried artichoke (Cynara scolymus L.) leaf extract (SD) and standardized artichoke commercial products (CP1, CP2) were calculated by using HPLC. The amounts of CA were 4.66±2.96x10 mg/capsule and 27.9±9.98x10 mg/capsule for CP1 and CP2 respectively. The in vitro phytoequivalance of SD, CP1 and CP2 were evaluated by using t...

The amino acid discrimination by aminoacyl-tRNA synthetase is achieved through two sifting steps; amino acids larger than the cognate substrate are rejected by a "coarse sieve", while the reaction products of amino acids smaller than the cognate substrate will go through a "fine sieve" and be hydrolyzed. This "double-sieve" mechanism has been proposed for IleRS, a class I aminoacyl-tRNA synthet...

A photosystem I (PS-I) preparation from barley (Hordeum vulgare L.) containing the reaction center protein P700-chlorophyll a-protein 1 (CP1) and smaller polypeptides with apparent molecular masses of 18, 16, 14, 9.5, 9, 4, and 1.5 kDa has been analyzed with respect to subunit stoichiometry. CP1 contains two homologous subunits with approximate masses of 82 kDa. CP1 and the smaller polypeptides...

Different Interfacial Behaviors of Peptides Chemically Immobilized on Surfaces with Different Linker Lengths and via Different Termini Report Title Molecular structures such as conformation and orientation are crucial in determining the activity of peptides immobilized to solid supports. In this study, sum frequency generation (SFG) vibrational spectroscopy was applied to investigate such struc...

OBJECTIVE The purpose of this study was to estimate the outcomes and costs of day hospital and nonmedical community-based day treatment for chemical dependency. METHOD A community sample of 271 adults (179 men) dependent on alcohol and/or drugs was recruited and randomized to either a hospital-based (medical) day treatment program or to a community-based (nonmedical) day treatment program. Th...

Bulk properties of open cell polyurethane foam are studied in a hydrostatic compression experiment under strain control. A linear region of behaviour is observed in the stress-strain curve, followed by a non-monotonic region corresponding to a negative incremental bulk modulus. The bulk modulus in the linear region is in reasonable agreement with the value calculated from compressional Young’s ...