mass tolerance of * 1 u of the precursor ion molecular weight. A cross-correlation function is then used to provide a measurement of similarity between the mass-to-charge ratios for the fragment ions predicted from amino acid sequences obtained from the database and the fragment ions observed

containing CO2, Mg2 + and additional ribulose-1,5-bisphosphate carboxylase/ oxygenase (Rubisco; EC 4.1.1.39). Protein in the extracts was separated from substances of low molecular weight by gel filtration and coagulated by heating to 100°C. Coagulated protein was removed by centrifugation and cations

Introduction. Immiscible polymer blends are com-monly compatibilized by block or graft copolymers, which are either premade or formed “in situ”.1 The reactive blending process is by far more economically viable but also strongly dependent on the relative

hen altering the recycling 01 waste treatment process within ing system, savvy man1 facturers will benefit from.oming their own “experts ” n recycling technology. Peynolds aning industry, much of the data ion about products and services r.ed by vendors and individuals.endors. This is not to say

chromatography-mass spectrometer and an ion trap mass spectrometer are used concurrently to identify and to quantify SOA components with molecular weights up to 1600 Da. Diacids, carbonyl-containing acids, diacid alkyl esters, and hydroxy diacids are the four major classes of low-molecular-weight (MW < 250 Da

but differ from the precursors predicted by the published MN proviral DNA sequence by 10 residues. Electrospray ionization mass spectrometry analysis of the purified p24 forms showed that the measured molecular weight of the protein was 200 ± 50 atomic mass units greater than the calculated molecular weight

Adsorption of low-molecular-weight sodium polyacrylate from aqueous solution onto synthetic hydroxyapatite was studied at room temperature so that the mechanism of adhesion of polyacrylate cements to tooth mineral could be elucidated. The adsorption isotherm of sodium polyacrylate was Langmuirian

's intraerythrocytic growth cycle (3). The major processing product detected after merozoite differentiation was an 83,000 mol wt fragment, and it was suggested that this fragment of the •95,000 tool wt precursor may be expressed on the merozoite surface. More recently, we have demonstrated a serological cross

sulfatase (GALNS, EC 3.1.6.4) and serine carboxypepidase cathepsin A (EC 3.4.16.1) form a functional high molecular weight complex in the lysosomes. The major constituent of this complex is cathepsin A, the so-called “lysosomal protective protein ” (PPCA). By forming a multienzyme complex

ABSTRACT: A series of 1,4-polybutadienes of varying molecular weight, both monodisperse and having broad or bidisperse molecular weight distributions, were studied using dielectric relaxation. The glass transition temperature,Tg, and theTg-normalized temperature dependence of the segmental