Now showing items 1-10 of 81
Interaction of [alpha]2-macroglobulin with trypsin, chymotrypsin, plasmin, and papain
(Elsevier, 1983-02-15)
The interaction [alpha]2-macroglobulin with four proteinases has been investigated by binding assays and by gel electrophoresis. At pH 7.65 the binding ratios of the proteinase-[alpha]2-macroglobulin complexes were found ...
Multiple frequency EPR studies on three forms of oxidized cytochrome c oxidase
(Elsevier, 1983-10-17)
Bovine heart mitochondrial cytochrome c oxidase (cytochrome aa3) (EC 1.9.3.1) has been demonstrated to occur in several forms when the redox centers in the protein are thought to be fully oxidized. We report here the results ...
Immunochemical studies on the binding specificity of the blood group Leb specific lectin Griffonia simplicifolia IV
(Elsevier, 1983-05)
The specificity of the Griffonia simplicifolia IV (GS-IV) lectin was studied by quantitative precipitin and quantitative precipitin inhibition assays. The lectin precipitated most strongly with a human H,Leb blood group ...
Anodic oxidation of dihydronicotinamide adenine dinucleotide at solid electrodes; mediation by surface species
(Elsevier, 1983-02-10)
The mechanism and kinetics for the two-electron oxidation of 1.4-dihydronicoeueamide adenine dinucleotide (NADH) to NAD+ at gold, platinum and glassy carbon (GC) rotating case electrodes at various solution pH and NADH ...
Stereochemistry in the cyclization of -azidophenylalkenes to indoles
(Elsevier, 1983)
- and --azidostilbene, -azido-[beta]-methylstilbene, and ()--azido[beta]-deuteriostyrene give indoles on thermolysis by a mechanism involving attack by a nitrene directly on the [beta] carbon atom, and not by insertion.
Structure of a water-insoluble -glucan isolated from a streptococcal organism
(Elsevier, 1983-08-16)
The structure of the extracellular polysaccharide (water-insoluble -glucan) from an anaerobic, Gram-positive coccus organism (Streptococcus) has been investigated. Acid hydrolysis of the methylated glucan yielded 2,3,4,6-tetra-, ...
Fragments of human growth hormone produced by digestion with bromelain : Chemistry and biological properties
(Elsevier, 1983-01-12)
In an effort to produce small discrete fragments of human growth hormone (GH), we examine the action of the proteolytic enzyme, bromelain, on this molecule. Purified human GH incubated for 40 min at 22[deg]C with crude ...
[omega]-Difluoroamino carboxylic acids: Readily accessible fluorine-labeled fatty acid analogs
(Elsevier, 1983-05)
15-Difluoroamino-pentadecanoic acid and 12-difluoroamino-dodecanoic acid were prepared by treating the corresponding lactams with F2 in aqueous acetonitrile. The intermediate N-fluorolactams were also isolated. Whereas ...