Now showing items 11-20 of 70
Vibrational analysis of conformation in peptides, polypeptides, and proteins This is paper number 16 in a series of which Ref. 20 is paper 15.
(Wiley Subscription Services, Inc., A Wiley Company, 1983-01)
A vibrational force field for the polypeptide chain has been developed for normal-mode analysis of such molecules. It can reproduce observed frequencies of known structures to within about 5 cm −1 . We review the application ...
Isolation and characterization of a glycopeptide from human senescent erythrocytes
(Elsevier, 1983-08-16)
A glycopeptide (called "senescence-factor glycopeptide", SF-G) has been isolated from a tryptic digest of human erythrocytes by specific adsorption and elution from immobilized peanut lectin. SF-G was detectable in old but ...
A theoretical analysis and control study of open-circuit grinding
(Elsevier, 1983-01)
Regrinding is an essential step in many mineral processing flowsheets as a final preparatory step for mineral separation. It is normally carried out in open-circuit ball mills or rod mills. Wide fluctuations occurring in ...
Iron and manganese superoxide dismutases
(Elsevier, 1983)
Fe and Mn SDs are enigmatic metalloproteins for several reasons: They are found in strict anaerobes as well as aerobes. In some cases the Fe and Mn ions appear to be interchangeable while in others they are not. In some ...
Thermophysics of metal alkanoates II. Heat capacities and thermodynamic properties of sodium propanoate
(Elsevier, 1983-07)
The heat capacity of sodium propanoate has been measured from 9 to 580 K by adiabatic calorimetry and considerable metastability noted between 60 and 215 K. Values at 298.15 K of Cp,m/R, Smo/R, "Hmo-Hmo(0)'/R, and ...
Reconstitution of a cyclic amp-dependet protein kinase from Dictyostellium discoideum
(Elsevier, 1983-07-28)
Dicytostelium discoideum has a cyclic AMP-dependent protein kinase activity which can be assayed after DEAE-ion exchange chromatography. Mixing cAMP binding protein (free of kinase activity) from the DEAE column eluate ...
A novel approach towards the synthesis of the 3,4,5-trihydro-1,3-diazepin-5-ol ring structure
(Elsevier, 1983)
A catalytic reduction of the nitrile portion of the trimethylsilyl cyanohydrin to a primary amine has produced an situ annulation to generate the 3,4,5-trihydro-1,3-diazepin-5-ol ring. This ring substructure has demonstrated ...
Surface enhanced raman spectroscopy of halide ions on colloidal silver: morphology and coverage dependence
(Elsevier, 1983-01-02)
Transmission electron microscopy shows that the colloidal silver used as a substrate for surface enhanced Raman spectroscopy consists of 75-135 A average diameter faceted crystals, which can be made to aggregate in clusters ...