Now showing items 81-90 of 426
Amino acid sequence of sheep carbonic anhydrase C
(Elsevier, 1974-12-18)
The sequence of amino acid residues comprising the major form of sheep red cell carbonic anhydrase C has been determined. The primary sequences of peptides derived from cyanogen bromide cleavage and tryptic digestion were ...
Structure analyses combining electron diffraction and microwave data : I. Study of XeOF4
(Elsevier, 1971-06)
Molecular parameters for XeOF4 derived from electron diffraction data are compared with those previously reported in vibrational and rotational spectroscopic studies of the molecule. Additional least-squares calculations ...
Studies in molecular structure, symmetry and conformation I
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Company Limited ; Springer Science+Business Media, 1971-04)
Crystals of 1-aminocyclooctanecarboxylic acid hydrobromide are orthorhombic, with a = 26·026, b =7·087, c = 6·149, Z = 4 and space group P 2 1 2 1 2 1 .The structure was solved in projections by direct methods and later ...
Age-associated structural alterations in senescent mouse brain DNA
(Elsevier, 1977-01-20)
The maintenance of structural integrity in the DNA of aging mice has been examined with the aim in view of determining whether changes in genome structure constitute the molecular basis of aging. Cell lysate DNA from brains ...
Thermodynamics of Fe(II)Fe(III) oxide systems I. Hydrothermal Fe3O4
(Elsevier, 1976-06)
The heat capacity of a hydrothermally-prepared polycrystalline sample of Fe3O4 was measured from 53 to 350 K, primarily to study the thermophysics of the Verwey transitions. Although the bifurcation of the transition was ...
Complexity in valinomycin effects on amino acid transport
(Elsevier, 1974-02-26)
3H-labeled dibenzyldimethylammonium ion, applied as an indicator for the potential differences across the plasma membrane, enters the Ehrlich ascites-tumor cell during 2 h to an apparent steady-state concentration about ...
The synthesis and characterization of some new difluorophosphine derivatives
(Elsevier, 1976)
The heretofore unknown chelating fluorophosphine ligands, F2PCH2PF2 and F2PCH2CH=CH2 have been prepared and characterized. The reagent F2PCH2I has been prepared and used in the synthesis of F2PCH2PF2. NMR data are given.
Thermodynamics of the monohydrogen difluorides IV. The low-temperature heat capacity of NH4HF2
(Elsevier, 1976-01)
Adiabatic calorimetric results on NH4HF2 show its heat capacity to be of a simple sigmate shape from 5 to 300 K. Values of Cp(T), So(T) - So(0), {Ho(T) - Ho(0)}/T, and -{Go(T) - Ho(0)}/T at 298.15 K are 25.50, 27.61, 14.23, ...
Biosynthesis, in vitro, of "histidine-protein" -- A biochemical marker in epidermal differentiation
(Elsevier, 1971-04-29)
Unusual protein containing a high level of histidine and eight other amino acids (i.e. glycine, alanine, serine, threonine, arginine, glutamic acid, aspartic acid and tyrosine) is localized in the epidermal granular cell ...