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Items for "Amino acids"

A comparative study of the anisotropy of lattice strain induced in the crystals of DL-serine by cooling down to 100 K, or by increasing pressure up to 8.6 GPa. A comparison with L-serine

The anisotropy of lattice strain in the crystals of DL-serine (P2₁/n) on cooling down to 100 K and with increasing hydrostatic pressure up to 8.6 GPa was studied by single-crystal X-ray diffraction...

Keywords: DL-serine, Hydrogen bonds, Amino acids, Low temperature, High pressure

02/2006 | Zeitschrift für Kristallographie, Oldenbourg Wissenschaftsverlag

Experimental charge density of an L-phenylalanine formic acid complex with a short hydrogen bond determined at 25 K

The experimental charge density and related atomic and bond topological properties of an L-phenylalanine formic acid complex were derived from a high resolution X-ray data set (sin θ/λ = 1.18 Å^–1/d = 0.42 Å) measured at 25 K...

Keywords: Charge density, Amino acids, Short hydrogen bond, Single crystal structure analysis, X-ray diffraction

09/2006 | Zeitschrift für Kristallographie, Oldenbourg Wissenschaftsverlag

Effect of Sodium Acetate and Magnesium Acetate on the Solution Behavior of Some Amino Acids in Water at 298.15 K: A Compressibility Approach

Apparent molar adiabatic compressibility, K_2,φ,S, of glycine, DL-α-alanine, DL-α-amino-n-butyric acid, L-leucine and L-phenylalanine in water and in (0.5, 1.0, 2.0, 4.0, 5.5 mol kg⁻¹) aqueous sodium acetate and in (0.5, 1.0, 1.5, 2.0 mol kg⁻¹) aqueous magnesium acetate solutions has been determined from sound velocity, u, measurements at 298.15 K...

Keywords: Apparent Molar Adiabatic Compressibility, Hydration Number, Amino acids, Sodium Acetate, Magnesium Acetate

08/2006 | Zeitschrift für Physikalische Chemie, Oldenbourg Wissenschaftsverlag

Characteristics of prolinase against various iminodipeptides in erythrocyte lysates from a normal human and a patient with prolidase deficiency

The effect of various amino acids and MnCl₂ on prolinase activity in erythrocyte lysates from a healthy individual and a patient with prolidase deficiency was investigated...

Keywords: prolinase, erythrocytes, iminodipeptides, Amino acids, prolidase deficiency