Now showing items 101-108 of 108
Synthesis of a disulfide cross-linked DNA triple helix
(Elsevier, 1994-06-27)
An intramolecular DNA triple helix incorporating a disulfide cross-link has been synthesized. Potassium permanganate footprinting and UV melting analysis demonstrate that the cross-link increases the conformational stability ...
Pharmacophore elements of the TIPP class of delta opioid receptor antagonists
(Kluwer Academic Publishers; ESCOM Science Publishers B.V. ; Springer Science+Business Media, 1994-10)
A series of tri-and tetrapeptides sharing the amino-terminal dipeptide unit Tyr-Tic, found in the high-affinity delta opioid receptor antagonist Tyr-Tic-Phe-Phe (TIPP), was prepared and evaluated in receptor binding assays ...
Fine SiC inclusions and grain boundary phases in pressureless sintered SiAlON
(Elsevier, 1994)
The starting powder, synthesized by carbothermal reduction, was pressureless sintered at temperatures over 1670[deg]C to produce a dense SiAlON (Si6-zAlz. OzN8-z) of z = 0[middle dot]5. The dense material was characterized ...
The Effect of Additives on Glycine Crystal Growth Kinetics
(Elsevier, 1994-11)
The effect of [alpha]-amino acids ("tailor-made" additives) on the morphology and nucleation of glycine crystals was studied in batch experiments, and the effect of L-leucine on glycine crystal growth kinetics was investigated ...
Specific steroid response from a nonspecific DNA element
(Elsevier, 1994-06)
A fundamental dilemma of steroid hormone regulation is how specific transcription is attained in vivo when several receptors recognize the same DNA sequence in vitro. We have identified an enhancer of the mouse sex-limited ...