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Electrochemical measurements show that there are high-potential states of two copper proteins, Pseudomonas aeruginosa azurin and Thermus thermophilus CuA domain; these perturbed states are formed in guanidine hydrochloride (GuHCl) solution in which the proteins are still blue (azurin) and purple
Previous studies of N,N'-dicyclohexylcarbodiimide (DCCD)-modified bacteriorhodopsin (Renthal, R. et al. (1985) Biochemistry 24, 4275-4279) used reaction conditions (detergent micelles) that are not optimal for subsequent physical studies. The present work describes new conditions for reaction of
Bacteriorhodopsin, a light-driven proton pump found in the purple membrane of Halobacterium salinarum, exhibits purple at neutral pH but its color is sensitive to pH. Here, structures are reported for an acid blue form and an alkaline purple form of wild-type bacteriorhodopsin. When the P622 crystal
Reddish-purple areas occasionally found on the surface of the liver have been related to peliosis hepatis. The purpose of the present study was to determine: 1) the frequency of these changes in a total of 3035 laparoscopies and 2) the histological substrate of these laparoscopical changes. In 20
The objective of the study was to investigate the mechanisms of action of Purple Coneflower (Echinacea purpurea (L.) Moench) preparations on the immune system and to define which part of the plant is the most effective as an immunostimulator.
METHODS
The extracts from overground parts and roots of
OBJECTIVE
To describe a different type of self-injurious behavior that may be secondary to body dysmorphic disorder (BDD).
METHODS
Single case report.
RESULTS
We reported a case of an individual who have developed the self-destructive habit of pulling and severely scraping hairs and debris out of
This work reports the preparation, characterization and application as both electrochromic materials and electrochemical sensors of novel materials: carbon nanotubes/ruthenium purple nanocomposites. Using an innovative route based on a heterogeneous electrochemical reaction involving iron oxide
The manipulation of B800 bacteriochlorophyll (BChl) a in light-harvesting complex 2 (LH2) from the purple photosynthetic bacterium Phaeospirillum molischianum (molischianum-LH2) provides insight for understanding the energy transfer mechanism and the binding of cyclic
We present the detailed characterization on the reconstitution of two cyclic tetrapyrrole pigments that have the same substituents but differ in the degree of hydrogenation in the macrocycles from bacteriochlorophyll (BChl) a (7,8,17,18-tetrahydroporphyrin) into the binding sites of B800 BChl a in
Field trials to determine the effect of carrot pigmentation and weather parameters on cavity spot (CS) of carrot were conducted in the Holland/ Bradford Marsh region of Ontario between 2002 and 2009. In all, 23 colored carrot cultivars from the United States Department of Agriculture (USDA)
The authors describe a case of a 14-year-old male child presenting with massive anterior epistaxis on a background of recurrent episodes of epistaxis. Immediate management constituted anterior nasal packing. Endoscopic nasal examination revealed a 5 mm purple vascular lesion anterior to the
Bacteriorhodopsin is a photosensitive molecule found in the purple membrane of Halobacterium halobium. To investigate the possibility of using photoinduced changes in its refractive index in the 650-800-nm region for photonic switching, we prepared solid dry bacteriorhodopsin films with low
Oral pigmentation may be focal, multifocal, or diffuse. The lesions may be blue, purple, brown, gray, or black. They may be macular or tumefactive. Some are localized harmless accumulations of melanin, hemosiderin, or exogenous metal; others are harbingers of systemic or genetic disease; and some
The colour of a lesion is due to its nature and to its histological substratum. In order to ease diagnosis, oral cavity lesions have been classified according to their colour in: white, red, white and red, bluish and/or purple, brown, grey and/or black lesions. To the best of our knowledge, there is