منابع مشابه
Chondroitin sulphate and keratan sulphate are almost isosteric.
Keratan sulphate and chondroitin sulphate (KS and CS) in the 2-fold helical configurations that are prevalent in solution are of very similar tacticity. The chiral centres, anionic sites and hydrophobic patches are in identical conformations. Only the position of the acetamido group varies from CS to KS, but part of its intramolecular H-bonding potential in CS is retained in KS. The formation o...
متن کاملDepositional Setting of Silver-Rich Quartz-Sulphate-Carbonate Deposits of the Upper Kitsault River Area, Northwest British Columbia
The Upper Kitsault River area lies approximately 23 to 30 km north of Alice Arm, in the Skeena Mining Division, British Columbia. Mineral occurrences are of three principal types: copper and gold-rich quartz-chlorite stockwork deposits, silver-rich quartz-sulphate-carbonate deposits; and molybdenum-rich quartz stockwork deposits (Alldrick et al., 1987). The first two types are hosted by lower J...
متن کاملApparent molar volumes and viscosity B-coefficients of glycine in aqueous silver sulphate solutions at T = (298.15, 308.15, 318.15) k.
Apparent molar volumes (φV) and viscosity B-coefficients for glycine in 0.005, 0.010, 0.015, and 0.020 mol dm-3 aqueous silver sulphate (Ag2SO4) solutions have been determined from solution density and viscosity measurements at (298.15, 308.15, and 318.15) K as a function of glycine concentration. The standard partial molar volume (φV0) and experimental slopes (SV*) obtained from the Masson equ...
متن کاملPhotosynthetic Sulphate Reduction
Plants assimilate inorganic sulphate for the bio synthesis of sulphur containing compounds. The enzymes required for reduction are found pre dominantly in the plastids which provide the necessary energy and the reductants. Sulphate re duction like nitrate or carbon dioxide assimilation is endergonic; for comparison, N 0 3 reduction to ammonia requires +347 kJ mol1 and C 0 2 re duction +478 ...
متن کاملInterferon and heparan sulphate.
In 1954, substances that protected cells from viral infection were discovered and named IFN (interferon). This family of cytokines, which were the first to be used in clinical therapy, is classified into type I and II IFNs. Type I mainly consists of IFNalpha and IFNbeta subtypes, which are structurally related and bind to a common receptor. IFNgamma, the sole type II IFN, is structurally unrela...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1880
ISSN: 0036-8733
DOI: 10.1038/scientificamerican12041880-4100asupp