Calorimetric studies on viroids
نویسندگان
چکیده
منابع مشابه
Conformaticm of viroids
Viroids are uncoated infectious RNA molecules (MW 107 OOO127 000) known as pathogens of certain higher plants. Thermodynamic and kinetic studies were carried out on highly purified viroid preparations by applying UV-absorption melting analysis and temperature jump methods. The thermal denaturation of viroids is characterized by high thermal stability, high cooperativlty and a high degree of bas...
متن کاملViruses, viroids and vectors
On San Miguel, one of the smallest of the 7 000 islands of the Philippines, a few coconut palms were slowly dying in 1928. Ten years later, 50 000 palms on this island were dead or dying. The disease seemed to be limited to a certain area and affected only coconut palms. No bacteria or fungi were found to be associated with the dying palms. The disease, believed to be caused by a virus, began t...
متن کاملCalorimetric studies of the elongation of Avena coleoptile segments.
Elongation rate and heat produced by Avena coleoptile segments suspended in sucrose buffer solutions were measured at pH values from 3.5 to 8.5. The caloric efficiency of elongation (CEE) was defined as the ratio of the rate of elongation to the rate of heat production. Elongation and CEE were greatest at intermediate pH values, but heat production (about 1 cal/g.hr) was insensitive to pH withi...
متن کاملCalorimetric studies of ligand binding in R67 dihydrofolate reductase.
R67 dihydrofolate reductase (DHFR) is a novel bacterial protein that possesses 222 symmetry and a single active site pore. Although the 222 symmetry implies that four symmetry-related binding sites must exist for each substrate as well as for each cofactor, various studies indicate only two molecules bind. Three possible combinations include two dihydrofolate molecules, two NADPH molecules, or ...
متن کاملAdiabatic calorimetric decomposition studies of 50 wt.% hydroxylamine/water.
Calorimetric data can provide a basis for determining potential hazards in reactions, storage, and transportation of process chemicals. This work provides calorimetric data for the thermal decomposition behavior in air of 50wt.% hydroxylamine/water (HA), both with and without added stabilizers, which was measured in closed cells with an automatic pressure tracking adiabatic calorimeter (APTAC)....
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nucleic Acids Research
سال: 1978
ISSN: 0305-1048,1362-4962
DOI: 10.1093/nar/5.5.1581