The bacteriorhodopsin (bR) is a protein which plays a role as a proton pump when is stimulated by light. The bR is involved in ATP's synthesis through a process of transductíon, turning light energy into chemical energy(photosynthesis). The bR codífied by bop gene and located in the cell envelope, covers up to 50 % of the extreme haloarchaeas when the environment is anaerobic. This feature shows a maximum degree of adjustment to anaerobic conditions of halophilic microorganism. Since the bR functíon as photoreceptor was proposed, several studies have been done in order to elucidate its amino acid sequence, structural conformation, physicochemical properties and expression and gene regulation characteristics. The excellent bR's photochemical and thermodynamic properties make it a peculiar molecule and a candidate to biotechnological applications in biocomputation for example in optical...

The bacteriorhodopsin (bR) is a protein which plays a role as a proton pump when is stimulated by light. The bR is involved in ATP's synthesis through a process of transductíon, turning light energy into chemical energy(photosynthesis). The bR codífied by bop gene and located in the cell envelope, covers up to 50 % of the extreme haloarchaeas when the environment is anaerobic. This feature shows a maximum degree of adjustment to anaerobic conditions of halophilic microorganism. Since the bR functíon as photoreceptor was proposed, several studies have been done in order to elucidate its amino acid sequence, structural conformation, physicochemical properties and expression and gene regulation characteristics. The excellent bR's photochemical and thermodynamic properties make it a peculiar molecule and a candidate to biotechnological applications in biocomputation for example in optical...

Remediation technologies of oil contaminated soils are based on physicochemical, thermal and biological treatments. Within the latter, bioremediation proved to be an efficient and sustainable technology, commonly performed by adding synthetic fertilizers (F) and control of the environmental conditions process. This work, carry out at laboratory-scale, study the efficacy of adding biosolids (B) and composted biosolids (CB) compared to bioremediation conventional methods in north Patagonian soils contaminated with oil. We study the petroleum hydrocarbons degradation rate by applying B and CB vs conventional treatments: F addition and landfarming method, aeration, tillage and wetting (LH). The obtained results shows a statistically significant difference in the degradation kinetics, where B> CB> F> LH. The heavy hydrocarbon fraction (HFP), considered resistant to biodegradation sho...

La Homocistinuria, es un desorden metabólico autosómico recesivo, cuya forma clásica es causada por deficiencia de cistationina β-sintasa, debido a mutaciones en el gen CBS (Cr 21q22.3). Se describe el caso de un varón de 17 años con hipopigmentación de piel y faneras, retraso psicomotor moderado, hábito marfanoide, miopía severa, subluxación del cristalino bilateral, que además presentó eventos psicóticos y una hemiparesia izquierda secundaria a un infarto lacunar. La determinación de homocisteína en plasma se encontró elevada (>9,9mg/dl), así como niveles altos de nitroprusiato de sodio en orina(4+) que confirmaron el diagnóstico clínico de homocistinuria. La homocistinuria clásica genera múltiples complicaciones a nivel dérmico, oftalmológico, cognitivo, osteoarticular y psiquiátrico; que podrían evitarse con un diagnóstico y tratamiento oportuno a ...