Involvement of a G Protein Regulatory Circuit in Alternative Oxidase Production in .

The nuclear gene encodes an alternative oxidase that functions in mitochondria. The enzyme provides a branch from the standard electron transport chain by transferring electrons directly from ubiquinol to oxygen. In standard laboratory strains, is transcribed at very low levels under normal growth conditions.

Alternative Oxidase Transcription Factors AOD2 and AOD5 of Control the Expression of Genes Involved in Energy Production and Metabolism.

In , blocking the function of the standard mitochondrial electron transport chain results in the induction of an alternative oxidase (AOX). AOX transfers electrons directly from ubiquinol to molecular oxygen. AOX serves as a model of retrograde regulation since it is encoded by a nuclear gene that is regulated in response to signals from mitochondria.

The characteristics of sexual behavior and extent of condom usage among sexually active Croatians from Eastern Croatia.

Objective: To determine the extent of condom usage as a method of protection from sexually transmitted infections (STIs) among sexually active individuals obliged to present for periodical health examination at the Institute of Public Health for the Osijek-Baranya County, in Osijek, eastern Croatia.

Material And Methods: During February 2004, a cross-sectional questionnaire survey was conducted. The research tool was an unidentified 20-item questionnaire addressing the sexual behavior of study subjects and their partners and methods of protection from STIs.