Regulation of the DNA binding affinity of an oligomeric protein can be considered to consist of an intrinsic component, in which the affinity of an individual DNA-binding domain is modulated in response to effector binding, and an extrinsic component, in which the relative position of the protein's two DNA-binding domains are altered so that they can or cannot contact both half-site operators s...

the present writing has been an investigation of the students’ view related to the opposite sex and the role of “self recognition” and “relationship with family” in this regard. this research is a qualitative one done through an interview with 30 students of shahid beheshti university (12 males and 18 females). the result of findings shows that in regard with the relationship with the opposite ...