ترجمه مقاله نقش ضروری ارتباطات 6G با چشم انداز صنعت 4.0
- مبلغ: ۸۶,۰۰۰ تومان
ترجمه مقاله پایداری توسعه شهری، تعدیل ساختار صنعتی و کارایی کاربری زمین
- مبلغ: ۹۱,۰۰۰ تومان
Mechanical properties of biomolecules are of great interest because they govern the shape of living organisms and provide boundary conditions for all biochemistry [1]. The response of representative proteins to external mechanical stress has been studied using simple physical models [2,3]. Mechanically stretched single structural proteins, such as titin or ankyrin, have been investigated on a single molecule level using experimental techniques, as well i.e. atomic force microscope (AFM) [4,5]. The recently developed computational technique of steered molecular dynamics (SMD) is an useful tool in biophysics, complementary to single molecule level manipulation methods [6,7] such as AFM or optical tweezers. In the SMD method [8] effects of an external force applied to a critical part of a biopolymer are traced using numerical solutions of Newton’s equation of motions. The biomolecule is modelled by a set of point masses coupled by appropriate interaction potentials. The formalism and recent progress of the single molecule SMD method have been recently reviewed [7,9,10]. Its advantages have been shown in studies of mechanical properties of oligosaccharides [9–12] and sugar transport through protein pores [13], titin [14– 16] or mechanoselective channels [7]. However, in contrast to relatively well studied structural proteins, enzymes were rarely probed using AFM or SMD methods.