Posts Tagged ‘Triphosphate’

DNA helicase

“Helicases separate nucleic acid duplexes into their component strands using energy from ATP hydrolysis. The crystal structure of this DNA helicase from bacteriophage T7, reveals an hexagonal arrangement of six identical subunits. Surprisingly, the ring is not sixfold symmetric, but is slightly squished. A model for the mechanism of how the enzyme might work explains this structural asymmetry. Of the six potential ATP binding sites, two opposing ones bind ATP tightly, two are more likely to bind ADP and phosphate, and two are empty. These three states may interconvert in a coordinate fashion as ATP is hydrolyzed, creating a ripple effect that continuously runs around the ring. Because of these conformational changes, the loops that extend into the center hole of the ring—that are proposed to bind DNA—oscillate up and down, as seen in this cross section. The oscillating loops might pull a DNA strand through the central hole, thus unwinding the double helix in the process. A frontal view shows the full dynamics of this fascinating protein machine.”

ATP Synthesis A Level Biology Revision Video

A revision video about ATP synthesis for A level Biology (WJEC).
Song : Encore Une Fois [Original 12" Vocal Mix] – Sash! .

ATP Synthase

You Need ATP

ATP is cellular energy. How do we get it, why do we need it? What is the relationship between PXP, our mitochondria, which produces ATP, and our cellular health and overall function? PXP provides pure food in a form that can get to the cells and fuel the mitochondria so that enough ATP is available to us for normal healthy function. There are many signs that tell us when we are low in ATP energy, such as muscle cramps.

This amusing video talks about ATP, what it is and how ATP give fuel for sustaining life.

Sources of Nutrients – ATP

This is why PXP is so valuable to our bodies – it gives our cells what they need to create ATP. The results? Decreased body aches, for one, because your body has the fuel it needs. Polysaccharide x peptides = PXP.

nutrients such as carbohydrates, fats and proteins create energy (fuel) for the body call adenosine triphosphate (ATP) which is the only chemical that muscles use for energy.

ATP

“ATP molecules store and supply energy for cellular processes. An ATP molecule contains three building blocks: the flat purine ring system containing multiple nitrogen atoms shown in blue, the ribose sugar in the middle, and the three phosphate groups with the phosphorus atoms shown in yellow.” Essential Cell Biology, Second Edition by Alberts, Bray, Hopkin, Johnson, Lewis, Raff, Roberts, Walter copyright 2004 by Garland Science Publishing

ATP: Adenosine Triphosphate

ATP is biological energy. Adenosine Triphosphate. In the presence of water then part of the phosphates transforms ATP into ADP and energy. ATP is created by our mitochondria. PXP is fuel for our cells and the mitochondria function, creating ATP or energy for all body functions.

Introduction to ATP or Adenosine Triphosphate