Pictured below is a series of phosphate group transfer steps in the early part ofsoprenoid biosynthesis in bacteria. With the knowledge that the atoms in green arederived from ATP, predict the structures of compounds A, B and C.from ATPU.U.СТРPPIATPADPCMPO-0=0OHOH

Isoprenoids are found in all living organisms They play different roles in the physiological…

Answered: Pictured below is a series of phosphate…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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What is the function of Histidine as part of the catalytic triad? O The alcohol group of histidine makes a nucleophilic attack on a peptide C=O bond. O The imidazole group acts as a general base and extracts a proton from serine activating it to attack the substrate O The imidazole group acts as a general base and extracts a proton from aspartate activating it to attack the substrate O The imidazole group acts as a general base and extracts a proton from aspartate allowing it to activate serine by transferring a proton
Activity of the light reactions (ETC) can be assayed using an artificial, reducible compound (e- acceptor) added to take the place of the terminal electron acceptor. The artificial e- acceptor used is called DCPIP, a blue dye that turns colorless when it accepts electrons. The reaction is: H2O + DCPIPoxidized (blue) --> O2 + DCPIPreduced (colorless) What molecule from the light reactions of photosynthesis does DCPIP compete with? NADPH H2O ATP ADP NADP+
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Scheme 1: CH3 HNO,/ H,SO, NaOCI CH, HO, CH,OH / H* NO, HNO, / H,SO, NaOC1 OCH HNO,7 H,SO, он но NO2 NO2 CH,OH / H* OCH 3 CH,OH/H* NO2 1. You decide to perform step three of the green pathway first. You start with 1.81 g of the starting material. After the reaction is complete, you weigh 1.18 g of the product, which is a dry solid. What is the percent yield for the third step of the green pathway? Show all of your work!
guanosine and a water bind in the active site, does not matter in which order. The scissile N-1 glycosidic bond between the anomeric carbon and N9 of the base is broken resulting in an oxocarbenium transition state. The leaving group electrons are not protonated, but instead swing up to form a double bond between N9 and C8. The double bond that is already present on the purine swings out on N7 and is protonated by an active site histidine acting as a general acid. An active site aspartate acts as a general base, and deprotonates the water substrate molecule. The deprotonated water is then free to attack the transition state in a manner that will generate an αribose. Draw the active site and show how the mechanism works. You will need to draw 3 or 4 different active site “snap-shots” to show the entire process. Be sure to clearly show the transition state and how it might be stabilized
2. a. Label the following structures as ATP, ADP, AMP, P₁, PPi, or Adenosine. Place your answers in the boxes provided. HO H OH H OH OH O N. H H OH + ATP NH₂ . + ADP 01210 ++++++ O-AMP O O Adenosine *+-+ O 0=210 HO b. Put an "X" in the box for the reaction that is thermodynamically most favorable. OH OPP OPP Adenine + AMP + Adenosine
ymes change their conformation after each reaction, therefore they can only be used once. OEnzymes can be proteins that can be denatured by changes in pH or temperature. D Question 37 A major difference between purine and pyrimidine biosynthesis is that pyrimidine: O are attached to the ribose sugar while being synthesized O are completely synthesized prior to attaching to the ribose sugar O are partially synthesized, the sugar is added, then synthesis is completed O do not have a sugar moiety Question 38 Which of the following is produced in largest numbers by the TCA cycle?

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Pictured below is a series of phosphate group transfer steps in the early part of soprenoid biosynthesis in bacteria. With the knowledge that the atoms in green are derived from ATP, predict the structures of compounds A, B and C. from ATP СТР PPI АТР ADP CMP в OH OH