Biology, 09.10.2019 23:00 shouyuanroh8462
Protein disulfide isomerase (pdi) is a protein folding enzyme that catalyzes disulfide–sulfhydryl exchange reactions. ribonuclease is an enzyme with two β-sheets, three α-helices, and four disulfide bridges critical to the stability of its structure. pdi rapidly converts inactive, scrambled ribonuclease to enzymatically active ribonuclease. this process is driven by the decrease in free energy as the scrambled conformations are converted into the stable, active conformation of the enzyme. in contrast, pdi rapidly inactivates insulin. what does pdi's effect on insulin imply about the structure of insulin? the three‑dimensional shape of insulin does not contain any disulfide bonds. the active conformation of insulin has more β-sheets than α-helices. the amino acid sequence of insulin is similar to the amino acid sequence of ribonuclease. the active conformation of insulin is not the most thermodynamically preferred form.
Answers: 3
Biology, 22.06.2019 14:50
Read this summary of a scientific theory: "cells are the most basic structural and functional units of life. all living organisms are made up of one or more cells. all cells that are alive in the world today came from pre-existing cells." which of the following would require this theory to be modified? -a.) a survey finds that a majority of people believe viruses carry out the basic processes of life. -b.) a prominent scientist says she feels strongly that one day the theory will be challenged by life on other planets. -c.) the dna of unicellular and multi-cellular organisms is shown to have many fundamental similarities. -d.) scientific observations show that microscopic organisms living in the deep ocean are not made up of cells.
Answers: 1
Protein disulfide isomerase (pdi) is a protein folding enzyme that catalyzes disulfide–sulfhydryl ex...
Mathematics, 26.07.2019 12:30
Mathematics, 26.07.2019 12:30
Mathematics, 26.07.2019 12:30
Mathematics, 26.07.2019 12:30
Mathematics, 26.07.2019 12:30
Mathematics, 26.07.2019 12:30
Mathematics, 26.07.2019 12:30
Mathematics, 26.07.2019 12:30
Mathematics, 26.07.2019 12:30
Mathematics, 26.07.2019 12:30