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rosehippopotamus121Lv1

28 Sep 2019

Describes the steps of translation initiation (how does the ribosome find the mRNA and what is the first step of initiation, include the role of IF3, what occupies the E, P and A sites) in prokaryotes. Name two ways that eukaryotic initiation is different . Now describe elongation in prokaryotes - what occupies each of the A, P and E sites during elongation. What are the roles of Ef-Tu and Ef-G ? Where is energy spent in the process ? You may either draw pictures of describe the processes in words â you do not need to describe termination.

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lalithashwin156Lv10

7 May 2023

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1. What is a codon?

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3. Which amino acid is the first to be coded when synthesizing a protein?

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5. What is the promoter region? Where is it found? What is its role?

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9. At which stages of translation is energy consumed?

1. What is the Shine-Dalgarno sequence? What binds to the sequence during translation? Describe some of the ways in which the sequence can vary, addressing the consequences that any such variation has on translation efficiency. In Detail

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b. after an initial round of peptidyl transfer, prior to aminoacyl tRNA binding

c. following aminoacyl tRNA binding, but before the peptidyl transfer reaction

d. after peptidyl transfer, but before translocation is completed by EF-G

e. in the presence of puromycin, prior to peptidyl transfer

f. upon reaching a stop codon

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