Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
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Chapter 31, Problem 2P
Interpretation Introduction
Interpretation:
Out of the following options the characteristic of aminoacyl-tRNA synthetase should be determined.
Attaches the amino acid to the 5’-end of the tRNA.
Always recognizes only one tRNA.
Recognizes all tRNA molecules.
Forms an ester linkage between the amino acid and its tRNA
Concept introduction:
Protein synthesis (translation) is a process of generating new protein sequences inside the cell. This process takes place in the cytoplasm of the cell. This process is balanced by the degradation or export of cellular proteins. It is constituted of three steps, initiation, elongation, and termination.
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Students have asked these similar questions
Initiation. Bacterial protein synthesis is initiated by:
a. S-adenosylmethionyl tRNA
b. Methionyl TRNA
c. N-formylmethionyl tRNA
d. N10-formyltetrahydrofolateN"-formyltetrahydrofolate †RNA
„N10
Describe translation. What is the function of the aminoacyl-tRNA synthase?
Be sure to answer all parts.
Write a possible mRNA sequence that codes for each peptide.
a. His-Cys-Tyr-Val-Ser
5¹-
b. Phe-Val-Thr-Tyr-Glu
5'-
5'-
c. Trp-Phe-Asn-Gln
-3'
U
-3'
с
Table 26.2 The Genetic Code-Triplets in Messenger RNA
First Base
(5' end)
-3'
U
UUU
UUC
UUA
UUG
CUU
CUC
CUA
CUG
AUL
Phe
Phe
Leu
Leu
Leu
Leu
Leu
Leu
la
C
UCU
UCC
UCA
UCG
CCU
CCC
CCA
CCG
Second Base
A
UAU
UAC
UAA
UAG
CAU
CAC
CAA
CAG
Ser
Ser
Ser
Ser
Pro
Pro
Pro
Pro
Tyr
55
Tyr
Stop
Stop
His
His
Gin
Gin
G
UGU
UGC
UGA
UGG
CGU
CGC
CGA
CGG
Cys
Cys
Stop
Trp
Arg
Arg
Arg
Arg
Third Base
(3¹ ond)
DUAC DU AG
с
А
А
Chapter 31 Solutions
Biochemistry
Ch. 31 - Prob. 1PCh. 31 - Prob. 2PCh. 31 - Prob. 3PCh. 31 - Prob. 4PCh. 31 - Prob. 5PCh. 31 - Prob. 6PCh. 31 - Prob. 7PCh. 31 - Prob. 8PCh. 31 - Prob. 9PCh. 31 - Prob. 10P
Ch. 31 - Prob. 11PCh. 31 - Prob. 12PCh. 31 - Prob. 13PCh. 31 - Prob. 14PCh. 31 - Prob. 15PCh. 31 - Prob. 16PCh. 31 - Prob. 17PCh. 31 - Prob. 18PCh. 31 - Prob. 19PCh. 31 - Prob. 20PCh. 31 - Prob. 21PCh. 31 - Prob. 22PCh. 31 - Prob. 23PCh. 31 - Prob. 24PCh. 31 - Prob. 25PCh. 31 - Prob. 26PCh. 31 - Prob. 27PCh. 31 - Prob. 28PCh. 31 - Prob. 29PCh. 31 - Prob. 30PCh. 31 - Prob. 31PCh. 31 - Prob. 32PCh. 31 - Prob. 33PCh. 31 - Prob. 34PCh. 31 - Prob. 35PCh. 31 - Prob. 36PCh. 31 - Prob. 37PCh. 31 - Prob. 38PCh. 31 - Prob. 39PCh. 31 - Prob. 40PCh. 31 - Prob. 41PCh. 31 - Prob. 42PCh. 31 - Prob. 43PCh. 31 - Prob. 44PCh. 31 - Prob. 45PCh. 31 - Prob. 46PCh. 31 - Prob. 47PCh. 31 - Prob. 48PCh. 31 - Prob. 49PCh. 31 - Prob. 50PCh. 31 - Prob. 51PCh. 31 - Prob. 52P
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- proteins. Which of the following will tell you whether a protein would be found in the lumen of the ER? A. You run a hydropathy plot an look for hydrophobic peaks that span 20-30 amino acids B. You isolate microsomes and see whether the proteins are inserted into the membrane of the microsome C. You run a hydropathy plot an look for a lack of hydrophobic peaks that span 20-30 amino acids O D. You do in vitro translation of each protein in the presence or absence of microsomes and look to see whether there is a size change in the presence of microsomes.arrow_forwardAn extra piece. In one type of mutation leading to a form of thalassemia, the mutation of a single base (G to A) generates a new 3' 3' splice site (blue in the illustration below) akin to the normal one (yellow) but farther upstream. Normal 3' end of intron 5' CCTATTGGTCTATTITCCACCCITAGGCTGCTG 3' 5' CCTATTAGTCTAIIIICCACCCTTAGGCTGCTG 3' What is the amino acid sequence of the extra segment of protein synthesized in a thalassemic patient having a mutation leading to aberrant splicing? The reading frame after the splice site begins with TCT.arrow_forwardA lot of time and energy put into creating tRNAs; why?arrow_forward
- 10. A portion of 5'-AUGCCACGAGUUGAC-3'. What amino acid sequence does this code for? To answer the question please: I) explain what is the genetic code and list the properties of the genetic e 2) draw a diagram of protein synthesis; 3) determine which tRNA should be attached to the mRNA; 4) what is the anticodon for the very first tRNA that will attach to mRNA? mRNA molecule has the sequence anarrow_forwardTranscription. Using strand 1 of the DNA molecule as a template, transcribe a messenger RNA molecule (a.k.a. mRNA transcript). Strand 1 3’ End TTG CTT CAC CTT GCG CGC CCG CGC TAA TTG 5’ end mRNAarrow_forwardRNA is transcribed. Label the 5′ and 3′ ends of each strand. 17. The following sequence of nucleotides is found in a single-stranded DNA template: ATTGCCAGATCATCCCAATAGAT Assume that RNA polymerase proceeds along this template from left to right. a. Which end of the DNA template is 5′ and which end is 3′? b. Give the sequence and identify the 5′ and 3′ ends of the RNA transcribed from this template.arrow_forward
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