Biochemistry
6th Edition
ISBN: 9781305577206
Author: Reginald H. Garrett, Charles M. Grisham
Publisher: Cengage Learning
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Chapter 29, Problem 14P
The Lariat Intermediate in RNA Splicing Draw the structures that comprise the lariat branch point formed during mRNA splicing: the invariant A. its 5’-R neighbor, its 3’-Y neighbor, and its 2’-G neighbor.
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Chapter 29 Solutions
Biochemistry
Ch. 29 - Prob. 1PCh. 29 - The Events in Transcription Initiation Describe...Ch. 29 - Substrate Binding by RNA Polymerase RNA polymerase...Ch. 29 - Comparison of Prokaryotic and Eukaryotic...Ch. 29 - Prob. 5PCh. 29 - Prob. 6PCh. 29 - Prob. 7PCh. 29 - Alternative Splicing Possibilities Suppose exon 17...Ch. 29 - Prob. 9PCh. 29 - Prob. 10P
Ch. 29 - Post-transcriptional Modification of Eukaryotic...Ch. 29 - Prob. 12PCh. 29 - Prob. 13PCh. 29 - The Lariat Intermediate in RNA Splicing Draw the...Ch. 29 - Prob. 15PCh. 29 - Prob. 16PCh. 29 - Prob. 17PCh. 29 - Prob. 18PCh. 29 - Figure 29.15 highlights in red the DNA phosphate...Ch. 29 - Chromatin decompaction is a preliminary step in...
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- In eukaryotes there is not a consistent relationship between the length of the coding sequence of a gene and the length of the mature mRNA it encodes, even though one nucleotide in DNA = one nucleotide in pre-mRNA or primary transcript. Explain why this is so.arrow_forwardOne procedure of obtaining cDNA from mRNA is by using oligo(dT) primers. What are oligo(dT)s? Why does using them make sense based on the processing (or modification) of precursor mRNA to get mature mRNA?arrow_forwardWhat is the peptide encoded by this mRNA sequence 5’-UCU-GCA- AAU-UAA -GUU-3’?arrow_forward
- What amino acid sequence does the following mRNA nucleotides sequence specify? 5'- AUGGCCAGCUGU -3' Express the sequence of amino axis's using the three-abbreviations, separate hyphens (e.g., Met-Ser-Thr-Lys-Gly).arrow_forwardBased on your knowledge of introns and pre-mRNA splicing, discuss whether or not you think alternative splicing fully explains the existence of introns. Can you think of other possible reasons to explain their existence?arrow_forwardA single base addition and a single base deletion approximately 15 bases apart in the mRNA specifying the protein lysozyme from the bacterial virus T4 caused a change in the protein from its wil-type composition= lys-ser-pro-ser-leu-asn-ala-ala-lys mutant form= lys-val-his-his-leu-met-ala-ala-lys. Decipher the segment of mRNA for both the original protein and the double mutant. Which base was added? Which was deleted?arrow_forward
- Using the genetic code table provided below, identify the open reading frame in this mRNA sequence, and write out the encoded 9 amino acid long peptide sequence: 5'- CGACAUGCCUAAAAUCAUGCCAUGGAGGGGGUAACCUUUU C A G U UUU Phe UCU Ser UUC Phe UCC Ser UAC UCA Ser UAA UCG Ser UAG UUA Leu Leu G C CUU Leu CUC Leu CCC CUA Leu CUG Leu AUU lle AUC lle AUA lle AUG Met ACG ACU Thr ACC Thr ACA Thr Thr A UAU Tyr UGU Cys Tyr UGC Cys CCU Pro CAU His CGU Arg Pro CAC His Pro CAA Gln CGC Arg CGA Arg CCA CCG Pro CAG Gln CGG Arg GUU Val GCU Ala GAU GUC Val GCC Ala GAC GUA Val GCA Ala GAA GUG Val GCG Ala GAG Stop UGA Stop UGG AAU Asn AAC AAA AAG AGU Asn AGC G Lys Lys Asp Asp Glu Glu Stop A Trp Ser Ser AGA Arg AGG Arg GGU Gly GGC Gly UCAG GGA Gly GGG Gly с U C A G U C A G U C A Garrow_forwardGiven the following mRNA transcript: 5’-UUUGGCAUGGGUAUCGUAGAGAUGGAAUUCAUAGUGGAGUAA-3’ What is the one-letter abbreviation of the protein product of the mRNA transcript?arrow_forwardDraw a pre-mRNA with at least 4 exons and 3 introns and draw two possible mature mRNAs that can result from alternative splicing of this RNA.arrow_forward
- Transcription occurs at a rate of about 30 nucleotides per second. is it possible to calculate the time required to synthesize a titin mRNA from the information given here?arrow_forwardA hypothetical tripeptide Leu-Leu-Leu could be synthesized by the cell. What three different base triplets in mRNA could be combined to code for this tripeptide?arrow_forwardHelp me figure out how I should interpret and read these graphs. We are looking to see whether the m6a acceptor mutant will have an impact on splicing. Just need a detail breakdown thanks. I am presenting at journal club and need help interpreting will the goals in mind. We are currently conducting experiments to understand how the splicing of circE7 relates to the splicing of linear E6*I. Goal is to determine whether the mutation impact splicing. Trying to understand whether m6A will impact splicing. Sm should impact splicing ratio. My PI stated that the results show that it inhibited linear splicing and promoted backsplicing. I need a detailed explanation for the entirety so I can understandarrow_forward
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