Domanda del libro di testo
The regulation of mRNA decay relies heavily upon deadenylases and decapping enzymes. Explain how these classes of enzymes are critical to initiating mRNA decay.
781
views
Ch. 18 - Post-transcriptional Regulation in Eukaryotes
Klug12th EditionConcepts of GeneticsISBN: 9780135564776
Non è quello che usi tu?Cambia libro di testoScegli un libro di testo diverso
TOC.tableOfContents
- Ch. 1 - Introduction to Genetics17
- Ch. 2 - Mitosis and Meiosis36
- Ch. 3 - Mendelian Genetics51
- Ch. 4 - Extensions of Mendelian Genetics74
- Ch. 5 - Chromosome Mapping in Eukaryotes51
- Ch. 6 - Genetic Analysis and Mapping in Bacteria and Bacteriophages46
- Ch. 7 - Sex Determination and Sex Chromosomes33
- Ch. 8 - Chromosome Mutations: Variation in Number and Arrangement40
- Ch. 9 - Extranuclear Inheritance31
- Ch. 10 - DNA Structure and Analysis43
- Ch. 11 - DNA Replication and Recombination44
- Ch. 12 - DNA Organization in Chromosomes30
- Ch. 13 - The Genetic Code and Transcription54
- Ch. 14 - Translation and Proteins47
- Ch. 15 - Gene Mutation, DNA Repair, and Transposition41
- Ch. 16 - Regulation of Gene Expression in Bacteria29
- Ch. 17 - Transcriptional Regulation in Eukaryotes41
- Ch. 18 - Post-transcriptional Regulation in Eukaryotes33
- Ch. 19 - Epigenetics33
- Ch. 20 - Recombinant DNA Technology44
- Ch. 21 - Genomic Analysis36
- Ch. 22 - Applications of Genetic Engineering and Biotechnology36
- Ch. 23 - Developmental Genetics37
- Ch. 24 - Cancer Genetics34
- Ch. 25 - Quantitative Genetics and Multifactorial Traits54
- Ch. 26 - Population and Evolutionary Genetics45
Klug12th EditionConcepts of GeneticsISBN: 9780135564776Non è quello che usi tu?Cambia libro di testo
Tutti i libri di testo
Klug 12th EditionCh. 18 - Post-transcriptional Regulation in EukaryotesProblema 4
Klug 12th EditionCh. 18 - Post-transcriptional Regulation in EukaryotesProblema 4Capitolo 18, Problema 4
Consider the CT/CGRP example of alternative splicing show. Which different types of alternative splicing patterns are represented?
Guida verificata passo dopo passo1
Step 1: Understand the concept of alternative splicing, which is a process by which different combinations of exons are joined together from a single pre-mRNA transcript, resulting in multiple mRNA variants and thus different protein isoforms from one gene.
Step 2: Review the CT/CGRP example in Figure 18.3 carefully, noting which exons are included or excluded in the different mRNA transcripts shown. Pay attention to any exons that are skipped, mutually exclusive, or retained.
Step 3: Identify the types of alternative splicing patterns present. Common types include exon skipping (an exon is included in one transcript but skipped in another), mutually exclusive exons (only one of two exons is included), alternative 5' splice site (different splice donor sites), alternative 3' splice site (different splice acceptor sites), and intron retention (an intron is retained in the mature mRNA).
Step 4: Match the observed splicing events in the CT/CGRP example to these categories by comparing the exon structures of the different mRNA isoforms shown in the figure.
Step 5: Summarize which specific alternative splicing patterns are represented in the CT/CGRP example based on your analysis, explaining how these patterns contribute to the diversity of the resulting proteins.
Risposta video verificata per un problema simile:
Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
2mConcetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
Alternative Splicing
Alternative splicing is a process during gene expression where a single pre-mRNA transcript can be spliced in multiple ways to produce different mature mRNA variants. This allows one gene to encode multiple protein isoforms, increasing proteomic diversity without increasing gene number.
Video consigliato:
Percorso guidato
01:57
Alternative DNA Forms
Types of Alternative Splicing Patterns
There are several common patterns of alternative splicing, including exon skipping, mutually exclusive exons, alternative 5' splice sites, alternative 3' splice sites, and intron retention. Each pattern alters the mRNA sequence differently, affecting the resulting protein structure and function.
Video consigliato:
Percorso guidato
01:57Alternative DNA Forms
CT/CGRP Gene Example
The CT/CGRP gene is a classic example illustrating alternative splicing, where different splicing patterns produce either calcitonin (CT) or calcitonin gene-related peptide (CGRP). Understanding this example helps clarify how alternative splicing can regulate tissue-specific protein expression.
Video consigliato:
Percorso guidato
09:09Mapping Genes
Pratica correlata
Domanda del libro di testo
Write a short essay describing how an mRNA may be regulated in three different ways by specific cis-elements and RBPs.
573
views
Domanda del libro di testo
Explain how a tissue-specific RNA-binding protein can lead to tissue-specific alternative splicing via splicing enhancers or splicing silencers.
437
views
Domanda del libro di testo
How do we know that microRNAs negatively regulate target mRNAs?
597
views
Domanda del libro di testo
Explain how the use of alternative promoters and alternative polyadenylation signals produces mRNAs with different 5' and 3' ends.
778
views
Domanda del libro di testo
List three types of alternative splicing patterns and how they lead to the production of different protein isoforms.
646
views