You are here

Differential expression of cardiac troponin T isoforms in normal and cardiac non-function mutant axolotl hearts

Download pdf | Full Screen View

Date Issued:
2006
Summary:
A recessive mutant gene, termed "c", for cardiac non-function in the Mexican axolotl, Ambystoma mexicanum, is responsible for the failure of myofibrillogenesis in cardiac nonfunction mutant embryonic hearts. Animals that are homozygous for the mutation (c/c) fail to develop beating hearts and consequently die. Thus, the Mexican axolotl has been a useful animal model to study embryonic heart development. Recently, the cardiac troponin T (cTnT) gene, along with three additional shorter isoforms of the gene, were cloned from normal embryonic hearts. These isoforms are believed to be the alternately spliced forms of the full length gene. One of the isoforms cloned is missing a cardiac-specific exon. Real-time PCR reveals that homozygous recessive mutant embryos (c/c) exhibit a lower transcription level of the cTnT gene than wildtype animals (+/+ or +/c). Expression levels of each of the isoforms are compared in normal and mutant hearts using quantitative real-time PCR.
Title: Differential expression of cardiac troponin T isoforms in normal and cardiac non-function mutant axolotl hearts.
124 views
52 downloads
Name(s): Sferrazza, Gian Franco.
Florida Atlantic University, Degree grantor
Lemanski, Larry F., Thesis advisor
Type of Resource: text
Genre: Electronic Thesis Or Dissertation
Issuance: monographic
Date Issued: 2006
Publisher: Florida Atlantic University
Place of Publication: Boca Raton, Fla.
Physical Form: application/pdf
Extent: 45 p.
Language(s): English
Summary: A recessive mutant gene, termed "c", for cardiac non-function in the Mexican axolotl, Ambystoma mexicanum, is responsible for the failure of myofibrillogenesis in cardiac nonfunction mutant embryonic hearts. Animals that are homozygous for the mutation (c/c) fail to develop beating hearts and consequently die. Thus, the Mexican axolotl has been a useful animal model to study embryonic heart development. Recently, the cardiac troponin T (cTnT) gene, along with three additional shorter isoforms of the gene, were cloned from normal embryonic hearts. These isoforms are believed to be the alternately spliced forms of the full length gene. One of the isoforms cloned is missing a cardiac-specific exon. Real-time PCR reveals that homozygous recessive mutant embryos (c/c) exhibit a lower transcription level of the cTnT gene than wildtype animals (+/+ or +/c). Expression levels of each of the isoforms are compared in normal and mutant hearts using quantitative real-time PCR.
Identifier: 9780542566783 (isbn), 13320 (digitool), FADT13320 (IID), fau:10170 (fedora)
Collection: FAU Electronic Thesis or Dissertation Collection
Note(s): Charles E. Schmidt College of Science
Thesis (M.S.)--Florida Atlantic University, 2006.
Subject(s): Vertebrates--Embryology--Methodology
Muscles--Molecular aspects
Gene expression
Cell differentiation
Held by: Florida Atlantic University Libraries
Persistent Link to This Record: http://purl.flvc.org/fcla/dt/13320
Sublocation: Digital Library
Use and Reproduction: Copyright © is held by the author with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder.
Use and Reproduction: http://rightsstatements.org/vocab/InC/1.0/
Host Institution: FAU
Is Part of Series: Florida Atlantic University Digital Library Collections.