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Analysis of TERT Gene Rearrangement by Southern Blot Technology (CAT#: STEM-MHT-0023-LGZ)

Introduction

Official Full Name: telomerase reverse transcriptase<br />Also known as: TP2; TRT; CMM9; EST2; TCS1; hTRT; DKCA2; DKCB4; hEST2; PFBMFT1<br />Telomerase is a ribonucleoprotein polymerase that maintains telomere ends by adding the telomeric repeat sequence TTAGGG. The enzyme consists of a protein component encoded by the gene that has reverse transcriptase activity and an RNA component that serves as a template for telomeric repeats. The expression of telomerase plays a role in cellular aging because it is normally repressed in postnatal somatic cells, leading to progressive shortening of telomeres. Dysregulation of somatic telomerase expression may be related to tumorigenesis. Mouse studies suggest that telomerase is also involved in chromosome repair, as de novo synthesis of telomeric repeats can occur at double-strand breaks. Alternative splice variants encoding different isoforms of telomerase reverse transcriptase have been identified; the full-length sequences of some variants have not been determined. Alternative splicing at this site is thought to be a mechanism for the regulation of telomerase activity.




Principle

Under certain conditions, two single strands of nucleic acid with certain homology can be specifically hybridized to form double strands according to the principle of base complementarity. Generally, DNA molecules to be detected are digested with restriction enzymes, separated by agar-gel electrophoresis, denatured and transferred to nitrocellulocellulose film or nylon film or other solid phase support according to their position in the gel, fixed and then reacted with DNA probes labeled with isotopes or other markers. This is followed by autoradiography or an enzyme reaction to detect the amount of specific DNA molecules. If the object to be tested contains a sequence that is complementary to the probe, the two are combined by the principle of base complementarity, and the free probe is washed and detected by self-development or other suitable techniques, thus revealing the fragment to be tested and its relative size.

Applications

Gene Rearrangement Detection

Procedure

1. Sample Processing
2. DNA Extraction and Digestion
3. Gel Electrophoresis
4. Gel Pretreatment
5. Transfer membrane
6. Probe Labeling
7. Prehybridization (blocking)
8. Southern hybridization
9. Membrane washing
10. Autoradiographic Assay
11. Results Analysis

Materials

Sample: DNA, Bacterial Fluid/Tissue/Cell