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Analysis of EWSR1 Gene Rearrangement by Southern Blot Technology (CAT#: STEM-MHT-0001-LGZ)

Introduction

Official Full Name: EWS RNA binding protein 1<br />Also known as: EWS; EWS-FLI1; bK984G1.4<br />This gene encodes a multifunctional protein involved in a variety of cellular processes, including gene expression, cell signaling, RNA processing and trafficking. The protein includes an N-terminal transcriptional activation domain and a C-terminal RNA-binding domain. Chromosomal translocations between this gene and various genes encoding transcription factors lead to the production of chimeric proteins that are involved in tumorigenesis. These chimeric proteins typically consist of the protein's N-terminal transcriptional activation domain fused to the C-terminal DNA-binding domain of the transcription factor protein. Mutations in this gene, specifically a t(11;22)(q24;q12) translocation, are known to cause Ewing sarcoma as well as neuroectodermal and various other tumors. Alternative splicing of this gene results in multiple transcript variants. Related pseudogenes have been identified on chromosomes 1 and 14.




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