Analysis of OPN1LW Gene Rearrangement by Southern Blot Technology (CAT#: STEM-MHT-0110-LGZ)

Introduction

Official Full Name: opsin 1, long wave sensitive
Also known as: CBP; RCP; ROP; CBBM; COD5
This gene encodes for a light absorbing visual pigment of the opsin gene family. The encoded protein is called red cone photopigment or long-wavelength sensitive opsin. Opsins are G-protein coupled receptors with seven transmembrane domains, an N-terminal extracellular domain, and a C-terminal cytoplasmic domain. This gene and the medium-wavelength opsin gene are tandemly arrayed on the X chromosome and frequent unequal recombination and gene conversion may occur between these sequences. X chromosomes may have fusions of the medium- and long-wavelength opsin genes or may have more than one copy of these genes. Defects in this gene are the cause of partial, protanopic colorblindness.

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Principle Applications Procedure Materials Notes Related Products

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

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