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The Application of Spectral Informatics on the Genetic Marker

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发表于 2021-2-5 17:25:29 | 显示全部楼层 |阅读模式
This journal article is previously published as: Liu Huan. (2021). The Application of Spectral Informatics on the Genetic Marker. Journal of Environment and Health Science (ISSN 2314-1628), 2021(02). https://doi.org/10.58473/JBS0003, which is converted into Journal of Biological Sciences (ISSN 2958-4035). Both Journals belong to the same publisher, Liu Huan. The previous journal article is closed to the public, but the previous reference is still valid.

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2016. Copyrights Register Information: The majority of these materials are registered as book '著作权人:刘焕;作品:《研究生文凭进展(第三版)》' 2016, which can be cataloged in National Copyright Database: http://qgzpdj.ccopyright.com.cn/

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The formally published serials is the printing <Journal of Biological Sciences (ISSN 2958-4035)>, and the serials NO. is the month/year when the materials is accessible on this website, authorized by publisher;正式发表的期刊是印刷版《生物科学杂志 (ISSN 2958-4035)》,期刊期号为文章内容在本网站上网年/月,出版人许可自行正式发表。

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Latest revised on 29/05/2023.

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Article 1-3. The Application of Spectral Informatics on the Genetic Marker/光谱信息及其在遗传标记技术的应用

Author: Liu Huan (1983 - ), Master of Science (First Class Honours,2009), The University of Auckland. ORCID: https://orcid.org/0000-0003-4881-8509

This article proposed two new kinds of application methods of spectral informatics on the analysis of the DNA/RNA molecules.

1. The common methods used as chromosome binding technology mainly include Centromere Binding Technology (C-Binding), Guinacrine Binding Technology (G-Binding), Giemsa Binding Technology (G-Binding), Reverse Binding Technology (R-Binding), etc. These chromosome binding technologies are designed on the basis of the various staining chemicals [1], which reflect different regions or functions in chromosome. In my article, DAPI fluorescence binding technology, which results in the appearance of AT rich region on chromosome, is selected as an example of designing a new method in observing the structure of DNA molecules at three dimensions:

If the slide glass is the horizontal plane, and the vertical line is the eyesight line of microscope for DNA molecule observation, then the angle between the planes of AT DNA sequences and the eyesight line observed by microscope is ± α (0°≤ α ≤90°),  and α is generally uniform in the DNA molecules of a species, but varies among different species. If this angle tends to be zero, then the DAPI binding tends to be not observed; If this angle tends to be 90°, then the DAPI binding tends to be more clearly observed by florescence microscope. The structure of DNA molecules can be consequently deduced by the clearness of fluorescence binding. Despite of fluorescence polarization, it is expected to obtain the reliable and re-occurring results when the other experiment conditions remains constant.

Consequently, it is to classify the DNA samples by the molecular cytogenetic karyotype using FISH technology firstly, based on which the DNA molecular structure is further deduced according to the clearness of fluorescence binding. Then this structural biology is correlated to the functional groups of biological traits (such as pathological characters or immunological characters) as bio-markers.

Step 1. The molecular cytogenetic karyotype of chromosomes is analyzed by fluorescence in situ hybridization (FISH) technique;

Step 2. These chromosomes examined in experiment are classified by multivariate cluster analysis and genetic distance analysis on the basis of molecular cytogenetic karyotype, preliminarily leading to different families of chromosomes.

Step 3. Within each family of chromosomes, the DNA molecular structure of each chromosome is deduced according to the clearness of fluorescence binding described above. Then it is further to classify different sub-families of chromosome by this structural biology marker.

Step 4. Each sub-family of chromosome is correlated with the functional groups of biological traits (such as pathological characters or immunological characters) as bio-markers.

In order to quantify the clearness of fluorescence binding, the spectrometer is used to measure the brightness of each spectral line on fluorescence binding. More chromosome binding showing other base pairs (such as GC base pair) are selected to compare with AT-rich base pair for further analysis.   

2. There is a novel Tech designed for future Research & Development in Air quality Monitoring:

After a family of pathogenic virus (or bacteria) has been identified in Lab, the unique DNA or RNA sequences specifically for this family, which can not lead to PCR bands in the other microbial families but result in clear PCR bands in this pathogenic family only, are screened and synthesized into FISH probes for FISH step again. The methods of FISH probe preparation is listed [1]. Then the concentration of this pathogen family in water solution can be tested by ultraviolet spectrophotometer, yielding a feasible and affordable method for routine air quality monitoring. The steps are listed below. Please note, the specific and unique DNA or RNA sequences (or the specific locus), which are indicated by the unique PCR bands in gene mutation virus only, is the key for this selection of FISH probe preparation. It is expected that the gene mutation virus family results in unusual and sharp increase of airborne density, as compared to its parental virus family, because the gene mutation significantly increases the genome replication rate. After airborne pathogen is collected by air quality samplers, the pathogen samples are transferred into the water solution:

Step 1. SDS-PAGE method for protein separation is conducted exactly, to separate the virus DNA or RNA molecules from its protein ‘coat’ around DNA or RNA molecules[2].

Step 2. In total five different densities of a virus family (such as the gene mutation one) are cultivated and separated in Lab. The different densities of a virus family can be obtained by adjusting the water solution concentrations proportionally.  

Step 3. Specific FISH probe is prepared for this virus family, and FISH procedure is conducted on five densities of this virus sample without the last drying process, leading to five different water solution concentrations (Sample 1, Sample 2 ..., Sample5) of virus genomes binding FISH probe.

Step 4. The same volume of virus water solution are abstracted from Sample 1, Sample 2, ..., Sample 5, respectively, and the density of each virus water solution is counted by transmission electron microscopy after dying process.

Step 5. The regression equation for ultraviolet spectrophotometer is consequently worked out by respectively detecting the fluorescence intensity in five different water solution concentrations (Sample 1, Sample 2 ..., Sample 5) of virus genomes binding FISH probe without the drying process, in combination with the counted density of each virus water solution in step 4.

Step 6. After the regression equation for ultraviolet spectrophotometer is calculated specifically against the virus family, air quality monitoring of this airborne virus family can be implemented routinely. Of course, this measurement method of virus density can be also applicable on other virus of different transmission patterns, which are not only applicable on the airborne ones.
  
Please note: This is the revised materials in book “Proceedings for Degree of Postgraduate Diploma in Environmental Science (3rd Edition).” published in 2016. Firstly Revised on 03/01/2021; Secondly Revised on 05/02/2021; Thirdly Revised on 04/01/2022; Fourthly Revised on 05/01/2022; Fifthly Revised on 24/02/2022. This journal article is previously published as: Liu Huan. (2021). Article 1-3. The Application of Spectral Informatics on the Genetic Marker. Journal of Environment and Health Science (ISSN 2314-1628), 2021(02)., which is converted into Journal of Biological Sciences (ISSN 2958-4035). Both Journals belong to the same publisher, Liu Huan. The previous journal article is closed to the public, but the previous reference is still valid. Latest Revised on 21/01/2023. 25/04/2023. 29/05/2023.

References:
[1]. 周延清, 张改娜与杨清香, 生物遗传标记与应用, 2008, 化学工业出版社.
[2]. Liu Huan. (2021). Article 1-1. Classification of Virus by DNA Genetic Marker and Its Theory/DNA 遗传标记技术与病毒生物分类以及相关理论. Journal of Environment and Health Science (ISSN 2314-1628), 2021(02). https://doi.org/10.58473/JBS0001

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 楼主| 发表于 2022-1-4 16:18:16 | 显示全部楼层
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 楼主| 发表于 2021-9-11 16:48:34 | 显示全部楼层
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 楼主| 发表于 2021-2-6 15:24:56 | 显示全部楼层
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