PR- genome mining Flashcards

1
Q

this article is talking about what

A

mining of genome

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2
Q

what is the goal of genome mining

A

to discover bioactive compounds like antibiotic, antivirus,…

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3
Q

what is genome mining

A

refers to the use of experiment technique to identify genes, biosynthetic pathway and other genetic element from raw genetic data

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4
Q

why do we use genome mining

A
  • used to identify biosynthetic gene cluster encoding the organisms
  • used to identify biosynthetic gene clusters encoding/synthesizing compounds containing specific characteristic/properties
    -this method is used to explore the microbial genome for discovery of secondary metabolite
  • it can also reveal new biochemical insight of the organism
  • make it possible to know the gene that encode Non-ribosomally synthesized peptides (NRPs) in bacteria
  • currently, is being used in identification of core biosynthetic enzyme in genomic data which can be a valuable target from identifying new biosynthetic gene cluster
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5
Q

what are Different Genome Mining Techniques:

A
  1. Single Cell Genome Mining: allow the analysis of individual cells
  2. metagenome mining: involved studying of genetic material recovered directly from the environmental sample.
    3.Regulation-based Genome Mining: focus on finding the gene cluster that generated under the specific condition.
  3. Resistance-based Genome Mining: target gene cluster that associate with antibiotic, so it help to discovery gene that combat the resistance.
    5.Phylogeny-based Genome Mining: identification of gene cluster based on the evolution.
    6.Comparative Genome Mining: compare genome from different species
    7.Classical Genome Mining: used to identify gene cluster
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6
Q

what is Reverse Genetics and Heterologous Expression

A

Reverse Genetics: identifying gene based on their function
Heterologous Expression: this method allow the express of gene from one organism in another to study the gene product like second metabolites

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7
Q

what instrument can we use manual to identify mining of gene encoding biosynthetic enzyme

A

BLAST

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8
Q

use of antiSMASH

A

identify different gene cluster type

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9
Q

what does the genome mining lead to

A

identification of the bioactive metabolite

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10
Q

where did classical genome mining used

A

used for the research of the enzyme used in the biosynthesis of the secondary metabolite like:

  1. genes encoding core-biosynthetic enzymes
  2. genes encoding Polyketides
  3. genes encoding Non-ribosomally synthesized peptides (NRPs)
  4. gene encoding ribosomally synthesized and post-translationally modied peptides (RiPPs): Researchers used bioinformatics tools like PSI-BLAST to mine microbial genomes for homologues of the LanM enzyme, leading to the discovery of new strains capable of producing lanthipeptides.
  5. Terpenoids/isoprenoids
    6 Screening for tailoring enzymes
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11
Q

where and how did Comparative genome mining be used

A

when we want to identify and analyze the biosynthetic gene cluster across different microbial genome/organism

it was used by comparing genetic sequence and structures among various organism and we can be able to identify the similarities and difference that can indicate the presence or absence of the novel compounds.

it involve in the search of the gene that encode the enzymes responsible for the biosynthesis of secondary. metabolite

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12
Q

what can we use to have success Comparative genome mining

A

we can use antiSMASH that allow us to compare identified BGCs with the large data base known GBCs

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13
Q

where and how did Phylogeny based mining methods be used

A

utilize the evolutionary relationship among the organism to guide discovery and analysis of the BGCs responsible for producing secondary metabolite

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14
Q
A
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