Difference between revisions of "YBR225W"

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(Growth Curve)
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In a BY4735 background, knocking out YBR225W does not seem to have any effect on the strain's growth rate.  In this assay, the BY4735 strain's doubling time was 162 minutes, while the YBR225W knock-out strain's doubling time was 156 minutes.  (These doubling times are the means of three experiments.)
 
In a BY4735 background, knocking out YBR225W does not seem to have any effect on the strain's growth rate.  In this assay, the BY4735 strain's doubling time was 162 minutes, while the YBR225W knock-out strain's doubling time was 156 minutes.  (These doubling times are the means of three experiments.)
  
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===[[UW-Stout/Hydroxychloroquine_SP21|Hydroxychloroquine]]===
  
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[[Image:YBR225W.png]]
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HCQ refers to hydroxychloroquine
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Under normal conditions, the BY4753 doubling time is 144 minutes, while that of YBR225W is 236 minutes. Thus, YBR225W doubles slower than the wild strain. When grown in an environment with hydroxychloroquine, YBR225W doubled in 191 minutes, while BY4753 doubled in 276 minutes. Surprisingly, YBR225W doubling time decreased dramatically, which means that it grew faster in the presence of hydroxychloroquine. The BY4753 strain was inhibited by hydroxychloroquine. (These doubling times and curves are the means of three experiments.)
  
 
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===[[UW-Stout/Salt_Concentration_SP21|Salt Concentration (NaCl)]]===
 
===[[UW-Stout/Salt_Concentration_SP21|Salt Concentration (NaCl)]]===
  

Revision as of 13:54, 27 April 2021

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Systematic name YBR225W
Gene name
Aliases
Feature type ORF, Uncharacterized
Coordinates Chr II:670627..673329
Primary SGDID S000000429


Description of YBR225W: Putative protein of unknown function; non-essential gene identified in a screen for mutants affected in mannosylphophorylation of cell wall components[1][2]




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Community Commentary

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This gene is part of the UW-Stout Orphan Gene Project. Learn more here.

Growth Curve

YBR225W-water.png

In a BY4735 background, knocking out YBR225W does not seem to have any effect on the strain's growth rate. In this assay, the BY4735 strain's doubling time was 162 minutes, while the YBR225W knock-out strain's doubling time was 156 minutes. (These doubling times are the means of three experiments.)

Hydroxychloroquine

YBR225W.png

HCQ refers to hydroxychloroquine

Under normal conditions, the BY4753 doubling time is 144 minutes, while that of YBR225W is 236 minutes. Thus, YBR225W doubles slower than the wild strain. When grown in an environment with hydroxychloroquine, YBR225W doubled in 191 minutes, while BY4753 doubled in 276 minutes. Surprisingly, YBR225W doubling time decreased dramatically, which means that it grew faster in the presence of hydroxychloroquine. The BY4753 strain was inhibited by hydroxychloroquine. (These doubling times and curves are the means of three experiments.)


Salt Concentration (NaCl)

NaCl-BY4735vYBR225W-Graphv2.JPG


0mM NaCl conc. BY4735 strain's doubling time: 169 minutes

0mM NaCl conc. YBR225W strain's doubling time: 224 minutes

750mM NaCl conc. BY4735 strain's doubling time: 294 minutes

750mM NaCl conc. YBR225W strain's doubling time: 226 minutes


The graph above shows the growth rate for the previously listed strains and the relative level of NaCl concentration. Knocking out the gene negatively impacted the growth rate. Comparing the YBR225W doubling times in 0mM and 750mM NaCl, there is a no effect on the growth rate. This effect has no influence on the knockout strain's (YBR225W) growth.


Caffeine Group 1

gene3vswildstrain.jpg

When adding caffeine to the YBR225W strain the growth rate had a moderate effect. The doubling time of the strains were as followed:

Doubling time of YBR225W with caffeine: 296 minutes

Doubling time of YBR225W without caffeine: 208 minutes

Doubling time of BY4735 with caffeine: -2649 minutes

Doubling time of BY4735 without caffeine: 187 minutes

The effect that the caffeine had on the YBR225W knockout strain increased the doubling time. The effect was it made the yeast grow at a slower rate.

Competative Co-culture

YBR225WCompetetiveCoCulture.jpg

These are the results of a competitive co-culture protocol. The knockout strain was grown in a culture to test fitness against a green, fluorescent wild-type strain. The percentage of analyzed cells in the culture measured was those displaying green fluorescence. In theory, this should mean if a knockout has reduced the fitness of a strain of yeast, the fluorescent wild-type strain would have a higher percentage than the knockout strain. If the knockout does not decrease fitness, they would be roughly equal. This may not be so in results. Sources of error may include contamination and human error.

The results here are not expected. It was not readily apparent this knockout strain grew quickly, so more likely than not, both tests were contaminated with an organism that grows faster than yeast and does not display a fluorescent trait like the wild-type.

Ammonium Sulfate

References

See Help:References on how to add references

  1. Conde R, et al. (2003) Screening for new yeast mutants affected in mannosylphosphorylation of cell wall mannoproteins. Yeast 20(14):1189-211 SGD PMID 14587103
  2. Giaever G, et al. (2002) Functional profiling of the Saccharomyces cerevisiae genome. Nature 418(6896):387-91 SGD PMID 12140549

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