YGL138C

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Systematic name	YGL138C
Gene name
Aliases
Feature type	ORF, Uncharacterized
Coordinates	Chr VII:249531..248494
Primary SGDID	S000003106

Description of YGL138C: Putative protein of unknown function; has no significant sequence similarity to any known protein




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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

In a BY4735 background, knocking out YGL138C does not seem to have much effect on the strain's growth rate. In this assay, the BY4735 strain's doubling time was 162 minutes, while the YGL138C knock-out strain's doubling time was 140 minutes. (These doubling times are the means of three experiments.)

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Salt Concentration (NaCl)

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

0mM NaCl conc. YGL138C strain's doubling time: 139 minutes

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

750mM NaCl conc. YGL138C strain's doubling time: 205 minutes

The graph above shows the growth rate for the previously listed strains and the relative level of NaCl concentration. Knocking out the gene positively influenced the growth rate. Comparing the YGL138C doubling times in 0mM and 750mM NaCl, there is a moderate effect on the growth rate. This effect negatively impacts the knockout strain's (YGL138C) growth rate.

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Caffeine Group 1

When adding caffeine to the YGL138C strain, the effect it had on the growth rate was significant. The doubling times are as follows:

Doubling time of YGL138C with caffeine: 309 minutes

Doubling time of YGL138C without caffeine: 140 minutes

Doubling time of BY4735 with caffeine: -2649 minutes

Doubling time of BY4735 without caffeine: 187 minutes

When adding caffeine to this strain knockout, the growth rate slowed down a great deal.

Competative Co-culture

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 expected in theory. The YGL138C knockout strain had a significant disadvantage and the fluorescent wild-type strain dominated the given result.

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