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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

The ERG3 gene in Saccharomyces cerevisiae is required for the utilization of respiratory substrates and in heme-deficient cells.

ERG3 is the structural gene in Saccharomyces cerevisiae for the sterol delta 5 desaturase that introduces the C5 = 6 unsaturation in ergosterol biosynthesis. The ERG3 gene has been mapped on chromosome XII, 13.7 centimorgans from GAL2 toward SPT8. The essentiality of the gene is dependent on the conditions used for the cultivation of the mutants. Insertionally inactivated mutants of ERG3 fail to grow without 'sparking' levels of delta 5 sterols in heme-deficient cells, and are unable to grow on the respiratory substrates glycerol and ethanol.[1]

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