Deletion of LAC1 the homolog of LAG1 [9872981] has no effect on replicative lifespan in strain W303R and PSY316 [N. Bishop, G. Liszt, and L. Guarente, unpublished]. LAC1 null mutant has no obvious growth defect [10198056], but is synthetically lethal with LAG1 mutation [9872981].
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