Deoxyhypusine/hypusine formation on a 21,000-dalton cellular protein in a Neurospora crassa mutant in vivo and in vitro.

Abstract excerpt

Hypusine formation on an 18,000-dalton cellular protein is a unique spermidine-dependent, post-translational modification that appears to be ubiquitous in mammalian cells. To determine whether this modification also exists in lower eukaryotes, we examined possible labeling in vitro and in vivo of cellular protein(s) by [3H]spermidine in a mutant strain of Neurospora crassa (arge-12 ota aga) in which ornithine and...

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