A mutation in ribose-5-phosphate isomerase (RPIA), an enzyme of the pentose phosphate pathway that normally mediates the reversible interconversion of D-ribulose 5-phosphate and ribose 5-phosphate, has been associated with a slowly progressive leukoencephalopathy (Wamelink et al. 2008).
Wamelink, MM, Struys, EA, Jakobs, C
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