TY - JOUR U1 - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed) A1 - Schwarz, Günter A1 - Santamaria-Araujo, José Angel A1 - Wolf, Stefan A1 - Lee, Heon-Jin A1 - Adham, Ibrahim M. A1 - Gröne, Hermann-Josef A1 - Schwegler, Herbert A1 - Sass, Jörn Oliver A1 - Otte, Tanja A1 - Hänzelmann, Petra A1 - Mendel, Ralf R. A1 - Engel, Wolfgang A1 - Reiss, Jochen T1 - Rescue of lethal molybdenum cofactor deficiency by a biosynthetic precursor from Escherichia coli JF - Hum Mol Genet. (Human Molecular Genetics) N2 - Substitution therapies for orphan genetic diseases, including enzyme replacement methods, are frequently hampered by the limited availability of the required therapeutic substance. We describe the isolation of a pterin intermediate from bacteria that was successfully used for the therapy of a hitherto incurable and lethal disease. Molybdenum cofactor (Moco) deficiency is a pleiotropic genetic disorder characterized by the loss of the molybdenum-dependent enzymes sulphite oxidase, xanthine oxidoreductase and aldehyde oxidase due to mutations in Moco biosynthesis genes. An intermediate of this pathway-'precursor Z'-is more stable than the cofactor itself and has an identical structure in all phyla. Thus, it was overproduced in the bacterium Escherichia coli, purified and used to inject precursor Z-deficient knockout mice that display a phenotype which resembles that of the human deficiency state. Precursor Z-substituted mice reach adulthood and fertility. Biochemical analyses further suggest that the described treatment can lead to the alleviation of most symptoms associated with human Moco deficiency. Y1 - 2004 SN - 0964-6906 SS - 0964-6906 U6 - https://doi.org/10.1093/hmg/ddh136 DO - https://doi.org/10.1093/hmg/ddh136 PM - 15115759 VL - 13 IS - 12 SP - 1249 EP - 1255 PB - Oxford University Press ER -