Genes encoding proteins for glucose-6-phosphate dehydrogenase

The invention relates to an isolated nucleic acid molecule coding for a polypeptide comprising the amino acid sequence which is respectively referred to in table 1/column 2. Said nucleic acid molecule which is in the amino acid position indicated in table 1/column 4 codes for a different proteinogenous amino acid to the one which is indicated on the same line in table 1/column 5.