Fig. 1From: Engineering a filamentous fungus for l-rhamnose extractionDeletion of rha1 and lra3 genes: (a) Deletion cassette for disruption of the catabolic l-rhamnose pathway in A. niger (b). The enzymes in the pathway are RHA1 (l-rhamnose dehydrogenase), LRA2 (l-rhamnono-1,4-lactonase), LRA3 (l-rhamnonate dehydratase) and LRA4 (2-keto-3-deoxy-l-rhamnonate aldolase)Back to article page