Cloning and sequencing of an aspergillus niger gene coding for beta-fructufuranosidase

A 1.7 kb DNA fragment encoding beta-D-fructofuranosidase in a strain of Aspergillus niger was amplified by PCR, inserted into a 4.4 kb cloning vector and sequenced. Comparison of this sequence with suc1 (GenBank) showed that this invertase gene had suffered a single base deletion followed by a single base insertion 49bp further down-stream with the result that 16 amino acids are coded by a different reading frame

Random wavelet transforms, algebraic geometric coding, and their applications in signal compression and de-noising

The concepts of random wavelet transforms and discrete random wavelet transforms are introduced. It is shown that these transforms can lead to simultaneous compression and de-noising of signals that have been corrupted with fractional noises. Potential applications of algebraic geometric coding theory to encode the ensuing data are also discussed