摘要:
The molecular characteristics and a partial amino acid sequence of an endo-.beta.-1,4-glucanase obtainable from Aspergillus aculeatus are described, as well as corresponding recombinant DNA sequences, vectors, and transformed hosts. Use of the endo-.beta.-1,4-glucanase or a pectinase preparation enriched with the endo-.beta.-1,4-glucanase for degradation or modification of plant cell walls is described.
摘要:
The present invention relates to rhamnogalacturon acetyl esterases derived from Aspergillus aculeatus and DNA Sequences encoding the enzymes. The present invention also relates to the use of rhamnogalacturon acetyl esterases for degrading modified hairy region.
摘要:
The xylanase is characterized by several partial amino acid sequences and is immunoreactive with an antibody raised against a purified xylanase derived from Humicola insolens, DSM 1800. This xylanase preparation is practically free of cellulase xylanase and is well suited for treatment of paper pulp, as a baking agent and as an additive to fodder.
摘要:
The present invention relates to rhamnogalacturonases derived from a strain of Aspergillus japonicus which (a) has a pH-optimum between 6.5 and 7.0; (b) retains at least 80% of the maximal activity throughout the pH range of 5.5-12; (c) has a temperature optimum of about 40.degree. C.; and (d) retains at least 80% of the maximal activity throughout the temperature range of 20.degree.-60.degree. C. The present invention relates to rhamnogalacturonases derived from a stain of Aspergillus aculeatus which (a) has a pH-optimum of about 5.0; (b) retains at least 80% of the maximal activity throughout the pH range of 3-6.5; (c) has a temperature optimum of about 40.degree. C.; and (d) retains at least 80% of the maximal activity throughout the temperature range of 5.degree.-50.degree. C.
摘要:
The present invention relates to rhamnogalacturonases derived from a strain of Aspergillus japonicus which (a) has a pH-optimum between 6.5 and 7.0; (b) retains at least 80% of the maximal activity throughout the pH range of 5.5-12; (c) has a temperature optimum of about 40.degree. C.; and (d) retains at least 80% of the maximal activity throughout the temperature range of 20-60.degree. C. The present invention relates to rhamnogalacturonases derived from a strain of Aspergillus aculeatus which (a) has a pH-optimum of about 5.0; (b) retains at least 80% of the maximal activity throughout the pH range of 3-6.5; (c) has a temperature optimum of about 40.degree. C.; and (d) retains at least 80% of the maximal activity throughout the temperature range of 5-50.degree. C.
摘要:
An enzyme exhibiting xylanase activity, which enzyme is immunologically reactive with an antibody raised against a purified xylanase derived from Aspergillus aculeatus, CBS 101.43. The enzyme may be used for degrading plant cell wall components e.g. in the preparation of feed, in baking, in the paper and pulp industry and in connection with separation of wheat into starch and gluten.
摘要:
A partial amino acid sequence of an endo-.beta.-1,4-glucanase obtainable by means of Aspergillus aculeatus is described, and also corresponding recombinant DNA sequences, vectors and transformed hosts. Use of the endo-.beta.- 1,4-glucanase or a pectinase preparation enriched with the endo-.beta.-1,4-glucanase for degradation or modification of plant cell walls is described.
摘要:
A process for producing ripe human growth hormone is described which comprises introducing into bacteria a recombinant DNA vector comprising a DNA sequence encoding an amino-terminal extended human growth hormone which amino-terminal extension has a negatively charged amino acid sequence and has an even number of amino acids, growing the bacteria such that the amino-terminal extended human growth is expressed, separating the amino-terminal extended human grown hormone from contaminants, cleaving the amino-terminal extension with dipeptidyl aminopeptidase I to obtain ripe human growth hormone and isolating the ripe human growth hormone produced.
摘要:
The nucleic acid sequence encoding a pectin lyase from Aspergillus aculeatus, CBS 101.43 and the corresponding amino acid sequence are disclosed. The nucleic acid is used to transform a host cell which is utilized in a method to make the pectin lyase. The catalytic properties and stability characteristics of the enzyme are reported. The enzyme is useful for the degradation of plant cell wall components.