| 摘要 |
The invention concerns the new strain Cytophaga drobachiensis filed in the DSMZ Collection (Deutsche Sammlung von Mikroorganismen und Zellkulturen Gmb-H) on May 8 1998 under number DSM 12170, the gene agaA coding for a beta -agarase and having the SEQ ID NO:1, the gene agaB coding for a beta -agarase and having the SEQ ID NO:3, said genes coding for a DSM 12170 Cytophaga drobachiensis beta -agarase, and the particular nucleic acid sequence of the gene agaA coding for a particular AgaA' peptide fragment which has preserved beta -agarase activity, and having the SEQ ID NO:5, and the DSM 12170 C. drobachiensis AgaA protein having the SEQ ID NO:2, the DSM 12170 C. drobachiensis having the SEQ ID NO:4 and said DSM 12170 C. drobachiensis AgaA' peptide fragment having the SEQ ID NO:6. The invention is applicable to agar biodegradation.
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