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发明授权
CN106701708B 7α-羟基类固醇脱氢酶基因Y1-a-1 有权

7α-羟基类固醇脱氢酶基因Y1-a-1
摘要：
本发明涉及羟基类固醇脱氢酶，具体涉及一种7α‑羟基类固醇脱氢酶基因Y1‑a‑1。该基因的核苷酸序列如SEQ ID NO.2所示，编码一种7α‑羟基类固醇脱氢酶，其氨基酸序列如SEQ ID NO.1所示，能够催化鹅去氧胆酸(CDCA)、牛磺鹅去氧胆酸(TCDCA)生成7‑酮石胆酸(7K‑LCA)、牛磺7‑酮石胆酸(T7K‑LCA)，对CDCA或TCDCA的催化活性为现有撒丁岛梭菌7α‑HSDH的2倍多，具有很大的工业应用价值。
摘要（英）：

The invention relates to hydroxysteroid dehydrogenase, in particular to a new 7alpha-hydroxysteroid dehydrogenase gene Y1-a-1. The nucleotide sequence of the gene is as shown in SEQ ID NO. 2. New 7alpha-hydroxysteroid dehydrogenase is coded, and the amino acid sequence of new 7alpha-hydroxysteroid dehydrogenase is as shown in SEQ ID NO.1; new 7alpha-hydroxysteroid dehydrogenase can catalyze chenodeoxycholic acid (CDCA) and taurochenodeoxycholic acid (TCDCA) to generate 7-ketone lithocholic acid (7K-LCA) and tauro 7-ketone lithocholic acid (T7K-LCA); the catalysis activity for CDCA or TCDCA is more than two times that of existing Sardinia clostridium 7alpha-HSDH, and the new 7alpha-hydroxysteroid dehydrogenase gene Y1-a-1 has an extremely large industrial application value.

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