Cell-free biosynthesis of discadenine, a spore germination inhibitor of <i>Dictyostelium discoideum</i>
作者:Yoichi Taya、Yoshimasa Tanaka、Susumu Nishimura
DOI:10.1016/0014-5793(78)80247-6
日期:1978.5.15
The cellular slime mold Dictyostelium discoideum produces a factor which inhibits the germination of its own spore. This factor has been purified and shown to be an adenine derivative with an isopentenyl group in the N6-position and a 3-amino-3-carboxypropyl group in the 3-position [1,2]. The factor, named discadenine, showed not only spore germination inhibitor activity, but also potent cytokinin
细胞粘菌 Dictyostelium discoideum 产生一种抑制其自身孢子萌发的因子。该因子已被纯化并证明是一种腺嘌呤衍生物,在 N6 位具有异戊烯基,在 3 位具有 3-氨基-3-羧丙基 [1,2]。正如其结构所预期的那样,该因子被命名为迪卡腺嘌呤,不仅表现出抑制孢子萌发的活性,还表现出有效的细胞分裂素活性 [3]。由于discadenine 独特的结构和有趣的生理活性,人们试图阐明其生物合成的机制。在这里,我们报告了 D 细胞提取物的无细胞合成迪卡腺嘌呤。椎间盘。通过从 S-腺苷甲硫氨酸 (SAM) 转移 3-氨基-3 羧丙基基团,由 N 6 -(A2-异戊烯基)腺嘌呤 0~Ade) 合成 Discadenine。