Table 2. Summary of secondary metabolites identified in extracts of P. arizonense and predicted biosynthetic gene clusters.
Detected compound | Most similar biosynthetic gene cluster | Orthologous genesb | Avg. similarity [% ID/% coverage] |
---|---|---|---|
Austalide B, Ja, K, L, novel isomers C25H32O8 and C26H34O9 | Cluster 4: Similarity to a mycophenolic acid cluster58 | 3/8 | 59/96 |
6-Farnesyl-5-7-dihydroxy-4-methylphthalidea | |||
Pyripyropene Aa, E, F, O | Cluster 5: Similarity to a pyripyropene cluster45 | 7/9 | 79/99 |
Tryptoquivaline Ca or 27-epi-Tryptoquivalinea, G or L, I, M or 27-epi-Nortryptoquivaline | Cluster 3: Similarity to a tryptoquialanine cluster67 | 13/13 | 74/96 |
Fumagillina | Cluster 34: Similarity to an intertwined fumagillin/pseurotin cluster71,95 | 16/16 | 82/95 |
Pseurotin Aa | |||
Xanthoepocin | Cluster 2: Similarity to an aurofusarin cluster79,80 | 7/11 | 49/96 |
Curvulinic acida | n.d. | n.a. | n.a. |
n.d. | Cluster 28: Similarity to an acetylaranotin cluster83 | 9/9 | 68/91 |
All compounds were found in extract of P. arizonense IBT 12295, 12287 and 12289. aconfirmed with a standard.
bNumber of genes in the predicted P. arizonense gene cluster which are orthologous (more than 30% identity and 50% coverage) to a gene in the reference gene cluster. For detailed information about the detected gene clusters see Supplementary Data S1 and S2.