Fig. 3 in Polyketide-derived macrobrevins from marine macroalga-associated Bacillus amyloliquefaciens as promising antibacterial agents against pathogens causing nosocomial infections

Fig. 3. (A) Biosynthetic gene cluster coding for biosynthesis of macrobrevin analogues in B. amyloliquefaciens showing 46% similarity with macrobrevin biosynthetic gene cluster BGC0001470 (as elucidated by Known-Cluster-Blast prediction, the gene cluster also had 32% similarity with aurantinine and bacillaene with 100% similarity), (B) organization of genes in macrobrevin biosynthetic gene cluster of Brevibacillus sp. (C) Domain organization of the modules of trans-AT PKS gene cluster coding for bacillaene, which is 46% similar to macrobrevin biosynthetic gene cluster is shown. (D) The proposed functions of genes (1–16) contained in the biosynthetic gene cluster has been listed out, and are described as: (1) Biosynthetic additional (smcogs) SMCOG1170: metallo-β-lactamase family protein (score: 203; E-value: 5.4e-62); (2) biosynthetic trans-AT-PKS:PKS_AT biosynthetic additional SMCOG1021: malonyl CoA-acyl carrier protein transacylase (score: 400.8; E-value: 1.8e-121); (3) biosynthetic trans AT-PKS:PKS_AT biosynthetic additional SMCOG1021: malonyl CoA-acyl carrier protein transacylase (score: 232.8; E-value: 1.5e-70); (4) biosynthetic trans-AT-PKS:PKS_AT biosynthetic additional SMCOG1021:malonyl CoA-acyl carrier protein transacylase (score: 481.1; E-value: 9e-146); (5) biosynthetic additional PP-binding; (6) biosynthetic T3PKS:Chal_sti_synt_N biosynthetic additional SMCOG1043:hydroxymethylglutaryl-CoA synthase (score: 496.9; E-value: 6.5e-151); (7) biosynthetic additional SMCOG1023: enoyl-CoA hydratase (score: 228.4; E-value: 1.3e-69); (8) biosynthetic trans-AT-PKS:PP-binding biosynthetic trans-AT-PKS:tra_KS-biosynthetic trans AT-PKS:ATd-biosynthetic NRPS:AMP-binding biosynthetic-NRPS: condensation biosynthetic additional adh_short biosynthetic additional SMCOG1127: condensation domain-containing protein (score: 295.3; E-value: 1.6e-89); (9) biosynthetic additional-tra_KS biosyntheticadditional SMCOG1022: β-ketoacyl synthase (score: 160.9; E-value: 8.3e-49); (10) biosynthetic-trans-AT-PKS:PP-binding-biosynthetic-trans-AT-PKS:tra_KS-biosynthetic-trans-AT-KS:ATd-biosynthetic-additional-adh_short-biosynthetic-additional-SMCOG1001:short-chain-dehydrogenase/reductase SDR (score: 48.7; E-value: 1.2e-14); (11) biosynthetic-trans-AT-PKS:PP-binding-biosynthetic-trans-AT-PKS:tra_KS-biosynthetic-trans-AT-PKS:ATd-biosynthetic-additional-adh_short-biosynthetic-additional SMCOG1093: β-ketoacyl synthase (score: 73.2; E-value: 2.8e-22); (12) biosynthetic trans AT-PKS: PP-binding-biosynthetic-trans-AT-PKS:tra_KSbiosynthetic-trans-AT-PKS:ATd-biosynthetic-additional-adh biosynthetic-additional SMCOG1022: β-ketoacyl synthase (score: 222.6; E-value: 1.5e-67); (13) biosynthetic-additional-condensation biosynthetic-additional SMCOG1127:condensation domain-containing protein (score: 196.8; E-value: 1.3e-59); (14) biosynthetic-trans-AT-PKS:PP-binding-biosynthetic-trans-AT-PKS:tra_KS-biosynthetic-trans-AT-PKS:ATd-biosynthetic-NRPS-like:AMP-binding-biosynthetic-NRPS-like:PPbinding-biosynthetic-additional adh_short-biosynthetic-additional SMCOG1002: AMP-dependent synthetase and ligase (score: 373.7; E-value: 1.9e-113); (15) biosynthetic-additional-PP-binding-biosynthetic-additional-tra_KS-biosynthetic-additional MCOG1022: β-ketoacyl (score: 73.2; E-value: 2.8e-22); (16) biosynthetictrans-AT-PKS-like:tra_KS-biosynthetic-trans-AT-PKS-like:ATd-biosynthetic-additional-PP-binding-biosynthetic-additional SMCOG1022: β-ketoacyl synthase (score: 207.7; E-value: 5.1e-63).Published as part of Chakraborty, Kajal, Kizhakkekalam, Vinaya Kizhakkepatt & Joy, Minju, 2022, Polyketide-derived macrobrevins from marine macroalga-associated Bacillus amyloliquefaciens as promising antibacterial agents against pathogens causing nosocomial infections, pp. 1-13 in Phytochemistry (112983) 193 on page 8, DOI: 10.1016/j.phytochem.2021.112983, http://zenodo.org/record/823515