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BGC0002587PKS

Ossamycin

Producing organism
Streptomyces ossamyceticus
Taxonomy
BacteriaActinomycetotaActinomycetesKitasatosporalesStreptomycetaceaeStreptomyces
Biosynthetic class
PKS (Unknown)
Total steps
19
DOI
MIBiG entry
View on MIBiG ↗
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ossamycin

Gene Cluster Map31 genes · 112,926 bp

20 kb112.9 kb visible · 112,926 bp total
Biosynthetic (core)
Biosynthetic (additional)
Regulatory
Transport
Other
Unknown
Domains
KSKetosynthase (KS)
ATAcyltransferase (AT)
DHDehydratase (DH)
EREnoylreductase (ER)
KRKetoreductase (KR)
ACPAcyl carrier protein (ACP)
ACPAcyl carrier (ACP)
TEThioesterase (TE)
DnDocking N-term
DcDocking C-term
AmTAminotransferase I/II
AmTAminotransferase V

Pathway Graphsteps arranged in biosynthetic order

19 steps · 18 edges
Step 1Load
ossA1
+Methylmalonyl-CoA
Step 18
Start
Step 2M1
ossA1
+Malonyl-CoA
Inactive: DH
Step 3M2
ossA2
+Malonyl-CoA
Step 4M3
ossA2
+Malonyl-CoA
Step 5M4
ossA3
+Malonyl-CoA
Step 6M5
ossA3
+Methylmalonyl-CoA
Step 7M6
ossA3
+Malonyl-CoA
Step 8M7
ossA4
+Isobutylmalonyl-C…
Inactive: DH
Step 9M8
ossA4
+Malonyl-CoA
Step 10M2026-09-10 00:00:00
ossA5
Iterative
Step 11M11
ossA6
+Methylmalonyl-CoA
Step 12M12
ossA7
+Malonyl-CoA
Step 13M13
ossA7
+Methylmalonyl-CoA
Step 14M14
ossA8
+Methylmalonyl-CoA
Step 15M15
ossA8
+Malonyl-CoA
Step 16TE
ossA8, (ossL, ossK, oss…
Step 17
ossO?
Step 19
ossG
Starting stepIntermediateFinal productModuleLoadingTENo modulePKS stepNRPS stepTailoring/otherScroll to pan · Wheel to zoom

Biosynthetic Reactions19 steps

StepProduct IDEnzymeModuleSubstrateProduct SMILESNotes
12587-1ossA1Loading
Methylmalonyl-CoA
O=C(O)CC
22587-2ossA1M1
2587-1;Malonyl-CoA
from: 2587-1
O[C@H](CC(O)=O)CC{'Inactive': ['DH']}
32587-3ossA2M2
2587-2;Malonyl-CoA
from: 2587-2
O[C@H](C[C@@H](O)CC(O)=O)CC
42587-4ossA2M3
2587-3;Malonyl-CoA
from: 2587-3
O[C@H](C[C@@H](O)CCCC(O)=O)CC
52587-5ossA3M4
2587-4;Malonyl-CoA
from: 2587-4
O[C@H](C[C@@H](O)CCCC(CC(O)=O)=O)CC
62587-6ossA3M5
2587-5;Methylmalonyl-CoA
from: 2587-5
O[C@H](C[C@@H](O)CCCC(C[C@@H](O)[C@H](C(O)=O)C)=O)CC
72587-7ossA3M6
2587-6;Malonyl-CoA
from: 2587-6
O[C@H](C[C@@H](O)CCCC(C[C@@H](O)[C@H]([C@H](O)CC(O)=O)C)=O)CC
82587-8ossA4M7
2587-7;Isobutylmalonyl-CoA
from: 2587-7
O[C@H](C[C@@H](O)CCCC(C[C@@H](O)[C@H]([C@H](O)CC([C@H](C(O)=O)CC(C)C)=O)C)=O)CC{'Inactive': ['DH']}
92587-9ossA4M8
2587-8;Malonyl-CoA
from: 2587-8
O[C@H](C[C@@H](O)CCCC(C[C@@H](O)[C@H]([C@H](O)CC([C@H](/C=C/C(O)=O)CC(C)C)=O)C)=O)CC
102587-10ossA5M2026-09-10 00:00:00
2587-9
from: 2587-9
O[C@H](C[C@@H](O)CCCC(C[C@@H](O)[C@H]([C@H](O)CC([C@H](/C=C/CCCCC(O)=O)CC(C)C)=O)C)=O)CC{'Iteration': [(['DH', 'KR',…
112587-11ossA6M11
2587-10;Methylmalonyl-CoA
from: 2587-10
O[C@H](C[C@@H](O)CCCC(C[C@@H](O)[C@H]([C@H](O)CC([C@H](/C=C/CCCCC[C@H](C(O)=O)C)CC(C)C)=O)C)=O)CC
122587-12ossA7M12
2587-11;Malonyl-CoA
from: 2587-11
O[C@H](C[C@@H](O)CCCC(C[C@@H](O)[C@H]([C@H](O)CC([C@H](/C=C/CCCCC[C@H]([C@@H](O)CC(O)=O)C)CC(C)C)=O)C)=O)CC
132587-13ossA7M13
2587-12;Methylmalonyl-CoA
from: 2587-12
O[C@H](C[C@@H](O)CCCC(C[C@@H](O)[C@H]([C@H](O)CC([C@H](/C=C/CCCCC[C@H]([C@@H](O)C[C@@H](O)[C@H](C)C(O)=O)C)CC(C)C)=O)C)=O)CC
142587-14ossA8M14
2587-13;Methylmalonyl-CoA
from: 2587-13
O[C@H](C[C@@H](O)CCCC(C[C@@H](O)[C@H]([C@H](O)CC([C@H](/C=C/CCCCC[C@H]([C@@H](O)C[C@@H](O)[C@H](C)[C@@H](O)[C@H](C)C(O)=O)C)CC(C)C)=O)C)=O)CC
152587-15ossA8M15
2587-14;Malonyl-CoA
from: 2587-14
O[C@H](C[C@@H](O)CCCC(C[C@@H](O)[C@H]([C@H](O)CC([C@H](/C=C/CCCCC[C@H]([C@@H](O)C[C@@H](O)[C@H](C)[C@@H](O)[C@H](C)/C=C/C(O)=O)C)CC(C)C)=O)C)=O)CC
162587-16ossA8, (ossL, ossK, ossF, ossM)TE
2587-15
from: 2587-15
C[C@H]1[C@H](O)[C@@](O)(C)/C=C/C(O[C@@H](CC(CCC[C@@H](O)C[C@]([H])(O)CC)=O)[C@H](C)[C@@H](O)C[C@]2(O)OC(C)(C)C[C@H]2/C=C/CCCCC[C@@](C)(O)[C@H](O)[C@@H](O)[C@@H]1O)=O
172587-17ossO?
2587-16
from: 2587-16
C[C@H]([C@@H](O)[C@H](O)[C@H]([C@](C)(O)CCCCC/C=C/[C@@H]1CC(C)(C)O[C@@]1(O)C2)O)[C@H](O)[C@@](O)(C)/C=C/C(O[C@@H]3[C@H](C)[C@H]2O[C@]4(CCC[C@H](C[C@@](O)([H])CC)O4)C3)=O
182587-18Start
O[C@H]1CC[C@H](N(C)C)[C@H](C)O1
192587ossG
2587-17;2587-18
from: 2587-17, 2587-18
C[C@H]([C@@H](O)[C@H](O[C@H]1CC[C@H](N(C)C)[C@H](C)O1)[C@H]([C@](C)(O)CCCCC/C=C/[C@@H]2CC(C)(C)O[C@@]2(O)C3)O)[C@H](O)[C@@](O)(C)/C=C/C(O[C@@H]4[C@H](C)[C@H]3O[C@]5(CCC[C@H](C[C@@](O)([H])CC)O5)C4)=O
Click any row to view the chemical structure · Click a module badge (M1, TE…) to view domain architecture