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| SCO6073 | Putative cyclase; Tow-domain protein where the N-terminal domain catalyzes the cyclization of farnesyl diphosphate (FPP) to a 85:15 mixture of the sesquiterpene alcohol germacradienol and the sesquiterpene hydrocarbon germacrene D. The C-terminal domain partially converts the germacradienol formed into geosmin, the characteristic odoriferous ('earthy aroma') constituent of Streptomyces species. (726 aa) | ||||
| SCO5222 | Putative lyase; Catalyzes the cyclization of farnesyl diphosphate (FPP) to the sesquiterpene epi-isozizaene. (361 aa) | ||||
| SCO5223 | Putative cytochrome P450; Involved in the biosynthesis of the sesquiterpenoid antibiotic albaflavenone. Catalyzes the two-step allylic oxidation of epi-isozizaene to albaflavenone. First carries out a non-stereo- specific oxidation of epi-isozizaene to give a mixture of the albaflavenol epimers ((5R)-albaflavenol and (5S)-albaflavenol), each of which can serve as substrate for the second oxidation to yield albaflavenone. This is quite different from most other P450s which catalyze regio- and stereospecific oxidation. Displays also a farnesene synthase activity with farnesyl diphosphate [...] (461 aa) | ||||
| SCO6764 | SC6A5.13, probable squalene-hopene cyclase, len: 680 aa; similar to many e.g. SW:SQHC_ALIAC squalene-hopene cyclase A key enzyme in triterpenoid metabolism in Bacillus acidocaldarius (630 aa) fasta scores; opt: 2153, z-score: 2386.3, E(): 0, (51.8% identity in 620 aa overlap). Contains two Pfam matches to entry PF00432 prenyltrans, Prenyltransferase and squalene oxidase repeats and a Prosite match to PS01074 Terpene synthases signature. (680 aa) | ||||