Characterization of NucPNP and NucV involved in the early steps of nucleocidin biosynthesis in Streptomyces calvus
| Autor: | Wenjuan Ji, James R. Ketudat Cairns, Surayut Kluaiphanngam, Qi Zhang, Anyanee Kamkaew, Siriwalee Siriwibool, Rung-Yi Lai, Utumporn Ngivprom |
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| Rok vydání: | 2021 |
| Předmět: |
Purine
010405 organic chemistry Chemistry General Chemical Engineering Adenine phosphoribosyltransferase Purine nucleoside phosphorylase General Chemistry 010402 general chemistry 01 natural sciences Adenosine 0104 chemical sciences chemistry.chemical_compound Biochemistry Biosynthesis Streptomyces calvus Gene cluster medicine Nucleoside medicine.drug |
| Zdroj: | RSC Advances. 11:3510-3515 |
| ISSN: | 2046-2069 |
| DOI: | 10.1039/d0ra10878b |
| Popis: | Nucleocidin 1 produced by Streptomyces calvus is one of five characterized natural products containing fluorine. It was discovered in 1956, but its biosynthesis is not yet completely resolved. Recently, the biosynthetic gene cluster of 1 was identified. The nucPNP gene, which was initially annotated as orf206 and encodes a putative purine nucleoside phosphorylase, is essential for nucleocidin production. In this study, we performed in vitro assays and showed NucPNP produced adenine 3 from methylthioadenosine (MTA) 2 and adenosine 4. We also showed the downstream enzyme, NucV annotated as adenine phosphoribosyltransferase (APRT), catalyzes AMP formation from adenine 3 and 5-phospho-α-D-ribose-1-diphosphate (PRPP) 5. However, the catalytic efficiency of NucV was much slower than its homolog ScAPRT involved in the biosynthesis of canonical purine nucleoside in the same strain. These results provide new insights in nucleocidin biosynthesis and could guide future research on organofluorine formation. |
| Databáze: | OpenAIRE |
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