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Synthesis of C11-Desmethoxy Soraphen A_1α: A natural product analog that inhibits acetyl-CoA carboxylase.

ABSTRACT: A synthesis of C11-desmethoxy soraphen A_1α is described that proceeds in just 14 steps from readily available starting materials. This natural product analog was identified as a target of interest in a program aimed at identifying novel natural product-inspired inhibitors of acetyl-CoA carboxylase (ACC) as potential anticancer therapeutics. While describing the most efficient synthesis of a soraphen A_1α analog (total syntheses of the natural product have been reported that proceed in 25 to ≥40 linear steps), we also present data supporting the conclusion that C11-heteroatom functionality is a beneficial but unnecessary structural characteristic of soraphen A_1α analogs for inhibiting ACC.

SUBMITTER: Canterbury DP

PROVIDER: S-EPMC3951358 | biostudies-literature | 2013 Dec

REPOSITORIES: biostudies-literature

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Synthesis of C11-Desmethoxy Soraphen A1α: A natural product analog that inhibits acetyl-CoA carboxylase.

Canterbury Daniel P DP Scott Kristen E N KE Kubo Ozora O Jansen Rolf R Cleveland John L JL Micalizio Glenn C GC

ACS medicinal chemistry letters 20131201 12

A synthesis of C11-desmethoxy soraphen A1α is described that proceeds in just 14 steps from readily available starting materials. This natural product analog was identified as a target of interest in a program aimed at identifying novel natural product-inspired inhibitors of acetyl-CoA carboxylase (ACC) as potential anticancer therapeutics. While describing the most efficient synthesis of a soraphen A1α analog (total syntheses of the natural product have been reported that ...[more]

PMID: 24639892

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Project description:BackgroundPolyadenylation is a crucial process that terminates mRNA molecules at their 3'-ends. It has been observed that alternative polyadenylation (APA) can generate multiple transcripts from a single gene locus, each with different polyadenylation sites (PASs). This leads to the formation of several 3' untranslated regions (UTRs) that vary in length and composition. APA has a significant impact on approximately 60-70% of eukaryotic genes and has far-reaching implications for cell proliferation, differentiation, and tumorigenesis.ResultsIn this study, we conducted long-read, single-molecule sequencing of mRNA from peanut seeds. Our findings revealed that over half of all peanut genes possess over two PASs, with older developing seeds containing more PASs. This suggesting that the PAS exhibits high tissue specificity and plays a crucial role in peanut seed maturation. For the peanut acetyl-CoA carboxylase A1 (AhACCA1) gene, we discovered four 3' UTRs referred to UTR1-4. RT-PCR analysis showed that UTR1-containing transcripts are predominantly expressed in roots, leaves, and early developing seeds. Transcripts containing UTR2/3 accumulated mainly in roots, flowers, and seeds, while those carrying UTR4 were constitutively expressed. In Nicotiana benthamiana leaves, we transiently expressed all four UTRs, revealing that each UTR impacted protein abundance but not subcellular location. For functional validation, we introduced each UTR into yeast cells and found UTR2 enhanced AhACCA1 expression compared to a yeast transcription terminator, whereas UTR3 did not. Furthermore, we determined ACC gene structures in seven plant species and identified 51 PASs for 15 ACC genes across four plant species, confirming that APA of the ACC gene family is universal phenomenon in plants.ConclusionOur data demonstrate that APA is widespread in peanut seeds and plays vital roles in peanut seed maturation. We have identified four 3' UTRs for AhACCA1 gene, each showing distinct tissue-specific expression patterns. Through subcellular location experiment and yeast transformation test, we have determined that UTR2 has a stronger impact on gene expression regulation compared to the other three UTRs.

Dataset Information

Synthesis of C11-Desmethoxy Soraphen A_1α: A natural product analog that inhibits acetyl-CoA carboxylase.

Publications

Synthesis of C11-Desmethoxy Soraphen A<sub>1α</sub>: A natural product analog that inhibits acetyl-CoA carboxylase.

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