Project description:MCF-7 cell lysate was fractionated using a 10% GELFrEE cartridge. Each fraction was analyzed by 21 T FT-ICR at the National High Magnetic Field Laboratory.
2020-08-19 | MSV000085978 | MassIVE
Project description:13C labeled functional microorganisms in Periphyton
| PRJNA853165 | ENA
Project description:Hg methylators in 13C-labeled OM DNA-SIP experiment
Project description:The production of bioactive metabolites is increasingly recognized as an important function of host-associated bacteria. An example is defensive symbiosis that might account for much of the chemical richness of marine invertebrates including sponges (Porifera), 1 of the oldest metazoans. However, most bacterial members of sponge microbiomes have not been cultivated or sequenced, and therefore, remain unrecognized. Unequivocally linking metabolic functions to a cellular source in sponge microbiomes is, therefore, a challenge. Here, we report an analysis pipeline of microfluidic encapsulation, Raman microscopy, and integrated digital genomics (MERMAID) for an efficient identification of uncultivated producers. We applied this method to the chemically rich bacteriosponge (sponge that hosts a rich bacterial community) Theonella swinhoei, previously shown to contain 'Entotheonella' symbionts that produce most of the bioactive substances isolated from the sponge. As an exception, the antifungal aurantosides had remained unassigned to a source. Raman-guided single-bacterial analysis and sequencing revealed a cryptic, distinct multiproducer, 'Candidatus Poriflexus aureus' from a new Chloroflexi lineage as the aurantoside producer. Its exceptionally large genome contains numerous biosynthetic loci and suggested an even higher chemical richness of this sponge than previously appreciated. This study highlights the importance of complementary technologies to uncover microbiome functions, reveals remarkable parallels between distantly related symbionts of the same host, and adds functional support for diverse chemically prolific lineages being present in microbial dark matter.
Project description:Infertility or subfertility is a widespread problem with approximately 25% of couples seeking medical help. For about half the cases it lies in the male partner. Male infertility is caused by problems that affect sperm production, maturation and/or transport. In this study the role played by the epididymis in the post-testicular maturation of spermatozoa during its transit through this organ was investigated using FT-ICR imaging mass spectrometry of metabolites and the FDR-controlled metabolite annotation platform MetaSpace for high-resolution imaging mass spectrometry. This study together with MTBLS313 provides the accompanying data for FDR-controlled metabolite annotation for high-resolution imaging mass spectrometry.