Soil metagenome
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA662476 | ENA |
REPOSITORIES: ENA
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2018-11-21 | PXD011739 | Pride
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Project description:Previous research has linked perceived social isolation (loneliness) to reduced antiviral immunity, but the immunologic effects of the objective social isolation imposed by pandemic “shelter in place” (SIP) policies is unknown. We assessed the immunologic impact of SIP by relocating 21 adult male rhesus macaques from 2000 sq-m field cage communities of 70-132 other macaques to 2 wks of individual housing in indoor shelters. SIP was associated with down-regulation of Type I interferon (IFN) antiviral gene expression. This effect emerged within the first 48 hrs of SIP, persisted for at least 2 wks, and abated within 4 wks of return to social housing. A subsequent round of SIP in the presence of a novel juvenile macaque abrogated this effect. These results identify a significant adverse effect of SIP social isolation on antiviral immune regulation in circulating immune cells and they suggest a potential behavioral strategy for ameliorating such effects by promoting pro-social engagement during SIP.
2021-07-28 | GSE174065 | GEO
Project description:The metagenomes of complex microbial communities are rich sources of novel biocatalysts. We exploited the metagenome of a mixed microbial population for isolation of more than 15 different genes encoding novel biocatalysts by using a combined cultivation and direct cloning strategy. A 16S rRNA sequence analysis revealed the presence of hitherto uncultured microbes closely related to the genera Pseudomonas, Agrobacterium, Xanthomonas, Microbulbifer, and Janthinobacterium. Total genomic DNA from this bacterial community was used to construct cosmid DNA libraries, which were functionally searched for novel enzymes of biotechnological value. Our searches in combination with cosmid sequencing resulted in identification of four clones encoding 12 putative agarase genes, most of which were organized in clusters consisting of two or three genes. Interestingly, nine of these agarase genes probably originated from gene duplications. Furthermore, we identified by DNA sequencing several other biocatalyst-encoding genes, including genes encoding a putative stereoselective amidase (amiA), two cellulases (gnuB and uvs080), an alpha-amylase (amyA), a 1,4-alpha-glucan branching enzyme (amyB), and two pectate lyases (pelA and uvs119). Also, a conserved cluster of two lipase genes was identified, which was linked to genes encoding a type I secretion system. The novel gene aguB was overexpressed in Escherichia coli, and the enzyme activities were determined. Finally, we describe more than 162 kb of DNA sequence that provides a strong platform for further characterization of this microbial consortium.
| S-EPMC201203 | biostudies-literature