Aims: Using substrate-induced gene-expression (SIGEX) screening on subseafloor sediment samples from the Nankai Trough, Japan, we identified gene fragments showing an induction response to metal ions.
Methods And Results: Environmental DNA libraries in Escherichia coli host cells were tested by the addition of metal ions (Ni , Co , Ga or Mo ), followed by cell sorting of clones exhibiting green fluorescence upon co-expression of green fluorescence protein downstream of the inserted gene fragments. One clone displayed Ni -specific induction, three clones displayed Ga -specific induction and three clones displayed an induction response to multiple metal ions. DNA sequence analysis showed that a variety of genes showed induction responses in the screened clones.
Conclusions: Using the SIGEX approach, we retrieved gene fragments with no previously identified response to metal ions that exhibited metal-ion-induced expression. This method has the potential to promote exploration of gene function through gene-induction response.
Significance And Impact Of The Study: We successfully linked gene-induction response with sequence information for gene fragments of previously unknown function. The SIGEX-based approach exhibited the potential to identify genetic function in unknown gene pools from the deep subseafloor biosphere, as well as novel genetic components for future biotechnological applications.
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http://dx.doi.org/10.1111/jam.14061 | DOI Listing |
Front Plant Sci
December 2024
Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, College of Life Sciences, Taizhou University, Taizhou, China.
var. is a special berry plant of in the Rosaceae family. Its leaves contain high-sweetness, low-calorie, and non-toxic sweet ingredients, known as rubusoside.
View Article and Find Full Text PDFJ Res Med Sci
November 2024
Department of Medical Laboratory Technology, University of Tabuk, Tabuk, Saudi Arabia.
Background: The study aimed to detect the association between insulin-like growth factor 2 mRNA-binding protein 2 (IGF2BP2) and interleukin-6 (IL-6) polymorphisms among type 2 diabetes mellitus (T2DM).
Materials And Methods: This study involved 500 individuals; 250 obese DM cases and 250 healthy controls. The polymerase chain reaction restriction fragment length polymorphism was used to identify the genotype of the IGF2BP2 gene for the small nucleoproteins rs4402960 (G>T) and small nucleoproteins rs800795 (G>C).
Taurine and betaine are important nutrients in and have many important biological properties. To investigate the characteristics of taurine and betaine contents and identify SNPs associated with traits in the , we cloned the full-length cDNA of key genes in taurine and betaine (unpublished data) metabolism, determined taurine and betaine content and gene expression in different tissues and months of specimen collection, and developed SNPs in the gene coding region. We cloned the full-length cDNA of cysteine dioxygenase ( ) and cysteine sulfite decarboxylase ( ), which are key genes involved in taurine metabolism in , and found that betaine and taurine contents and the expression of key genes were regulated by seawater salinity.
View Article and Find Full Text PDFEpitranscriptomic modifications on RNA play critical roles in stability, processing, and function, partly by influencing interactions with RNA-binding proteins and receptors. The role of post-transcriptional RNA modifications on cell-free non-coding small RNA (sRNA) remains poorly understood in disease contexts. High-density lipoproteins (HDL), which transport sRNAs, can lose their beneficial properties in atherosclerosis cardiovascular disease (ASCVD).
View Article and Find Full Text PDFConnections between the mechanical properties of DNA and biological functions have been speculative due to the lack of methods to measure or predict DNA mechanics at scale. Recently, a proxy for DNA mechanics, cyclizability, was measured by loop-seq and enabled genome-scale investigation of DNA mechanics. Here, we use this dataset to build a computational model predicting bias-corrected intrinsic cyclizability, with near-perfect accuracy, solely based on DNA sequence.
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