Project description:Propionate accumulation is an important bottleneck for anaerobic degradation of organic matter. We hypothesized that propionate conversion by a novel coculture of Syntrophobacter fumaroxidans and Geobacter sulfurreducens can be an alternative strategy for propionate oxidation coupled to Fe(III) reduction. In this study, we successfully cocultured S. fumaroxidans and G. sulfurreducens on propionate and Fe(III). Proteomic analyses of this coculture provided insights into the underlying mechanisms of propionate metabolism pathway and interspecies electron transfer mechanism. Our study can be further useful in understanding syntrophic propionate degradation in bioelectrochemical and anaerobic digestion systems.
Project description:We report the comparison of transcript expression of Fe-sufficient roots of OsIMA overexpression lines IMA1OX-4, IMA2OX-1, OsIMA knockdown lines IMA1i-2, IMA2i-3, and corresponding NT, as well as Fe-deficient roots of NT, by RNA-Seq.
Project description:Transcriptional profiling of Yellow stripe 1 (ys1) and ys3 mutants. ys1 and ys3 are recessive mutants of maize (Zea mays L.) that result in symptoms typical of Fe deficiency, i.e., interveinal chlorosis of the leaves. The objective of the present work was to identify the genes involved in the ys1 and ys3 phenotypes, so as to extend our understanding of Fe homeostasis in maize. Root or shoot of WT vs. ys1 or ys3 mutants under Fe sufficient or Fe deficient conditions respectively.
Project description:qPCR gene expression profiling of Yellow stripe 1 (ys1) and ys3 mutants. ys1 and ys3 are recessive mutants of maize (Zea mays L.) that result in symptoms typical of Fe deficiency, i.e., interveinal chlorosis of the leaves. The objective of the present work was to identify the genes involved in the ys1 and ys3 phenotypes, so as to extend our understanding of Fe homeostasis in maize. Root or shoot of WT vs. ys1 or ys3 mutants under Fe sufficient or Fe deficient conditions respectively.
Project description:The 2-OG-Fe(II) dioxygenase family are critical for cellular adaptation to changes in oxygen concentration. We found that cells with OGFOD1 gene silencing in this family showed resistance to cell death under ischemia, and cDNA microarray analysis of OGFOD1 knockout human cells revealed downregulation of ATPAF1. Although reintroduction of the OGFOD1 wild-type gene to OGFOD1 KO cells restored ATPAF1 mRNA levels, the catalytically inactive OGFOD1 mutant did not.
Project description:The 2-OG-Fe(II) dioxygenase family are critical for cellular adaptation to changes in oxygen concentration. We found that cells with OGFOD1 gene silencing in this family showed resistance to cell death under ischemia, and cDNA microarray analysis of OGFOD1 knockout human cells revealed downregulation of ATPAF1. Although reintroduction of the OGFOD1 wild-type gene to OGFOD1 KO cells restored ATPAF1 mRNA levels, the catalytically inactive OGFOD1 mutant did not. wild-type vs. OGFOD1 knock-out cells
Project description:The human ZRT/IRT-like protein 8 (ZIP8), encoded by the solute carrier family 39 member 8 gene SLC39A8, is a metal cation symporter located mainly on the cell membrane. ZIP8 is well-known for its role in transporting divalent metal ions into the cells – these ions include several essential micronutrients (e.g., iron [Fe], manganese [Mn], and zinc [Zn]) and non-essential toxic heavy metal cadmium (Cd). In the current project, ZIP8 gene in the human cervical cancer HeLa cell line was knockout (KO) using the CRISPR/Cas9 genome editing technology. Then, the proteomes of ZIP8-KO HeLa cell line and HeLa parental cell line (with wildtype ZIP8 gene sequence) were quantified using iTRAQ and LC-MS/MS.
Project description:To study the regulation of Lepr on transcriptome in WT and Lepr KO AMs under resting state and after LPS stimulation, Lepr-sufficient (Lepr+/+, Lyz2-Cre) and Lepr-deficient (Leprfl/fl, Lyz2-Cre) alveolar macrophages (AMs) were isolated by collecting BALF. Lipopolysaccharide (LPS) was added in vitro for 1h or cells were left untreated. Total RNA was extracted for deep sequencing. Gene expression in WT and Lepr KO cells were analyzed.