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SURF1 is an assembly factor of mitochondrial complex IV, and its mutations are the primary cause of Leigh syndrome in infants. To date, over 100 SURF1 mutations have been reported worldwide, but the spectrum of the SURF1 mutations in China remains unclear. Here, using next-generation sequencing targeting mitochondrial protein-coding sequences, we sequenced 178 patients suspected to have mitochondrial...
Previous studies have shown that high levels of PLK1 are expressed in HCC, and PLK1 inhibitors are being tested in clinical trials. However, the mechanisms, which regulate PLK1 expression in HCC, have not been clarified. Here, we show that induction of let-7b over-expression inhibits the PLK1-regulated luciferase activity in HEK-293T cells, and decreases the levels of PLK1 expression in HCC cells...
Autophagy is an evolutionary conserved intracellular degradation/recycling system that is essential for cellular homeostasis. Dysregulation of this process leads to a number of disorders, including pulmonary fibrosis. However, the genetic association between singe nucleotide polymorphisms of autophagy related genes (ATGs) and the risk of coal workers' pneumoconiosis has not been reported yet. Total...
Flatfishes (Pleuronectiformes) exhibit different types of large-scale gene rearrangements. In the present study, the mitochondrial (mt) genome (18,369bp) of a tonguefish, Cynoglossus trigrammus, was determined using de novo mitochondrion genome sequencing. Compared with other flatfishes, the mt genome of C. trigrammus revealed distinct mitogenome architectures that primarily included two striking...
The underlying molecular pathogenesis of osteosarcoma remains poorly understood. The transcription factor MEF2D promotes the survival of various types of cells and functions as an oncogene in liver cancer. However, its potential contribution to osteosarcoma has not been explored. In this study, we investigated MEF2D expression and function in osteosarcoma, finding that MEF2D elevation in osteosarcoma...
In this study, the complete mitochondrial genome of Macropodus opercularis was sequenced using Illumina-based de novo transcriptome technology and annotated using bioinformatic tools. The circular mitochondrial genome was 16,496bp in length and contained two ribosomal RNAs, 13 protein-coding genes, 22 transfer RNA genes, and the control region. The gene composition and order were similar to suborder...
Echosides, isolated from Streptomyces sp. LZ35, represent a class of para-terphenyl natural products that display DNA topoisomerase I and IIα inhibitory activities. By analyzing the genome draft of strain LZ35, the ech gene cluster was identified to be responsible for the biosynthesis of echosides, which was further confirmed by gene disruption and HPLC analysis. Meanwhile, the biosynthetic pathway...
Dopamine D2 receptor (DRD2) gene, a member of the dopamine receptors gene family, has been studied as a candidate gene for broodiness due to its special effects on avian prolactin secretion. Here, the genomic DNA and cDNA sequences of goose (Anser cygnoides) DRD2 gene were cloned and characterized for the first time. The goose DRD2 cDNA is 1353bp in length and encodes a protein of 450 amino acids...
Idiopathic basal ganglia calcification (IBGC) is a rare neuropsychiatric disorder characterized by bilateral and symmetric cerebral calcifications. Recently, SLC20A2 was identified as a causative gene for familial IBGC, and three mutations were reported in a northern Chinese population. Here, we aimed to explore the mutation spectrum of SLC20A2 in a southern Chinese population. Sanger sequencing was...
Dynamic information in proteins may provide valuable information for understanding allosteric regulation of protein complexes or long-range effects of the mutations on enzyme activity. Experimental data such as X-ray B-factors or NMR order parameters provide a convenient estimate of atomic fluctuations (or atomic auto-correlated motions) in proteins. However, it is not as straightforward to obtain...
Regenerating gene (Reg), first isolated from a regenerating islet cDNA library [J. Biol. Chem. 263 (1988) 2111], encodes a secretory protein with a growth stimulating effect on pancreatic β cells that ameliorates the diabetes of 90% depancreatized rats [Proc. Natl. Acad. Sci. USA 91 (1994) 3589] and non-obese diabetic mice [Diabetes 51(Suppl. 3) (2002) S478]. Reg and Reg-related genes have been revealed...
Cinnamomin, which has three isoforms, is a type II ribosome-inactivating protein (RIP) purified from the mature seeds of camphor tree (Cinnamomum camphora). In a previous study, an incomplete cDNA that encoded the A- and B-chain of Cinnamomin but lacked signal peptide sequence was cloned. In the present paper, its full-length cDNA was obtained by 5′ rapid amplification of cDNA ends (5′RACE). Subsequently,...
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