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https://www.readbyqxmd.com/read/28650988/transcriptomic-analysis-to-uncover-genes-affecting-cold-resistance-in-the-chinese-honey-bee-apis-cerana-cerana
#1
Kai Xu, Qingsheng Niu, Huiting Zhao, Yali Du, Yusuo Jiang
The biological activity and geographical distribution of honey bees is strongly temperature-dependent, due to their ectothermic physiology. In China, the endemic Apis cerana cerana exhibits stronger cold hardiness than Western honey bees, making the former species important pollinators of winter-flowering plants. Although studies have examined behavioral and physiological mechanisms underlying cold resistance in bees, data are scarce regarding the exact molecular mechanisms. Here, we investigated gene expression in A...
2017: PloS One
https://www.readbyqxmd.com/read/28650521/jmj27-an-arabidopsis-h3k9-histone%C3%A2-demethylase-modulates-defense-against-pseudomonas-syringae%C3%A2-and%C3%A2-flowering%C3%A2-time
#2
Aditya Dutta, Pratibha Choudhary, Julie Caruana, Ramesh Raina
Histone methylation is known to dynamically regulate diverse developmental and physiological processes. Histone methyl marks are written by methyltransferases and erased by demethylases, and result in modification of chromatin structure to repress or activate transcription. However, little is known about how histone methylation may regulate defense mechanisms and flowering time in plants. Here we report characterization of JmjC DOMAIN-CONTAINING PROTEIN 27 (JMJ27), an Arabidopsis JHDM2 (JmjC domain-containing histone demethylase 2) family protein, which modulates defense against pathogens and flowering time...
June 26, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28648883/molecular-cloning-and-functional-analysis-of-tumor-necrosis-factor-receptor-associated-factor-6-traf6-in-crossastrea-gigas
#3
Fan Mao, Jun Li, Yuehuan Zhang, Zhiming Xiang, Yang Zhang, Ziniu Yu
Tumor necrosis factor receptor-associated factor 6 (TRAF6) has been demonstrated to be a key signaling molecule involved in adaptive and innate immunity. In this study, we obtained the full length CgTRAF6 cDNA and analyzed the characteristics of the ORF and the peptide sequence in Crassostrea gigas. The deduced protein sequence of CgTRAF6 includes a conserved C-terminal TRAF domain following the RING and the zinc finger domain. The TRAF domain is composed of coiled-coil TRAF-N and MATH (meprin and TRAF-C homology) subdomains...
June 22, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28648506/the-role-of-glis3-in-thyroid-disease-as-part-of-a-multisystem-disorder
#4
REVIEW
P Dimitri
Congenital hypothyroidism is the most common hereditary endocrine disorder. In a small number of cases, mutations have been identified that are associated with maldevelopment and maldescent of the thyroid. Some of these mutations present as syndromes with a multisystem phenotype such as NKX2-1, PAX8, and FOXE. The association of permanent neonatal diabetes and congenital hypothyroidism was first reported in 2003 and subsequently led to the identification GLIS3 as the mutation responsible for this presentation...
March 2017: Best Practice & Research. Clinical Endocrinology & Metabolism
https://www.readbyqxmd.com/read/28648071/elucidation-of-the-catalytic-mechanism-of-a-miniature-zinc-finger-hydrolase
#5
Abir Ganguly, Trung Quan Luong, Oliver Brylski, Michael Dirkmann, David Möller, Simon Ebbinghaus, Frank Schulz, Roland Winter, Elsa Sanchez-Garcia, Walter Thiel
To improve our mechanistic understanding of zinc metalloenzymes, we report a joint computational and experimental study of a minimal carbonic anhydrase (CA) mimic, a 22-residue Zn-finger hydrolase. We combine classical molecular dynamics (MD) simulations, quantum mechanics/molecular mechanics (QM/MM) geometry optimizations, and QM/MM free energy simulations with ambient and high-pressure kinetic measurements to investigate the mechanism of the hydrolysis of the substrate p-nitrophenylacetate (pNPA). The zinc center of the hydrolase prefers a pentacoordinated geometry, as found in most naturally occurring CAs and CA-like enzymes...
June 24, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28644958/translating-cancer-epigenomics-into-the-clinic-focus-on-lung-cancer
#6
REVIEW
Josep Mari-Alexandre, Angel Diaz-Lagares, Maria Villalba, Oscar Juan, Ana B Crujeiras, Alfonso Calvo, Juan Sandoval
Epigenetic deregulation is increasingly being recognized as a hallmark of cancer. Recent studies have identified many new epigenetic biomarkers, some of which are being introduced into clinical practice for diagnosis, molecular classification, prognosis or prediction of response to therapies. O-6-methylguanine-DNA methyltransferase gene is the most clinically advanced epigenetic biomarker as it predicts the response to temozolomide and carmustine in gliomas. Therefore, epigenomics may represent a novel and promising tool for precision medicine, and in particular, the detection of epigenomic biomarkers in liquid biopsies will be of great interest for monitoring diseases in patients...
June 2, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/28643253/genome-editing-of-rat
#7
Takehito Kaneko
Many genetically engineered rat strains have been produced for biomedical research. The simple and quick production of knock-out and knock-in rats is currently possible using genome editing techniques incorporating zinc finger nuclease (ZFN), transcription activator-like effector nuclease (TALEN), or clustered regularly interspaced short palindromic repeats (CRISPR)-Cas9. Genome-edited animals have been produced by the introduction of endonucleases into embryos using conventional microinjection and a new electroporation method named Technique for Animal Knockout system by Electroporation (TAKE)...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28643251/genome-editing-in-mouse-and-rat-by-electroporation
#8
Takehito Kaneko
Many knock-out/knock-in mouse and rat strains have been produced by genome editing techniques using engineered endonucleases, including zinc finger nuclease (ZFN), transcription activator-like effector nuclease (TALEN), or clustered regularly interspaced short palindromic repeats (CRISPR)-Cas9. Microinjection of engineered endonucleases into pronuclear-stage embryos is required to produce genome-edited rodents and the development of easy, rapid, and high-efficiency methods that do not require special skills such as microinjection is needed...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28643245/construction-and-evaluation-of-zinc-finger-nucleases
#9
Hiroshi Ochiai, Takashi Yamamoto
Zinc-finger nucleases (ZFNs) are programmable nucleases that have opened the door to the genome editing era. The construction of ZFNs recognizing a target sequence of interest is laborious, and has not been widely used recently. However, key ZFN patents are expiring over the next 2-4 years, enabling a wide range of deployments for clinical and industrial applications. This article introduces a ZFN construction protocol that uses bacterial one-hybrid (B1H) selection and single-stranded annealing (SSA) assay.
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28642594/differential-effects-on-gene-transcription-and-hematopoietic-differentiation-correlate-with-gata2-mutant-disease-phenotypes
#10
C-E Chong, P Venugopal, P H Stokes, Y K Lee, P J Brautigan, D T O Yeung, M Babic, G A Engler, S W Lane, M Klingler-Hoffmann, J M Matthews, R J D'Andrea, A L Brown, C N Hahn, H S Scott
Heterozygous GATA2 mutations underlie an array of complex hematopoietic and lymphatic diseases. Analysis of the literature reporting three recurrent GATA2 germline (g) mutations (gT354M, gR396Q, gR398W) revealed different phenotype tendencies. While all three mutants differentially predispose to myeloid malignancies, there was no difference in leukemia-free survival for GATA2 patients. Despite intense interest, the molecular pathogenesis of GATA2 mutation is poorly understood. We functionally characterized a GATA2 mutant allelic series representing major disease phenotypes caused by germline and somatic (s) mutations in zinc finger (ZF) 2...
June 23, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28642478/a-novel-plant-e3-ligase-stabilizes-escherichia-coli-heat-shock-factor-%C3%AF-32
#11
Yulong Niu, Xibing Xu, Chengcheng Liu, Tao Wang, Ke Liang, Jianmei Wang, Zhibin Liu, Xufeng Li, Yi Yang
The heat shock response is crucial for organisms against heat-damaged proteins and maintaining homeostasis at a high temperature. Heterologous expression of eukaryotic molecular chaperones protects Escherichia coli from heat stress. Here we report that expression of the plant E3 ligase BnTR1 significantly increases the thermotolerance of E. coli. Different from eukaryotic chaperones, BnTR1 expression induces the accumulation of heat shock factor σ(32) and heat shock proteins. The active site of BnTR1 in E...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28639742/two-zinc-finger-proteins-from-mycobacterium-smegmatis-dna-binding-and-activation-of-transcription
#12
Subho Ghosh, Dipankar Chatterji
Single zinc finger domain containing proteins are very few in number. Of numerous zinc finger proteins in eukaryotes, only three of them like GAGA, Superman and DNA binding by one finger (Dof) have single zinc finger domain. Although few zinc finger proteins have been described in eubacteria, no protein with single C4 zinc finger has been described in details in anyone of them. In this article, we are describing two novel C-terminal C4 zinc finger proteins-Msmeg_0118 and Msmeg_3613 from Mycobacterium smegmatis...
June 22, 2017: Genes to Cells: Devoted to Molecular & Cellular Mechanisms
https://www.readbyqxmd.com/read/28637621/gata2-deficiency-and-related-myeloid-neoplasms
#13
Marcin W Wlodarski, Matthew Collin, Marshall S Horwitz
The GATA2 gene codes for a hematopoietic transcription factor that through its two zinc fingers (ZF) can occupy GATA-DNA motifs in a countless number of genes. It is crucial for the proliferation and maintenance of hematopoietic stem cells. During the past 5 years, germline heterozygous mutations in GATA2 were reported in several hundred patients with various phenotypes ranging from mild cytopenia to severe immunodeficiency involving B cells, natural killer cells, CD4(+) cells, monocytes and dendritic cells (MonoMAC/DCML), and myeloid neoplasia...
April 2017: Seminars in Hematology
https://www.readbyqxmd.com/read/28637447/differential-gene-expression-at-different-stages-of-mesocarp-development-in-high-and-low-yielding-oil-palm
#14
Yick Ching Wong, Huey Fang Teh, Katharina Mebus, Tony Eng Keong Ooi, Qi Bin Kwong, Ka Loo Koo, Chuang Kee Ong, Sean Mayes, Fook Tim Chew, David R Appleton, Harikrishna Kulaveerasingam
BACKGROUND: The oil yield trait of oil palm is expected to involve multiple genes, environmental influences and interactions. Many of the underlying mechanisms that contribute to oil yield are still poorly understood. In this study, we used a microarray approach to study the gene expression profiles of mesocarp tissue at different developmental stages, comparing genetically related high- and low- oil yielding palms to identify genes that contributed to the higher oil-yielding palm and might contribute to the wider genetic improvement of oil palm breeding populations...
June 21, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28636539/chromatin-remodeling-protein-morc2-promotes-breast-cancer-invasion-and-metastasis-through-a-prd-domain-mediated-interaction-with-ctnnd1
#15
Xiao-Hong Liao, Ye Zhang, Wen-Jie Dong, Zhi-Min Shao, Da-Qiang Li
MORC family CW-type zinc finger 2 (MORC2) is a newly identified chromatin remodeling protein with emerging roles in the regulation of DNA damage response and gene transcription, but its mechanistic role in breast cancer development and progression remains unexplored. Here, we show that MORC2 promoted breast cancer invasion and metastasis and these effects depended on a proline-rich domain (PRD) within its carboxy-terminal region spanning residues 601-734. Induced expression of wild-type MORC2 did not significantly affect cell proliferation and cell-cycle progression, but promoted breast cancer cell migration and invasion in vitro and metastatic lung colonization in vivo...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28634046/tumor-antigen-prame-is-up-regulated-by-mzf1-in-cooperation-with-dna-hypomethylation-in-melanoma-cells
#16
Yong-Kyu Lee, Ui-Hyun Park, Eun-Joo Kim, Jin-Taek Hwang, Ji-Cheon Jeong, Soo-Jong Um
Elevated expression of preferentially expressed antigen in melanoma (PRAME) has been implicated in disease progression in a variety of cancers. However, the mechanisms underlying the transcriptional regulation of PRAME remain largely unexplored. Initially, we observed that PRAME was elevated in proportion to the malignant potential of melanoma cells. From the in silico prediction of PRAME gene structure, we identified the putative myeloid zinc finger 1 (MZF1) binding sites, which overlap with a CpG-rich region located in the first intron...
June 17, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28633014/a-krabsody-for-embryo-placental-development
#17
Didier Trono
Many of the hundreds of KRAB zinc finger proteins encoded by human and mouse are involved in taming the transcriptional regulatory potential of transposable elements. Reporting recently in Science, Yang et al. (2017) reveal that one murine family member, ZFP568, controls Igf2 expression for proper embryonic and placental development.
June 19, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28631575/long-non-coding-rna-ccat1-mir-218-zfx-axis-modulates-the-progression-of-laryngeal-squamous-cell-cancer
#18
Yaming Zhang, Haili Hu
Long non-coding RNAs have been proved to be closely associated with different cancers. This study was designed to elucidate the function and mechanisms of colon cancer-associated transcript-1 in the progression of human laryngeal squamous cell cancer. Expressions of colon cancer-associated transcript-1, microRNA-218, and zinc finger protein, X-linked messenger RNA were measured using quantitative real-time polymerase chain reaction, and the expression level of zinc finger protein, X-linked protein was detected using western blot...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28631571/a-truncated-p53-in-human-lung-cancer-cells-as-a-critical-determinant-of-proliferation-and-invasiveness
#19
Weiying Li, Baitang Lai, Xuehui Yang, Chunyan Zhang, Hui Wang
As a transcription factor, p53 must accumulate in the nucleus to be effective. Signals related to nuclear localization are distributed mainly in the C-terminal of p53. So these nuclear location domains were reserved and the other part of the C-terminal was removed in this study. We investigated whether the truncated p53 (p53(DEL)) may affect proliferation and invasive potential of human lung cancer cells. H1299 and 801D cells expressing full-length p53 and the p53(DEL) were obtained by screening. Cell proliferation assay, cell apoptotic analysis, cell migration assay, and invasion assay were performed...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28631556/kruppel-like-factor-4-inhibits-non-small-cell-lung-cancer-cell-growth-and-aggressiveness-by-stimulating-transforming-growth-factor-%C3%AE-1-meidated-erk-jnk-nf-%C3%AE%C2%BAb-signaling-pathways
#20
Renzhi Yu, Lei Han, Xin Ni, Minghuan Wang, Ping Xue, Li Zhang, Mei Yuan
Non-small cell lung cancer is one of the most common epithelial tumors that cause the most common cancer-related mortality due to invasive ability. Research has found that Kruppel-like factor 4, a zinc-finger transcription factor, plays a critical role in the tumor evolution and progression. However, the molecular signal pathways mediated by Kruppel-like factor 4 in the progression of non-small cell lung cancer cells have not been well understood yet. In this study, we investigated the possible role and potential mechanism of Kruppel-like factor 4 in growth and aggressiveness of non-small cell lung cancer cells...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
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