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Tissue specific protein interactions

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https://www.readbyqxmd.com/read/28444448/the-5-untranslated-region-of-potato-sbglr-gene-contributes-to-pollen-specific-expression
#1
Yujie Chang, Min Yan, Jingjuan Yu, Dengyun Zhu, Qian Zhao
The 5'UTR of SBgLR enhances gene expression by regulating both its transcription and translation. SBgLR (Solanum tuberosum genomic lysine rich) is a pollen-specific gene in Solanum tuberosum that encodes a microtubule-associated protein. The region from -85 to +180 (transcription start site at +1) was determined to be critical for specific expression in pollen grains. Transient and stable expression assays showed that the 5'UTR (from +1 to +184) enhanced gene expression in all detected tissues of transgenic tobacco...
April 25, 2017: Planta
https://www.readbyqxmd.com/read/28442573/cell-cycle-dependent-degradation-of-the-methyltransferase-setd3-attenuates-cell-proliferation-and-liver-tumorigenesis
#2
Xiaoqing Cheng, Yuan Hao, Wenjie Shu, Mengjie Zhao, Chen Zhao, Yuan Wu, Xiaodan Peng, Pinfang Yao, Daibiao Xiao, Guoliang Qing, Zhengying Pan, Lei Yin, Desheng Hu, Hai-Ning Du
Histone modifications, including lysine methylation, are epigenetic marks that influence many biological pathways. Accordingly, many methyltransferases have critical roles in various biological processes, and their dysregulation is often associated with cancer. However, the biological functions and regulation of many methyltransferases are unclear. Here, we report that a human homolog of the methyltransferase SET domain containing 3 (SETD3) is cell cycle regulated: SETD3 protein levels peaked in S phase and were lowest in M phase...
April 25, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28439872/are-non-muscle-actin-isoforms-functionally-equivalent
#3
REVIEW
Aleksandra Simiczyjew, Katarzyna Pietraszek-Gremplewicz, Antonina Joanna Mazur, Dorota Nowak
Actin is highly conserved and it is the most widespread protein in eukaryotic cells. One of the most important features of actin, which allows it to have many different functions, is its ability to polymerize and interact with many other proteins. Actins are the major constituent of the actin cytoskeleton, which is an important system that is involved in various aspects of cell function, including cell motility, structure, integrity, regulation of signal transduction and transcription. Six mammal actin isoforms are highly conserved and share common functions...
April 25, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/28439869/studying-protein-protein-interactions-in-planta-using-advanced-fluorescence-microscopy
#4
Marc Somssich, Rüdiger Simon
The formation of protein complexes through direct protein-protein interaction is essential for virtually every biological process, and accordingly the ability to determine the interaction properties of specific proteins is important to understand these processes. Förster resonance energy transfer (FRET) measurements are state-of-the-art confocal fluorescence microscopy- and imaging-based techniques that allow the analysis of protein interactions in vivo and in planta, in specific compartments of single cells or tissues...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28438120/transcriptomic-analysis-links-gene-expression-to-unilateral-pollen-pistil-reproductive-barriers
#5
Amanda K Broz, Rafael F Guerrero, April M Randle, You Soon Baek, Matthew W Hahn, Patricia A Bedinger
BACKGROUND: Unilateral incompatibility (UI) is an asymmetric reproductive barrier that unidirectionally prevents gene flow between species and/or populations. UI is characterized by a compatible interaction between partners in one direction, but in the reciprocal cross fertilization fails, generally due to pollen tube rejection by the pistil. Although UI has long been observed in crosses between different species, the underlying molecular mechanisms are only beginning to be characterized...
April 24, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28438025/fusion-of-polymeric-material-binding-peptide-to-cell-adhesion-artificial-proteins-enhances-their-biological-function
#6
Tomonori Waku, Yuko Imanishi, Yuta Yoshino, Shigeru Kunugi, Takeshi Serizawa, Naoki Tanaka
Orientation-controlled protein immobilization on a solid substrate surface is important for the development of biomedical materials such as scaffolds used in tissue engineering. In this study, the authors demonstrated that the introduction of material-binding peptides (MBPs) in Arg-Gly-Asp (RGD)-fused artificial proteins called blocking peptide fragment (BPF), which are fragments (residues 419-607) of the molecular chaperone DnaK, enhances the oriented adsorption of proteins on the polymer surface and improves their cell adhesion capability...
April 24, 2017: Biointerphases
https://www.readbyqxmd.com/read/28434945/prognostic-biomarker-identification-through-integrating-the-gene-signatures-of-hepatocellular-carcinoma-properties
#7
Jialin Cai, Bin Li, Yan Zhu, Xuqian Fang, Mingyu Zhu, Mingjie Wang, Shupeng Liu, Xiaoqing Jiang, Jianming Zheng, XinXin Zhang, Peizhan Chen
Many molecular classification and prognostic gene signatures for hepatocellular carcinoma (HCC) patients have been established based on genome-wide gene expression profiling; however, their generalizability is unclear. Herein, we systematically assessed the prognostic effects of these gene signatures and identified valuable prognostic biomarkers by integrating these gene signatures. With two independent HCC datasets (GSE14520, N=242 and GSE54236, N=78), 30 published gene signatures were evaluated, and 11 were significantly associated with the overall survival (OS) of postoperative HCC patients in both datasets...
April 12, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28432720/androgen-receptor-dysfunction-as-a-prevalent-manifestation-in-young-male-carriers-of-a-flna-gene-mutation
#8
Laura Carrera-García, Maximiliano Francisco Rivas-Crespo, María Soledad Fernández García
Androgenic actions require the proper signal transmission by the androgen receptor (AR), a nuclear transcription factor. This is initially located in the cell cytoplasm and should translocates to the nucleus to interact with DNA. AR functional impairment causes diverse blockage degrees of androgenic steroid action, known as androgen insensitivity syndromes. Filamin A, a protein coded by the FLNA gene, is a co-activator of various cytoplasmic factors, including AR. The mutational inactivation of the FLNA gene induces insufficiency of translocation and activation of AR...
April 21, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28431583/overexpression-of-mir-584-5p-inhibits-proliferation-and-induces-apoptosis-by-targeting-ww-domain-containing-e3-ubiquitin-protein-ligase-1-in-gastric-cancer
#9
Qing Li, Zheng Li, Song Wei, Weizhi Wang, Zheng Chen, Lei Zhang, Liang Chen, Bowen Li, Guangli Sun, Jianghao Xu, Qiang Li, Lu Wang, Zhipeng Xu, Yiwen Xia, Diancai Zhang, Hao Xu, Zekuan Xu
BACKGROUND: MicroRNAs are endogenously expressed, small non-coding RNAs that modulate gene expression by targeting specific mRNAs, resulting in translational repression or mRNA degradation. Although miR-584-5p has been reported to play a vital role in various malignancies, its role and the molecular mechanisms underlying the effects of miR-584-5p in gastric cancer (GC) remain to be clarified. In this study, we investigated the role of miR-584-5p in GC. METHODS: The expression of miR-584-5p and its specific target gene were determined in human GC specimens and cell lines by microRNA real-time polymerase chain reaction (RT-PCR), quantitative RT-PCR (qRT-PCR) and Western blot...
April 21, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28431272/specific-microrna-mrna-regulatory-network-of-colon-cancer-invasion-mediated-by-tissue-kallikrein-related-peptidase-6
#10
Earlphia Sells, Ritu Pandey, Hwudaurw Chen, Bethany A Skovan, Haiyan Cui, Natalia A Ignatenko
Metastatic colon cancer is a major cause of deaths among colorectal cancer (CRC) patients. Elevated expression of kallikrein 6 (KLK6), a member of a kallikrein subfamily of peptidase S1 family serine proteases, has been reported in CRC and is associated with low patient survival rates and poor disease prognosis. We knocked down KLK6 expression in HCT116 colon cancer cells to determine the significance of KLK6 expression for metastatic dissemination and to identify the KLK6-associated microRNAs (miRNAs) signaling networks in metastatic colon cancer...
April 18, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28429761/a-specific-nanobody-prevents-amyloidogenesis-of-d76n-%C3%AE-2-microglobulin-in-vitro-and-modifies-its-tissue-distribution-in-vivo
#11
Sara Raimondi, Riccardo Porcari, P Patrizia Mangione, Guglielmo Verona, Julien Marcoux, Sofia Giorgetti, Graham W Taylor, Stephan Ellmerich, Maurizio Ballico, Stefano Zanini, Els Pardon, Raya Al-Shawi, J Paul Simons, Alessandra Corazza, Federico Fogolari, Manuela Leri, Massimo Stefani, Monica Bucciantini, Julian D Gillmore, Philip N Hawkins, Maurizia Valli, Monica Stoppini, Carol V Robinson, Jan Steyaert, Gennaro Esposito, Vittorio Bellotti
Systemic amyloidosis is caused by misfolding and aggregation of globular proteins in vivo for which effective treatments are urgently needed. Inhibition of protein self-aggregation represents an attractive therapeutic strategy. Studies on the amyloidogenic variant of β2-microglobulin, D76N, causing hereditary systemic amyloidosis, have become particularly relevant since fibrils are formed in vitro in physiologically relevant conditions. Here we compare the potency of two previously described inhibitors of wild type β2-microglobulin fibrillogenesis, doxycycline and single domain antibodies (nanobodies)...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28429758/intracellular-lipid-binding-protein-family-diversity-from-oyster-crassostrea-gigas-genomic-and-structural-features-of-invertebrate-lipid-transporters
#12
Guilherme de Toledo-Silva, Guilherme Razzera, Flavia Lucena Zacchi, Nestor Cubas Wendt, Jacó Joaquim Mattos, Afonso Celso Dias Bainy
Intracellular lipid binding proteins (iLBPs) play a role in the transport and cellular uptake of fatty acids and gene expression regulation. The aim of this work was to characterize the iLBP gene family of the Pacific oyster Crassostrea gigas, one of the most cultivated marine bivalves in the world, using bioinformatics and molecular biology approaches. A total of 26 different iLBPs transcripts were identified in the Pacific oyster genome, including alternative splicing and gene duplication events. The oyster iLBP gene family seems to be more expanded than in other invertebrates...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28428261/ebf2-transcriptionally-regulates-brown-adipogenesis-via-the-histone-reader-dpf3-and-the-baf-chromatin-remodeling-complex
#13
Suzanne N Shapira, Hee-Woong Lim, Sona Rajakumari, Alexander P Sakers, Jeff Ishibashi, Matthew J Harms, Kyoung-Jae Won, Patrick Seale
The transcription factor early B-cell factor 2 (EBF2) is an essential mediator of brown adipocyte commitment and terminal differentiation. However, the mechanisms by which EBF2 regulates chromatin to activate brown fat-specific genes in adipocytes were unknown. ChIP-seq (chromatin immunoprecipitation [ChIP] followed by deep sequencing) analyses in brown adipose tissue showed that EBF2 binds and regulates the activity of lineage-specific enhancers. Mechanistically, EBF2 physically interacts with the chromatin remodeler BRG1 and the BAF chromatin remodeling complex in brown adipocytes...
April 20, 2017: Genes & Development
https://www.readbyqxmd.com/read/28428068/comparative-analysis-of-gene-expression-profiles-for-several-migrating-cell-types-identifies-cell-migration-regulators
#14
Young-Kyung Bae, Frank Macabenta, Heather Leigh Curtis, Angelike Stathopoulos
Cell migration is an instrumental process that ensures cells are properly positioned to support the specification of distinct tissue types during development. To provide insight, we used fluorescence activated cell sorting (FACS) to isolate two migrating cell types from the Drosophila embryo: caudal visceral mesoderm (CVM) cells, precursors of longitudinal muscles of the gut, and hemocytes (HCs), the Drosophila equivalent of blood cells. ~350 genes were identified from each of the sorted samples using RNA-seq, and in situ hybridization was used to confirm expression within each cell type or, alternatively, within other interacting, co-sorted cell types...
April 17, 2017: Mechanisms of Development
https://www.readbyqxmd.com/read/28425099/network-analysis-of-adhesion-growth-regulatory-galectins-and-their-binding-sites-in-adult-chicken-retina-and-choroid
#15
Joachim C Manning, Gabriel García Caballero, Clemens Knospe, Herbert Kaltner, Hans-Joachim Gabius
The highly ordered multilayered organization of the adult chicken retina is a suitable test model for examining zonal distribution of the members of a bioeffector family. Based on the concept of the sugar code, the functional pairing of glycan epitopes with cognate receptors (lectins) is emerging as a means to explain the control of diverse physiological activities. Having recently completed the biochemical characterization of all seven adhesion/growth-regulatory galectins present in chicken, it was possible to establish how the individual characteristics of their expression profiles add up to shape the galectin network, which until now has not been defined at this level of complexity...
April 20, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28424513/super-multiplex-vibrational-imaging
#16
Lu Wei, Zhixing Chen, Lixue Shi, Rong Long, Andrew V Anzalone, Luyuan Zhang, Fanghao Hu, Rafael Yuste, Virginia W Cornish, Wei Min
The ability to visualize directly a large number of distinct molecular species inside cells is increasingly essential for understanding complex systems and processes. Even though existing methods have successfully been used to explore structure-function relationships in nervous systems, to profile RNA in situ, to reveal the heterogeneity of tumour microenvironments and to study dynamic macromolecular assembly, it remains challenging to image many species with high selectivity and sensitivity under biological conditions...
April 19, 2017: Nature
https://www.readbyqxmd.com/read/28423659/targeting-hox-pbx-dimers-in-cancer
#17
REVIEW
Richard Morgan, Mohamed El-Tanani, Keith D Hunter, Kevin J Harrington, Hardev S Pandha
The HOX and PBX gene families encode transcription factors that have key roles in establishing the identity of cells and tissues in early development. Over the last 20 years it has become apparent that they are also dysregulated in a wide range of solid and haematological malignancies and have a predominantly pro-oncogenic function. A key mode of transcriptional regulation by HOX and PBX proteins is through their interaction as a heterodimer or larger complex that enhances their binding affinity and specificity for DNA, and there is growing evidence that this interaction is a potential therapeutic target in malignancies that include prostate, breast, renal, ovarian and lung cancer, melanoma, myeloma, and acute myeloid leukaemia...
March 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28421539/%C3%AE-synuclein-aggregates-with-%C3%AE-amyloid-or-tau-in-human-red-blood-cells-correlation-with-antioxidant-capability-and-physical-exercise-in-human-healthy-subjects
#18
Simona Daniele, Deborah Pietrobono, Jonathan Fusi, Caterina Iofrida, Lucia Chico, Lucia Petrozzi, Annalisa Lo Gerfo, Filippo Baldacci, Fabio Galetta, Gabriele Siciliano, Ubaldo Bonuccelli, Gino Santoro, Maria Letizia Trincavelli, Ferdinando Franzoni, Claudia Martini
Neurodegenerative disorders (NDs) are characterized by abnormal accumulation/misfolding of specific proteins, primarily α-synuclein (α-syn), β-amyloid1-42 (Aβ), and tau, in both brain and peripheral tissue. In addition to homo-oligomers, the role of α-syn interactions with Aβ or tau has gradually emerged. The altered protein accumulation has been related to both oxidative stress and physical activity; nevertheless, no correlation among the presence of peripheral α-syn hetero-aggregates, antioxidant capacity, and physical exercise has been discovered as of yet...
April 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28421465/the-role-of-the-molecular-clock-in-skeletal-muscle-and-what-it-is-teaching-us-about-muscle-bone-crosstalk
#19
REVIEW
Lance A Riley, Karyn A Esser
PURPOSE OF REVIEW: This review summarizes what has been learned about the interaction between skeletal muscle and bone from mouse models in which BMAL1, a core molecular clock protein has been deleted. Additionally, we highlight several genes which change following loss of BMAL1. The protein products from these genes are secreted from muscle and have a known effect on bone homeostasis. RECENT FINDINGS: Circadian rhythms have been implicated in regulating systems homeostasis through a series of transcriptional-translational feedback loops termed the molecular clock...
April 18, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28421182/tgf-%C3%AE-1-pretreatment-improves-the-function-of-mesenchymal-stem-cells-in-the-wound-bed
#20
Deepraj Ghosh, Daniel J McGrail, Michelle R Dawson
The wound healing process initiates after injury to a tissue and involves a series of orchestrated events to minimize the invasion of foreign matters such as bacteria and efficiently regenerate the damaged tissue. A variety of cells must be recruited to the tissue during wound healing. However, this process is severely disrupted in patients suffering from chronic illness, including diabetes, leading to impaired healing or non-healing wounds. Current avenues of treatment include negative-pressure therapy, wound debridement, growth factor replacement, and cell-based therapies...
2017: Frontiers in Cell and Developmental Biology
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