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https://www.readbyqxmd.com/read/28548707/phenotypes-and-genotypes-in-individuals-with-smc1a-variants
#1
Sylvia Huisman, Paul A Mulder, Egbert Redeker, Ingrid Bader, Anne-Marie Bisgaard, Alice Brooks, Anna Cereda, Constanza Cinca, Dinah Clark, Valerie Cormier-Daire, Matthew A Deardorff, Karin Diderich, Mariet Elting, Anthonie van Essen, David Fitz Patrick, Cristina Gervasini, Gabriele Gillessen-Kaesbach, Katta M Girisha, Yvonne Hilhorst-Hofstee, Saskia Hopman, Denise Horn, Mala Isrie, Sandra Jansen, Cathrine Jespersgaard, Frank J Kaiser, Maninder Kaur, Tjitske Kleefstra, Ian D Krantz, Phillis Lakeman, Annemiek Landlust, Davor Lessel, Caroline Michot, Jo Moss, Sarah E Noon, Chris Oliver, Ilaria Parenti, Juan Pie, Feliciano J Ramos, Claudine Rieubland, Silvia Russo, Angelo Selicorni, Zeynep Tümer, Rieneke Vorstenbosch, Tara L Wenger, Ingrid van Balkom, Sigrid Piening, Jolanta Wierzba, Raoul C Hennekam
SMC1A encodes one of the proteins of the cohesin complex. SMC1A variants are known to cause a phenotype resembling Cornelia de Lange syndrome (CdLS). Exome sequencing has allowed recognizing SMC1A variants in individuals with encephalopathy with epilepsy who do not resemble CdLS. We performed an international, interdisciplinary study on 51 individuals with SMC1A variants for physical and behavioral characteristics, and compare results to those in 67 individuals with NIPBL variants. For the Netherlands all known individuals with SMC1A variants were studied, both with and without CdLS phenotype...
May 26, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28548037/moonlighting-glycolytic-enzyme-glyceraldehyde-3-phosphate-dehydrogenase-gapdh-is-required-for-efficient-hepatitis-c-virus-and-dengue-virus-infections-in-human-huh-7-5-1-cells
#2
Meera Raj, Mary Langley, Steven J McArthur, François Jean
Hijacking of cellular biosynthetic pathways by human enveloped viruses is a shared molecular event essential for the viral lifecycle. In this study, the accumulating evidence of the importance of human glyceraldehyde-3-phosphate dehydrogenase (GAPDH) in the host secretory pathway led us to hypothesize that this moonlighting enzyme could play a key role in the lifecycle steps of two important Flaviviridae members, hepatitis C virus (HCV) and dengue virus (DENV). We used short interfering RNA (siRNA)-mediated knockdown of human GAPDH in Huh-7...
May 26, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28533178/mucin-and-carbohydrate-stimulated-adhesion-and-subproteome-changes-of-the-probiotic-bacterium-lactobacillus-acidophilus-ncfm
#3
Hasan Ufuk Celebioglu, Sita Vaag Olesen, Kennie Prehn, Sampo J Lahtinen, Susanne Brix, Maher Abou Hachem, Birte Svensson
Adhesion to intestinal mucosa is a crucial property for probiotic bacteria. Adhesion is thought to increase host-bacterial interactions, thus potentially enabling health benefits to the host. Molecular events connected with adhesion and surface proteome changes were investigated for the probiotic Lactobacillus acidophilus NCFM cultured with established or emerging prebiotic carbohydrates as carbon source and in the presence of mucin, the glycoprotein of the epithelial mucus layer. Variation in adhesion to HT29-cells and mucin was associated with carbon source and mucin-induced subproteome abundancy differences...
May 19, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28526562/new-intracellular-activities-of-matrix-metalloproteinases-shine-in-the-moonlight
#4
REVIEW
Parker G Jobin, Georgina S Butler, ChristopherM Overall
Adaption of a single protein to perform multiple independent functions facilitates functional plasticity of the proteome allowing a limited number of protein-coding genes to perform a multitude of cellular processes. Multifunctionality is achievable by post-translational modifications and by modulating subcellular localization. Matrix metalloproteinases (MMPs), classically viewed as degraders of the extracellular matrix (ECM) responsible for matrix protein turnover, are more recently recognized as regulators of a range of extracellular bioactive molecules including chemokines, cytokines, and their binders...
May 16, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28517912/keeping-good-friends-close-the-surface-and-secreted-proteomes-of-a-probiotic-bacterium-provide-candidate-proteins-for-intestinal-attachment-and-communication-with-the-host
#5
Constance J Jeffery
Bacteria use cell surface proteins and secreted proteins to interact with host tissues. Several dozen previously published proteomics studies have identified cell surface proteins for pathogens. In this issue, Celebioglu and Svensson (Proteomics 2017, XXX, XXX-XXX) use 2-D gel electrophoresis and mass spectrometry to identify secreted and cell surface proteins of a commensual gut bacterium, Lactobacillus acidophilus NCFM. Some of the proteins are known to have functions in the cytoplasm, and their presence on the cell surface suggests they might be moonlighting proteins...
May 18, 2017: Proteomics
https://www.readbyqxmd.com/read/28504081/dissecting-physical-structure-of-calreticulin-an-intrinsically-disordered-ca-2-buffering-chaperone-from-endoplasmic-reticulum
#6
Anna Rita Migliaccio, Vladimir N Uversky
Calreticulin (CALR) is a Ca(2+) binding multifunctional protein that mostly resides in the endoplasmic reticulum (ER) and plays a number of important roles in various physiological and pathological processes. Although the major functions ascribed to CALR are controlling the Ca(2+) homeostasis in ER and acting as a lectin-like ER chaperon for many glycoproteins, this moonlighting protein can be found in various cellular compartments where it has many non-ER functions. To shed more light on the mechanisms underlying polyfunctionality of this moonlighting protein that can be found in different cellular compartments and that possesses a wide spectrum of unrelated biological activities, being able to interact with Ca(2+) (and potentially other metal ions), RNA, oligosaccharides, and numerous proteins, we used a set of experimental and computational tools to evaluate the intrinsic disorder status of CALR and the role of calcium binding on structural properties and conformational stability of the full-length CALR and its isolated P- and C-domains...
May 13, 2017: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/28497908/the-molybdenum-cofactor-enzyme-marc-moonlighting-or-promiscuous-enzyme
#7
REVIEW
Angel Llamas, Alejandro Chamizo-Ampudia, Manuel Tejada-Jimenez, Aurora Galvan, Emilio Fernandez
Molybdenum (Mo) is present in the active center of eukaryotic enzymes as a tricyclic pyranopterin chelate compound forming the Mo Cofactor (Moco). Four Moco containing enzymes are known in eukaryotes, nitrate reductase (NR), sulfite oxidase (SO), xanthine oxidoreductase (XOR), and aldehyde oxidase (AO). A fifth Moco enzyme has been recently identified. Because of the ability of this enzyme to convert by reduction several amidoximes prodrugs into their active amino forms, it was named mARC (mitochondrial Amidoxime Reducing Component)...
May 12, 2017: BioFactors
https://www.readbyqxmd.com/read/28472774/mitochondria-chaperone-grp75-moonlighting-as-a-cell-cycle-controller-to-derail-endocytosis-provides-an-opportunity-for-nanomicrosphere-intracellular-delivery
#8
Zhihui Gao, Xiuran Niu, Qing Zhang, Hang Chen, Aiai Gao, Shanshan Qi, Rong Xiang, Mattias Belting, Sihe Zhang
Understanding how cancer cells regulate endocytosis during the cell cycle could lead us to capitalize this event pharmacologically. Although certain endocytosis pathways are attenuated during mitosis, the endocytosis shift and regulation during the cell cycle have not been well clarified. The conventional concept of glucose-regulated proteins (GRPs) as protein folding chaperones was updated by discoveries that translocated GRPs assume moonlighting functions that modify the immune response, regulate viral release, and control intracellular trafficking...
April 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28465678/protein-species-quantitative-venomics-looking-through-a-crystal-ball
#9
REVIEW
Juan J Calvete, Daniel Petras, Francisco Calderón-Celis, Bruno Lomonte, Jorge Ruiz Encinar, Alfredo Sanz-Medel
In this paper we discuss recent significant developments in the field of venom research, specifically the emergence of top-down proteomic applications that allow achieving compositional resolution at the level of the protein species present in the venom, and the absolute quantification of the venom proteins (the term "protein species" is used here to refer to all the different molecular forms in which a protein can be found. Please consult the special issue of Jornal of Proteomics "Towards deciphering proteomes via the proteoform, protein speciation, moonlighting and protein code concepts" published in 2016, vol...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28451971/mpfit-computational-tool-for-predicting-moonlighting-proteins
#10
Ishita Khan, Joshua McGraw, Daisuke Kihara
An increasing number of proteins have been found which are capable of performing two or more distinct functions. These proteins, known as moonlighting proteins, have drawn much attention recently as they may play critical roles in disease pathways and development. However, because moonlighting proteins are often found serendipitously, our understanding of moonlighting proteins is still quite limited. In order to lay the foundation for systematic moonlighting proteins studies, we developed MPFit, a software package for predicting moonlighting proteins from their omics features including protein-protein and gene interaction networks...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28443070/crystal-structure-of-glyceraldehyde-3-phosphate-dehydrogenase-from-the-gram-positive-bacterial-pathogen-a-vaginae-an-immunoevasive-factor-that-interacts-with-the-human-c5a-anaphylatoxin
#11
Javier Querol-García, Francisco J Fernández, Ana V Marin, Sara Gómez, Daniel Fullà, Cecilia Melchor-Tafur, Virginia Franco-Hidalgo, Sebastián Albertí, Jordi Juanhuix, Santiago Rodríguez de Córdoba, José R Regueiro, M Cristina Vega
The Gram-positive anaerobic human pathogenic bacterium Atopobium vaginae causes most diagnosed cases of bacterial vaginosis as well as opportunistic infections in immunocompromised patients. In addition to its well-established role in carbohydrate metabolism, D-glyceraldehyde-3-phosphate dehydrogenase (GAPDH) from Streptococcus pyogenes and S. pneumoniae have been reported to act as extracellular virulence factors during streptococcal infections. Here, we report the crystal structure of GAPDH from A. vaginae (AvGAPDH) at 2...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28442603/aspergillus-fumigatus-trehalose-regulatory-subunit-homolog-moonlights-to-mediate-cell-wall-homeostasis-through-modulation-of-chitin-synthase-activity
#12
Arsa Thammahong, Alayna K Caffrey-Card, Sourabh Dhingra, Joshua J Obar, Robert A Cramer
Trehalose biosynthesis is found in fungi but not humans. Proteins involved in trehalose biosynthesis are essential for fungal pathogen virulence in humans and plants through multiple mechanisms. Loss of canonical trehalose biosynthesis genes in the human pathogen Aspergillus fumigatus significantly alters cell wall structure and integrity, though the mechanistic link between these virulence-associated pathways remains enigmatic. Here we characterize genes, called tslA and tslB, which encode proteins that contain domains similar to those corresponding to trehalose-6-phosphate phosphatase but lack critical catalytic residues for phosphatase activity...
April 25, 2017: MBio
https://www.readbyqxmd.com/read/28393464/exo-and-surface-proteomes-of-the-probiotic-bacterium-lactobacillus-acidophilus-ncfm
#13
Hasan Ufuk Celebioglu, Birte Svensson
Lactobacillus acidophilus NCFM is a well-known probiotic bacterium extensively studied for its beneficial health effects. Exoproteome (proteins exported into culture medium) and surface proteome (proteins attached to S-layer) of this probiotic were identified by using 2DE followed by MALDI TOF MS to find proteins potentially involved in bacteria-host interactions. The exo- and surface proteomes included 43 and 39 different proteins from 72 and 49 successfully identified spots, respectively. Twenty-two proteins were shared between the two proteomes; both contained the major surface layer protein that participates in host interaction as well as several well-known and putative moonlighting proteins...
April 9, 2017: Proteomics
https://www.readbyqxmd.com/read/28378758/corrigendum-n-acetyl-ornithine-deacetylase-is-a-moonlighting-protein-and-is-involved-in-the-adaptation-of-entamoeba-histolytica-to-nitrosative-stress
#14
Preeti Shahi, Meirav Trebicz-Geffen, Shruti Nagaraja, Rivka Hertz, Sharon Baumel-Alterzon, Karen Methling, Michael Lalk, Mohit Mazumder, Gourinath Samudrala, Serge Ankri
No abstract text is available yet for this article.
April 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28357327/nprr-a-moonlighting-quorum-sensor-shifting-from-a-phosphatase-activity-to-a-transcriptional-activator
#15
COMMENT
Stéphane Perchat, Antoine Talagas, Samira Zouhir, Sandrine Poncet, Laurent Bouillaut, Sylvie Nessler, Didier Lereclus
Regulation of biological functions requires factors (proteins, peptides or chemicals) able to sense and translate environmental conditions or any circumstances in order to modulate the transcription of a gene, the stability of a transcript or the activity of a protein. Quorum sensing is a regulation mechanism connecting cell density to the physiological state of a single cell. In bacteria, quorum sensing coordinates virulence, cell fate and commitment to sporulation and other adaptation properties. The critical role of such regulatory systems was demonstrated in pathogenicity and adaptation of bacteria from the Bacillus cereus group (i...
November 4, 2016: Microbial Cell
https://www.readbyqxmd.com/read/28338876/subcellular-localization-of-arabidopsis-arogenate-dehydratases-suggests-novel-and-non-enzymatic-roles
#16
Crystal D Bross, Travis R Howes, Sara Abolhassani Rad, Ornela Kljakic, Susanne E Kohalmi
Arogenate dehydratases (ADTs) catalyze the final step in phenylalanine biosynthesis in plants. The Arabidopsis thaliana genome encodes a family of six ADTs capable of decarboxylating/dehydrating arogenate into phenylalanine. Using cyan fluorescent protein (CFP)-tagged proteins, the subcellular localization patterns of all six A. thaliana ADTs were investigated in intact Nicotiana benthamiana and A. thaliana leaf cells. We show that A. thaliana ADTs localize to stroma and stromules (stroma-filled tubules) of chloroplasts...
March 1, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28327178/glyceraldehyde-3-phosphate-dehydrogenase-acts-as-an-adhesin-in-erysipelothrix-rhusiopathiae-adhesion-to-porcine-endothelial-cells-and-as-a-receptor-in-recruitment-of-host-fibronectin-and-plasminogen
#17
Weifeng Zhu, Qiang Zhang, Jingtao Li, Yanmin Wei, Chengzhi Cai, Liang Liu, Zhongmin Xu, Meilin Jin
Erysipelothrix rhusiopathiae is the causative agent of animal erysipelas and human erysipeloid. Previous studies suggested glyceraldehyde 3-phosphate dehydrogenase (GAPDH) plays a role in the pathogenesis of E. rhusiopathiae infection. We studied E. rhusiopathiae GAPDH interactions with pig vascular endothelial cells, fibronectin, and plasminogen. Recombinant GAPDH (rGAPDH) was successfully obtained, and it was shown that it plays a role in E. rhusiopathiae adhesion to pig vascular endothelial cells. Moreover, rGAPDH could bind fibronectin and plasminogen in a dose-dependent manner...
March 21, 2017: Veterinary Research
https://www.readbyqxmd.com/read/28323870/contribution-of-sortase-srta2-to-lactobacillus-casei-bl23-inhibition-of-staphylococcus-aureus-internalization-into-bovine-mammary-epithelial-cells
#18
Renata F S Souza, Julien Jardin, Chantal Cauty, Lucie Rault, Damien S Bouchard, Luis G Bermúdez-Humarán, Philippe Langella, Vicente Monedero, Núbia Seyffert, Vasco Azevedo, Yves Le Loir, Sergine Even
Probiotics have been considered as a promising strategy to prevent various diseases in both humans and animals. This approach has gained interest in recent years as a potential means to control bovine mastitis. In a previous study, we found that several L. casei strains, including BL23, were able to inhibit the internalization of S. aureus, a major etiologic agent of mastitis, into bovine mammary epithelial cells (bMEC). This antagonism required a direct contact between L. casei and bMEC or S. aureus, suggesting the inhibition relied on interactions between L...
2017: PloS One
https://www.readbyqxmd.com/read/28320879/metabolism-shapes-the-cell
#19
Anthony M Sperber, Jennifer K Herman
More than five decades of work support the idea that cell envelope synthesis, including the inward growth of cell division, is tightly coordinated with DNA replication and protein synthesis through central metabolism. Remarkably, no unifying model exists to account for how these fundamentally disparate processes are functionally coupled. Recent studies demonstrate that proteins involved in carbohydrate and nitrogen metabolism can moonlight as direct regulators of cell division, coordinate cell division and DNA replication, and even suppress defects in DNA replication...
March 20, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28298336/moonlighting-glycolytic-protein-glyceraldehyde-3-phosphate-dehydrogenase-gapdh-an-evolutionarily-conserved-plasminogen-receptor-on-mammalian-cells
#20
Anoop Singh Chauhan, Manoj Kumar, Surbhi Chaudhary, Anil Patidar, Asmita Dhiman, Navdeep Sheokand, Himanshu Malhotra, Chaaya Iyengar Raje, Manoj Raje
Prokaryotic pathogens establish infection in mammals by capturing the proteolytic enzyme plasminogen (Plg) onto their surface to digest host extracellular matrix (ECM). One of the bacterial surface Plg receptors is the multifunctional glycolytic enzyme glyceraldehyde-3-phosphate dehydrogenase (GAPDH). In a defensive response, the host mounts an inflammatory response, which involves infiltration of leukocytes to sites of inflammation. This requires macrophage exit from the blood and migration across basement membranes, a phenomenon dependent on proteolytic remodeling of the ECM utilizing Plg...
March 15, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
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