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https://www.readbyqxmd.com/read/28334865/structure-of-human-pofut1-its-requirement-in-ligand-independent-oncogenic-notch-signaling-and-functional-effects-of-dowling-degos-mutations
#1
Brian J McMillan, Brandon Zimmerman, Emily D Egan, Michael Lofgren, Xiang Xu, Anthony Hesser, Stephen C Blacklow
Protein O-fucosyltransferase-1 (POFUT1), which transfers fucose residues to acceptor sites on serine and threonine residues of epidermal growth factor-like repeats of recipient proteins, is essential for Notch signal transduction in mammals. Here, we examine the consequences of POFUT1 loss on the oncogenic signaling associated with certain leukemia-associated mutations of human Notch1, report the structures of human POFUT1 in free and GDP-fucose bound states, and assess the effects of Dowling-Degos mutations on human POFUT1 function...
March 17, 2017: Glycobiology
https://www.readbyqxmd.com/read/28334792/gwas-identifies-population-specific-new-regulatory-variants-in-fut6-associated-with-plasma-b12-concentrations-in-indians
#2
Suraj S Nongmaithem, Charudatta V Joglekar, Ghattu V Krishnaveni, Sirazul A Sahariah, Meraj Ahmad, Swetha Ramachandran, Meera Gandhi, Harsha Chopra, Anand Pandit, Ramesh D Potdar, Caroline Hd Fall, Chittaranjan S Yajnik, Giriraj R Chandak
Vitamin B12 is an important cofactor in one-carbon metabolism whose dysregulation is associated with various clinical conditions. Indians have a high prevalence of B12 deficiency but little is known about the genetic determinants of circulating B12 concentrations in Indians. We performed a genome-wide association study in 1001 healthy participants in the Pune Maternal Nutrition Study (PMNS), replication studies in 3418 individuals from other Indian cohorts and by meta-analysis identified new variants, rs3760775 (p = 1...
February 27, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28332312/antitumor-activity-of-chlpmab-2-a-human-mouse-chimeric-cancer-specific-antihuman-podoplanin-antibody-via-antibody-dependent-cellular-cytotoxicity
#3
Mika K Kaneko, Shinji Yamada, Takuro Nakamura, Shinji Abe, Yasuhiko Nishioka, Akiko Kunita, Masashi Fukayama, Yuki Fujii, Satoshi Ogasawara, Yukinari Kato
Human podoplanin (hPDPN), a platelet aggregation-inducing transmembrane glycoprotein, is expressed in different types of tumors, and it binds to C-type lectin-like receptor 2 (CLEC-2). The overexpression of hPDPN is involved in invasion and metastasis. Anti-hPDPN monoclonal antibodies (mAbs) such as NZ-1 have shown antitumor and antimetastatic activities by binding to the platelet aggregation-stimulating (PLAG) domain of hPDPN. Recently, we developed a novel mouse anti-hPDPN mAb, LpMab-2, using the cancer-specific mAb (CasMab) technology...
March 23, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28287404/mutations-in-%C3%AE-secretase-subunit-encoding-psenen-underlie-dowling-degos-disease-associated-with-acne-inversa
#4
Damian J Ralser, F Buket Ü Basmanav, Aylar Tafazzoli, Jade Wititsuwannakul, Sarah Delker, Sumita Danda, Holger Thiele, Sabrina Wolf, Michélle Busch, Susanne A Pulimood, Janine Altmüller, Peter Nürnberg, Didier Lacombe, Uwe Hillen, Jörg Wenzel, Jorge Frank, Benjamin Odermatt, Regina C Betz
Dowling-Degos disease (DDD) is an autosomal-dominant disorder of skin pigmentation associated with mutations in keratin 5 (KRT5), protein O-fucosyltransferase 1 (POFUT1), or protein O-glucosyltransferase 1 (POGLUT1). Here, we have identified 6 heterozygous truncating mutations in PSENEN, encoding presenilin enhancer protein 2, in 6 unrelated patients and families with DDD in whom mutations in KRT5, POFUT1, and POGLUT1 have been excluded. Further examination revealed that the histopathologic feature of follicular hyperkeratosis distinguished these 6 patients from previously studied individuals with DDD...
March 13, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28286292/metabolic-engineering-of-escherichia-coli-for-the-production-of-2-fucosyllactose-and-3-fucosyllactose-through-modular-pathway-enhancement
#5
Di Huang, Kexin Yang, Jia Liu, Yingying Xu, Yuanyuan Wang, Ru Wang, Bin Liu, Lu Feng
Fucosyllactoses, including 2'-fucosyllactose (2'-FL) and 3-fucosyllactose (3-FL), are important oligosaccharides in human milk that are commonly used as nutritional additives in infant formula due to their biological functions, such as the promotion of bifidobacteria growth, inhibition of pathogen infection, and improvement of immune response. In this study, we developed a synthetic biology approach to promote the efficient biosynthesis of 2'-FL and 3-FL in engineered Escherichia coli. To boost the production of 2'-FL and 3-FL, multiple modular optimization strategies were applied in a plug-and-play manner...
March 9, 2017: Metabolic Engineering
https://www.readbyqxmd.com/read/28284868/development-of-%C3%AE-1-6-fucosyltransferase-inhibitors-through-the-diversity-oriented-syntheses-of-gdp-fucose-mimics-using-the-coupling-between-alkyne-and-sulfonyl-azide
#6
Yoshiyuki Manabe, Satomi Kasahara, Yohei Takakura, Xiaoxiao Yang, Shinji Takamatsu, Yoshihiro Kamada, Eiji Miyoshi, Daisuke Yoshidome, Koichi Fukase
We developed α1,6-fucosyltransferase (FUT8) inhibitors through a diversity-oriented synthesis. The coupling reaction between the fucose unit containing alkyne and the guanine unit containing sulfonyl azide under various conditions afforded a series of Guanosine 5'-diphospho-β-l-fucose (GDP-fucose) analogs. The synthesized compounds displayed FUT8 inhibition activity. A docking study revealed that the binding mode of the inhibitor synthesized with FUT8 was similar to that of GDP-fucose.
February 28, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28267695/potential-biomarkers-in-lewis-negative-patients-with-pancreatic-cancer
#7
Guopei Luo, Chen Liu, Meng Guo, He Cheng, Yu Lu, Kaizhou Jin, Liang Liu, Jiang Long, Jin Xu, Renquan Lu, Quanxing Ni, Xianjun Yu
OBJECTIVE: To examine potential biomarkers in Lewis negative patients with pancreatic cancer. BACKGROUND: Carbohydrate antigen 19-9 (CA19-9) is currently the most important and widely used biomarker in pancreatic cancer. However, approximately 5 to 10% of the population are Lewis negative individuals, and they are documented to have scarce or no CA19-9 secretion. Therefore, it is necessary to explore potential biomarkers to compensate for this drawback. METHODS: Lewis genotypes were determined in a large cohort of patients with pancreatic cancer (682 cases) and controls (525 cases) by sequencing the Fucosyltransferase 3 (FUT3) gene from genomic DNA...
April 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28265002/deletion-of-pofut1-in-mouse-skeletal-myofibers-induces-muscle-aging-related-phenotypes-in-cis-and-in-trans
#8
Deborah A Zygmunt, Neha Singhal, Mi-Lyang Kim, Megan L Cramer, Kelly E Crowe, Rui Xu, Ying Jia, Jessica Adair, Isabel Martinez-Pena Y Valenzuela, Mohammed Akaaboune, Peter White, Paulus M Janssen, Paul T Martin
Sarcopenia, the loss of muscle mass and strength during normal aging, involves coordinate changes in skeletal myofibers and the cells that contact them, including satellite cells and motor neurons. Here we show that Protein O-fucosyltransferase 1 (Pofut1), a gene that encodes a glycosyltransferase required for NotchR-mediated cell-cell signaling, has reduced expression in aging skeletal muscle. Moreover, premature postnatal deletion of Pofut1 in skeletal myofibers can induce aging-related phenotypes in cis within skeletal myofibers and in trans within satellite cells and within motor neurons via the neuromuscular junction...
March 6, 2017: Molecular and Cellular Biology
https://www.readbyqxmd.com/read/28261212/%C3%AE-2%C3%A2-1-fructans-modulate-the-immune-system-in-vivo-in-a-microbiota-dependent-and%C3%A2-independent-fashion
#9
Floris Fransen, Neha M Sahasrabudhe, Marlies Elderman, Margaret Bosveld, Sahar El Aidy, Floor Hugenholtz, Theo Borghuis, Ben Kousemaker, Simon Winkel, Christa van der Gaast-de Jongh, Marien I de Jonge, Mark V Boekschoten, Hauke Smidt, Henk A Schols, Paul de Vos
It has been shown in vitro that only specific dietary fibers contribute to immunity, but studies in vivo are not conclusive. Here, we investigated degree of polymerization (DP) dependent effects of β2→1-fructans on immunity via microbiota-dependent and -independent effects. To this end, conventional or germ-free mice received short- or long-chain β2→1-fructan for 5 days. Immune cell populations in the spleen, mesenteric lymph nodes (MLNs), and Peyer's patches (PPs) were analyzed with flow cytometry, genome-wide gene expression in the ileum was measured with microarray, and gut microbiota composition was analyzed with 16S rRNA sequencing of fecal samples...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28244988/the-arabidopsis-o-fucosyltransferase-spindly-activates-nuclear-growth-repressor-della
#10
Rodolfo Zentella, Ning Sui, Benjamin Barnhill, Wen-Ping Hsieh, Jianhong Hu, Jeffrey Shabanowitz, Michael Boyce, Neil E Olszewski, Pei Zhou, Donald F Hunt, Tai-Ping Sun
Plant development requires coordination among complex signaling networks to enhance the plant's adaptation to changing environments. DELLAs, transcription regulators originally identified as repressors of phytohormone gibberellin signaling, play a central role in integrating multiple signaling activities via direct protein interactions with key transcription factors. Here, we found that DELLA is mono-O-fucosylated by the novel O-fucosyltransferase SPINDLY (SPY) in Arabidopsis thaliana. O-fucosylation activates DELLA by promoting its interaction with key regulators in brassinosteroid- and light-signaling pathways, including BRASSINAZOLE-RESISTANT1 (BZR1), PHYTOCHROME-INTERACTING-FACTOR3 (PIF3) and PIF4...
February 28, 2017: Nature Chemical Biology
https://www.readbyqxmd.com/read/28229927/alteration-of-n-glycan-expression-profile-and-glycan-pattern-of-glycoproteins-in-human-hepatoma-cells-after-hcv-infection
#11
Tian Xiang, Ganglong Yang, Xiaoyu Liu, Yidan Zhou, Zhongxiao Fu, Fangfang Lu, Jianguo Gu, Naoyuki Taniguchi, Zengqi Tan, Xi Chen, Yan Xie, Feng Guan, Xiao-Lian Zhang
BACKGROUND: Hepatitis C virus (HCV) infection causes chronic liver diseases, liver fibrosis and even hepatocellular carcinoma (HCC). However little is known about any information of N-glycan pattern in human liver cell after HCV infection. METHODS: The altered profiles of N-glycans in HCV-infected Huh7.5.1 cell were analyzed by using mass spectrometry. Then, lectin microarray, lectin pull-down assay, reverse transcription-quantitative real time PCR (RT-qPCR) and western-blotting were used to identify the altered N-glycosylated proteins and glycosyltransferases...
February 14, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28224772/effects-of-neutralization-by-soluble-abh-antigens-produced-by-transplanted-kidneys-from-abo-incompatible-secretor-donors
#12
Jieun Kim, Sinyoung Kim, In Sik Hwang, Jong Rak Choi, Jae Geun Lee, Yu Seun Kim, Myoung Soo Kim, Hyun Ok Kim
BACKGROUND: Grafts survive despite blood group antigens on the transplant being continuously exposed to antibodies in the blood of recipients in ABO-incompatible kidney transplantation (ABOi KT), owing to the mechanism of accommodation. We analyzed the immunodynamics of soluble ABH antigens in allografts from secretor donors and the influence of such immunodynamics on accommodation and subsequent graft survival in ABOi KT. METHODS: The genotype of a known human β-galactoside α-1,2-fucosyltransferase gene (FUT2), which determines soluble ABH antigen secretor status, was established in 32 donors for ABOi KT at the Severance Hospital, from June 2010 to July 2015...
May 2017: Annals of Laboratory Medicine
https://www.readbyqxmd.com/read/28223462/fallacy-of-the-unique-genome-sequence-diversity-within-single-helicobacter-pylori-strains
#13
Jenny L Draper, Lori M Hansen, David L Bernick, Samar Abedrabbo, Jason G Underwood, Nguyet Kong, Bihua C Huang, Allison M Weis, Bart C Weimer, Arnoud H M van Vliet, Nader Pourmand, Jay V Solnick, Kevin Karplus, Karen M Ottemann
Many bacterial genomes are highly variable but nonetheless are typically published as a single assembled genome. Experiments tracking bacterial genome evolution have not looked at the variation present at a given point in time. Here, we analyzed the mouse-passaged Helicobacter pylori strain SS1 and its parent PMSS1 to assess intra- and intergenomic variability. Using high sequence coverage depth and experimental validation, we detected extensive genome plasticity within these H. pylori isolates, including movement of the transposable element IS607, large and small inversions, multiple single nucleotide polymorphisms, and variation in cagA copy number...
February 21, 2017: MBio
https://www.readbyqxmd.com/read/28182762/longitudinal-change-of-selected-human-milk-oligosaccharides-and-association-to-infants-growth-an-observatory-single-center-longitudinal-cohort-study
#14
Norbert Sprenger, Le Ye Lee, Carlos Antonio De Castro, Philippe Steenhout, Sagar K Thakkar
BACKGROUND: Human milk is the recommended and sole nutrient source for newborns. One of the largest components of human milk is oligosaccharides (HMOs) with major constituents determined by the mother genotype for the fucosyltransferase 2 (FUT2, secretor) gene. HMO variation has been related with infant microbiota establishment, diarrhea incidence, morbidity and mortality, IgE associated eczema and body composition. OBJECTIVES: We investigated the (i) dependence of several major representative HMOs on the FUT2 status assessed through breast milk 2'Fucosyllactose (2'FL) and (ii) the relation of the 2'FL status with infant growth up to 4 months of life...
2017: PloS One
https://www.readbyqxmd.com/read/28172904/p763-fucosyltransferase-2-non-secretor-status-in-crohn-s-disease-a-prospective-observational-analysis
#15
R Battat, U Kopylov, W Afif, T Bessissow, J Byer, S Dionne, E Zelikovic, E Seidman, A Bitton
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28167958/association-of-fucosyltransferase-2-gene-polymorphisms-with-inflammatory-bowel-disease-in-patients-from-southeast-china
#16
Hao Wu, Liang Sun, Dao-Po Lin, Xiao-Xiao Shao, Sheng-Long Xia, Ming Lv
Aims. Fucosyltransferase 2 (FUT2) gene potentially affects the constituent of intestinal microbiota, which play a crucial role in the pathogenesis of inflammatory bowel disease (IBD). This study investigated the association of FUT2 gene polymorphisms with IBD in southeast China. Methods. We collected 671 IBD patients and 502 healthy controls. FUT2 gene polymorphisms (C357T, A385T, and G428A) were determined by SNaPshot. Frequencies of the FUT2 genotypes, alleles, and haplotype between groups were compared by χ(2) test...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/28160363/establishment-of-a-tobacco-by2-cell-line-devoid-of-plant-specific-xylose-and-fucose-as-a-platform-for-the-production-of-biotherapeutic-proteins
#17
Uri Hanania, Tami Ariel, Yoram Tekoah, Liat Fux, Maor Sheva, Yehuda Gubbay, Mara Weiss, Dina Oz, Yaniv Azulay, Albina Turbovski, Yehava Forster, Yoseph Shaaltiel
Plant produced glycoproteins contain N-linked glycans with plant-specific residues of β(1,2)-xylose and core α(1,3)-fucose, which do not exist in mammalian derived proteins. Although our experience with two enzymes that are used for enzyme replacement therapy (ERT) does not indicate that the plant sugar residues have deleterious effects, we made a conscious decision to eliminate these moieties from plant-expressed proteins. We knocked out the β(1,2)-xylosyltranferase (XylT) and the α(1,3)-fucosyltransferase (FucT) genes, using CRISPR/Cas9 genome editing, in Nicotiana...
February 3, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28103512/protein-o-fucosyltransferase-1-promotes-trophoblast-cell-proliferation-through-activation-of-mapk-and-pi3k-akt-signaling-pathways
#18
Chang Liu, Xiaohua Liang, Jiao Wang, Qin Zheng, Yue Zhao, Muhammad Noman Khan, Shuai Liu, Qiu Yan
Protein O-fucosylation is an important glycosylation modification and plays an important role in embryonic development. Protein O-fucosyltransferase 1 (poFUT1) is an essential enzyme that catalyzes the synthesis of protein O-fucosylation. Our previous studies showed that poFUT1 promoted trophoblast cell migration and invasion at the fetal-maternal interface, but the role of poFUT1 in trophoblast cells proliferation remains unclear. Here, immunohistochemistry data showed that poFUT1 and PCNA levels were decreased in abortion patient's trophoblasts compared with women with normal pregnancies...
April 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28056490/knockout-of-the-primary-sclerosing-cholangitis-risk-gene-fut2-causes-liver-disease-in-mice
#19
Luca Maroni, Simon D Hohenester, Stan F J van de Graaf, Dagmar Tolenaars, Krijn van Lienden, Joanne Verheij, Marco Marzioni, Tom H Karlsen, Ronald P J Oude Elferink, Ulrich Beuers
The etiopathogenesis of primary sclerosing cholangitis (PSC) is unknown. Genetic variants of fucosyltransferase 2 (FUT2) have been identified in genome-wide association studies as risk factor for PSC. We investigated the role of Fut2 in murine liver pathophysiology by studying Fut2(-/-) mice. Fut2(-/-) mice were viable and fertile, had lower body weight than wild type (wt) littermates and grey fur, as described earlier. Half of the Fut2(-/-) mice showed serum bile salt levels 40 times higher than wt (Fut2(-/-)(high) ), whereas the remainder were normocholanemic (Fut2(-/-)(low) )...
January 5, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28026021/identification-of-a-novel-fut1-allele-with-two-mutations-in-a-chinese-para-bombay-individual
#20
Lixin Wang, Chunyan Huang, Zengzhen Wei, Jinzhe Tan, Li Qin, Li Tian
BACKGROUND: The para-Bombay phenotype often results from a silenced β-D-galactoside 2-α-fucosyltransferase 1 (FUT1) gene (h/h) but an active FUT2 (Se/Se or Se/se) gene. We identified a para-Bombay phenotype with two novel mutations in the FUT1 gene and homozygous mutated FUT2 (se(357, 385) /se(357, 385) ) genes. STUDY DESIGN AND METHODS: Red blood cell phenotype was detected by using a standard serologic technique. The entire coding regions of the FUT1 and FUT2 genes were amplified and direct sequenced using genomic DNA...
January 2017: Transfusion
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