keyword
MENU ▼
Read by QxMD icon Read
search

Sulfotransferase

keyword
https://www.readbyqxmd.com/read/28821720/structural-basis-for-the-broad-substrate-specificity-of-the-human-tyrosylprotein-sulfotransferase-1
#1
Shinnosuke Tanaka, Toshiaki Nishiyori, Hidetaka Kojo, Reo Otsubo, Moe Tsuruta, Katsuhisa Kurogi, Ming-Cheh Liu, Masahito Suiko, Yoichi Sakakibara, Yoshimitsu Kakuta
Tyrosylprotein sulfotransferases (TPSTs) are enzymes that catalyze post-translational tyrosine sulfation of proteins. In humans, there are only two TPST isoforms, designated TPST1 and TPST2. In a previous study, we reported the crystal structure of TPST2, which revealed the catalytic mechanism of the tyrosine sulfation reaction. However, detailed molecular mechanisms underlying how TPSTs catalyse a variety of substrate proteins with different efficiencies and how TPSTs catalyze the sulfation of multiple tyrosine residues in a substrate protein remain unresolved...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28807679/identification-and-characterization-of-5%C3%AE-cyprinol-sulfating-cytosolic-sulfotransferases-sults-in-the-zebrafish-danio-rerio
#2
Katsuhisa Kurogi, Maki Yoshihama, Austin Horton, Isaac T Schiefer, Matthew D Krasowski, Lee R Hagey, Frederick E Williams, Yoichi Sakakibara, Naoya Kenmochi, Masahito Suiko, Ming-Cheh Liu
5α-Cyprinol 27-sulfate is the major biliary bile salt present in cypriniform fish including the zebrafish (Danio rerio). The current study was designed to identify the zebrafish cytosolic sulfotransferase (Sult) enzyme(s) capable of sulfating 5α-cyprinol and to characterize the zebrafish 5α-cyprinol-sulfating Sults in comparison with human SULT2A1. Enzymatic assays using zebrafish homogenates showed 5α-cyprinol-sulfating activity. A systematic analysis, using a panel of recombinant zebrafish Sults, revealed two Sult2 subfamily members, Sult2st2 and Sult2st3, as major 5α-cyprinol-sulfating Sults...
August 11, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28802998/on-the-sulfation-of-o-desmethyltramadol-by-human-cytosolic-sulfotransferases
#3
Mohammed I Rasool, Ahsan F Bairam, Katsuhisa Kurogi, Ming-Cheh Liu
BACKGROUND: Previous studies have demonstrated that sulfate conjugation is involved in the metabolism of the active metabolite of tramadol, O-desmethyltramadol (O-DMT). The current study aimed to systematically identify the human cytosolic sulfotransferases (SULTs) that are capable of mediating the sulfation of O-DMT. METHODS: The sulfation of O-DMT under metabolic conditions was demonstrated using HepG2 hepatoma cells and Caco-2 human colon carcinoma cells. O-DMT-sulfating activity of thirteen known human SULTs and four human organ specimens was examined using an established sulfotransferase assay...
February 16, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28797077/gender-difference-in-nash-susceptibility-roles-of-hepatocyte-ikk%C3%AE-and-sult1e1
#4
Noriko Matsushita, Mohamed T Hassanein, Marcos Martinez-Clemente, Raul Lazaro, Samuel W French, Wen Xie, Keane Lai, Michael Karin, Hidekazu Tsukamoto
Myeloid cell and hepatocyte IKKβ may mediate the genesis of obesity and insulin resistance in mice fed high fat diet. However, their gender-specific roles in the pathogenesis of non-alcoholic steatohepatitis (NASH) are not known. Here we demonstrate myeloid IKKβ deficiency prevents Western diet-induced obesity and visceral adiposity in females but not in males, and attenuates hyperglycemia, global IR, and NASH in both genders. In contrast, all metabolic sequela including NASH are aggravated by hepatocyte IKKβ deficiency (IkbkbΔhep) in male but not female mice...
2017: PloS One
https://www.readbyqxmd.com/read/28782626/%C3%AE-4-3-ketosteroids-as-a-new-class-of-substrates-for-the-cytosolic-sulfotransferases
#5
Takuyu Hashiguchi, Katsuhisa Kurogi, Takehiko Shimohira, Takamasa Teramoto, Ming-Cheh Liu, Masahito Suiko, Yoichi Sakakibara
Cytosolic sulfotransferase (SULT)-mediated sulfation is generally known to involve the transfer of a sulfonate group from the active sulfate, 3'-phosphoadenosine 5'-phosphosulfate (PAPS), to a hydroxyl group or an amino group of a substrate compound. We report here that human SULT2A1, in addition to being able to sulfate dehydroepiandrosterone (DHEA) and other hydroxysteroids, could also catalyze the sulfation of Δ(4)-3-ketosteroids, which carry no hydroxyl groups in their chemical structure. Among a panel of Δ(4)-3-ketosteroids tested as substrates, 4-androstene-3,17-dione and progesterone were found to be sulfated by SULT2A1...
August 3, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28770943/insights-into-the-role-of-3-o-sulfotransferase-in-heparan-sulfate-biosynthesis
#6
Maria Cecília Zorél Meneghetti, Tarsis Gesteira Ferreira, Alexandre Keiji Tashima, Suely F Chavante, Edwin Alexander Yates, Jian Liu, Helena Bonciani Nader, Marcelo A Lima
3-O-Sulfotransferase enzyme (sHS) from Litopenaeus vannamei was cloned and its substrate specificity was investigated against a number of GAG structures, including modified heparin polysaccharides and model oligosaccharides. For the heparin polysaccharides, derived from porcine intestinal mucosa heparin, sulfate groups were incorporated into glucosamine residues containing both N-sulfated and N-acetylated substitution within the regions of the predominant repeating disaccharide, either I-ANS or I-ANAc. However, the resulting polysaccharides did not stabilize antithrombin, which is correlated with anticoagulant activity...
August 16, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/28764905/comparison-of-short-and-long-term-exposure-effects-of-cruciferous-and-apiaceous-vegetables-on-carcinogen-metabolizing-enzymes-in-wistar-rats
#7
Jae Kyeom Kim, Noemia Strapazzon, Cynthia M Gallaher, Dwight R Stoll, William Thomas, Daniel D Gallaher, Sabrina P Trudo
Cruciferous and apiaceous vegetables may be chemopreventive due to their ability to modulate carcinogen-metabolizing enzymes but whether the effects on such enzymes are sustained over time is unknown. To examine the short- and long-term effects of the vegetables, rats were fed one of four diets for 7, 30, or 60 d: AIN-93G, CRU (21% cruciferous vegetables-fresh broccoli, green cabbage, watercress), API (9% apiaceous vegetables - fresh parsnips, celery), or API + CRU (10.5% CRU + 4.5% API). Although CRU increased activity and protein expression of cytochrome P450 (CYP) 1A1 and CYP1A2 after 7 d, only activity was sustained after 30 and 60 d...
July 29, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28762319/quantification-of-sulfotransferase-1a-isoforms-in-human-tissue-fractions-and-cell-lines-by-multiple-reaction-monitoring-mass-spectrometry
#8
Sho Yoshitake, Melissa McKay-Daily, Masaki Tanaka, Zeqi Huang
BACKGROUND: Within the sulfotransferase (SULT) superfamily of metabolic enzymes, the SULT1A family of cytosolic sulfotransferases is of particular interest, due to its ability to catalyze the sulfation of phenolic substrates. In humans, there are three distinct SULT1A enzymes: SULT1A1, SULT1A2, and SULT1A3/4. OBJECTIVE: To detect and quantify these enzymes in S9 fractions and cell lines using targeted mass spectrometry-based proteomics. METHOD: Samples were tryptically digested, and signature peptides were quantified using liquid chromatography-multiple reaction monitoring mass spectrometry (LC-MRM/MS)...
July 31, 2017: Drug Metabolism Letters
https://www.readbyqxmd.com/read/28761999/expression-of-chondroitin-4-o-sulfotransferase-in-escherichia-coli-and-pichia-pastoris
#9
Wenqin He, Yuanyuan Zhu, Abhijeet Shirke, Xiaojun Sun, Jian Liu, Richard A Gross, Mattheos A G Koffas, Robert J Linhardt, Ming Li
Chondroitin sulfates are linear sulfated polysaccharides called glycosaminoglycans. They are important nutraceutical and pharmaceutical products that are biosynthesized through the action of chondroitin sulfotransferases on either an unsulfated chondroitin or a dermatan polysaccharide precursor. While the enzymes involved in the biosynthesis of chondroitin sulfates are well known, the cloning end expression of these membrane-bound Golgi enzymes continue to pose challenges. The major chondroitin-4-sulfotransferase, Homo sapiens C4ST-1, had been previously cloned and expressed from mammalian CHO, COS-7, and HEK 293 cells, and its activity was shown to require glycosylation...
July 31, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28752602/alterations-in-the-steroid-biosynthetic-pathways-in-the-human-prefrontal-cortex-in-mood-disorders-a-postmortem-study
#10
Xin-Rui Qi, Sabina Luchetti, Ronald W H Verwer, Arja A Sluiter, Matthew R J Mason, Jiang-Ning Zhou, Dick F Swaab
Altered levels of steroids have been reported in the brain, cerebral spinal fluid and plasma of patients with mood disorders. Neuroimaging studies have reported both functional and structural alterations in mood disorders, for instance in the anterior cingulate cortex (ACC) and dorsolateral prefrontal cortex (DLPFC). In order to determine whether the endogenous production of steroids is altered in the ACC and DLPFC of patients with major depressive disorder (MDD) or bipolar disorder (BPD), quantitative real-time PCR was performed to detect mRNA expression level of key enzymes in the steroid biosynthetic pathways...
July 27, 2017: Brain Pathology
https://www.readbyqxmd.com/read/28736624/lyme-and-dopaminergic-function-hypothesizing-reduced-reward-deficiency-symptomatology-by-regulating-dopamine-transmission
#11
Kenneth Blum, Edward J Modestino, Marcelo Febo, Bruce Steinberg, Thomas McLaughlin, Lyle Fried, David Baron, David Siwicki, Rajendra D Badgaiyan
The principal vector of Lyme disease in the United States is Ixodes scapularis: black legged or deer ticks. There is increased evidence that those infected may be plagued by anxiety or depression as well. Researchers have identified transcripts coding for two putative cytosolic sulfotransferases in these ticks, which recognized phenolic monoamines as their substrates. It is hypothesized that protracted Lyme disease sequelae may be due to impairment of dopaminergic function of the brain reward circuitry. The subsequent recombinant proteins exhibited sulfotransferase function against two neurotransmitters: dopamine and octopamine...
May 2017: Journal of Systems and Integrative Neuroscience
https://www.readbyqxmd.com/read/28661152/profiles-and-gender-specifics-of-udp-glucuronosyltransferases-and-sulfotransferases-expressions-in-the-major-metabolic-organs-of-wild-type-and-efflux-transporter-knockout-fvb-mice
#12
Jiamei Chen, Haihui Zheng, Sijing Zeng, Cong Xie, Xiaoyan Li, Tongmeng Yan, Xia Gong, Linlin Lu, Xiaoxiao Qi, Ying Wang, Ming Hu, Lijun Zhu, Zhongqiu Liu
Hepatic and extrahepatic tissues participate in xenobiotic detoxication, carcinogen activation, prodrug processing, and estrogen regulation through UDP-glucuronosyltransferases (UGTs/Ugts) and sulfotransferases (SULTs/Sults). Wild-type (WT) and efflux transporter knockout (KO) FVB mice have been commonly used to perform the studies of pharmacokinetics, metabolism, and toxicity. We employed the developed UHPLC-MS/MS approach to gain systematic insight on gender-specific of Ugts and Sults in major metabolic organs...
July 17, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28657900/brain-ageing-changes-proteoglycan-sulfation-rendering-perineuronal-nets-more-inhibitory
#13
Simona Foscarin, Ruma Raha-Chowdhury, James W Fawcett, Jessica C F Kwok
Chondroitin sulfate (CS) proteoglycans in perineuronal nets (PNNs) from the central nervous system (CNS) are involved in the control of plasticity and memory. Removing PNNs reactivates plasticity and restores memory in models of Alzheimer's disease and ageing. Their actions depend on the glycosaminoglycan (GAG) chains of CS proteoglycans, which are mainly sulfated in the 4 (C4S) or 6 (C6S) positions. While C4S is inhibitory, C6S is more permissive to axon growth, regeneration and plasticity. C6S decreases during critical period closure...
June 28, 2017: Aging
https://www.readbyqxmd.com/read/28651046/heparan-sulfate-microarray-reveals-that-heparan-sulfate-protein-binding-exhibits-different-ligand-requirements
#14
Chengli Zong, Andre Venot, Xiuru Li, Weigang Lu, Wenyuan Xiao, Jo-Setti L Wilkes, Catherina L Salanga, Tracy M Handel, Lianchun Wang, Margreet A Wolfert, Geert-Jan Boons
Heparan sulfates (HS) are linear sulfated polysaccharides that modulate a wide range of physiological and disease-processes. Variations in HS epimerization and sulfation provide enormous structural diversity, which is believed to underpin protein binding and regulatory properties. The ligand requirements of HS-binding proteins have, however, been defined in only a few cases. We describe here a synthetic methodology that can rapidly provide a library of well-defined HS oligosaccharides. It is based on the use of modular disaccharides to assemble several selectively protected tetrasaccharides that were subjected to selective chemical modifications such as regioselective O- and N-sulfation and selective de-sulfation...
July 7, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28634336/lc-ms-ms-quantification-of-sulfotransferases-is-better-than-conventional-immunogenic-methods-in-determining-human-liver-sult-activities-implication-in-precision-medicine
#15
Cong Xie, Tong-Meng Yan, Jia-Mei Chen, Xiao-Yan Li, Juan Zou, Li-Jun Zhu, Lin-Lin Lu, Ying Wang, Fu-Yuan Zhou, Zhong-Qiu Liu, Ming Hu
This study aims to determine whether enzyme activities are correlated with protein amounts and mRNA expression levels of five major human sulfotransferase (SULT) enzymes in 10 matched pericarcinomatous and hepatocellular carcinoma liver samples. The MRM UHPLC-MS/MS method, Western blot and RT-PCR were used along with SULT activity measurement using probe substrates. The LC-MS/MS method was specific for all five tested SULTs, whereas Western blot was specific for only two isoforms. The activities of SULT1A1, SULT1B1, SULT1E1 and SULT2A1 in 9 of 10 samples showed a significant decrease in tumor tissues relative to matched pericarcinomatous tissues, whereas the activities of SULT1A3 in 7 of 10 samples increased...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28630292/tetrahydrobiopterin-regulates-monoamine-neurotransmitter-sulfonation
#16
Ian Cook, Ting Wang, Thomas S Leyh
Monoamine neurotransmitters are among the hundreds of signaling small molecules whose target interactions are switched "on" and "off" via transfer of the sulfuryl-moiety (-SO3) from PAPS (3'-phosphoadenosine 5'-phosphosulfate) to the hydroxyls and amines of their scaffolds. These transfer reactions are catalyzed by a small family of broad-specificity enzymes-the human cytosolic sulfotransferases (SULTs). The first structure of a SULT allosteric-binding site (that of SULT1A1) has recently come to light. The site is conserved among SULT1 family members and is promiscuous-it binds catechins, a naturally occurring family of flavanols...
July 3, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28616406/new-endoscopic-approach-of-anti-fibrotic-therapy-for-inflammatory-bowel-disease
#17
REVIEW
Kenji Suzuki, Hiroyuki Yoneyama
Fibrosis continues to be paid a great attention in not only basic research but also clinical practice, especially for the development of novel therapeutics in various fibrotic diseases. However, there remain several obstacles to translation in developing anti-fibrosis therapy. The present review documents our translational practice from target discovery to first-in-patient studies in the development of anti-fibrosis therapy for inflammatory bowel disease (IBD). First topic is a target selection. We have focused on the target that has an ability to regulate multifactorial cascades of fibrosis...
April 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28599481/prognostic-impact-of-carbohydrate-sulfotransferase-15-in-patients-with-pancreatic-ductal-adenocarcinoma
#18
Zensho Ito, Kazuki Takakura, Machi Suka, Tomoya Kanai, Ryota Saito, Shuichi Fujioka, Mikio Kajihara, Hiroyuki Yanagisawa, Takeyuki Misawa, Tadashi Akiba, Shigeo Koido, Toshifumi Ohkusa
Patients with pancreatic ductal adenocarcinoma (PDA) typically succumb to mortality early, even following surgical resection. Therefore, prognostic factors associated with early mortality are required to improve the survival of patients with PDA following surgical resection. Carbohydrate sulfotransferase 15 (CHST15) is responsible for the biosynthesis of sulfated chondroitin sulfate E (CS-E), which serves a pivotal function in cancer progression by cleaving CD44. CHST15 and CD44 expression in PDA tissue were assessed as a prognostic factor in patients with PDA following surgical resection...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28597227/a-hemoglobin-adduct-as-a-biomarker-for-the-internal-exposure-to-the-rodent-carcinogen-furfuryl-alcohol
#19
Benjamin Sachse, Jan Hielscher, Alfonso Lampen, Klaus Abraham, Bernhard H Monien
Furfuryl alcohol is a common food contaminant, which is formed by acid- and heat-catalyzed degradation of fructose and glucose. Its carcinogenic effect in rodents originates most likely from sulfotransferase (SULT)-catalyzed conversion into the mutagenic sulfate ester 2-sulfoxymethylfuran. In this study, a protein adduct biomarker was sought for the medium-term internal exposure to furfuryl alcohol. A UPLC-MS/MS screening showed that the adduct N-((furan-2-yl)methyl)-Val (FFA-Val) at the N-terminus of hemoglobin is a valid target analyte...
June 8, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28589969/combined-effects-of-nqo1-pro187ser-or-sult1a1-arg213his-polymorphism-and-smoking-on-bladder-cancer-risk-two-meta-analyses
#20
Xiao-Chun Wang, Jian Wang, Hui-Hui Tao, Chao Zhang, Li-Fa Xu
OBJECTIVES: Objectives: Cigarette smoking is the major risk factor of bladder cancer via exposure to chemical carcinogens. Nicotinamide adenine dinucleotide phosphate (NADP+): quinine oxidoreductase 1 (NQO1) and sulfotransferase 1A1 (SULT1A1) have been reported to involve in the metabolism of polycyclic aromatic hydrocarbons (PAHs) and aromatic amines. Therefore, the risk of bladder cancer (BC) may be influenced by polymorphisms in the genes that modulate metabolic detoxification in particular by interacting with cigarette smoking...
June 7, 2017: International Journal of Occupational Medicine and Environmental Health
keyword
keyword
101245
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"