chembox Verifiedfields changed Watchedfields changed verifiedrevid 384067967 Reference ref name Merck Merck Index , 11th Edition, 9974 ref ImageFile Xanthosin.svg ImageSize 160px IUPACName 9 2 R ,3 R ,4 S ,5 R 3,4 dihydroxy 5 hydroxymethyl oxolan 2 yl 3 H purine 2,6 dione OtherNames Xanthine riboside 9 beta small D small Ribofuranosylxanthine Section1 Chembox Identifiers CASNo Ref cascite correct ?? CASNo 146 80 5 PubChem 64959 ChEMBL Ref ebicite changed EBI ChEMBL 402439 SMILES C1 NC2 C N1 C H 3 C H C H C H O3 CO O O NC O NC2 O ChemSpiderID Ref chemspidercite changed chemspider ChemSpiderID 58484 SMILES O C3Nc1c ncn1 C H 2O C H C H O C H 2O CO C O N3 InChI 1 C10H12N4O6 c15 1 3 5 16 6 17 9 20 3 14 2 11 4 7 14 12 10 19 13 8 4 18 h2 3,5 6,9,15 17H,1H2, H2,12,13,18,19 t3 ,5 ,6 ,9 m1 s1 InChIKey UBORTCNDUKBEOP UUOKFMHZBM StdInChI Ref stdinchicite changed chemspider StdInChI 1S C10H12N4O6 c15 1 3 5 16 6 17 9 20 3 14 2 11 4 7 14 12 10 19 13 8 4 18 h2 3,5 6,9,15 17H,1H2, H2,12,13,18,19 t3 ,5 ,6 ,9 m1 s1 StdInChIKey Ref stdinchicite changed chemspider StdInChIKey UBORTCNDUKBEOP UUOKFMHZSA N Section2 Chembox Properties C 10 H 12 N 4 O 6 Appearance Density MeltingPt Decomposes when heated BoilingPt Solubility Sparingly soluble in cold water freely soluble in hot water Section3 Chembox Hazards MainHazards FlashPt Autoignition Xanthosine is a nucleoside derived from xanthine and ribose . See also Xanthosine monophosphate Xanthosine diphosphate Xanthosine triphosphate References reflist organic compound stub Category nucleosides Category Purines Category Ribosides de Xanthosin fa fr Xanthosine ... more details
YM Agar and Broth , is a selective growth medium with low pH useful for cultivating yeasts, molds, or other acid tolerant or acidophile acidophilic organisms, while deterring growth of most bacteria and other acid intolerant organisms. ref cite web url http www.bd.com ds technicalCenter inserts YM Agar.pdf title Xanthine Agar YM Agar YM Broth publisher Becton, Dickinson and Company accessdate 2008 07 13 ref It is Malt extract medium modified by the addition of Yeast extract and peptone. ref cite web url http books.google.com books?id qidom58x KkC&pg PT93&dq Wickerham YM media&sig ACfU3U0elDD0SvaSst9tyHiSaFNCOqGshw title Biodiversity and Ecophysiology of Yeasts The Yeast Handbook coauthors Carlos Rosa, G bor P ter accessdate 2008 07 13 ref The YM of the name stands either for Yeast and Mold , or Yeast extract Malt extract depending on the source. References reflist 2 Category Microbiology Category Growth media YM de YM Selektivn hrboden ... more details
chembox Verifiedfields changed UNII Ref fdacite changed FDA UNII 13G1DMN4P0 verifiedrevid 298647946 ImageFile Proxyphylline.png ImageSize 200px IUPACName 7 2 hydroxypropyl 1,3 dimethylpurine 2,6 dione OtherNames Section1 Chembox Identifiers CASNo Ref cascite correct ?? CASNo 603 00 9 PubChem 4977 ChEMBL Ref ebicite changed EBI ChEMBL 37390 SMILES CC CN1C NC2 C1C O N C O N2C C O ATCCode prefix R03 ATCCode suffix DA03 Section2 Chembox Properties Formula C sub 10 sub H sub 14 sub N sub 4 sub O sub 3 sub MolarMass 238.24316 Appearance Density MeltingPt BoilingPt Solubility Section3 Chembox Hazards MainHazards FlashPt Autoignition Proxyphylline is a xanthine derivative that acts as a cardiac stimulant , vasodilator and bronchodilator . ref Drugs.com http www.drugs.com international proxyphylline.html Proxyphylline ref References reflist Category Adenosine antagonists Category Xanthines respiratory system drug stub fa ... more details
Infobox protein family Symbol Xan ur permease Name Xan ur permease image width caption Pfam PF00860 Pfam clan CL0062 InterPro IPR006043 SMART PROSITE PDOC00860 MEROPS SCOP TCDB 2.A.40 OPM family 67 OPM protein 3qe7 CAZy CDD Nucleobase cation symporter 2 protein family represents a susbset of the wider Amino acid Polyamine organoCation superfamily molecular biology superfamily of membrane transporter protein transporter s. ref name pmid10931886 cite journal author Jack DL, Paulsen IT, Saier MH title The amino acid polyamine organocation APC superfamily of transporters specific for amino acids, polyamines and organocations journal Microbiology Reading, Engl. volume 146 Pt 8 issue pages 1797 814 year 2000 month August pmid 10931886 doi url ref Characterised protein s from this family include Xanthine permease PbuX, involved in cellualar xanthine transport ref name pmid9098051 cite journal author Christiansen LC, Schou S, Nygaard P, Saxild HH title Xanthine metabolism in Bacillus subtilis characterization of the xpt pbuX operon and evidence for purine and nitrogen controlled expression of genes involved in xanthine salvage and catabolism journal J. Bacteriol. volume 179 issue 8 pages 2540 50 year 1997 month April pmid 9098051 pmc 179002 doi url ref Uric acid permeases which promotes uptake of uric acid into the Cell biology cell in limiting nitrogen conditions ref name pmid11344136 cite journal author Schultz AC, Nygaard P, Saxild HH title Functional analysis of 14 genes that constitute the purine catabolic pathway in Bacillus subtilis and evidence for a novel regulon controlled by the PucR transcription activator journal J. Bacteriol. volume 183 issue 11 pages 3293 302 year 2001 month June pmid 11344136 pmc 99626 doi 10.1128 JB.183.11.3293 3302.2001 url ref Uracil permease ref name pmid8206848 cite journal author Ghim SY, Neuhard J title The pyrimidine biosynthesis operon of the thermophile Bacillus caldolyticus includes genes for uracil phosphoribosyltransferase and u ... more details
Drugbox Verifiedfields changed verifiedrevid 405783678 IUPAC name 3 propyl 7H purine 2,6 dione image Enprofylline.png width 200 Clinical data tradename pregnancy category legal AU legal CA legal UK legal US legal status routes of administration Pharmacokinetic data bioavailability protein bound metabolism elimination half life Identifiers CAS number Ref cascite correct ?? CAS number 41078 02 8 ATC prefix ATC suffix ATC supplemental PubChem 1676 DrugBank Ref drugbankcite changed drugbank DrugBank DB00824 ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 1613 UNII Ref fdacite changed FDA UNII DT7DT5E518 KEGG Ref keggcite correct kegg KEGG ChEBI Ref ebicite changed EBI ChEBI 126237 ChEMBL Ref ebicite changed EBI ChEMBL 279898 Chemical data C 8 H 10 N 4 O 2 molecular weight 194.190 g mol smiles O C2N c1ncnc1C O N2 CCC StdInChI Ref stdinchicite correct chemspider StdInChI 1S C8H10N4O2 c1 2 3 12 6 5 9 4 10 6 7 13 11 8 12 14 h4H,2 3H2,1H3, H,9,10 H,11,13,14 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey SIQPXVQCUCHWDI UHFFFAOYSA N Enprofylline 3 Propylxanthine is a xanthine derivative used in the treatment of asthma , which acts as a bronchodilator . It acts primarily as a competitive nonselective phosphodiesterase inhibitor with relatively little activity as a nonselective adenosine receptor antagonist. ref name pmid6288396 cite journal author Lunell E, Svedmyr N, Andersson KE, Persson CG title Effects of enprofylline, a xanthine lacking adenosine receptor antagonism, in patients with chronic obstructive lung disease journal European Journal of Clinical Pharmacology volume 22 issue 5 pages 395 402 year 1982 pmid 6288396 doi url ref ref name pmid3325233 cite journal author Laursen LC title Anti asthmatic effects and pharmacokinetics of enprofylline a new xanthine derivate journal Danish Medical Bulletin volume 34 issue 6 pages 289 97 year 1987 month December pmid 3325233 doi url ref References reflist Asthma and copd rx Adenosinergics Category Ad ... more details
orphan date April 2011 The Cooperstown cocktail ref Streetman D, Bleakley J et al. Combined phenotypic assessment of CYP1A2, CYP2C19, CYP2D6, CYP3A, N acetyltransferase 2, and xanthine oxidase with the Cooperstown cocktail . Clinical Pharmacology and Therapeutics. 2000 Oct 68 4 375 83. ref refers to a panel of four drug probes used in human pharmacokinetics pharmacokinetic studies to determine the activity of Drug metabolism drug metabolising enzymes. The terminology cocktail refers to the fact that the drug probes are given together. The Cooperstown cocktail consists of four drugs that are considered specific substrates for four cytochrome P450 CYP isoforms. One of the drugs caffeine provides, through its metabolites, substrates for two additional enzymes see next paragraph . The drugs and the enzymes they probe are as follows caffeine probes CYP1A2 , N acetyltransferase 2 , xanthine oxidase , midazolam probes CYP3A , omeprazole probes CYP2C19 and dextromethorphan probes CYP2D6 . After giving the cocktail, the concentrations of the drugs and their metabolites in plasma for midazolam and omeprazole and urine for caffeine and dextromethorphan are determined at various times. By analysing these concentrations, it is possible to determine the activity i.e. the phenotype of the relevant enzyme. Caffeine can be used as a probe for three different enzymes by measuring several of its urinary metabolites and comparing their relative concentrations. The Cooperstown 5 1 cocktail ref Chainuvati S, Nafziger A et al. Combined phenotypic assessment of cytochrome p450 1A2, 2C9, 2C19, 2D6, and 3A, N acetyltransferase 2, and xanthine oxidase activities with the Cooperstown 5 1 cocktail . Clinical Pharmacology and Therapeutics. 2003 Nov 74 5 437 47. ref , in addition to the four drug probes mentioned above, incorporates warfarin as well. Warfarin actually the S warfarin enantiomer is a specific probe for CYP2C9. The 1 refers to the vitamin K that is given together with the warfarin t ... more details
Therapeutic Effects of Xanthine Oxidase Inhibitors Renaissance Half a Century after the Discovery ... and is an enzyme inhibitor inhibitor of the enzyme xanthine oxidase . ref name pmid16507884 Xanthine oxidase is responsible for the successive oxidation of hypoxanthine and xanthine , resulting in the production ... to blocking uric acid production, inhibition of xanthine oxidase causes an increase in hypoxanthine and xanthine, which are converted to closely related purine ribotide s adenosine monophosphate adenosine ... by its target, xanthine oxidase , to its active metabolite oxypurinol , which is also an inhibitor of xanthine oxidase. Allopurinol is almost completely metabolized to oxypurinol within two hours of oral ... , due to inhibition of xanthine oxidase, which metabolizes these drugs. Allopurinol can lower ... KS, Abbady MI title Modulatory role of allopurinol on xanthine oxidoreductase system and antioxidant ... Category Xanthine oxidase inhibitors Category World Health Organization essential medicines ar ... more details
Homogenized milk and atherosclerosis are connected by the theory that the enzyme xanthine oxidase or XO ... by the locale of the initial, inflammatory event. ref Xanthine Oxidoreductase in Respiratory ... to diabetes mellitus diabetes and cancer . ref Elevated Levels of Xanthine Oxidase in Serum of Patients ... to a common treatment employing xanthine oxidase inhibitor s a.k.a. ORS Method . ref Something ... for healing processes to outpace oxidative stress . ref name ReferenceA Folic Acid and Xanthine ... disease The source of XO Xanthine oxidase XO is an important digestive enzyme in mammals ... Bovine Xanthine Oxidase 1980 Liposomes as Proposed Vehicle for the Persorption of Bovine Xanthine .... ref Specific antibodies immunoglobulin M IgM to cow s milk xanthine oxidase are measureable .... ref name Atherosclerotic Patients 1974, p 41 47 Immune Response to Bovine Xanthine Oxidase in Atherosclerotic .... ref name Acid a Xanthine Oxidase Inhibitor pp 250 251 Xanthine Oxidase Therapy by Pharmacological Doses of Folic Acid a Xanthine Oxidase Inhibitor, The Health Hazards of Milk, K.A. Oster, Edited by David ... A2 inhibitors and xanthine oxidase inhibitor s in therapy practical outgrowths of the XO ... of Bovine Milk Xanthine Oxidase in the Etiology of Atherosclerosis, C.J. Carr, K.D. Fisher, J.M. Talbot ... plaque. ref Bovine Milk Xanthine Oxidase, Blood Lipids and Coronary Plaques in Rabbits, Jour ... to the XO theory, homogenization allows it to happen. ref name Bovine Xanthine Oxidase 1980 Dairy ... tissues such as the brain following stroke or heart muscle following a heart attack. ref Xanthine ... Resonance Characterization of Vascular Xanthine and NAD P H Oxidase Activity in Patients with Coronary ... using xanthine oxidase inhibitor s. ref name Atherosclerosis PM The degree of effectiveness in ameliorating ... Effects of Xanthine Oxidase Inhibitors Renaissance Half a Century after the Discovery of Allopurinol ..., The National Cancer Institute, etc. ref Molecule of the Month Xanthine Oxidoreductase, RCSB PDB & Scripps ... more details
of gene expression Research Retrieved 13 December 2010. ref Hypoxanthine and xanthine are two of the many ... group with a carbonyl group . Hypoxanthine is produced from adenine, xanthine from guanine. ref ... on Earth , was published suggesting nucleobases such as adenine , guanine , xanthine , hypoxanthine ... Image Hypoxanthine.png 70px Chemical structure of hypoxanthine br Hypoxanthine Image Xanthine oriented.png 80px Chemical structure of xanthine br Xanthine Image 7methylguanine.png 86px Chemical ... more details
An oxidase is any enzyme that catalyst catalyzes an redox oxidation reduction reaction involving molecular oxygen O sub 2 sub as the electron acceptor. In these reactions, oxygen is reduced to water H sub 2 sub O or hydrogen peroxide H sub 2 sub O sub 2 sub . The oxidases are a subclass of the oxidoreductase s. Examples An important example is cytochrome c oxidase , the key enzyme that allows the body to employ oxygen in the generation of energy and the final component of the electron transfer chain . Other examples are glucose oxidase monoamine oxidase cytochrome P450 oxidase NADPH oxidase Xanthine oxidase L gulonolactone oxidase laccase lysyl oxidase Oxidase test main Oxidase test In microbiology , the oxidase test is used as a Phenotype phenotypic characteristic for the identification of bacteria l strains it determines whether a given bacterium produces cytochrome oxidases and therefore utilizes oxygen with an electron transfer chain . External links Catalase & Oxidase tests http www.tgw1916.net movies.html video MeshName Oxidase Enzymes Category Oxidoreductases ar ca Oxidasa et Oks daas es Oxidasa eu Oxidasa fr Oxydase io Oxidazo nl Oxidase ja pl Oksydazy pt Oxidase sv Oxidaser uk ... more details
Refimprove date December 2008 A caffeinated drink or caffeinated beverage is a drink which contains caffeine , a stimulant which is legal and popular in most developed countries. Caffeinated drinks are primarily coffee , tea , soft drink s, and energy drinks . Coffee and tea naturally contain caffeine , while many popular brands of cola have also used the stimulant as an ingredient. The consumption of caffeinated drinks over non caffeinated drinks is often intended purely for the effects of caffeine for instance, coffee with breakfast is typical for many people of Westernized societies, in order to wake oneself up . Increasingly, there are being commercially distributed drinks that contain guarana , a South American berry with a caffeine content about twice ref Bempong DK, Houghton PJ, Steadman K 1993 . The xanthine content of guarana and its preparations . Int. J. Pharmacog. 31 3 175 81. doi 10.3109 13880209309082937. ISSN 0925 1618. ref the amount in coffee beans. Many caffeinated drinks also have decaffeinated counterparts, for those who desire to limit their caffeine intake for one reason or another. See also Energy drink Josta References Reflist Category Non alcoholic beverages ... more details
GPT is an acronym which may refer to TOCright Biology Alanine transaminase or Glutamate Pyruvate Transaminase, an enzyme useful in a blood test Xanthine guanine phosphoribosyl transferase , an enzyme in purine metabolism Technology Green Power Tower , wind and solar power generator, uses its entire surface to collect wind and solar energy with much greater efficiency than windmills GUID Partition Table , the disk partitioning format commonly used by EFI compliant firmware Gallons Per Thousand, a unit of concentration , in gallons per thousand gallons Group Policy Template , a file system folder that includes policy data specified by .adm files Google Publisher Tag, a JavaScript tag embedded in HTML pages to display ads served with DFP by Google Companies General Property Trust , a property investment company in Australia GEC Plessey Telecommunications , a telecommunications manufacturer later known as Marconi Communications Other General Purpose Technology , an economic term that describes technologies with wide economic effect Paid to surf , or Get Paid To Gulfport Biloxi International Airport , with IATA airport code GPT Robert T. Craig scholar Grounded Practical Theory Grounded Practical Theory , a methodological approach to guide the development and assessment of normative Theories in the social sciences. disambig de GPT ko GPT it GPT ja GPT pl GPT ru GPT zh GPT ... more details
In medicinal chemistry , bioisosteres are substituent s or groups with similar physical or chemical properties which produce broadly similar biological properties to a chemical compound. In drug design , the purpose of exchanging one bioisostere for another is to enhance the desired biological or physical properties of a compound without making significant changes in chemical structure. The main use of this term and it techniques are related to pharmaceutical sciences. Bioisosterism is used to reduce toxicity or modify the activity of the lead compound, and may alter the metabolism of the lead. Examples For example, the replacement of a hydrogen atom with a fluorine atom at a site of metabolism metabolic oxidation in a drug candidate may prevent such metabolism from taking place. Because the fluorine atom is similar in size to the hydrogen atom the overall topology of the molecule is not significantly affected, leaving the desired biological activity unaffected. However, with a blocked pathway for metabolism, the drug candidate may have a longer half life. Procainamide , an amide , has a longer duration of action than Procaine , an ester , because of the isosteric replacement of the ester oxygen with a nitrogen atom ref Comprehensive Pharmacy Review, 6th edition, Leon Shargel, Alan H. Mutnick, p.264 ref . Alloxanthine is an inhibitor of xanthine oxidase . It is also an isostere of Xanthine , the normal substrate for the enzyme ref Comprehensive Pharmacy Review, 6th edition, Leon Shargel, Alan H. Mutnick, p.264 ref . There are many examples of bioisosteres, which may be equivalent in some instances but not in others depending on what factors are important in binding electronegativity, size, polarity etc. . So for instance a chlorine Cl group may often be replaced by a trifluoromethyl CF sub 3 sub group, or by a cyano C N group, but depending on the particular molecule used the substitution may result in little change in activity, or either increase or decrease affini ... more details
EU , Febutaz India and Uloric US is a urate lowering drug, an inhibitor of xanthine oxidase that is indicated ... Febuxostat is a non purine selective inhibitor of xanthine oxidase . It works by Enzyme inhibitor ... site on xanthine oxidase. Xanthine oxidase is needed to successively oxidize both hypoxanthine and xanthine to uric acid. Hence, febuxostat inhibits xanthine oxidase, therefore reducing production of uric acid. Febuxostat inhibits both, oxidized as well as reduced form of xanthine oxidase because of which ... preparations Category Antigout agents Category Xanthine oxidase inhibitors Category Thiazoles Category ... more details
For the rugby league footballer of the 1960s and 70s for Great Britain, England, Yorkshire, and Featherstone Rovers, see Malcolm Dixon rugby league Malcolm Mal Dixon Infobox scientist name Malcolm Dixon image malcolmdixon.jpg 175px image size 175px caption Malcolm Dixon 1899 1985 birth date 18 April 1899 birth place Cambridge , UK death date death date and age 1985 12 7 1899 4 18 df y death place Cambridge, UK residence UK nationality United Kingdom British ethnicity field Biochemistry work institutions University of Cambridge alma mater University of Cambridge doctoral advisor Frederick Hopkins doctoral students David E. Green known for author abbrev bot author abbrev zoo prizes religion Anglican footnotes Malcolm Dixon 18 April 1899 7 December 1985 was a British biochemist. He was born in Cambridge, UK to Allick Page and Caroline Dewe n e Mathews Dixon. ref http www.jstor.org pss 770048 ref He received his PhD in 1925, under Frederick Hopkins Frederick Gowland Hopkins at the University of Cambridge . He studied physical biochemistry , especially the purification of enzymes and the enzyme kinetics kinetics of enzyme catalyzed reactions. He studied the oxidation of glutathione and other thiols by molecular oxygen and measured the redox potential of the thiol disulfide system, also establishing that the oxidation of glutathione was catalyzed by trace metals. He investigated xanthine oxidase, and thereby established many aspects of the chemistry of dehydrogenases. He showed that the hydrogen peroxide formed in the reaction of xanthine oxidase with molecular oxygen inactivated the enzyme and that the inhibition could be relieved by the addition of catalase, thus helping to establish a biochemical role for the latter enzyme. Dixon published a series of papers on D amino acid oxidase , detailing the kinetics and thermodynamics of association of the coenzyme with the apoprotein , the substrate and inhibitor specificity, and the effect of pH on the kinetic constants. He wa ... more details
Infobox Disease Name Molybdenum cofactor deficiency Image Caption DiseasesDB 29905 ICD10 ICD9 ICDO OMIM 252150 MedlinePlus eMedicineSubj ped eMedicineTopic 2172 MeshID Molybdenum cofactor deficiency is a human disease in which the absence of molybdenum cofactor leads to accumulation of toxic levels of sulphite and neurological damage. Usually this leads to death within months of birth, due to the lack of active sulfite oxidase . Furthermore, a mutational block in molybdenum cofactor biosynthesis causes absence of enyzme activity of xanthine dehydrogenase oxidase and aldehyde oxidase . When caused by a mutation in the MOCS1 gene it is the type A variant. It can also be caused by a mutation in the MOCS2 gene or the GEPH gene. ref http www.ncbi.nlm.nih.gov pubmed 12754701 Mutations in the molybdenum cofactor biosynthetic genes MOCS1, MOCS2, and GEPH. ref As of 2010, there had been approximately 132 reported cases. ref name pmid17065069 cite journal author Ichida K, Aydin HI, Hosoyamada M, et al. title A Turkish case with molybdenum cofactor deficiency journal Nucleosides Nucleotides Nucleic Acids volume 25 issue 9 11 pages 1087 91 year 2006 pmid 17065069 doi 10.1080 15257770600894022 url ref It should not be confused with molybdenum deficiency . Diagnosis Diagnosis of Molybdenum cofactor deficiency includes early seizures, low blood levels of uric acid , and high levels of sulphite , xanthine , and uric acid in urine . Additionally, the disease produces characteristic MRI images that can aid in diagnosis. ref http www.imoa.info HSE environmental data biology molybdenum cofactor.html ref Breakthrough In 2009, Monash Children s Hospital at Southern Health in Melbourne, Australia reported that a patient known as Baby Z became the first person to be cured of molybdenum cofactor deficiency type A. The patient was treated with cyclic pyranopterin monophosphate cPMP , a precursor of the molybdenum cofactor . ref name news.com.au cite news title Doctor cures Baby Z of molybden ... more details
, such as xanthine oxidase , the metal is bound to one molybdopterin, whereas, in other enzymes ... 10 ref Although a tungsten containing xanthine dehydrogenase from bacteria has been found to contain ... title Selenium containing xanthine dehydrogenase from Eubacterium barkeri journal Eur. J. Biochem ... as cofactor or prosthetic group ref name gramene Cofactor of xanthine oxidase , DMSO reductase ... more details
A list of disease s in the English Wikipedia. DiseasesTOC X X chromosome, duplication Xq13 1 q21 1 X chromosome, monosomy Xp22 pter X chromosome, monosomy Xq28 X chromosome, trisomy Xp3 X chromosome, trisomy Xpter Xq13 X chromosome, trisomy Xq X chromosome, trisomy Xq25 X fragile site folic acid type Xa Xk Xanthic urolithiasis Xanthine oxydase deficiency Xanthinuria Xanthomatosis cerebrotendinous Xerocytosis, hereditary Xeroderma pigmentosum, type 1 Xeroderma pigmentosum, type 2 Xeroderma pigmentosum, type 3 Xeroderma pigmentosum, type 5 Xeroderma pigmentosum, type 6 Xeroderma pigmentosum, type 7 Xeroderma pigmentosum, variant type Xeroderma pigmentosum Xeroderma talipes enamel defects Xk aprosencephaly Xerophthalmia Xl X linked adrenal hypoplasia congenita X linked adrenoleukodystropy X linked alpha thalassemia mental retardation syndrome ATR X X linked dominant X linked ichthyosis X linked juvenile retinoschisis X linked juvenile retinoschisis X linked lymphoproliferative syndrome X linked mental retardation and macroorchidism X linked mental retardation associated with marXq2 X linked mental retardation Brooks type X linked mental retardation craniofacial abnormal microcephaly club X linked mental retardation De silva type X linked mental retardation Hamel type X linked mental retardation type Gustavson X linked mental retardation type Martinez X linked mental retardation type Raynaud X linked mental retardation type Schutz X linked mental retardation type Snyder X linked mental retardation type Wittner X linked mental retardation hypotonia X linked severe combined immunodeficiency X linked trait Xx Xy XX male syndrome XY Female XY gonadal agenesis syndrome DEFAULTSORT List Of Diseases X Category Lists of diseases X ... more details
Unreferenced auto yes date December 2009 Suicide inhibition , also known as suicide inactivation or mechanism based inhibition , is a form of irreversible enzyme inhibition that occurs when an enzyme binds a substrate analogue and forms an irreversible complex with it through a covalent bond during the normal catalysis reaction . The inhibitor binds to the active site where it is modified by the enzyme to produce a reactive group that reacts irreversibly to form a stable inhibitor enzyme complex. This usually uses a prosthetic group or a coenzyme , forming electrophilic alpha and beta unsaturated carbonyl compounds and imines. Examples Some clinical examples of suicide inhibitors include Penicillin , which inhibits DD transpeptidase from building bacterial cell wall s. Sulbactam , which prohibits penicillin resistant strains of bacteria from metabolizing penicillin. Allopurinol , which inhibits uric acid production by xanthine oxidase in the treatment of gout . Zidovudine AZT zidovudine and other chain terminating nucleoside analogues used to inhibit HIV 1 reverse transcriptase in the treatment of HIV AIDS . Eflornithine , one of the drugs used to treat African trypanosomiasis sleeping sickness is a suicide inhibitor of ornithine decarboxylase . 5 fluorouracil acts as a suicide inhibitor of thymidylate synthase during the synthesis of thymine from uridine. This reaction is crucial for the proliferation of cells, particularly those that are rapidly proliferating such as fast growing cancer tumors . By inhibiting this step, cells die from a Thymineless Death thymineless death because they have no thymine to create more DNA. This is often used in combination with Methotrexate , a potent inhibitor of dihydrofolate reductase enzyme. Exemestane , a drug used in the treatment of breast cancer, is an inhibitor of the aromatase enzyme. Rational drug design Suicide inhibitors are used in what is called rational drug design where the aim is to create a novel substrate, based o ... more details
Drugbox verifiedrevid 443357739 IUPAC name 8 chloro 1,3 dimethyl 7 H purine 2,6 dione image 8 Chlorotheophylline.svg Clinical data tradename pregnancy category legal status Rx only routes of administration Oral Pharmacokinetic data bioavailability metabolism elimination half life excretion Identifiers CAS number Ref cascite correct ?? CAS number 85 18 7 ATC prefix none ATC suffix PubChem 10661 DrugBank Ref drugbankcite correct drugbank DrugBank ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 10211 UNII Ref fdacite correct FDA UNII GE2UA340FM ChEBI Ref ebicite correct EBI ChEBI 59771 ChEMBL Ref ebicite correct EBI ChEMBL 88611 Chemical data C 7 H 7 Cl 1 N 4 O 2 molecular weight 214.61 g mol smiles O C2N c1nc Cl nc1C O N2C C InChI 1 C7H7ClN4O2 c1 11 4 3 9 6 8 10 4 5 13 12 2 7 11 14 h1 2H3, H,9,10 InChIKey RYIGNEOBDRVTHA UHFFFAOYAD StdInChI Ref stdinchicite correct chemspider StdInChI 1S C7H7ClN4O2 c1 11 4 3 9 6 8 10 4 5 13 12 2 7 11 14 h1 2H3, H,9,10 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey RYIGNEOBDRVTHA UHFFFAOYSA N 8 Chlorotheophylline , also known as 1,3 dimet hyl 8 chl oroxanthi ne , is a stimulant drug of the xanthine chemical class . It is combined with pharmaceutical drugs to form stable salts, such as dimenhydrinate . See also 8 Cyclopentyltheophylline 8 Phenyltheophylline Theophylline Caffeine References Reflist 2 Unreferenced date February 2010 Stimulants Adenosinergics DEFAULTSORT Chlorotheophylline, 8 Category Xanthines Category Organochlorides nervous system drug stub pt 8 Cloroteofilina ... more details
Distinguish aldehyde dehydrogenase enzyme Name Aldehyde oxidase EC number 1.2.3.1 CAS number 9029 07 6 IUBMB EC number 1 2 3 1 GO code 0004031 image width caption protein Name aldehyde oxidase 1 caption image width HGNCid 553 Symbol aldehyde oxidase 1 AOX1 AltSymbols EntrezGene 316 OMIM 602841 RefSeq NM 001159 UniProt Q06278 PDB ECnumber 1.2.3.1 Chromosome 2 Arm q Band 33 LocusSupplementaryData Aldehyde oxidase is an enzyme which generates carboxylic acid s from aldehyde s. ref name pmid16747217 cite journal author Gordon AH, Green DE, Subrahmanyan V title Liver aldehyde oxidase journal Biochem. J. volume 34 issue 5 pages 764 74 year 1940 month May pmid 16747217 pmc 1265340 doi url issn ref It catalyzes the conversion of an aldehyde in the presence of oxygen and water to an acid and hydrogen peroxide . an aldehyde H sub 2 sub O O sub 2 sub a carboxylate H sub 2 sub O sub 2 sub H sup sup The enzyme is a homodimer, and requires FAD , molybdenum and two 2FE 2S clusters as cofactor biochemistry cofactors . See also Aldehyde oxidase and xanthine dehydrogenase, a b hammerhead domain References Reflist External links MeshName Aldehyde oxidase Category EC 1.2.3 enzyme stub de Aldehydoxidase it Aldeide ossidasi ja ... more details
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