DB03587 ChEBI Ref ebicite changed EBI ChEBI 17158 SMILES CC O C O MeSHName Methylglyoxal Section2 ... acid Methylglyoxal , also called pyruvaldehyde or 2 oxopropanal CH sub 3 sub CO CH O or C ..., so it is a di carbonyl compound. Methylglyoxal is both an aldehyde and a ketone . In organisms, methylglyoxal ... Y, Kimura A title Methylglyoxal and regulation of its metabolism in microorganisms journal Adv. Microb ... lipid peroxidation . However, the most important source is glycolysis . Here, methylglyoxal ..., two intermediates of glycolysis. Since methylglyoxal is highly Cytotoxicity cytotoxic , the body developed several detoxification mechanisms. One of these is the glyoxalase system . Methylglyoxal ... pmid 8359524 ref Why methylglyoxal is produced remains unknown, but several articles indicate it is involved in the formation of advanced glycation endproduct s AGEs . In fact, methylglyoxal is proven ... Onorato first6 J last7 Brownlee first7 M pmc 508666 ref In this process, methylglyoxal reacts with free ... by methylglyoxal in human metastatic melanoma cells. ref cite journal author Bair WB 3rd, Cabello ... levels, methylglyoxal has higher concentrations in diabetics , and has been linked to arterial atherogenesis . Damage by methylglyoxal to low density lipoprotein though glycation causes a fourfold ... by methylglyoxal increases arterial atherogenicity. A possible contributor to increased risk of cardiovascular ... Category Aldehydes Category Ketones Category Metabolism de Methylglyoxal lv Metilglioks ls nl Methylglyoxal ... more details
The methylglyoxal pathway is an offshoot of glycolysis found in some prokaryote s, which converts glucose into methylglyoxal and then into pyruvate . However unlike glycolysis the methylglyoxal pathway does not produce adenosine triphosphate , ATP. The pathway is named after the substrate methylglyoxal .... Methylglyoxal is, however, a reactive aldehyde that is very toxic to cells, it can inhibit growth ... process for the activation of the methylglyoxal pathway. The Methylglyoxal pathway Image Methylglyoxal pathway picture.png thumb right 350px The methylglyoxal pathway, Based on http mic.sgmjournals.org cgi reprint 151 3 707 Weber Figure 4, pg. 711 The methylglyoxal pathway is activated by the increased ... , lactic acid lactate , or glycerol . Methylglyoxal is formed from dihydroxyacetone phosphate DHAP by the enzyme methylglyoxal synthase , giving off a phosphate group. Methylglyoxal is then converted into two different products, either D lactate, and L lactate. Methylglyoxal reductase and aldehyde dehydrogenase convert methylglyoxal into lactaldehyde and, eventually, L lactate. If methylglyoxal enters ... and Regulation The potentially hazardous effects of methylglyoxal require regulation of the reactions with this substrate. Synthesis of methylglyoxal is regulated by levels of DHAP and phosphate concentrations. High concentrations of DHAP encourage methylglyoxal synthase to produce methylglyoxal, while high phosphate concentrations inhibit the enzyme, and therefore the production of more methylglyoxal ... isomerase Wikipedia Triosephosphate isomerase . Again, increased levels of DHAP activate methylglyoxal synthase and methylglyoxal production http mic.sgmjournals.org cgi reprint 151 3 707 Weber 711 13 . The oscillation of Methylglyoxal concentration in feast concentrations Jan Weber, Anke Kayser, and Ursula Rinas, performed an experiment to test what happened to the methylglyoxal pathway when E. coli was in the presence of a constantly high concentration of glucose. The concentration of methylglyoxal ... more details
enzyme Name methylglyoxal synthase EC number 4.2.3.3 CAS number 37279 01 9 IUBMB EC number 4 2 3 3 GO code 0008929 image width caption In enzymology , a methylglyoxal synthase EC number 4.2.3.3 is an enzyme that catalysis catalyzes the chemical reaction glycerone phosphate math rightleftharpoons math methylglyoxal phosphate Hence, this enzyme has one substrate biochemistry substrate , glycerone phosphate , and two product chemistry products , methylglyoxal and phosphate . This enzyme belongs to the family of lyase s, specifically those carbon oxygen lyases acting on phosphates. The systematic name of this enzyme class is glycerone phosphate phosphate lyase methylglyoxal forming . Other names in common use include methylglyoxal synthetase , and glycerone phosphate phospho lyase . This enzyme participates in pyruvate metabolism . Structural studies As of late 2007, 7 tertiary structure structures have been solved for this class of enzymes, with Protein Data Bank PDB accession codes PDB link 1B93 , PDB link 1EGH , PDB link 1IK4 , PDB link 1S89 , PDB link 1S8A , PDB link 1VMD , and PDB link 1WO8 . References reflist 1 cite journal author Cooper RA, Anderson A date 1970 title The formation and catabolism of methylglyoxal during glycolysis in Escherichia coli journal FEBS. Lett. volume 11 pages 273&ndash 276 pmid 11945504 doi 10.1016 0014 5793 70 80546 4 issue 4 cite journal author Hopper DJ, Cooper RA date 1971 title The regulation of Escherichia coli methylglyoxal synthase a new control site in glycolysis? journal FEBS. Lett. volume 13 pages 213&ndash 216 pmid 11945670 doi 10.1016 0014 5793 71 80538 0 issue 4 cite journal author Ray S, Ray M date 1981 title Isolation of methylglyoxal synthase from goat liver journal J. Biol. Chem. volume 256 pages 6230&ndash 3 pmid 7240200 issue 12 4.2 enzyme stub Category EC 4.2.3 Category Enzymes of known structure ... more details
Information Description The Glyoxalase pathway, Based on Weber, Figure 4, pg. 711 Source Uploaded by User Mfdevine as Image Methylglyoxal pathway picture.jpg Date Location Author User Mfdevine , modified and converted to PNG by User TimVickers Permission other versions PD release ... more details
enzyme Name methylglyoxal reductase NADPH dependent EC number 1.1.1.283 CAS number IUBMB EC number 1 1 1 283 GO code 0043892 image width caption In enzymology , a methylglyoxal reductase NADPH dependent EC number 1.1.1.283 is an enzyme that catalysis catalyzes the chemical reaction lactaldehyde NADP sup sup math rightleftharpoons math methylglyoxal NADPH H sup sup Thus, the two substrate biochemistry substrates of this enzyme are lactaldehyde and nicotinamide adenine dinucleotide phosphate NADP sup sup , whereas its 3 product chemistry products are methylglyoxal , nicotinamide adenine dinucleotide phosphate NADPH , and hydrogen ion H sup sup . This enzyme belongs to the family of oxidoreductase s, specifically those acting on the CH OH group of donor with NAD or NADP as acceptor. The systematic name of this enzyme class is lactaldehyde NADP oxidoreductase . Other names in common use include lactaldehyde dehydrogenase NADP , and Gre2 . References reflist 1 cite journal author Murata K, Fukuda Y, Simosaka M, Watanabe K, Saikusa T, Kimura A date 1985 title Metabolism of 2 oxoaldehyde in yeasts. Purification and characterization of NADPH dependent methylglyoxal reducing enzyme from Saccharomyces cerevisiae journal Eur. J. Biochem. volume 151 pages 631 636 pmid 3896793 doi 10.1111 j.1432 1033.1985.tb09151.x issue 3 cite journal author Johnston M, Chitnis PR, Kohl DH date 2003 title Associating protein activities with their genes rapid identification of a gene encoding a methylglyoxal reductase in the yeast Saccharomyces cerevisiae journal Yeast. volume 20 pages 545 554 pmid 12722185 doi 10.1002 yea.979 issue 6 1.1.1 enzyme stub Category EC 1.1.1 Category NADPH dependent enzymes Category Enzymes of unknown structure it Metilgliossale reduttasi NADPH dipendente ... more details
enzyme Name methylglyoxal reductase NADH dependent EC number 1.1.1.78 CAS number 37250 16 1 IUBMB EC number 1 1 1 78 GO code 0019170 image width caption In enzymology , a methylglyoxal reductase NADH dependent EC number 1.1.1.78 is an enzyme that catalysis catalyzes the chemical reaction R lactaldehyde NAD sup sup math rightleftharpoons math methylglyoxal NADH H sup sup Thus, the two substrate biochemistry substrates of this enzyme are R lactaldehyde and nicotinamide adenine dinucleotide NAD sup sup , whereas its 3 product chemistry products are methylglyoxal , nicotinamide adenine dinucleotide NADH , and hydrogen ion H sup sup . This enzyme belongs to the family of oxidoreductase s, specifically those acting on the CH OH group of donor with NAD or NADP as acceptor. The systematic name of this enzyme class is R lactaldehyde NAD oxidoreductase . Other names in common use include methylglyoxal reductase , and D lactaldehyde dehydrogenase . This enzyme participates in pyruvate metabolism . References reflist 1 cite journal author TING SM, MILLER ON, SELLINGER OZ date 1965 title THE METABOLISM OF LACTALDEHYDE. VII. THE OXIDATION OF D LACTALDEHYDE IN RAT LIVER journal Biochim. Biophys. Acta. volume 97 pages 407&ndash 15 pmid 14323585 1.1.1 enzyme stub Category EC 1.1.1 Category NADH dependent enzymes Category Enzymes of unknown structure it Metilgliossale reduttasi dipendente da NAD ja NADPH ... more details
MGO may refer to Magnesium oxide , the chemical formula MgO Methylglyoxal , abbreviated MGO Metal Gear Online , a PlayStation 3 online multiplayer spin off of the Metal Gear video game series Master General of the Ordnance , was a very senior British military position before 1855 M145 Machine Gun Optic disambig es MGO eo MGO it MGO ... more details
DISPLAYTITLE C sub 3 sub H sub 4 sub O sub 2 sub C sub 3 sub H sub 4 sub O sub 2 sub may refer to Compounds sharing the molecular formula Acrylic acid Malondialdehyde Methylglyoxal 3 Oxetanone Propiolactone isomers Alpha Propiolactone Propiolactone Beta Propiolactone Propiolactone MolFormDisambig heading 3 el C3H4O2 fr C3H4O2 lv C3h4o2 ... more details
The glyoxalase system is a set of enzymes that carry out the detoxification of methylglyoxal and the other reactive aldehyde s that are produced as a normal part of metabolism . ref Vander Jagt, D. 1989 . The glyoxalase system . In Glutathione Chemical, Biochemical and Medical Aspects. Part A, D. Dolphin, R. Poulson, and O. Avramovic, eds. New York John Wiley & Sons , pp. 597 641. ref This system has been studied in both bacteria and eukaryote s. ref cite journal author Dixon DP, Cummins L, Cole DJ, Edwards R title Glutathione mediated detoxification systems in plants journal Curr. Opin. Plant Biol. volume 1 issue 3 pages 258 66 year 1998 pmid 10066594 doi 10.1016 S1369 5266 98 80114 3 ref ref cite journal author Inoue Y, Kimura A title Methylglyoxal and regulation of its metabolism in microorganisms journal Adv. Microb. Physiol. volume 37 issue pages 177 227 year 1995 pmid 8540421 doi 10.1016 S0065 2911 08 60146 0 ref This detoxification is accomplished by the sequential action of two thiol dependent enzymes firstly Lactoylglutathione lyase glyoxalase , which catalyses the isomerisation of the spontaneously formed hemithioacetal adduct between GSH and 2 oxoaldehydes such as methylglyoxal into S 2 hydroxyacylglutathione. ref cite journal author Thornalley PJ title Glyoxalase I structure, function and a critical role in the enzymatic defence against glycation journal Biochem. Soc. Trans. volume 31 issue Pt 6 pages 1343 8 year 2003 pmid 14641060 url http www.biochemsoctrans.org bst 031 1343 bst0311343.htm doi 10.1042 BST0311343 ref ref cite journal author Creighton DJ, Hamilton DS title Brief history of glyoxalase I and what we have learned about metal ion dependent, enzyme catalyzed isomerizations journal Arch. Biochem. Biophys. volume 387 issue 1 pages 1 10 year 2001 pmid 11368170 doi 10.1006 abbi.2000.2253 ref Secondly, Hydroxyacylglutathione hydrolase glyoxalase hydrolyses these thiolesters and in the case of methylglyoxal catabolism, produces D lactate and GSH ... more details
enzyme Name 2 oxoaldehyde dehydrogenase NAD EC number 1.2.1.23 CAS number 37250 91 2 IUBMB EC number 1 2 1 23 GO code 0047551 image width caption In enzymology , a 2 oxoaldehyde dehydrogenase NAD EC number 1.2.1.23 is an enzyme that catalysis catalyzes the chemical reaction a 2 oxoaldehyde NAD sup sup H sub 2 sub O math rightleftharpoons math a 2 oxo acid NADH H sup sup The 3 substrate biochemistry substrates of this enzyme are 2 oxoaldehyde , nicotinamide adenine dinucleotide NAD sup sup , and water H sub 2 sub O , whereas its 3 product chemistry products are 2 oxo acid , nicotinamide adenine dinucleotide NADH , and hydrogen ion H sup sup . This enzyme belongs to the family of oxidoreductase s, specifically those acting on the aldehyde or oxo group of donor with NAD or NADP as acceptor. The systematic name of this enzyme class is 2 oxoaldehyde NAD 2 oxidoreductase . Other names in common use include alpha ketoaldehyde dehydrogenase , methylglyoxal dehydrogenase , NAD linked alpha ketoaldehyde dehydrogenase , 2 ketoaldehyde dehydrogenase , NAD dependent alpha ketoaldehyde dehydrogenase , and 2 oxoaldehyde dehydrogenase NAD . This enzyme participates in pyruvate metabolism . References reflist 1 cite journal author Monder C date 1967 title Alpha keto aldehyde dehydrogenase, an enzyme that catalyzes the enzymic oxidation of methylglyoxal to pyruvate journal J. Biol. Chem. volume 242 pages 4603&ndash 9 pmid 4383524 issue 20 cite journal author Ray M, Ray S date 1982 title On the interaction of nucleotides and glycolytic intermediates with NAD linked alpha ketoaldehyde dehydrogenase journal J. Biol. Chem. volume 257 pages 10571&ndash 4 pmid 7107626 issue 18 cite journal author Ray S, Ray M date 1982 title Purification and characterization of NAD and NADP linked alpha ketoaldehyde dehydrogenases involved in catalyzing the oxidation of methylglyoxal to pyruvate journal J. Biol. Chem. volume 257 pages 10566&ndash 70 pmid 7107625 issue 18 1.2 enzyme stub Category EC 1.2.1 C ... more details
chembox Watchedfields changed verifiedrevid 443913346 ImageFileL1 lactaldehyde.png ImageSizeL1 110 ImageNameL1 Skeletal formula ImageFileR1 Lactaldehyde 3D balls.png ImageSizeR1 130 ImageNameR1 Ball and stick model IUPACName 2 Hydroxypropanal OtherNames Hydroxypropionaldehyde Section1 Chembox Identifiers KEGG Ref keggcite correct kegg KEGG C05999 InChI 1 C3H6O2 c1 3 5 2 4 h2 3,5H,1H3 InChIKey BSABBBMNWQWLLU UHFFFAOYAY StdInChI Ref stdinchicite correct chemspider StdInChI 1S C3H6O2 c1 3 5 2 4 h2 3,5H,1H3 StdInChIKey Ref stdinchicite correct chemspider StdInChIKey BSABBBMNWQWLLU UHFFFAOYSA N CASNo 598 35 6 CASNo Ref cascite correct CAS CASNo1 3946 09 6 CASNo1 Ref cascite correct CAS CASNo1 Comment R CASNo2 3913 64 2 CASNo2 Ref cascite correct CAS CASNo2 Comment S PubChem 855 ChemSpiderID Ref chemspidercite correct chemspider ChemSpiderID 832 ChEBI Ref ebicite correct EBI ChEBI 18419 SMILES O CC O C Section2 Chembox Properties C 3 H 6 O 2 Appearance Density MeltingPt BoilingPt Solubility Section3 Chembox Related Function aldehydes OtherFunctn Glycolaldehyde br 3 Hydroxybutanal Lactaldehyde is an intermediate in the Methylglyoxal pathway methylglyoxal metabolic pathway . Methylglyoxal is converted to small D small lactaldehyde by glycerol dehydrogenase gldA . Lactaldehyde is then oxidized to lactic acid by aldehyde dehydrogenase . ref cite journal author Huang PC, Miller ON title The metabolism of lactaldehyde, page 205 journal J. Biol. Chem. volume 231 issue 1 pages 201 5 year 1958 pmid 13538961 doi url http www.jbc.org content 231 1 201.full.pdf ref Lactaldehyde exists in several forms in open chain form and as cyclic hemiacetal in solution and in crystal forms as monomer and as Dimer chemistry dimer . In crystal form, three conformer s occur as hemiacetal dimers with a 1,4 dioxane ring skeleton. In equilibrium solution, negligibly small amounts of the monomer and at least one five membered ring dimer exist. ref cite journal doi 10.1016 0584 8539 83 80108 1 title Conf ... more details
enzyme Name 2 oxoaldehyde dehydrogenase NADP EC number 1.2.1.49 CAS number 83588 97 0 IUBMB EC number 1 2 1 49 GO code 0047552 image width caption No footnotes date October 2008 In enzymology , a 2 oxoaldehyde dehydrogenase NADP EC number 1.2.1.49 is an enzyme that catalysis catalyzes the chemical reaction a 2 oxoaldehyde NADP sup sup H sub 2 sub O math rightleftharpoons math a 2 oxo acid NADPH H sup sup The 3 substrate biochemistry substrates of this enzyme are 2 oxoaldehyde , nicotinamide adenine dinucleotide phosphate NADP sup sup , and water H sub 2 sub O , whereas its 3 product chemistry products are 2 oxo acid , nicotinamide adenine dinucleotide phosphate NADPH , and hydrogen ion H sup sup . This enzyme belongs to the family of oxidoreductase s, specifically those acting on the aldehyde or oxo group of donor with NAD or NADP as acceptor. The systematic name of this enzyme class is 2 oxoaldehyde NADP 2 oxidoreductase . Other names in common use include alpha ketoaldehyde dehydrogenase , methylglyoxal dehydrogenase , NADP linked alpha ketoaldehyde dehydrogenase , 2 ketoaldehyde dehydrogenase , NADP dependent alpha ketoaldehyde dehydrogenase , and 2 oxoaldehyde dehydrogenase NADP . This enzyme participates in pyruvate metabolism . References reflist 1 cite journal author Ray M, Ray S date 1982 title On the interaction of nucleotides and glycolytic intermediates with NAD linked alpha ketoaldehyde dehydrogenase journal J. Biol. Chem. volume 257 pages 10571&ndash 4 pmid 7107626 issue 18 cite journal author Ray S, Ray M date 1982 title Purification and characterization of NAD and NADP linked alpha ketoaldehyde dehydrogenases involved in catalyzing the oxidation of methylglyoxal to pyruvate journal J. Biol. Chem. volume 257 pages 10566&ndash 70 pmid 7107625 issue 18 Category EC 1.2.1 Category NADPH dependent enzymes Category Enzymes of unknown structure 1.2 enzyme stub it 2 ossoaldeide deidrogenasi NADP ja 2 NADP ... more details
between a glutathione glutathionyl group and aldehyde s such as methylglyoxal . ref cite journal author ... ref glutathione methylglyoxal math rightleftharpoons math hemithioacetal adduct math rightleftharpoons ... methylglyoxal lyase isomerizing glutathione forming other names include methylglyoxalase , aldoketomutase , ketone aldehyde mutase , and R S lactoylglutathione methylglyoxal lyase isomerizing . In some ... , a critical two step detoxification system for methylglyoxal . Methylglyoxal is produced naturally ... shifts two hydrogen atoms from one carbon atom of the methylglyoxal to the adjacent carbon atom ... have merged into a monomer in yeast , through gene duplication . Detoxification of methylglyoxal and other physiological roles Image Pyruvaldehyde.svg thumb 120px left Methylglyoxal . The principal physiological function of glyoxalase I is the detoxification of methylglyoxal , a reactive 2 oxoaldehyde ... publisher Academic Press location London pages 177&ndash 227 ref Methylglyoxal is a by product of normal ... title Methylglyoxal modification of protein. Chemical and immunochemical characterization of methylglyoxal ... journal Chem. Biol. Interact. volume 112&ndash 112 pages 137&ndash 151 ref Methylglyoxal is formed spontaneously from dihydroxyacetone phosphate, enzymatically by triosephosphate isomerase and methylglyoxal ... Thornalley PJ year 1996 title Pharmacology of Methylglyoxal Formation, Modification of Proteins ... methylglyoxal and other reactive 2 oxoaldehydes, the glyoxalase system has evolved. The methylglyoxal ... of glutathione on methylglyoxal into the product. Glyoxalase II hydrolyzes the product to re ... bi990696c pmid 10521255 ref Experiments suggest that methylglyoxal is preferentially toxic to proliferating ... 1968 title Cancerostatic action of methylglyoxal journal Science volume 160 pages 1140 doi 10.1126 science.160.3832.1140 ... year 1993 title Inhibition of proliferation of human leukemia 60 cells by methylglyoxal in vitro journal ... that the metal binds the two carbonyl oxygens of the methylglyoxal moiety at two of its coordination ... more details
enzyme Name Hydroxyacylglutathione hydrolase EC number 3.1.2.6 CAS number IUBMB EC number 3 1 2 6 GO code image width caption In enzymology , a Hydroxyacylglutathione hydrolase EC number 3.1.2.6 is an enzyme that catalysis catalyzes the chemical reaction R S lactoylglutathione water math rightleftharpoons math glutathione a 2 hydroxy carboxylate Hence, this enzyme has two substrate biochemistry substrate , R S lactoylglutathione and water, and two product chemistry products , glutathione and a 2 hydroxy carboxylate. With the common substrate methylglyoxal , the product is lactic acid D lactate . ref cite journal author Vander Jagt DL title Glyoxalase II molecular characteristics, kinetics and mechanism journal Biochem. Soc. Trans. volume 21 issue 2 pages 522 7 year 1993 pmid 8359524 ref This enzyme belongs to the family of hydrolase s, specifically the class of thioester lyases. This enzyme is commonly known as glyoxylase II . This enzyme participates in pyruvate metabolism . References reflist 1 cite journal author Ball JC, Vander Jagt DL title Purification of S 2 hydroxyacylglutathione hydrolase glyoxalase II from rat erythrocytes journal Anal. Biochem. volume 98 issue 2 pages 472 7 year 1979 pmid 496013 doi 10.1016 0003 2697 79 90169 6 hydrolase stub Category EC 3.1.2 Category Enzymes of known structure ... more details
carboxymethyllysine CML , and methylglyoxal MGO . ref cite journal author Peng X, Ma ... on the formation of specific advanced glycation endproducts and methylglyoxal induced impairment ... more details
thaliana with catalytic capacities to participate in the last reactions of the methylglyoxal and beta ... of methylglyoxal through the glyoxylase pathway References reflist 1 cite journal ... more details
forschung.php Monofloral honey types ref identified methylglyoxal as the active compound in Manuka ... mg of methylglyoxal per kilogram. ref cite web last Elvira Mavric, Silvia Wittmann, Gerold Barth and Thomas Henle first title Identification and quantification of methylglyoxal as the dominant antibacterial ... and quantification of methylglyoxal as the dominant antibacterial constituent of Manuka Leptospermum ... more details
Drugbox Watchedfields changed verifiedrevid 444738923 IUPAC name 2 E ,2 nowiki nowiki E 2,2 1 E ,2 E propane 1,2 diylidenedihydrazinecarboximidamide image mitoguazone.png image2 mitoguazone sf.gif Clinical data tradename pregnancy AU A B1 B2 B3 C D X pregnancy US A B C D X pregnancy category legal AU S2, S3, S4, S5, S6, S7, S8, S9 or Unscheduled legal CA Schedule I, II, III, IV, V, VI, VII, VIII legal UK GSL, P, POM, CD, or Class A, B, C legal US OTC Rx only Schedule I, II, III, IV, V legal status routes of administration Pharmacokinetic data bioavailability protein bound metabolism elimination half life excretion Identifiers CAS number 459 86 9 ATC prefix L01 ATC suffix XX16 PubChem 5351154 DrugBank Ref drugbankcite correct drugbank DrugBank UNII Ref fdacite correct FDA UNII OD5Q0L447W KEGG Ref keggcite correct kegg KEGG D07258 Chemical data C 5 H 12 N 8 molecular weight 184.20 g mol synonyms small 2 nowiki nowiki 1 E 1 Diaminomethylidenehydrazinylidene propan 2 ylidene amino guanidine small Mitoguazone also known as methylglyoxal bis guanylhydrazone or MGBG is a drug used in chemotherapy . Chemotherapeutic agents Category Guanidines Category Antineoplastic drugs antineoplastic drug stub ... more details
coord 50.239 5.005 display title Image Tregothnan Cornwall morris edited.jpg thumb 300px Tregothnan in the late 19th century. The Tregothnan Estate is located beside the village of St Michael Penkivel Convert 3 mi km south east of Truro in Cornwall , United Kingdom . The house and estate is the traditional home of the Edward Boscawen Boscawen family, and the seat of Viscount Falmouth Lord Falmouth . The original house was built in Plantagenet times and sacked in the English Civil War . The new house has the date 1652 carved in stone above the side gate. It was enlarged in the early 19th century to designs by William Wilkins architect William Wilkins , the architect of the National Gallery, London National Gallery in London . Tregothnan is famous for its large private botanical garden and arboretum . Tregothnan is not open to the public, but guided visits to the garden may be arranged. A tea plantation has recently been started on the grounds. Tregothnan is home to the first outdoor Camellias in the UK, around 1800. The first commercial tea was developed from Camellia sinensis in 2001. The first English tea was then sold in November 2005 to Fortnum and Mason of Piccadilly. ref http www.tregothnantea.com Tregothnan tea web page ref Also a quantity of custom made bee hives are situated in amongst Leptospermum Manuka Bushes producing Manuka honey with measurable methylglyoxal content. ref name NZ Herald 10573892 Tregothnan first grew Leptospermum in the botanical collection in the 1880 s and may have helped introduce the genus to the UK in its Wardian Case, thought to be the only surviving example of a Wardian Case in the World. The extensive garden is usually open for a weekend in the spring and has become a major fundraising event for charities. cite news url http www.nzherald.co.nz lifestyle news article.cfm?c id 6&objectid 10573892 title NZ beekeeper offers to test 13 tsp UK manuka honey date 22 May 2009 agency NZPA work The New Zealand Herald accessdate 24 November ... more details
to methylglyoxal and inorganic phosphate. The hydrogen bond between the enzyme and the phosphate ... enzyme catalysis Methylglyoxal is a toxin and, if formed, is removed through the glyoxalase system . ref ... bond and the substrate for the rest of glycolysis makes formation of methylglyoxal inefficient ... more details
chembox Watchedfields changed verifiedrevid 444049232 Name Phenylglyoxal ImageFile Phenylglyoxal.png ImageName Skeletal formula ImageFile1 Phenylglyoxal 3D balls.png ImageSize1 160px ImageName1 Ball and stick model IUPACName Phenylglyoxal OtherNames oxo phenyl acetaldehyde, 1 phenylethanedione, Section1 Chembox Identifiers UNII Ref fdacite correct FDA UNII N45G3015PA SMILES O C C O c1ccccc1 CASNo Ref cascite correct ?? CASNo 1075 06 5 CASOther monohydrate br 1074 12 0 anhydrous RTECS KM5775180 Section2 Chembox Properties C 8 H 6 O 2 MolarMass 134.13 g mol anhydrous Appearance yellow liquid anhydrous br white crystals hydrate Density ? g cm sup 3 sup Solubility forms the hydrate Solvent other solvents SolubleOther common organic solvents MeltingPt 76 79 C hydrate BoilingPt 63 65 0.5 mm, anhydrous Section7 Chembox Hazards ExternalMSDS MainHazards toxic and tastes terrible FlashPt RPhrases 22 36 37 38 SPhrases 22 26 36 Section8 Chembox Related Function aldehydes OtherFunctn 3,4 Dihydroxyphenylacetaldehyde br Methylglyoxal br Phenylacetaldehyde OtherCpds benzil br glyoxal br acetophenone Phenylglyoxal is the organic compound with the chemical formula formula C sub 6 sub H sub 5 sub C O C O H. It contains both an aldehyde and a ketone functional group . It is yellow liquid when anhydrous but readily forms a colorless crystalline hydrate. It has been used as a reagent to modify the amino acid , arginine . ref cite journal title The Reaction of Phenylglyoxal with Arginine Residues in Proteins author Kenji Takahashi volume 243 issue 23 pages 6171 9 journal J. Biol. Chem. url http www.jbc.org cgi content abstract 243 23 6171 pmid 5723461 year 1968 ref Properties Like some other aldehydes, phenylglyoxal polymerization polymerizes upon standing, as indicated by solidification of the liquid. Upon heating, this polymer cracks to give back the yellow aldehyde. Dissolution of phenylglyoxal in water gives crystals of the hydrate C sub 6 sub H sub 5 sub C O COH H sub 2 sub O C ... more details
Infobox scientist name Hans von Pechmann image Hans von Pechmann.jpg image size caption birth date 1 April 1850 birth place N rnberg residence Germany nationality German death date Death date and age 1902 4 19 1850 4 1 df y death place T bingen field organic chemistry work institution University of Munich University of T bingen alma mater University of Greifswald doctoral advisor Heinrich Limpricht doctoral students William Hobson Mills Julius B. Cohen known for Pechmann condensation Diazomethane prizes religion footnotes Hans von Pechmann N rnberg , April 1, 1850 T bingen , April 19, 1902 was a German chemist , renowned for his discovery of diazomethane in 1894. , ref cite journal author H. v. Pechmann title Ueber Diazomethan journal Berichte der deutschen chemischen Gesellschaft year 1894 volume 27 issue 2 pages 1888 1891 doi 10.1002 cber.189402702141 ref ref cite journal author H. v. Pechmann title Ueber Diazomethan journal Berichte der deutschen chemischen Gesellschaft year 1895 volume 28 issue 1 pages 855 861 doi 10.1002 cber.189502801189 ref Pechmann condensation ref cite journal author H. v. Pechmann, Carl Duisberg title Ueber die Verbindungen der Phenole mit Acetessig ther journal Berichte der deutschen chemischen Gesellschaft year 1883 volume 16 issue 1 pages 2119 2128 doi 10.1002 cber.188301602117 ref ref cite journal author H. v. Pechmann title Neue Bildungsweise der Cumarine. Synthese des Daphnetins journal Berichte der deutschen chemischen Gesellschaft year 1884 volume 17 issue 1 pages 929 936 doi 10.1002 cber.188401701248 ref and Pechmann pyrazole synthesis . ref cite journal author H. v. Pechmann title Pyrazol aus Acetylen und Diazomethan journal Berichte der deutschen chemischen Gesellschaft year 1898 volume 31 issue 3 pages 2950 2951 doi 10.1002 cber.18980310363 ref He also first prepared 1,2 diketone s e.g., diacetyl , acetonedicarboxylic acid , methylglyoxal and diphenyltriketone established the symmetrical structure of anthraquinone . Von Pechman ... more details
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