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Statements

Subject Item
dbr:Lac_operon
dbo:wikiPageWikiLink
dbr:Ortho-Nitrophenyl-β-galactoside
Subject Item
dbr:2-nitrophenylgalactoside
dbo:wikiPageWikiLink
dbr:Ortho-Nitrophenyl-β-galactoside
dbo:wikiPageRedirects
dbr:Ortho-Nitrophenyl-β-galactoside
Subject Item
dbr:C12H15NO8
dbo:wikiPageWikiLink
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dbo:wikiPageRedirects
dbr:Ortho-Nitrophenyl-β-galactoside
Subject Item
dbr:Ortho-Nitrophenyl-β-galactoside
rdf:type
yago:WikicatMolecularFormulas yago:MolecularFormula106817173 yago:Communication100033020 yago:Compound114818238 yago:PhysicalEntity100001930 n13:ChemicalObject yago:WikicatPhenolEthers dbo:ChemicalSubstance yago:Statement106722453 yago:Material114580897 yago:Element114840755 dbo:ChemicalCompound yago:Abstraction100002137 yago:Message106598915 wikidata:Q11173 yago:Part113809207 yago:Glycoside114887305 yago:Chemical114806838 yago:WikicatGlycosides yago:Substance100019613 yago:Quintessence114847103 yago:OrganicCompound114727670 owl:Thing yago:Matter100020827 yago:Nitrobenzene114963486 yago:WikicatNitrobenzenes yago:Formula106816935 yago:Relation100031921
rdfs:label
Ortho-nitrophényl-β-galactoside Ortho-Nitrophenyl-β-galactoside O-Nitrophenyl-β-D-galactopyranosid
rdfs:comment
ortho-Nitrophenyl-β-galactoside (ONPG) is a colorimetric and spectrophotometric substrate for detection of β-galactosidase activity. This compound is normally colorless. However, if β-galactosidase is present, it hydrolyzes the ONPG molecule into galactose and ortho-nitrophenol. The latter compound has a yellow color that can be used to check for enzyme activity by means of a colorimetric assay (at 420 nm wavelength). β-Galactosidase is required for lactose utilization, so the intensity of the color produced can be used as a measure of the enzymatic rate. L'orthonitrophényl-β-galactoside (ou 2-nitrophényl-β-D-galactopyrannoside, ONPG) est un hétéroside de type bêta-galactoside, dont l'aglycone est l' (ONP) et la partie glucidique est constituée par un galactose. L'ONPG est incolore. Son hydrolyse par une β-galactosidase libère du galactose et de l' (ONP), composé de couleur jaune en milieu alcalin. o-Nitrophenyl-β-D-galactopyranosid (ONPG) ist ein artifizielles Glycosid und chromogenes Substrat für β-Galactosidasen, z. B. das vom lacZ Gen von Escherichia coli codierte Enzym.
foaf:name
ortho-Nitrophenyl-β-galactoside
dbp:name
ortho-Nitrophenyl-β-galactoside
foaf:depiction
n23:ONPG_structure.png
dcterms:subject
dbc:Galactosides dbc:Nitrobenzenes
dbo:wikiPageID
4278609
dbo:wikiPageRevisionID
1084291780
dbo:wikiPageWikiLink
dbr:Beta-galactosidase dbr:Hydrolysis dbr:Spectrophotometry dbr:Inducer dbr:Substrate_(biochemistry) dbr:Galactose dbr:Enzyme dbc:Galactosides dbc:Nitrobenzenes dbr:Ortho-nitrophenol dbr:Isopropyl_β-D-1-thiogalactopyranoside dbr:Colorimeter_(chemistry) dbr:Lac_operon dbr:Lactose
owl:sameAs
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dbp:wikiPageUsesTemplate
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dbo:thumbnail
n23:ONPG_structure.png?width=300
dbp:imagefile
ONPG structure.png
dbp:iupacname
2
dbp:othernames
2
dbp:pin
-2
dbo:abstract
o-Nitrophenyl-β-D-galactopyranosid (ONPG) ist ein artifizielles Glycosid und chromogenes Substrat für β-Galactosidasen, z. B. das vom lacZ Gen von Escherichia coli codierte Enzym. L'orthonitrophényl-β-galactoside (ou 2-nitrophényl-β-D-galactopyrannoside, ONPG) est un hétéroside de type bêta-galactoside, dont l'aglycone est l' (ONP) et la partie glucidique est constituée par un galactose. L'ONPG est incolore. Son hydrolyse par une β-galactosidase libère du galactose et de l' (ONP), composé de couleur jaune en milieu alcalin. ortho-Nitrophenyl-β-galactoside (ONPG) is a colorimetric and spectrophotometric substrate for detection of β-galactosidase activity. This compound is normally colorless. However, if β-galactosidase is present, it hydrolyzes the ONPG molecule into galactose and ortho-nitrophenol. The latter compound has a yellow color that can be used to check for enzyme activity by means of a colorimetric assay (at 420 nm wavelength). β-Galactosidase is required for lactose utilization, so the intensity of the color produced can be used as a measure of the enzymatic rate. Though ONPG mimics lactose and is hydrolyzed by β-galactosidase, it is unable to act as an inducer for the lac operon. Without another lactose analog that can act as an inducer, such as isopropyl β-D-1-thiogalactopyranoside (IPTG), β-galactosidase will not be transcribed and ONPG will not be hydrolyzed.
gold:hypernym
dbr:Substrate
prov:wasDerivedFrom
wikipedia-en:Ortho-Nitrophenyl-β-galactoside?oldid=1084291780&ns=0
dbo:wikiPageLength
2331
dbo:alternativeName
2-Nitrophenylgalactoside, Ortho-Nitrophenyl-β-D-Galactopyranoside
dbo:iupacName
2-Nitrophenyl β-(D)-galactopyranoside (2R,3R,4S,5R,6S)-2-(Hydroxymethyl)-6-(2-nitrophenoxy)oxane-3,4,5-triol
foaf:isPrimaryTopicOf
wikipedia-en:Ortho-Nitrophenyl-β-galactoside
Subject Item
dbr:Klebsiella_huaxiensis
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dbr:Ortho-Nitrophenyl-β-galactoside
Subject Item
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Subject Item
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Subject Item
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Subject Item
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Subject Item
dbr:2-Nitrophenyl-b-D-galactopyranoside
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Subject Item
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dbo:wikiPageRedirects
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Subject Item
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dbr:Ortho-Nitrophenyl-β-galactoside
Subject Item
dbr:ONPG
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dbr:Ortho-Nitrophenyl-β-galactoside
Subject Item
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foaf:primaryTopic
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