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4-Nitrophenyl beta-D-galactopyranoside CAS:200422-18-0

Ko te 4-Nitrophenyl beta-D-galactopyranoside (ONPG) he puhui matū e whakamahia nuitia ana i roto i nga whakamatautau enzymatic kia kitea te noho me te mahi o te enzyme β-galactosidase.He tïpako mo te β-galactosidase, e mawehe ana i te ngota ngota kia puta he hua kowhai, ko te o-nitrophenol.Ka taea te ine i te huringa tae ma te spectrophotometrically, ka taea te whakatau ine ine o te mahi a te enzyme.Ka whakamahia nuitia tenei puhui i roto i te koiora rapoi me te rangahau matū koiora ki te ine i te mahi β-galactosidase me te ako ki te whakaputa ira me te ture.

 


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Taupānga me te Pānga

Pānga: Ko te ONPG he tïpako i whakamahia motuhake hei kite i te noho me te ngohe o te enzyme β-galactosidase.I te wa e noho ana te β-galactosidase enzyme me te kaha, ka wehea e ia te ONPG kia rua nga hua: o-nitrophenol me te pärönaki galactose.Ko te whakaputanga o te o-nitrophenol ka puta he huringa tae kowhai, ka taea te ine ma te whakamahi i te spectrophotometer.

Taupānga: He maha nga tono a ONPG i roto i te koiora ngota me te rangahau matū koiora:

Te whakatau i te mahi β-galactosidase: Kei te whakamahia te ONPG ki te ine me te ine i te mahi o te β-galactosidase enzyme.Ko te tere o te hanga o-nitrophenol, he rite tonu ki te mahi enzyme, ka taea te ine i te spectrophotometrically.

Te whakaputanga ira me te ture: Ka whakamahia te ONPG ki nga whakamatautau e pa ana ki te whakaaturanga ira me nga rangahau ture.He maha nga wa ka whakamahia i roto i nga whakamatautau pūmua hanumi, penei i te punaha whakakoitanga lacZ e whakamahia nuitia ana, ki te ako i te whakapuakitanga o nga ira i raro i te mana o nga kaiwhakatairanga motuhake.Ko te mahi beta-galactosidase i ine ma te whakamahi i te ONPG e whakaatu ana i nga tirohanga ki te taumata o te whakaaturanga ira.

Te tirotiro mo te mahi β-galactosidase: Ka taea te whakamahi ONPG hei tikanga tirotiro tae i roto i te hangarau DNA recombinant ki te tautuhi i te aroaro me te mahi o te ira LacZ, e whakawaehere ana i te β-galactosidase.Ka awhina tenei tikanga tirotiro ki te tautuhi i nga karaehe kei roto te ira o te hiahia.

Ko nga rangahau orohiko enzyme: He whai hua ano te ONPG ki te ako i nga kinetics o te β-galactosidase enzyme.Ma te ine i te tere o te tauhohenga o te enzyme-substrate i nga kuhanga rereke o te tïpako, ka taea te whakatau i nga tawhā nekeneke penei i nga taurite Michaelis-Menten (Km) me te reiti tauhohenga teitei (Vmax).

Tapeke Hua:

6892-68-8-3

Nga korero taapiri:

Te tito C12H17NO9
Te whakamatautau 99%
Te ahua paura
CAS No. 200422-18-0
Te takai Iti me te rahi
Te Ora Papa 2 tau
Rokiroki Rokiroki ki te waahi makariri me te maroke
Tiwhikete ISO.

 


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