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Oloa

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

4-Nitrophenyl beta-D-galactopyranoside (ONPG) o se vailaʻau vailaʻau e masani ona faʻaaogaina i suʻesuʻega enzymatic e iloa ai le i ai ma le gaioiga o le enzyme β-galactosidase.O se mea faʻapipiʻi mo le β-galactosidase, lea e faʻamavae ai le mole e faʻasaʻo ai se oloa samasama, o-nitrophenol.Ole suiga ole lanu e mafai ona fua ile spectrophotometrically, fa'atagaina mo le fa'atatauina o le gaioiga ole enzyme.O lenei tuufaatasiga o loʻo faʻaaogaina lautele i suʻesuʻega mole mole ma suʻesuʻega biochemistry e faʻatusatusa ai le gaioiga o le β-galactosidase ma suʻesuʻeina le faʻaaliga ma tulafono faatonutonu.

 


Fa'amatalaga Oloa

Faailoga o oloa

Fa'aoga ma A'afiaga

Aafiaga: ONPG o se mea faʻapitoa e faʻaaogaina e iloa ai le i ai ma le gaioiga o le enzyme β-galactosidase.A iai le enzyme β-galactosidase ma fa'agaoioia, e vaeluaina le ONPG i ni oloa se lua: o-nitrophenol ma se galactose derivative.O le fa'asa'olotoina o le o-nitrophenol e maua ai se suiga lanu samasama, lea e mafai ona fuaina e fa'aaoga ai se spectrophotometer.

Talosaga: ONPG e tele fa'aoga i le biology mole mole ma su'esu'ega biochemistry:

Fuafuaga ole gaioioiga β-galactosidase: ONPG e masani ona faʻaogaina e fua ma faʻatusatusa le gaioiga ole enzyme β-galactosidase.Ole fua ole o-nitrophenol fa'avae, lea e fa'atatau tonu ile gaioiga ole enzyme, e mafai ona fua ile spectrophotometrically.

Fa'aaliga ma tulafono faatonutonu: ONPG e masani ona fa'aogaina i su'esu'ega e feso'ota'i ma su'esu'ega fa'ata'oto ma tulafono faatonutonu.E masani ona fa'aoga i su'esu'ega fusion protein, e pei o le lacZ fusion system e masani ona fa'aoga, e su'esu'e ai le fa'aaliga o kenera i lalo o le ta'ita'iga a tagata fa'alauiloa fa'apitoa.Ole gaioiga ole beta-galactosidase e fuaina ile fa'aogaina ole ONPG e maua ai fa'amatalaga ile tulaga ole fa'aaliga o kenera.

Su'esu'ega mo le gaioiga β-galactosidase: E mafai ona fa'aogaina le ONPG e fai ma auala e su'esu'e ai lanu i le recombinant DNA technology e fa'ailoa ai le i ai ma le fa'atinoga o le gene LacZ, lea e fa'ailoga β-galactosidase.O lenei metotia su'esu'e e fesoasoani i le iloa o clones o lo'o i ai le kenera e fiafia i ai.

Enzyme kinetics suʻesuʻega: ONPG e aoga foi i le suʻesuʻeina o le kinetics o le enzyme β-galactosidase.E ala i le fuaina o le fua o le enzyme-substrate fa'afoliga i mea eseese substrate concentrations, e mafai ona fuafua kinetic parameters e pei ole Michaelis-Menten constants (Km) ma le maualuga fua faatatau tali (Vmax).

Fa'aputuga o oloa:

6892-68-8-3

Fa'amatalaga Faaopoopo:

Tulaga C12H17NO9
Su'ega 99%
Fa'aaliga Lanu pa'epa'epauta
CAS Nu. 200422-18-0
afifiina Laiti ma tele
Ola Fa'asa 2 tausaga
Teuina Teu i se nofoaga malulu ma mago
Fa'ailoga ISO.

 


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