Ukwahlula okugwenxa kunye nokwahlula okulungileyo kokuhlanjululwa kweeprotheyini

Ukwahlula kunye nokuhlanjululwa kweeprotheni zisetyenziswa ngokubanzi kuphando lwe-biochemistry kunye nokusetyenziswa kwaye sisakhono esibalulekileyo sokusebenza. I-SCG yeProtein Purification System Company-Saipu Instrument iye yaqulunqa ukuhlukana okungcolileyo kunye nomxholo wokwahlula okulungileyo.iprotheniukuhlanjululwa komntu wonke. Iseli eqhelekileyo ye-eukaryotic inokuqulatha amawaka eeprotheyini ezahlukeneyo, ezinye zizityebi kakhulu kwaye ezinye zineekopi ezimbalwa kuphela. Ukuze ufunde iprotheni ethile, kuyimfuneko ukucoca kuqala iprotheni evela kwezinye iiprotheni kunye neemolekyuli ezingenazo iiprotheni.

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Ukwahlula okurhabaxa

Xa i-protein extract (ngamanye amaxesha ixutywe kunye ne-nucleic acids, i-polysaccharides, njl.)iprothenikobunye ukungcola. Ngokubanzi, eli nyathelo lokwahlula lisebenzisa iindlela ezinje ngetyuwa ngaphandle, ukuqokelelwa kwamanqaku e-isoelectric kunye nokuqhekeka kwe-solvent ye-organic. Ezi ndlela zibonakaliswe ngokulula kunye nomthamo omkhulu wokucubungula, onokususa ukungcola okuninzi kwaye ugxininise isisombululo seprotheni. Ezinye izicatshulwa zeprotheyini zinkulu ngomthamo kwaye azifanelekanga ukugxininiswa ngokuqokelela okanye ukutyumba ngaphandle. Unokukhetha i-ultrafiltration, i-gel filtration, i-vacuum epholileyo yokumisa okanye ezinye iindlela zokuxilisa.

Ukwahlula okulungileyo

Emva kokuqhekeka okukrakra kwesampulu, umthamo uncinci, kwaye ubuninzi bokungcola bususiwe. Ukucocwa ngakumbi, iindlela zechromatography ngokubanzi zibandakanya ukuhluzwa kwejeli, ukutshintshiselana nge-ion chromatography, i-adsorption chromatography, kunye ne-affinity chromatography. Ukuba kuyimfuneko, unokukhetha kwakhona i-electrophoresis, kubandakanywa i-electrophoresis yendawo, i-isoelectric point set, njl. njengenkqubo yokugqibela yokucoca. Indlela esetyenziswayo yokwahlula inqanaba lolwahlulo idla ngokuba yincinci kucwangciso, kodwa inesisombululo esiphezulu.

I-Crystallization yinkqubo yokugqibela yokuhlukana kweeprotheni kunye nokuhlanjululwa. Nangona inkqubo ye-crystallization ayiqinisekisi ukuba iprotheni kufuneka ibe yinto efanayo, kuphela xa iprotheni ethile inenzuzo kwisisombululo sokwenza i-crystal. Inkqubo ye-crystallization ngokwayo ihamba kunye neqondo elithile lokuhlanjululwa, kwaye i-recrystallization inokususa inani elincinci leprotheni egqwethiweyo. Ekubeni denaturediprotheniayizange ifunyanwe ngexesha lenkqubo ye-crystallization, i-protein crystallization ayilona nje uphawu lokucoceka, kodwa kunye nesikhokelo esinamandla sokugqiba ukuba imveliso ikwimeko yendalo.


Ixesha lokuposa: Nov-19-2020