Unganquma kanjani ukuhlushwa okuhle kakhulu?
Kwi-inducer IPTG (isopropyl-beta-d-thiogalactoside), lapho ukuhlushwa kuphakeme, kungcono. Ukuhlushwa okuhle kuncike ezimweni ezithile zokuhlola kanye nomphumela wokungeniswa ofiselekayo.
Ngokuvamile, ukuhlushwa kwe-IPTG kusetshenziswa ebangeni eliphakathi kuka-0.1-1 mM. Ukuhlushwa okuphansi kunganciphisa imiphumela emibi ekukhuleni kwamaseli futhi kunganciphisa ubuthi obuvela kuma-cytotoxicity ngenxa yokwanda kwamaprotheni aqondiwe. Ukuhlushwa okuphezulu kungabangela umthwalo omkhulu we-metabolic wamaseli, okuthinta ukukhula kwamaseli kanye nokusebenza kahle kokubonakaliswa.
Indlela yokuthola ukuhlushwa okungcono kakhulu kungaba ukuhlola izinga lokuvezwa kweprotheyini eqondiwe ngokwenza izivivinyo zokungeniswa kwe-IPTG ngamanani ahlukene. Izivivinyo zokulima ezincane zingenziwa kusetshenziswa ububanzi bamanani e-IPTG (isb. 0.1 mM, 0.5 mM, 1 mM, njll.) kanye nomphumela wokuvezwa ngamanani ahlukene ungahlolwa ngokuthola izinga lokuvezwa kweprotheyini eqondiwe (isb. i-Western blot noma ukutholwa kwe-fluorescence). Ngokusho kwemiphumela yokuhlola, ukuhlushwa okunomphumela omuhle kakhulu wokuvezwa kukhethwe njengokuhlushwa okuhle kakhulu.
Ngaphezu kwalokho, ungabhekisela nasezincwadini ezifanele noma kokuhlangenwe nakho kwamanye amalabhorethri ukuze uqonde ububanzi bokuhlushwa kwe-IPTG obusetshenziswa njalo ngaphansi kwezimo ezifanayo zokuhlola, bese wenza ngcono futhi ulungise ngokwezidingo zokuhlola.
Kubalulekile ukuqaphela ukuthi ukuhlushwa okuhle kakhulu kungahluka kuye ngezinhlelo ezahlukene zokuveza, amaprotheni aqondiwe, kanye nezimo zokuhlola, ngakho-ke kungcono ukwenza ngcono ngokwesisekelo secala ngalinye.
Isikhathi sokuthunyelwe: Septhemba-28-2023