I-Ultra Nuclease
Inkcazo
I-UltraNuclease yi-endonuclaese eyenziwe ngofuzo evela kwi-Serratia marcescens, ekwazi ukuthobisa i-DNA okanye i-RNA, i-double okanye i-single stranded, i-linear okanye i-circular phantsi koluhlu olubanzi lweemeko, ihlaze ngokupheleleyo i-nucleic acids kwi-5'-monophosphate oligonucleotides kunye ne-3-5. ubude besiseko.
Emva kokuguqulwa kobunjineli bezofuzo, imveliso yabiliswa, yachazwa, kwaye yahlanjululwa kwi-Escherichia coli (E. coli), enciphisa i-viscosity ye-cell supernatant kunye ne-cell lysate kuphando lwezenzululwazi, kodwa iphucula ukusulungekiswa kobuchule kunye nophando olusebenzayo lweprotheni.Isenokusetyenziswa kunyango lwemfuza, ukuhlanjululwa kwentsholongwane, ukuveliswa kwesitofu sokugonya, iprotheyini kunye ne-polysaccharide ishishini lamachiza njenge-reagent ye-residue ye-nucleic acid yokususwa.
Ulwakhiwo lweMichiza
Inkcazelo yeyunithi
Isixa se-enzyme esetyenziselwa ukutshintsha ixabiso lokufunxa △A260 nge-1.0 ngaphakathi kwe-30min kwi-37 °C, i-pH 8.0, ilingana ne-37μg ye-salmon yesidoda se-DNA ngokusikwa kwi-oligonucleotides, yachazwa njengeyunithi esebenzayo.
Ukusetyenziswa kunye nomthamo
• Susa i-nucleic acid yangaphandle kwiimveliso zokugonya, yehlisa umngcipheko wentsalela yetyhefu ye-nucleic acid kwaye uphucule ukhuseleko lwemveliso.
• Nciphisa i-viscosity yolwelo lwefidi olubangelwa yi-nucleic acid, nciphisa ixesha lokulungiswa kunye nokwandisa isivuno seprotheyini.
• Susa i-asidi ye-nucleic esongiweyo (intsholongwane, i-inclusion body, njl.njl.), enceda ukukhululwa kunye nokucocwa kwesuntswana.
• Unyango lwe-nuclease lunokuphucula isisombululo kunye nokubuyiswa kwesampulu yekholomu ye-chromatography, i-electrophoresis kunye nohlalutyo lwe-blotting.
• Kwi-gene yonyango, i-nucleic acid iyasuswa ukufumana iintsholongwane ezihlambulukileyo ezihambelana ne-adeno.
Inkcazo
Izinto zovavanyo | Iinkcukacha |
Inkcazo | Icacile kwaye ayinaMbala |
Umsebenzi | ≥ 250 U/ul |
Umsebenzi othile | ≥1.1*106U/mg |
Ubunyulu (SDS-PAGE) | ≥ 99.0% |
IiProteases | Akukho nanye ifunyenweyo |
Umthwalo wezinto eziphilayo | <10 cfu/100,000U |
Endotoxines(LAL-test) | < 0.25EU/1,000U |
Ukuthutha kunye nokugcinwa
Ezothutho:Ithunyelwe ngenqanawa ngaphantsi kwe-0 °C
Ugcino:Gcina kwi -25~-15°C
Ubomi obucetyiswayo bokuvavanya kwakhona:Iminyaka emi-2 (kunqande ukunyibilika komkhenkce)