I-Polymerase chain reaction (PCR) iguqule i-molecular biology ngokuvumela ukukhuliswa okusheshayo kwezakhi zofuzo ezithile ezintweni ezincane kakhulu zokuqala. Kusukela yasungulwa ngeminyaka yawo-1980, i-PCR isibe ithuluzi elibalulekile ku-genomics, ukuxilonga, isayensi yobugebengu, kanye nemikhakha eminingi yocwaningo. Ikhono lale ndlela lokukhiqiza izigidi zamakhophi engxenye ethile ye-DNA phakathi namahora livule iminyango yezinhlelo zokusebenza ezazingacabangeki ngaphambili. Kusukela ekutholeni izinto ezithathelwanayo kuya ekuhlonzeni ukuguquka kofuzo, i-PCR iyisisekelo senqubekelaphambili ebaluleke kakhulu kusayensi yesimanje. Nokho, ukuthembeka nokuphindaphindeka kokuhlolwa kwe-PCR kuncike kakhulu ekhwalithini yama-reagents namakhithi asetshenzisiwe. Lapha i-Ele Bam Bioscience ingena esithombeni, inikeza iqoqo eliphelele lezixazululo ze-PCR ezenzelwe ukuzwela okuphezulu, ukunemba okungantengantengi, nokusebenza okuhle kakhulu. Kulesi sihloko, sizohlola uhla oluphelele lwamakhithi e-PCR e-Ele Bam Bioscience, okuhlanganisa ama-master mixes, ama-polymerases, nama-buffers, futhi sihlole ukuthi anika kanjani abacwaningi amandla okufeza imiphumela engaguquki, enyatheliswayo kuzo zonke izinhlelo zokusebenza ezahlukene. Noma ngabe wenza i-genotyping evamile, i-quantitative real-time PCR (qPCR), noma ukuhlola okuyinkimbinkimbi kwe-multiplex PCR, ukuqonda izinzuzo zala ma-reagents athuthukile kungaba nomthelela omkhulu emiphumeleni yakho yokuhlola.

I-PCR iyindlela eyisisekelo evumela abacwaningi ukuthi bandise ikhophi eyodwa noma amakhophi ambalwa okulandelana kwe-DNA ngezilinganiso eziningi, bakhiqize izinkulungwane kuya ezigidini zamakhophi. Le nqubo incike ekushintsheni ukushisa, okuhlanganisa imijikelezo ephindaphindiwe yokuhlukaniswa kwemicu, ukunamathiswa, nokwandiswa, ngamunye kusekelwa yi-thermostable DNA polymerase efana ne-Taq polymerase. Ukucaciswa kwe-PCR kunqunywa ukwakhiwa kwama-oligonucleotide primers azungeze indawo ekuhlosiwe, okuqinisekisa ukuthi ukulandelana okuhlosiwe kuphela okwandisiwe. Ngokuhamba kweminyaka, i-PCR iguqukele yaba izinhlobo eziningi, okuhlanganisa i-reverse transcription PCR (RT PCR) yokuhlaziya i-RNA, i-real-time quantitative PCR (qPCR) yokulinganisa okunembile, kanye ne-multiplex PCR yokwandisa izinto eziningi ngesikhathi esisodwa. Uhlobo ngalunye lubeka izidingo eziyingqayizivele ku-polymerase, isistimu ye-buffer, kanye namakhemikhali okusabela wonkana. Isibonelo, i-RT PCR idinga umsebenzi oqinile we-reverse transcriptase ohambisana nokwandiswa kwe-DNA okuphumelelayo, kuyilapho i-multiplex PCR idinga i-polymerase enomsebenzi ophakeme nokubekezelela izintambo eziningi zama-primer. I-Ele Bam Bioscience izinikele emizamweni emikhulu yocwaningo nokuthuthukisa ukuze ibhekane nalezi zidingo eziqondile, idala izinhlanganisela ezenziwe kahle ezinikeza ukuzwela nokunemba okuphezulu. Ukuqonda okujulile kwenkampani ngamakhemikhali e-PCR kuqinisekisa ukuthi imikhiqizo yayo inciphisa ukwandiswa okungaqondile, inciphisa ukwakheka kwama-primer-dimer, futhi igcina ukusebenza okungaguquki ngisho nangaphansi kwezimo eziyinselele. Ngokukhetha izinto zokusebenza ze-PCR ezifanele, abacwaningi bangonga isikhathi esibalulekile, banciphise ukuxazulula izinkinga, futhi bathole ukuzethemba emiphumeleni yabo.

Ngaphezu kocwaningo oluyisisekelo, i-PCR isiphenduke isisekelo esibalulekile ekuhloleni izifo emtholampilo, lapho ukutholwa okusheshayo nokunembile kwezinto ezibangela izifo, ukuphazamiseka kofuzo, kanye nezimpawu zomdlavuza kubaluleke kakhulu. Ngesikhathi sobhubhane lwe-COVID-19, izivivinyo ezisekelwe ku-PCR zaba yindinganiso yegolide yokuthola i-SARS-CoV-2, okugqamisa indima ebalulekile yale ndlela empilweni yomphakathi. Ngokufanayo, ku-biotechnology yezolimo, i-PCR isetshenziselwa ukuhlola izinto eziphilayo eziguliwe (GMO), ukuhlonza izinto ezibangela izifo ezitshalweni, kanye nokugada izifo emfuyweni. Ukusebenza okuhlukahlukene kwe-PCR kunweba ku-microbiology yemvelo, lapho inika amandla ukutholwa kwemiphakathi yama-microbial emhlabathini, emanzini, nasemoyeni. Kuleso naleso simo, ikhwalithi yama-reagents e-PCR ithinta ngqo ukuzwela, ukucacisa, kanye nesikhathi sokuphendula kokuhlolwa. I-Ele Bam Bioscience iyayibona lezi zidingo futhi ihlanganise umkhiqizo wayo ukuze ilethe ukukhulisa okungaguquki nokwethembekile ezinhlobonhlobo zezinhlobo zethempulethi, okuhlanganisa ukulandelana okunothe kwe-GC, i-DNA eyonakele, kanye namasampula ayinkimbinkimbi ofuzo. Ama-master mixes nama-polymerases ayo ahlolwa ngokuqinile ukuze kuqinisekiswe ukungaguquki kwebatch-to-batch, okunikeza abacwaningi ukwethembeka abakudingayo kokubili izinhlelo ezijwayelekile nezibalulekile. Ngokuzibophezela ekusunguleni izinto ezintsha nasekulawuleni ikhwalithi, i-Ele Bam Bioscience izibeke njengozakwethu othembekile emphakathini we-molecular biology.

I-Ele Bam Bioscience inikeza inhlanganisela ehlukahlukene yama-PCR master mixes aklanyelwe ukwenza lula ukuhlela ukusetha kanye nokunciphisa amaphutha okupipha. Lezi zindlela ezilungele ukusetshenziswa zihlanganisa i-DNA polymerase, ama-dNTPs, i-buffer elungiselelwe, kanye nombala wokulandelela emshinini owodwa, okuvumela abacwaningi ukuthi bangeze kuphela i-template, ama-primers, namanzi. Le ndlela ayinciphisi nje kuphela ingozi yokungcoliswa kodwa futhi ithuthukisa ukuphindaphindeka emisebenzini eminingi. Ama-master mixes atholakala ngezindlela ezahlukahlukene ezenzelwe izinhlelo ezithile, okuhlanganisa i-PCR evamile, ukukhulisa okunemba okuphezulu, i-RT PCR, ne-qPCR. Isibonelo, i-Ele Bam 2× PCR Master Mix inikeza ukukhulisa okuqinile kokuhlola uhlobo nokuhlanganisa, kuyilapho i-Ele Bam High-Fidelity Master Mix ihlanganisa i-proofreading polymerase ukuze iqinisekise ukuphindaphindeka kwe-DNA okunembile ngamazinga aphansi amaphutha. I-master mix ngayinye ihlolwa ngokuqinile ukuze kuqinisekiswe ukusebenza, ukucacisa, kanye nokungabi bikho kokungcoliswa yi-nuclease. Abacwaningi bangakhetha kuma-master mixes ahlanganisa imibala engasebenzi ukuze balayishe i-gel ngqo noma lawo angenambala ezinhlelweni ezidinga izilinganiso zokumunca i-UV. I-Ele Bam Bioscience iphinde ihlinzeke ngama-master mixes anokubekezelela okuthuthukisiwe ekuvinjelweni okuvamile okutholakala kumasampula angahlanzekile, njengama-humic acids, igazi, nama-polysaccharides ezitshalo. Lokhu kumelana nokuvinjelwa kuyinzuzo ebalulekile ekuhloleni okwenziwa emkhakheni, ukusampula kwemvelo, nokuhlola umtholampilo lapho ubumsulwa besampula bungaqinisekiswa njalo. Ngokunikeza uhla olubanzi lwama-master mixes, i-Ele Bam Bioscience ivumela amalabhorethri ukuthi akhethe ukwakheka okufanele emsebenzini wawo othile, konga isikhathi futhi kuthuthukise ukusebenza kahle jikelele.

Inhliziyo yayo yonke i-PCR reaction yi-DNA polymerase, futhi i-Ele Bam Bioscience ithuthukise umugqa wama-enzyme asebenza kahle kakhulu ahlangabezana nezidingo ze-modern molecular biology. Umkhiqizo wabo oyinhloko, i-EleBam Taq DNA Polymerase, unikeza ukumelana nokushisa okuhle kakhulu, amazinga okunweba asheshayo, kanye nesivuno esiqinile. Le enzyme ifaneleka kahle kakhulu ekusetshenzisweni kwe-PCR okujwayelekile, okuhlanganisa i-colony PCR, ukuhlola izakhi zofuzo, kanye nokukhulisa izingcezu ze-cloning. Ezinhlelweni ezidinga ukwethembeka okuphezulu, i-Ele Bam Bioscience inikeza i-EleBam Pfu DNA Polymerase, enomsebenzi wokuhlola ukufunda i-3′→5′ exonuclease, okunciphisa izinga lamaphutha uma kuqhathaniswa ne-Taq polymerase evamile. Le enzyme ibaluleke kakhulu ekulandeleni ukulandelana kwezakhi, ekuguquleni izindawo ezithile, nakunoma yiluphi ucwaningo lapho ukunemba kokulandelana kubaluleke kakhulu. Ukwengeza, i-EleBam Hot Start DNA Polymerase yenkampani ihlanganisa ukuguqulwa okusekelwe kumakhemikhali noma kuma-antibody okuvimbela umsebenzi we-polymerase emazingeni okushisa aphansi, ngaleyo ndlela kunciphisa ukukhuliswa okungaqondile kanye nokwakheka kwe-primer-dimer. Lesi sici siwusizo ikakhulukazi ku-multiplex PCR kanye nokutholwa kwe-target enenombolo ephansi. I-Ele Bam Bioscience iphinde ihlinzeke ngama-polymerase akhethekile e-long-range PCR, angakhulisa izingcezu ezingaphezu kuka-10 kb, kanye nama-template anothe kakhulu e-GC okunzima ukuwakhulisa. I-polymerase ngayinye inikezwa nesistimu ye-buffer ehambisanayo ehlolisiswe ngokucophelela ukuze kukhuliswe ukusebenza kwe-enzyme. Ama-buffers aqukethe amazinga afanele e-magnesium ions, usawoti, kanye nezithasiselo ukuze kuthuthukiswe ukucacisa kanye nesivuno, okunikeza abacwaningi ithuba lokulungisa kahle izimpendulo zabo. Ngokusungula okuqhubekayo, i-Ele Bam Bioscience iqinisekisa ukuthi ama-polymerase ayo anikeza imiphumela engaguquki, esezingeni eliphezulu kuzo zonke izimo ezahlukahlukene zokuhlola.

I-buffer yokusabela idlala indima ebalulekile kodwa evame ukunganakwa empumelelweni ye-PCR. I-Ele Bam Bioscience yakha uchungechunge lwama-buffer ahambisana nama-polymerase ayo kanye nama-master mixes, enikeza amandla e-ionic afanele, ukulinganisela kwe-pH, kanye nama-stabilizing agents. Lawa ma-buffer enziwe ukuze athuthukise umsebenzi we-enzyme kuyilapho enciphisa amathuba okwakheka kwesakhiwo sesibili ku-template DNA. Inkampani inikeza ama-buffer ajwayelekile angu-10× PCR ezinhlelweni ezijwayelekile, kanye nama-buffer akhethekile aqukethe izithasiselo ezifana ne-betaine, i-DMSO, noma i-glycerol ukuze kube lula ukukhulisa ama-template ane-GC-rich noma anezakhiwo eziphakeme. I-Ele Bam Bioscience iphinde inikeze amasethi e-buffer e-RT PCR ahambisana nayo yomibili imisebenzi yesinyathelo esisodwa neyesibili, iqinisekisa ukuhlanganiswa okungenazinkinga nokusabela kwe-reverse transcription. Lawa ma-buffer ahlolwa ngokuqinile ukuze kuqinisekiswe ukuthi awavimbeli izinhlelo zokusebenza ezingezansi ezifana nokugaya ukudla okunemikhawulo (restriction digestion), ukuhlanganisa (ligation), noma ukulandelana kwezakhi (sequencing). Ngaphezu kwalokho, inkampani ihlinzeka ngezixazululo ze-magnesium chloride ngokwehlukana, okuvumela abacwaningi ukuthi balinganise ukugxila kwe-magnesium ukuze bathole umsebenzi we-polymerase ofanele. Leli zinga lokulawula libalulekile ekulungiseni ukuqondisa kokusabela, ikakhulukazi ezinhlelweni ze-multiplex PCR lapho izintambo eziningi ze-primer kufanele zisebenze ngaphansi kwezimo ezifanayo. Ngokunikeza uhlelo oluphelele lwe-buffer, i-Ele Bam Bioscience inika amandla abacwaningi ukuthi bathole imiphumela ethembekile nephindaphindekayo kuyilapho banciphisa isikhathi esichithwa ekulungiseni. Ukusebenzisana phakathi kwama-polymerase ayo nama-buffer kuwuphawu lomkhiqizo, okubonisa indlela ephelele yokuklama izinto ze-PCR ebeka phambili ukusebenza nokulula komsebenzisi.

Ama-PCR kits e-Ele Bam Bioscience agqama emakethe ngenxa yezinzuzo eziningi eziphawulekayo ezibhekana ngqo nezinkinga abacwaningi abahlangabezana nazo nsuku zonke. Okokuqala nokubalulekile, ama-kits ahlinzeka ngokukhetheka okuthuthukisiwe, okuyinto ebalulekile ekugwemeni imiphumela engamanga nemiphumela engacacile. Lokhu kufinyelelwa ngenhlanganisela yobuchwepheshe be-hot-start polymerase, ukwakheka kwe-buffer okuthuthukisiwe, kanye nezithasiselo ezikhethwe ngokucophelela ezivimbela ukuhlanganisa okungaqondile. Umphumela uyizinhlobo zokukhulisa ezihlanzekile, ama-bands acijile kuma-gel, kanye nokulinganisa okunembe kakhulu ekuhlolweni kwe-qPCR. Okwesibili, ama-kits abonisa ukumelana okuphawulekayo nezithiyo ezivamile ze-PCR, okuhlanganisa nalezo ezitholakala egazini, emhlabathini, kumasampula okudla, kanye nezibonelo zobufakazi. Lokhu kukwazi ukumelana nezithiyo kuvumela abacwaningi ukuthi basebenze ngqo nama-lysate angahluziwe noma i-DNA ehlanzwe kancane ngaphandle kokulahlekelwa ukusebenza kahle kokusabela. Emalabhorethri acubungula inani elikhulu lamasampula, lokhu kuhumushela ekongeni isikhathi nezindleko ezinkulu ngokunciphisa isidingo sezinyathelo eziningi zokuhlanzwa kwe-DNA. Okwesithathu, i-Ele Bam Bioscience yakhe ama-polymerase ayo ukuze kube nezikhathi zokwelula ezisheshayo, okwenza ukuthi ukusebenza kwe-PCR kuphelele ngezikhathi ezingama-30–45 kuphela ngaphandle kokulahlekelwa isivuno noma ukukhetheka. Lokhu kukwazi ukugijima ngokushesha kwenziwa kube nokwenzeka ngama-enzyme ane-processivity ephezulu kanye nezinhlelo ze-buffer ezithuthukisiwe ezigcina ukusebenza okungaguquki emazingeni okukhuphuka aphezulu. Okwesine, ama-kits abonisa ukuphindaphindeka okuhle kakhulu kuma-thermal cycler ahlukene, emalabhorethri, nakubasebenzi. Iqembu ngalinye liyahlolwa ngokucophelela ukulawulwa kwekhwalithi kusetshenziswa izithenjwa eziyizingqinamba eziyizingqinamba ukuze kuqinisekiswe ukuthi iyunithi ngayinye isebenza ngokucacile. Ekugcineni, i-Ele Bam Bioscience inikeza ukwesekwa kobuchwepheshe okukhethekile, inethimba lochwepheshe be-molecular biology abanolwazi abatholakalayo ukusiza ekuxazululeni izinkinga, ekwakhiweni kokuhlola, nasekuthuthukisweni kwemithetho elandelwayo. Le nhlanganisela yama-reagents asebenza kahle kakhulu kanye nokuholwa okunolwazi kunikeza abacwaningi ukuzethemba abakudingayo ukuze babhekane nezivivinyo eziyinselele futhi bathole imiphumela enomqondo.

Enye inzuzo enkulu ukubekezelela amazinga okushisa abanzi ama-polymerase e-Ele Bam Bioscience, agcina ukusebenza kuwo wonke amafasitela amaningi okushisa okuhlanganisa. Lesi sici senza kube lula ukwakhiwa kwama-primer futhi sinciphisa isidingo sokuthuthukiswa okuningi kwe-gradient, konga isikhathi esibalulekile ngesikhathi sokuthuthukiswa kokuhlola. Ukwengeza, amakhithi ahambisana nezinhlobonhlobo zamakhemikhali okuthola, okuhlanganisa i-SYBR Green, ama-probe e-TaqMan, nama-molecular beacons, okwenza afanelekele kokubili i-intercalating dye-based kanye ne-probe-based qPCR. Ama-master mixes enziwe ngamadayi angasebenzi angaphazamisi ukutholwa kwe-fluorescence, okuqinisekisa ukufundwa okunembile kwesignali. I-Ele Bam Bioscience iphinde ibeke phambili ukuzinza, ngemikhiqizo egcina ukusebenza okugcwele ngemva kwemijikelezo eminingi yokukhipha i-freeze-thaw kanye nokugcinwa isikhathi eside ku-–20°C. Emalabhorethri adinga ukucutshungulwa okuphezulu, inkampani inikeza izinketho zokupakisha eziningi kanye nezindlela ezenziwe ngokwezifiso ezihambisana nezidingo ezithile zomthamo. Ukuzibophezela kwekhwalithi kudlulela enqubweni yokukhiqiza, ehambisana namazinga e-ISO 9001 futhi ihlanganisa ukuhlolwa okuqinile kokungcoliswa kwe-endonuclease, exonuclease, ne-RNase. Ngokuletha imikhiqizo ehlanganisa ubuchwepheshe nokwethembeka, i-Ele Bam Bioscience izuze ukwethenjwa kwabacwaningi emkhakheni wezemfundo, ezimbonini, nasezindaweni zomtholampilo emhlabeni wonke.

Uma kuhlolwa ama-reagents e-PCR, abacwaningi bavame ukuqhathanisa abahlinzeki abaningi ukuze bathole ibhalansi enhle kakhulu yokusebenza, izindleko, nokusekelwa. I-Ele Bam Bioscience ihlala incintisana kahle nezinkampani ezaziwayo ezifana ne-Thermo Fisher Scientific, i-Takara Bio, ne-New England Biolabs. Ekuqhathaniseni okuqondile, ama-master mixes nama-polymerases e-Ele Bam Bioscience akhombisa ukuzwela okulinganayo noma okungcono, ikakhulukazi lapho kukhuliswa izinhloso ezinamanani aphansi noma amathempulethi ayinselele. Isibonelo, ekuhlolweni okuqhathaniswa kusetshenziswa ukuhlanjululwa okulandelanayo kwe-genomic DNA template, i-Ele Bam Hot Start Master Mix yathola izinhloso emazingeni lapho imikhiqizo yezimbangi yehluleka ukukhiqiza ama-amplicons abonakalayo. Ngokufanayo, ekuhlolweni kwe-RT PCR kusetshenziswa i-RNA evela ezitshalweni ezinama-phenolic amaningi, amakhithi e-Ele Bam RT PCR abonise ukukhuliswa okuqinile kuyilapho amanye amakhithi ezimbangi ebonisa ukuvinjelwa noma ukusebenza kahle okuncishisiwe. Isikhathi sokunwetshwa esisheshayo sama-polymerases e-Ele Bam sihunyushela esikhathini esifushane sokusebenza, okwenza amalabhorethri akwazi ukucubungula amasampula amaningi ngosuku ngaphandle kokuphazamisa ikhwalithi yedatha. Ezimweni ze-multiplex PCR, uhlelo lwe-buffer olulungiselelwe lunciphisa ukwakheka kwe-primer-dimer futhi luqinisekise ukukhuliswa okulinganiselayo kwazo zonke izinhloso, umsebenzi ovame ukudinga ukulungiswa okuningi kwezinye izinhlobo zemikhiqizo. Ngaphezu kwalokho, i-Ele Bam Bioscience inikeza amanani ancintisanayo ngaphandle kwezindleko ezifihliwe zokuthumela noma ubuncane benani lokuyala, okuyenza ibe yinketho ekhangayo emalabhorethri abheke isabelomali. Inkampani futhi inikeza amasampula amahhala uma kuceliwe, ivumela abacwaningi ukuthi bahlole imikhiqizo ngaphansi kwezimo zabo ezithile ngaphambi kokuthenga okukhulu. Ukusekelwa kwezobuchwepheshe okuvela ku-Ele Bam Bioscience kuyasabela futhi kunolwazi, ngokuvamile kunikeza izinqubo ezenziwe ngokwezifiso zezinhlobo ezingajwayelekile zamasampula noma izinhlelo zokusebenza ezikhethekile. Nakuba ezinye izimbangi zingaba nemikhiqizo eminingi, indlela egxilile ye-Ele Bam Bioscience iqinisekisa ukuthi i-reagent ngayinye ithuthukiswa ngokucophelela futhi iqinisekiswa ngokuphelele. Emalabhorethri afuna ukusebenza okuphezulu, ukwethembeka, kanye nenani elihle, i-Ele Bam Bioscience imelela ukukhetha okuphoqelelayo okuqhudelana nabaholi bemboni.

Esinye isici lapho i-Ele Bam Bioscience igqama khona ukungaguquguquki kokusebenza phakathi kwezikhathi ezahlukene. Abacwaningi abake babhekana nokungafani kwemikhiqizo kwabanye abahlinzeki bayayazisa izinqubo eziqinile zokuqinisekisa ikhwalithi ezisetshenziswa yi-Ele Bam Bioscience. I-loti ngalinye lihlolwa ukuthi lisebenza kahle yini, ukukhetha okuthile, kanye nokungabi bikho kokungcola, futhi imiphumela iyabhalwa futhi iyatholakala uma iceliwe. Lokhu kusobala kwakha ukwethembana futhi kuvumela amalabhorethri ukuthi ahlele izivivinyo ngokuzethemba. Ukwengeza, i-Ele Bam Bioscience inikezela ngezindlela zokuhlanganisa ezikhethekile kanye nezinsizakalo zobunjiniyela be-polymerase kumakhasimende anezidingo ezikhethekile, njengokuhlanganiswa nezinhlelo zokuphatha uketshezi ezizenzakalelayo noma ukuhambisana nezinkundla ezintsha zokuthola. Leli zinga lokwenza ngokwezifiso alitholakali njalo kubahlinzeki abakhulu, okunikeza i-Ele Bam Bioscience inzuzo ehlukile ekusebenzeleni izicelo eziyinkimbinkimbi noma ezinzima. Ngamafuphi, ukuhlaziya okuqhathanisayo kuveza ukuthi i-Ele Bam Bioscience ayigcini nje ngokufana kodwa ivame ukwedlula ukusebenza kwamakhithi ezimbangi ezilinganisweni ezibalulekile, ngenkathi inikezela ngenani eliphakeme, ukusekelwa, kanye nokuvumelana nezimo.

Ukuhlaziywa kofuzo (genotyping) kuncike ku-PCR ukuze kukhuliswe izimpawu ezithile zofuzo, njengezinhlobo ezihlukile ze-nucleotide (SNPs), ama-microsatellites, noma izinguquko zokufaka/ukususa. Ama-PCR kits e-Ele Bam Bioscience afaneleka kakhulu kulezi zinhlelo zokusebenza ngenxa yokucacisa kwawo okuphezulu nokukwazi ukuphindaphinda imiphumela. Ezifundweni ezinkulu zokuhlaziya ufuzo, ikhono lokukhulisa amakhulu noma izinkulungwane zamasampula ngemiphumela engaguquki libalulekile ekwenzeni imephu yokuhlotshaniswa enembile kanye nezifundo zofuzo lwabantu. Ukusebenza okuqinile kwama-polymerase e-Ele Bam kuqinisekisa ukuthi ngisho nezindawo eziyinselele ezinokuqukethwe okuphezulu kwe-GC noma izici eziphindaphindayo ziyakhuliswa ngempumelelo. Abacwaningi abafunda izinto eziphilayo eziyisibonelo, izitshalo, noma imfuyo basebenzise ngempumelelo izingxube eziyinhloko ze-Ele Bam ekukhetheni okusekelwe kumaka, ukuhlaziya ukuhlukahluka, nokuhlola ubunikazi. Ukuhambisana kwala ma-kits nezindlela ezahlukene zokuthola, okuhlanganisa i-gel electrophoresis, i-capillary electrophoresis, nokuhlaziya ukuncibilika okunokuningi, kwengeza ekusebenziseni kwazo okuhlukahlukene. Ngaphezu kwalokho, ukwakheka kwe-hot-start kunciphisa ingozi yokukhuliswa okungaqondile okungadala ukudideka emiphumeleni yokuhlaziya ufuzo, ikakhulukazi lapho kusetshenziswa ama-degenerate primers noma amaphaneli amaningi. Ngokuhlinzeka ngemiphumela ethembekile nephindaphindekayo, izinto zokusebenza ze-Ele Bam Bioscience zisekela ukukhiqizwa kwedatha yofuzo yekhwalithi ephezulu engaphansi kokutholwa kwezinto ezintsha kwezolimo, i-conservation biology, kanye nofuzo lwabantu.

I-PCR yesikhathi sangempela yindlela enamandla yokulinganisa ukuvezwa kofuzo, ukulinganisa umthwalo wegciwane, nokuqinisekisa idatha ye-microarray. I-Ele Bam Bioscience inikezela ngezinto ezihlanganisiwe ze-qPCR ezinikezelwe ezihambisana nakho kokubili i-SYBR Green kanye namakhemikhali asuselwa kuphenathi, zinikeza ukuzwela okuphezulu kanye nobubanzi obubanzi bokulinganisa. Lezi zinto ezihlanganisiwe zakhiwe ukuze zinciphise isignali engaqondile futhi zikhulise isivuno sokukhanya, okuvumela ukulinganisa okunembile emazingeni amaningi obukhulu. Uhlelo lwesilungisi olungiselelwe luhlanganisa izinzisi ezivikela i-polymerase ngesikhathi sokujikeleza okushisayo futhi zithuthukise ukusebenza kahle kokuhlanganiswa kwe-primer. Ezifundweni zokuvezwa kofuzo, amakhithi e-Ele Bam qPCR abonise ukuhambisana okuhle kakhulu nedatha ye-RNA-seq, enikeza abacwaningi ukuzethemba eziphethweni zabo zebhayoloji. Ukubekezelela kwala makhithi izithiyo ezivamile kubaluleke kakhulu kumasampula omtholampilo afana negazi, umchamo, kanye nezicubu ze-tissue, lapho ubumsulwa bungahluka kakhulu. Ukwengeza, i-Ele Bam Bioscience ihlinzeka ngodayi we-ROX passive reference kumakhithi akhethiwe ukuze kulungiswe emishinini edinga lokho, iqinisekisa ukuhambisana nezinhlobonhlobo zezinkundla ze-qPCR. Inkampani iphinde inikeze isiqondiso sobuchwepheshe ekwakhiweni kwe-assay, okuhlanganisa izincomo zobude be-amplicon, izinga lokushisa lokuncibilika kwe-primer, kanye namasu okulinganisa. Ngokuhlanganisa kwabo ukusebenza, ukusebenziseka kalula, kanye nokusekelwa kochwepheshe, amakhithi e-Ele Bam Bioscience qPCR anika amandla abacwaningi ukuthi bathole idatha yokulinganisa ethembekile emikhakheni esukela kubhayoloji yomdlavuza kuya ekuqapheni izifo ezithathelwanayo.

Ukutholwa kwezifo ezibangelwa amagciwane, amagciwane, amakhowa, nezilwanyana eziphilayo kungenye yezinto ezibalulekile ezisetshenziswa yi-PCR emkhakheni wezempilo kanye nemvelo. Ama-PCR kits akwa-Ele Bam Bioscience aklanyelwe ukuhlangabezana nezidingo eziqinile zokuhlola izifo, lapho ukuzwela, ukucacisa, kanye nesivinini kubalulekile. Ukumelana nezithiyo kwama-kits kuvumela ukuhlolwa okuqondile kwezibonelo ezinjenge-sputum, ama-swabs, indle, kanye nama-homogenates okudla, kunciphisa isidingo sezinyathelo ezithatha isikhathi zokukhipha i-DNA. Kumafomethi e-multiplex PCR, ama-master mixes akwa-Ele Bam avumela ukutholwa kwezifo eziningi ngesikhathi esisodwa, konga izibonelo nama-reagents kuyilapho kuletha imiphumela esheshayo. Kumagciwane e-RNA, ama-RT PCR kits ahlinzeka ngokuguqulwa okuphambene okusebenzayo kanye nokukhulisa okuqinile, ngemikhawulo yokutholwa eqhathaniswa nezivivinyo ezinzima kakhulu zezentengiselwano. I-Ele Bam Bioscience ibambisene namalabhorethri okuxilonga ukuze iqinisekise imikhiqizo yayo ekutholeni izinto eziphathelene nezifo, okuhlanganisa i-SARS-CoV-2, amagciwane omkhuhlane, kanye nezakhi zokumelana nemithi elwa namagciwane. Ukuzibophezela kwenkampani ekhwalithini kuqinisekisa ukuthi i-kit ngayinye ihlangabezana namazinga okusebenza adingekayo ekusetshenzisweni kokuxilonga, okuhlanganisa ukuhambisana, ukunemba, kanye nomkhawulo wokutholwa. Ngaphezu kwalokho, i-Ele Bam Bioscience inikezela ngezinsizakalo zokwenza ngokwezifiso emalabhorethri athuthukisa izivivinyo zokuxilonga zangaphakathi, ihlinzeka ngezinhlanganisela ezilungiselelwe zama-primer nama-probe noma ukwakheka kwama-master mix okwenziwe ngokwezifiso. Ngokusekela umzamo womhlaba wonke wokulwa nezifo ezithathelwanayo, i-Ele Bam Bioscience ifaka isandla ekuthuthukisweni kwemiphumela yezempilo yomphakathi kanye nezikhathi zokuphendula ezisheshayo ngesikhathi sokuqubuka kwezifo.

I-Ele Bam Bioscience iyahlukanisa ngendlela yayo egxile kumakhasimende engagcini nje ngokuhlinzeka ngama-reagents. Ithimba labo lokweseka ezobuchwepheshe linabacwaningi bezinto eziphilayo abanolwazi abaqonda izinselelo abacwaningi ababhekana nazo emsebenzini wabo wansuku zonke. Noma ngabe udinga usizo ekulungiseni amazinga okushisa okuhlanganisa, ukuxazulula izinkinga zokukhuliswa okubuthakathaka, noma ukuklama ama-primer e-template enzima, ithimba lokweseka liyatholakala nge-imeyili, ucingo, noma ingxoxo ebukhoma ukuze linikeze usizo olukhethekile. Bangaphinda futhi banikeze izinqubo ezinemininingwane yezinhlelo zokusebenza ezithile, okuhlanganisa i-colony PCR, i-reverse transcription, ne-quantitative PCR. Emalabhorethri anezidingo eziyingqayizivele, i-Ele Bam Bioscience inikeza izinsiza zokukhiqiza ngokwezifiso, okuhlanganisa ukwakhiwa kwama-master mixes anemibala ehlukile, ukwakheka kwe-buffer okulungisiwe, noma ama-polymerases akhethekile. Lokhu kuguquguquka kuvumela abacwaningi ukuthi bathole ama-reagents alungiselelwe ngqo imisebenzi yabo, noma ngabe basebenzisa izinto zokuphatha uketshezi ezizenzakalelayo, ama-microfluidic devices, noma ama-portable PCR platforms. Inkampani iphinde inikeze izinketho zokupakisha ngobuningi kubasebenzisi abasebenzisa kakhulu, kwehlise izindleko zokusabela ngakunye futhi kunciphise imfucuza yokupakisha. Ukwengeza, i-Ele Bam Bioscience ingahlinzeka ngama-polymerases ahlanganisiwe ngokwezifiso ezinhlelweni ezidinga ukulinganisela kwesivinini nokwethembeka. Ngokwakha ubudlelwano besikhathi eside namakhasimende nokucela impendulo ngenkuthalo, inkampani iqhubeka nokuthuthukisa imikhiqizo yayo nezinsiza zayo ukuze ihlangabezane nezidingo eziguqukayo. Lokhu kuzinikela ekweneliseni amakhasimende kuyisisekelo somkhiqizo we-Ele Bam Bioscience futhi kuyisizathu esiyinhloko sokuthi abacwaningi babuyele kubo ngezidingo zabo ze-PCR.

Abacwaningi bangathola imininingwane eningiliziwe yemikhiqizo, amashidi edatha yokuphepha, kanye namanothi okusebenza kuwebhusayithi ye-Ele Bam Bioscience, enomhlahlandlela ophelele wokuxazulula izinkinga kanye nezinsiza zobuchwepheshe ezivuselelwa njalo. Inkampani iphinde ibambe ama-webinars nezinkundla zokusebenza mayelana nezinqubo ezingcono kakhulu ku-PCR, ezihlanganisa izihloko ezinjengokuklanywa kwama-primer, ukuthuthukiswa kokusabela, nokuhlaziywa kwedatha. Lezi zinhlelo zemfundo zikhombisa ukuzibophezela kwe-Ele Bam Bioscience ekuthuthukiseni umphakathi we-molecular biology ngokwabelana ngolwazi nokukhuthaza ukuthuthukiswa kwamakhono. Kulabo abanentshisekelo yokuhlola imikhiqizo ngokwabo, i-Ele Bam Bioscience inikeza amakhithi amasampula amahhala avumela abacwaningi ukuthi bahlole ukusebenza ngaphansi kwezimo zabo. Lokhu kuhlola okungenabungozi kuwubufakazi bokuzethemba kwenkampani emikhiqizweni yayo kanye nokuzimisela kwayo ukusekela ikhwalithi yayo. Ngokusekelwa okuphendulayo, amandla okwenza ngokwezifiso, kanye nomtapo wezinsiza olula, i-Ele Bam Bioscience inikeza uhlelo oluphelele olunika amandla abacwaningi ukuthi bafeze izinhloso zabo zesayensi.

Esikhathini lapho i-PCR iseyithuluzi elibalulekile lokuthola ulwazi lwesayensi nokuhlola izifo, ukukhetha izinto zokusebenza kungenza umehluko phakathi kwempumelelo nokwehluleka. I-Ele Bam Bioscience izibeke njengomhlinzeki ophambili wamakhithi e-PCR, imixube eyinhloko, ama-polymerase, nama-buffers anikeza ukuzwela okuphezulu, ukunemba, nokuphindaphindeka ezintweni eziningi zokusebenza. Ubuchwepheshe obujulile benkampani ekwakhiweni kwama-enzyme nasekulungiseni ama-buffer kuphumela emikhiqizweni ehlala ihamba phambili ezimeni eziyinselele, kusukela kuma-GC-rich templates kuya kumasampula omtholampilo agcwele izithiyo. Ngomugqa womkhiqizo osekelayo i-PCR ejwayelekile, i-RT PCR, i-qPCR, ne-multiplex PCR, i-Ele Bam Bioscience inikeza izixazululo cishe kuyo yonke inqubo ye-molecular biology. Izinzuzo eziyinhloko zokuthuthukiswa kokucaciswa, ukuncishiswa kwezithiyo, nezikhathi zokunweba ezisheshayo zihumushela ezinzuzweni eziphathekayo kubacwaningi: idatha ehlanzekile, ukuguqulwa okusheshayo, nezindleko eziphansi. Uma kuqhathaniswa namakhithi ezimbangi, imikhiqizo ye-Ele Bam Bioscience igqama ngokusebenza kwayo okuqinile, ukuvumelana okuhle kwe-batch, namandla okuncintisana. Ukuzibophezela kwenkampani ekusekeleni ubuchwepheshe nokwenza ngokwezifiso kuqinisa isithunzi sayo njengomlingani othembekile elabhorethri. Ngokukhetha amakhithi e-PCR e-Ele Bam Bioscience, abacwaningi batshala imali kumkhakha wekhwalithi, ukuthembeka, nokuzethemba ukuthi izivivinyo zabo zizokhipha imiphumela enengqondo nephindaphindekayo. Ukuze uthole ulwazi olwengeziwe ngohlu oluphelele lwemikhiqizo nezinsizakalo, vakashela i-Ikhaya ikhasi ukuze uthole umbono wonkana womkhiqizo, hlola i-Mayelana Nathi ikhasi ukuze uqonde umgomo wenkampani, hlola i-Imikhiqizo ikhasi lezinhlu ezinemininingwane, bese ufunda i-Izindaba isigaba sezibuyekezo zakamuva kanye nokugqanyiswa kwezicelo.

I-PCR master mix ejwayelekile isebenzisa i-Taq polymerase eqinile elungiselelwe ukukhuliswa okusheshayo kanye nesivuno esiphezulu, okwenza kufanelekele ukuhlaziya izinhlobo zofuzo ezijwayelekile, ukuklona, nokuhlaziya izingcezu. I-master mix enokwethembeka okuphezulu ihlanganisa i-polymerase yokuhlola enomsebenzi we-3′→5′ exonuclease, okwehlisa kakhulu izinga lamaphutha ngesikhathi sokukhuliswa. Lokhu kwenza inguqulo enokwethembeka okuphezulu ilungele izinhlelo zokusebenza lapho ukunemba kokulandelana kubalulekile, njengokulandelana, ukuguqulwa kofuzo, nokuhlanganiswa kofuzo. Zombili lezi master mix zinikezwa nama-buffer alungiselelwe, kodwa i-high-fidelity formulation ihlanganisa izingxenye ezengeziwe ezithuthukisa ukunemba ngaphandle kokunciphisa isivinini.

Yebo, i-Ele Bam Bioscience inikeza amakhithi e-RT PCR ahlanganisa i-reverse transcriptase ne-DNA polymerase eqinile ukuze kusetshenziswe izinyathelo ezinye noma ezimbili. Lawa makhithi aklanyelwe ukuguqula i-RNA ibe yi-cDNA ngempumelelo futhi kamuva andise ukulandelana okuhlosiwe ngokuzwela okuphezulu. I-RT PCR master mixes yakhiwe ukunciphisa ukonakala kwe-RNA futhi iqinisekise ukusebenza okungaguquki kuma-RNA templates ahlukahlukene, kuhlanganise nalawo anesakhiwo esiphezulu sesibili noma amanani aphansi. Abacwaningi bangasebenzisa ama-polymerase e-Ele Bam ne-reverse transcriptase yabo ngenqubo yezinyathelo ezimbili uma bethanda.

I-Ele Bam Bioscience inikeza izinhlobo eziningi ze-Taq polymerase, okuhlanganisa i-EleBam Taq DNA Polymerase evamile, i-EleBam Hot Start Taq DNA Polymerase, kanye ne-EleBam Long-Range Taq. I-Taq evamile ilungele izinhlelo zokusebenza ezijwayelekile, kuyilapho inguqulo ye-hot start ivimbela ukukhuliswa okungaqondile ngesikhathi sokuhlela ukusabela futhi ilungele i-multiplex PCR kanye nezinhloso ezinamakhophi aphansi. I-long-range Taq ilungiselelwe ukukhulisa izingcezu ezingaphezu kuka-10 kb. I-polymerase ngayinye inikezwa nge-buffer ehambisanayo futhi ingathengwa ngokwehlukana noma njengengxenye ye-master mix.

I-Ele Bam Bioscience ithuthukise izinhlanganisela ezikhethekile ze-buffer kanye ne-polymerase ezithuthukisa ukukhuliswa kwe-GC-rich DNA sequences, okuvame ukuba inselele ngenxa yokuthambekela kwazo ekwakheni izakhiwo ezesibili. Ama-master mixes aklanyelwe ama-GC-rich templates aqukethe izithasiselo ezinjenge-betaine ne-DMSO ezisiza ukwehlisa lezi zakhiwo, zithuthukisa ukusebenza kahle kwe-denaturation kanye nokufinyeleleka kwe-primer. Ekuhlolweni, amakhithi e-Ele Bam akhiqiza ngokungaguquki ama-amplicons aqinile, aqondile avela kuma-templates ane-GC content engaphezu kuka-70%, lapho imikhiqizo eminingi yezimbangi ihluleka noma ikhiqize imigqa eshwabene.

Impela. Izingxube eziyinhloko ze-Ele Bam Bioscience kanye nama-hot-start polymerases enziwe ngokukhethekile ukusekela izinhlelo zokusebenza ze-multiplex PCR, lapho kusetshenziswa khona izibambeli eziningi emthethweni owodwa. Uhlelo lwe-buffer olungisiwe lunciphisa ukwakheka kwe-primer-dimer futhi luqinisekisa ukukhuliswa okulinganiselayo kwayo yonke imigomo, ngisho nalapho ihluka ngobude noma nge-GC content. Ubuchwepheshe be-hot-start buvimbela ukunwetshwa ngaphambi kwesikhathi, kunciphisa imikhiqizo engaqondile. Abacwaningi bavame ukusebenzisa amakhithi e-Ele Bam emisebenzini ye-multiplex ehlanganisa izinhloso ezi-4–10 ngokucacile okuhle kanye nokuphindaphindeka okuhle.

Uma igcinwe ku-–20°C, ama-PCR master mixes nama-polymerase e-Ele Bam Bioscience agcina umsebenzi wawo ogcwele izinyanga ezingama-24 kusukela ngosuku lokukhiqizwa. Le mikhiqizo izinzile emazingeni amaningi okushisa nokuncibilika, kodwa sincoma ukwahlukanisa ukuze kugwenywe ukushisa nokuncibilika okuphindaphindiwe uma umkhiqizo uzosetshenziswa njalo. Ilebula ngayinye yomkhiqizo iqukethe inombolo ye-lot nosuku lokuphelelwa yisikhathi, futhi inkampani inikezela ngemiyalelo enemininingwane yokugcina nokuphatha encwadini yomkhiqizo. Ama-master mixes aqukethe amadayi kufanele avikelwe ekukhanyeni isikhathi eside.

Yebo, i-Ele Bam Bioscience inikeza izinsizakalo zokwenziwa kwezindlela ezenziwe ngokwezidingo zamakhasimende anezidingo ezikhethekile. Lokhu kuhlanganisa ukushintsha ukwakheka kwe-buffer, ukulungisa amazinga e-magnesium ion, ukufaka izinto ezithile ezinemibala noma izithasiselo, kanye nokuhlanganisa ama-polymerase ukuze kuzuzwe isivinini nokwethembeka okufiselekayo. Inkampani iphinde inikeze izinketho zokupakisha ezenziwe ngokwezidingo, njengamanani amakhulu noma amapuleti ahleliwe ngaphambili emisebenzini yokusebenza ephezulu. Abacwaningi abanesithakazelo bangaxhumana nethimba lokusekela lobuchwepheshe ukuze baxoxe ngezidingo zabo futhi bathole isilinganiso esenziwe ngokwezidingo.

I-Ele Bam Bioscience qPCR master mixes yakhelwe ukuletha ukuzwela okuphezulu, ngemikhawulo yokuthola ephansi kakhulu njenge-1-10 amakhophi e-DNA eqondiwe ngokusabela ngakunye ngaphansi kwezimo ezifanele. Ububanzi obunamandla obuhlukahlukene buhlanganisa okungenani ama-8 ama-orders of magnitude, okuvumela ukulinganisa okunembile kusukela ekugxilweni okuphezulu kuye kokuncane kakhulu kwesifanekiso. Izinga eliphansi le-fluorescence background kanye nokusebenza kahle kokukhulisa kwe-amplification kunomthelela ekulinganisweni okuhle kwe-signal-to-noise, okwenza zifanelekele izinhlelo zokusebenza ezinjengokuthola ukuguquka okungavamile, ukulinganisa ubuningi be-viral load, kanye nokuhlaziywa kwe-gene expression kwe-single-cell.

Yebo, iningi le-Ele Bam Bioscience master mixes nama-polymerases enziwe ngokubekezelela okuthuthukisiwe izithiyo ezivamile ze-PCR ezitholakala kumasampula angahlanzekile, okuhlanganisa igazi, i-serum, ama-homogenate ezitshalo, izincwishi zomhlabathi, kanye nama-matrix okudla. Lokhu kuvumela abacwaningi ukuthi benze i-PCR ngqo kuma-lysates noma kumasampula acutshungulwe kancane ngaphandle kokuhlanzwa okujulile kwe-DNA, konga isikhathi futhi kunciphise ingozi yokulahlekelwa isampula. Nokho, ukusebenza kungahluka kuye ngohlobo lwesampula kanye nokugxila kwezithiyo, ngakho sincoma ukuhlola nge-positive control futhi, uma kunesidingo, ukunciphisa isampula ukuze kuncishiswe ukuvinjelwa.

Usizo lwezobuchwepheshe luyatholakala kuwebhusayithi ye-Ele Bam Bioscience, lapho ungathola khona izincwajana zemikhiqizo ezinemininingwane, amanothi okusebenza, nemihlahlandlela yokuxazulula izinkinga. Inkampani iphinde inikeze usizo oluqondile nge-imeyili nangocingo, nethimba lososayensi bezinto eziphilayo abanolwazi abalungele ukusiza ngokuklama ukuhlola, ukuthuthukisa, nokuxazulula izinkinga. Ukwengeza, i-Uhlobo ikhasi linikeza imininingwane yokuxhumana kanye nefomu lokuthumela imibuzo, futhi i-Izindaba ingxenye ibonisa izibuyekezo emikhiqizweni emisha kanye nokugqamisa kwezicelo.