■ E bonolo ebile e potlakile: Genomic DNA e ka ntšoa ka potlako liseleng tsa toeba ka metsotso e 60 ntle le ho sila leetrojene ea metsi le ho qhibiliha ha manyolo.
■ Kopo e pharalletseng: E loketse mohato o le mong oa DNA ea genomic ho tloha mohatleng oa toeba, tsebe, menoana le lisele tse ling.
■ Tlhatlhobo e phahameng: Taq polymerase e sebelisitsoeng sehlahisoa sena ke enzyme e fetotsoeng ea anti-anti-hot, e nang le template e phahameng le kamano e haufi le matlafatso, e loketseng haholo ho khetholla genotyping le transgenic identification.
■ Ho lemoha liphatsa tsa lefutso: Sehlahisoa se bonolo ho sebetsa se nang le liphetho tse tšepahalang, 'me se loketse haholo-holo tlhahlobo e phahameng ea lisebelisoa le ho lemoha lisele tsa toeba.
Lihlahisoa tsohle li ka fetoloa bakeng sa ODM / OEM. Bakeng sa lintlha,ka kopo tlanya Customized Service (ODM / OEM)
Ho sebelisa Mouse Tissue Direct PCR Kit le sehlahisoa se amehang ho mofani oa thepa A ho holisa 1000 bp, 2000 bp le 3000 bp likhechana tse tsoang mohatleng oa toeba, tsebe ea tweba le mohatla oa rat ka ho latellana. Sephetho se bonts'itse hore Kit ea Mouse Tissue Direct PCR e na le lintlha tse ikhethang le katleho.
Setšoantšo sa A-1
■ Template e na le litšila tsa protheine kapa li-inhibitors tsa Taq, jj. ——Tlhoekisa template ea DNA, tlosa litšila tsa protheine kapa u ntše template ea DNA ka lisebelisoa tsa tlhoekiso.
■ Tlatsetso ea template ha e felle ——Ho eketsa ka mokhoa o nepahetseng mocheso oa "denaturation" le ho lelefatsa nako ea denaturation.
■ Ho senyeha ha litempele ——Reka template hape.
Tlhahiso ea A-2
■ Boleng bo tlase ba li-primers ——Re kopanya hape selelekela.
■ Ho senyeha ha li-primer——Fana ka litlhahlobo tse phahameng tsa likhakanyo hore e be molumo o monyane bakeng sa ho li boloka. Qoba ho hatsela hangata le ho qhibiliha kapa nako e telele ea 4 ° C e bolokiloeng.
■ Moralo o sa nepahalang oa litlhahlobo (mohlala, bolelele ba lithuso ha boa lekana, botenya bo thehiloe lipakeng tsa lintho tsa pele, jj.
EA-3 Mg2+ho tsepamisa maikutlo
■ Mg2+ ho tsepamisa mohopolo ho tlase haholo ——Ho eketsa hantle Mg2+ mahloriso: Lokisetsa Mg2+ mahloriso ka letoto la likarabelo ho tloha ho 1 mM ho isa ho 3 mM ka karohano ea 0.5 mM ho fumana Mg2+ mahloriso bakeng sa template le primer ka 'ngoe.
Mocheso oa ho koala oa A-4
■ Mocheso o phahameng oa ho koala o ama tlamo ea selelekela le template. Fokotsa mocheso o kenang 'me u ntlafatse boemo ka gradient ea 2 ° C.
Nako ea katoloso ea A-5
■ Nako e khuts'oane ea katoloso —- Eketsa nako ea katoloso.
Phenomena: Mehlala e mebe e bonts'a lihlopha tsa tatellano.
Tšilafalo ea A-1 ea PCR
■ Tšilafalo ea sefapano ea tatellano ea sepheo kapa lihlahisoa tsa ntlafatso ——Tlhokomelo hore o se ke oa tšela sampole e nang le tatellano ea sepheo sa sampuli e fosahetseng kapa oa e tšolla ka har'a tube ea centrifuge. Li-reagents kapa lisebelisoa li lokela ho etsoa mochini o ikemetseng ho felisa li-acid tsa nucleic, mme boteng ba tšilafalo bo lokela ho khethoa ka liteko tse mpe tsa taolo.
■ Tšilafalo ea li-reagent ——Qobella li-reagents ebe u li boloka ka mocheso o tlase.
A-2 Tona-khōlōr
■ Mg2+ ho tsepamisa mohopolo ho tlase haholo ——Ho eketsa hantle Mg2+ mahloriso: Lokisetsa Mg2+ mahloriso ka letoto la likarabelo ho tloha ho 1 mM ho isa ho 3 mM ka karohano ea 0.5 mM ho fumana Mg2+ mahloriso bakeng sa template le primer ka 'ngoe.
■ Moralo oa semmuso o sa nepahalang, 'me tatellano ea sepheo e na le thuto ea bongoli le tatellano e sa amaneng le sepheo. ——Litlhahlobo tsa pele-pele.
Phenomena: Lihlopha tsa kholiso ea PCR ha li lumellane le boholo bo lebelletsoeng, ebang ke bo boholo kapa bo bonyenyane, kapa ka linako tse ling lihlopha tse ikhethileng tse matlafatsang le lihlopha tse sa ikhethileng tsa matlafatso lia etsahala.
Tlhahiso ea A-1
■ Lintlha tse qalang tsa semmuso
——Re-design ea khale.
■ Khakanyo ea semmuso e phahame haholo —— Ho eketsa mocheso oa denaturation hantle le ho lelefatsa nako ea denaturation.
Mofuta oa A-2 Mg2+ ho tsepamisa maikutlo
■ Mokha oa Mg2+ mahloriso a phahame haholo -— Fokotsa hantle mohopolo oa Mg2 +: Lokisetsa Mg2+ mahloriso ka letoto la likarabelo ho tloha ho 1 mM ho isa ho 3 mM ka karohano ea 0.5 mM ho fumana Mg2+ mahloriso bakeng sa template le primer ka 'ngoe.
A-3 Thermostable polymerase
■ Palo ea enzyme e fetelletseng —— Fokotsa palo ea enzyme ka nepo ka linako tse ling tsa 0.5 U.
Mocheso oa ho koala oa A-4
■ Mocheso o kenyang letsoho o tlase haholo —— Ho eketsa mocheso oa ho koala ka nepo kapa ho sebelisa mokhoa oa mekhahlelo e 'meli
Lipotoloho tsa A-5 PCR
■ Lipotoloho tse ngata tsa PCR ——Ho fokotsa palo ea lipotoloho tsa PCR.
Tlhahiso ea A-1—— Boemo bo ikgethang ba maemo a mabe— - Iketsetse meralo ea mantlha, fetola boemo le bolelele ba semmuso ho ntlafatsa botumo ba eona; kapa ho etsa sehlaha sa PCR.
DNA ea A-2
——Thempleite ha e ea hloeka— - Hloekisa template kapa u ntše DNA e nang le lisebelisoa tsa tlhoekiso.
EA-3 Mg2+ ho tsepamisa maikutlo
——Mahl2+ ho tsepamisa mohopolo ho phahame haholo -— Fokotsa hantle Mg2+ mahloriso: Lokisetsa Mg2+ mahloriso ka letoto la likarabelo ho tloha ho 1 mM ho isa ho 3 mM ka karohano ea 0.5 mM ho fumana Mg2+ mahloriso bakeng sa template le primer ka 'ngoe.
E-4 dNTP
——Khokahano ea li-dNTP li holimo haholo —— Fokotsa mohopolo oa dNTP ka nepo
Mocheso oa Annealing oa 5
——Thempereichara e tlaase e kenang ——Ho eketsa hantle mocheso o tlatsetsang
Lipotoloho tsa A-6
—Kenale palo ea potoloho
Mohato oa pele ke ho khetha polymerase e loketseng. Kamehla Taq polymerase e ke ke ea bala liphoso ka lebaka la ho haelloa ke ts'ebetso ea 3'-5 'ea tokollo,' me ho se tšoane hantle ho tla fokotsa ts'ebetso ea likhechana. Ka hona, Taq polymerase e tloaelehileng e ke ke ea holisa hantle likaroloana tsa sepheo tse kholo ho feta 5 kb. Taq polymerase e nang le phetoho e khethehileng kapa botšepehi bo phahameng ba polymerase e lokela ho khethoa ho ntlafatsa katleho le ho fihlela litlhoko tsa sehlotšoana se selelele. Ntle le moo, kholiso ea likhechana tse telele e boetse e hloka phetoho e tsamaellanang ea moralo oa khale, nako ea denaturation, nako ea katoloso, pH ea buffer, jj. Hangata, li-primers tse nang le 18-24 bp li ka lebisa ho chai e ngata. Bakeng sa ho thibela tšenyo ea template, nako ea denaturation ho 94 ° C e lokela ho fokotsoa ho isa ho 30 sec kapa ka tlase ho potoloho, mme nako ea ho nyoloha mocheso ho ea ho 94 ° C pele amplification e lokela ho ba tlase ho 1 min. Ho feta moo, ho beha mocheso oa katoloso ka 68 ° C le ho rala nako ea katoloso ho latela sekhahla sa 1 kb / min ho ka netefatsa kholiso e sebetsang ea likhechana tse telele.
Sekhahla sa phoso ea kholiso ea PCR se ka fokotsoa ka ho sebelisa li-polymerase tse fapaneng tsa DNA ka bots'epehi bo phahameng. Har'a li-polymerase tsohle tsa Taq DNA tse fumanehang ho fihlela joale, enzyme ea Pfu e na le sekhahla se tlase sa phoso le botšepehi bo phahameng ho fetisisa (bona tafole e hoketsoeng). Ntle le khetho ea enzyme, bafuputsi ba ka tsoela pele ho fokotsa sekhahla sa phetoho ea PCR ka ho ntlafatsa maemo a karabelo, ho kenyeletsoa le ho ntlafatsa sebopeho sa buffer, polasetiki ea thermostable polymerase le ho ntlafatsa palo ea potoloho ea PCR.
Ho tloha ha e theoa, fektheri ea rona e ntse e nts'etsapele lihlahisoa tsa maemo a pele ka ho latela molao-motheo
ea boleng pele. Lihlahisoa tsa rona li fumane botumo bo botle indastering ebile li na le boleng bo phahameng har'a bareki ba bacha le ba khale ..