ScreenEScellsbySouthernBlot
Digest DNA in 96-well plateTo each well add:4ul 10Xbuffer4ul Enzyme0.4ul Spermidine(0.4M)31.6ul H2O37?C 19h, then add 4ul loading dye to each well. Load into 400ml 1% agarose gel immediately or keep the plate at -20?C.Southern Blot1) Take picture of agarose gel to be blotted with phoshorescent ruler lined up along side it, such that the ruler is lined up with the top of the wells. This is so you can later estimate th......閱讀全文
Screen－ES－cells－by－Southern－Blot
Digest DNA in 96-well plateTo each well add:4ul 10Xbuffer4ul Enzyme0.4ul Spermidine(0.4M)31.6ul H2O37?C 19h, then add 4ul loading dye to each well. Lo
KARYOTYPING－ES－CELLS
An actively growing culture of cells is required, i e 2 - 3 d ES cell culture. The total number of cells needs to be between 106 - 107 cells.N B Read
Electroporation－of－ES－cells
Cells are routinely passaged two days prior to electroporating. Usually one 10 cm plate at approximately 80% confluency will provide enough cells for
Southern－Blot
1. Run gel (0.8 -1.0% agarose is best). For yeast chromosomal Southerns, digest 20 μg DNA. Use 50 ml minigel for most purposes. Photograph gel, but mi
Differentiate－ES－cells－into－glial－cells－and－neurons
Day -1: Pass ES cells at normal density on gelatinized plate to free the culture of contamination fibroblast cells.___________________Day 1:?Trypsiniz
FACS－Analysis－of－ES－Cells
Isolate cells and dissociate to single cell suspension (can use Gibco Cell Dissociation Buffer, Accutase or Trypsin)Wash with 10% FBS/DMEM:F12For surf
Routine－Culturing－of－ES－Cells
Cell are normally passaged every 2-3 days, this is important to avoid differentiation.Signs of differentiation are:-i) colonies are surrounded by flat
Genomic－Southern－Blot
SolutionsProtocol:Digest 5-10 μg genomic DNA overnight with restriction enzyme of choice.Run digested gDNA on 0.8% TAE gel with marker (with no ethidi
Southern－blot實驗
? ? ? ? ? ? 實驗方法原理 具有一定同源性的兩條核酸單鏈在一定的條件下，可按堿基互補的原則特異性地雜交形成雙鏈。利用瓊脂糖凝膠電泳分離經限制性內切酶消化的DNA片段，將膠上的DNA變性并在原位將單鏈DNA片段轉移至尼龍膜或其他固相支持物上，經干烤或者紫外線
Southern－blot實驗
Southern blot可應用于：（1）檢測重組DNA；（2）分析DNA樣品中是否有與探針序列同源的DNA片段；（3）驗證檢測片段的分子量大小。實驗方法原理具有一定同源性的兩條核酸單鏈在一定的條件下，可按堿基互補的原則特異性地雜交形成雙鏈。利用瓊脂糖凝膠電泳分離經限制性內切酶消化的DNA片段，將膠
Southern－blot實驗
實驗方法原理?互補的核苷酸序列通過Walson-Crick堿基配對形成穩定的雜合雙鏈分子DNA分子的過程稱為雜交。雜交過程是高度特異性的，可以根據所使用的探針已知序列進行特異性的靶序列檢測。雜交的雙方是所使用探針和要檢測的核酸。該檢測對象可以是克隆化的基因組DNA，也可以是細胞總DNA 或總RN
Differentiate－ES－cells－into－cardiac－myocytes
Day -1:?Pass ES cells at normal density on gelatinized plate to free the culture of contamination fibroblast cells.____________________Day 1:?Trypsini
SOUTHERN－BLOT的步驟
1. Run the gel as normal. Often for genomic southerns it is desirable to run long gels (18cm) over 4-6hrs.2. Photograph the gel with a ruler adjacent
Genomic－Southern－Blot－Analysis
This chapter describes a detailed protocol for genomic Southern blot analysis which can be used to detect transgene or endogenous gene sequences i
Southern－blot雜交鑒定
1）取10ul待測DNA，于一定濃度的瓊脂糖凝膠上進行電泳。(20mL,1.0%凝膠,)2) 凝膠用溴化乙錠染色，切掉凝膠四周多余部分，并在凝膠的一角作一記號, 拍照記錄電泳結果(拍照時, 凝膠旁放一尺子)。3) 雜交用膠的制備 (做以下步驟兩組合一)A.將凝膠浸沒入30mL 0.25mol/L H
Human－Embryonic－Stem－(ES)－Cell－Protocols——Thawing－Human－ES－cells
Remove Human ES cells from liquid nitrogen storage tank. Fill out a freeze/thaw form.Thaw cryovial by gently swirling in waterbath until only a small
Human－Embryonic－Stem－(ES)－Cell－Protocols——Freezing－Human－ES－Cells
?Collagenase cells for approximately 7 minutes at 37 °C (until edges of colonies are curling up).With a 5 ml pipet, gently pipet and scrape colonies f
Differentiate－ES－cells－into－cystic－embryoid－bodies
Day -1:?Pass ES cells at normal density on gelatinized plate to free the culture of contamination fibroblast cells.______________Day 1:?Trypsinized th
DNA（基因）檢測－Southern－Blot
DNA（基因）檢測－Southern BlotDNA吸印轉移1．室溫下將電泳后的瓊脂糖凝膠浸入500ml溶液A中，搖動30分鐘后換500ml新鮮溶液A再搖30分鐘，使DNA雙鏈堿變性。溶液A：5M NaCl?????300.0ml10M NaOH????50.0mlH2O?????????650.0
DNA印跡（Southern－Blot)實驗
【實驗原理】DNA印跡是1975年由英國Southern創建的。其基本原理是：DNA分子經限制性核酸內切酶酶切后，由瓊脂糖凝膠電泳將所得 DNA片段按分子質量大小分離，然后將DNA片段變性，并使凝膠中的單鏈DNA片段轉移到尼龍膜、硝酸纖維素膜(NC)或其他固相支持物上，此法中DNA 片段
Human－Embryonic－Stem－(ES)－Cell－Protocols——Splitting－Human－ES－cells－on－MEFs
based on splitting onto one plateWarm collagenase IV split media to 37 °C in a water bath.Aspirate media off of cell culture plate.Add the following a
Human－Embryonic－Stem－(ES)－Cell－Protocols—Splitting－Human－ES－cells－onMatrige
based on splitting onto on plateWarm collagenase media to 37°C in a water bath.Aspirate media off of cell culture plate.Add the following amount of co
Southern－blot檢測技術在模式動物制備中的應用?（二）
圖4.?Southern blot鑒定同源重組事件[4]另外，在制備基因敲進和條件性基因敲除模式小鼠過程中，Southern blot檢測是非常重要的一步。在我們以往的工作中，其中一例Cre定點敲進課題（如圖5），Southern blot檢測結果顯示：小鼠1號，有明顯的隨機插入現象。圖5. Sou
ELECTROPORATION－OF－ES－CELLS－AND－ISOLATION－OF－H/R－CLONES
Need 1.5-2 x 107 cells from a 2 day culture.1. Cells are harvested as normal, washed x 1 in PBS then taken up at conc. of 1.2 x 10 7 cells/ml in cold
Southern－Blot實驗原理及方法
實驗原理：Southern Blot是進行基因組DNA特定序列定位的通用方法。一般利用瓊脂糖凝膠電泳分離經限制性內切酶消化的DNA片段，將膠上的DNA變性并在原位將單鏈DNA片段轉移至尼龍膜或其他固相支持物上，經干烤或者紫外線照射固定，再與相對應結構的標記探針進行雜交，用放射自顯影或酶反應顯色，
核酸雜交技術(Northern－Blot、Southern－Blot和探針標記）
（一）Southern Blot原理：將待檢測的DNA分子用/不用限制性內切酶消化后，通過瓊脂糖凝膠電泳進行分離，繼而將其變性并按其在凝膠中的位置轉移到硝酸纖維素薄膜或尼龍膜上，固定后再與同位素或其它標記物標記的DNA或RNA探針進行反應。如果待檢物中含有與探針互補的序列，則二者通過堿基互補的原理進
Southern－blot實驗方法與步驟
用于檢測重組DNA，也可分析DNA樣品中是否有與探針序列同源的DNA片段。用于基因診斷，也可驗證檢測片段的分子量大小。將基因組DNA經限制性內切酶酶切，進行瓊脂糖電泳，把分離后定位在凝膠上的不同分子量的DNA經堿變性處理，將凝膠中變性的DNA轉移至一固相支持濾膜。利用標記的某一DNA、RNA或寡核苷
Southern－Blot原理及操作方法
原理：將待檢測的DNA分子用/不用限制性內切酶消化后，通過瓊脂糖凝膠電泳進行分離，繼而將其變性并按其在凝膠中的位置轉移到硝酸纖維素薄膜或尼龍膜上，固定后再與同位素或其它標記物標記的DNA或RNA探針進行反應。如果待檢物中含有與探針互補的序列，則二者通過堿基互補的原理進行結合，游離探針洗滌后用自顯影或
Southern－blot實驗方法與步驟
用于檢測重組DNA，也可分析DNA樣品中是否有與探針序列同源的DNA片段。用于基因診斷，也可驗證檢測片段的分子量大小。將基因組DNA經限制性內切酶酶切，進行瓊脂糖電泳，把分離后定位在凝膠上的不同分子量的DNA經堿變性處理，將凝膠中變性的DNA轉移至一固相支持濾膜。利用標記的某一DNA、RNA或寡核苷
核酸蛋白轉移電泳及雜交（Southern－Blot、Northern－Blot和...1
一、DNA Southern Blot及雜交 本技術可用于基因組DNA特定序列定位，尤其可分析某些基因的限制性內切酶長度多態性，對遺傳性疾病的早期基因診斷、產前診斷或基因變異等方面的研究有應用價值，其過程包括：樣品DNA內切酶水解、水解片斷的瓊脂糖凝膠電泳分離、分離后水解片斷的轉移(固定)、特異