1.Add an equal volume (equal to sample volume)of P/C to sample. 2.Mix (shake,don't vortex). 3.Take aqueous (upper)layer.(If dirty sample,repeat Ph/Chl step until interface is fairly clean). 4.Add equal volume chloroform,mix (shake,don't vortex). 5.Spin 3 min. 6.Take aqueous (upper)layer.(Optional: repeat Chloroform steps). 7.Add 1/10 volume 3M NaOAc (-> 0.3M),mix (shake). 8.Add 2 volumes ice-cold EtOH (100%),mix (shake). 9.Incubate on ice for 15 to 30 minutes.(Can store on ice or at -20°ree;C at this step). 10.Spin 10 minutes,4°ree;C. 11.Remove supernatant,being careful not to disturb pellet (DNA). 12.Half-fill tube with 70% EtOH,spin at least 2 minutes at 4°ree;C.(Opt: Re-rinse and spin again). 13.Pipet off the sup,careful not to touch pellet. 14.Air-dry (~ 1 hour). 15.Redissolve in 10 mM Tris. |
→如果您认为本词条还有待完善,请 编辑词条
上一篇DNA测序原理和方法 下一篇植物基因组的快速提取
词条内容仅供参考,如果您需要解决具体问题
(尤其在法律、医学等领域),建议您咨询相关领域专业人士。
0