DNA ligation: Difference between revisions

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*Example - 10ul mix
*Example - 10ul mix


*1.0 $\mu$L 10X T4 ligase buffer
*1.0 <math>\mu</math>L 10X T4 ligase buffer


*0.5 $\mu$L T4 Ligase
*0.5 <math>\mu</math>L T4 Ligase


*6:1 Molar ratio of insert to vector ($\sim$10ng vector)
*6:1 Molar ratio of insert to vector (<math>\sim</math>10ng vector)
*X$\mu$l ddH$_2$O to bring the total to 10$\mu$l
*X<math>\mu</math>L dd<math>\rm{H_2O}</math> to bring the total to 10<math>\mu</math>L




'''Calculating Insert and Vector Amounts'''
'''Calculating Insert and Vector Amounts'''


<math>
Insert Mass =<math> 6\times\left[\frac{\rm{Insert\ Length}}{\rm{Vector\ Length}}\right]\times \rm{Vector\ Mass} </math>
Insert Mass = 6\times\left[\frac{Insert Length}{Vector Length}\right]\times Vector Mass  
</math>




'''Reaction Conditions'''
'''Reaction Conditions'''
*Let the 10 $\mu$l solution sit at 22.5$^o$C for 30min
*Let the 10 <math>\mu</math>L solution sit at <math>22.5^o</math>C for 30min
*Denature the ligase at 65$^o$C for 10min
*Denature the ligase at <math>65^o</math>C for 10min
*Dialyze for 20 minutes if electroporating
*Dialyze for 20 minutes if electroporating
*Use disks shiny side up
*Use disks shiny side up
*Store at -20C
*Store at -20C

Revision as of 11:07, 28 April 2005

Added By

  • --BC 20:40, 26 Apr 2005 (EDT)


Ligation Mix

  • Example - 10ul mix
  • 1.0 [math]\displaystyle{ \mu }[/math]L 10X T4 ligase buffer
  • 0.5 [math]\displaystyle{ \mu }[/math]L T4 Ligase
  • 6:1 Molar ratio of insert to vector ([math]\displaystyle{ \sim }[/math]10ng vector)
  • X[math]\displaystyle{ \mu }[/math]L dd[math]\displaystyle{ \rm{H_2O} }[/math] to bring the total to 10[math]\displaystyle{ \mu }[/math]L


Calculating Insert and Vector Amounts

Insert Mass =[math]\displaystyle{ 6\times\left[\frac{\rm{Insert\ Length}}{\rm{Vector\ Length}}\right]\times \rm{Vector\ Mass} }[/math]


Reaction Conditions

  • Let the 10 [math]\displaystyle{ \mu }[/math]L solution sit at [math]\displaystyle{ 22.5^o }[/math]C for 30min
  • Denature the ligase at [math]\displaystyle{ 65^o }[/math]C for 10min
  • Dialyze for 20 minutes if electroporating
  • Use disks shiny side up
  • Store at -20C