Team:Newcastle/Ligation

From 2010.igem.org

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(Ligation)
 
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=Ligation=
=Ligation=
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For standard ligation 100-200ng of vector DNA is required - can be checked using nanodrop
 
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A ligation calcultion can be used however a 1:3 and a 1:5 ratio tends to be used instead.
 
==Procedures==
==Procedures==
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{|border=1
{|border=1
|-
|-
-
!Reagents
+
!'''Reagents'''
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!1:3(μl)
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!'''1:3(μl)'''
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!1:5(μl)
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!'''1:5(μl)'''
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!Vector(μl)
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!'''Vector(μl)'''
|-
|-
-
|V
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|'''Vector'''
|1
|1
|1
|1
|1
|1
|-
|-
-
|I
+
|'''Insert'''
|3
|3
|5
|5
-
|
+
|N/A
|-
|-
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|10*BUFFER
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|'''10X BUFFER'''
|1
|1
|1
|1
|1
|1
|-
|-
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|Ligase T4
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|'''T4 Ligase'''
|1
|1
|1
|1
|1
|1
|-
|-
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|H2O
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|'''H2O'''
|4
|4
|2
|2
|7
|7
|-
|-
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|Total Volume
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|'''Total Volume'''
|10.0
|10.0
|10.0
|10.0
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|}
|}
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For sticky end ligations incubate on the bench of 3-4 hrs or overnight
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For sticky end ligation, incubate the tube containing above mentioned chemicals on the bench for a period of 3-4 hours or overnight.
 +
 
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Important point to note is that 1:3 dilution means that during ligation, for 1 unit of vector, there are 3 units of insert and in 1:5 ligation, for 1 unit of vector there is 5 units of insert.
 +
 
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==Notes==
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* For standard ligation, 100-200 ng of vector DNA is required and this can be checked using nanodrop protocol (refer to [[TeamNewcastleNanoDrop Spectrophotometer| Nanodrop Spectrophotometer]] protocol).
 +
 
 +
*Ligation calculation can be used to calculate the amount of vector and insert required for the ligation but 1:3 or 1:5 ligation ratios are used more frequently.
 +
 
 +
 
 +
'''Go back to our [[Team:Newcastle/Protocol list|Protocol List]]'''
{{Team:Newcastle/footer}}
{{Team:Newcastle/footer}}

Latest revision as of 14:37, 30 July 2010

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Ligation

Procedures

Set up the ligation mix according:

Reagents 1:3(μl) 1:5(μl) Vector(μl)
Vector 1 1 1
Insert 3 5 N/A
10X BUFFER 1 1 1
T4 Ligase 1 1 1
H2O 4 2 7
Total Volume 10.0 10.0 10.0

For sticky end ligation, incubate the tube containing above mentioned chemicals on the bench for a period of 3-4 hours or overnight.

Important point to note is that 1:3 dilution means that during ligation, for 1 unit of vector, there are 3 units of insert and in 1:5 ligation, for 1 unit of vector there is 5 units of insert.

Notes

  • For standard ligation, 100-200 ng of vector DNA is required and this can be checked using nanodrop protocol (refer to Nanodrop Spectrophotometer protocol).
  • Ligation calculation can be used to calculate the amount of vector and insert required for the ligation but 1:3 or 1:5 ligation ratios are used more frequently.


Go back to our Protocol List

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