Description

The length of time required for a probed to hybridize with its target sequence is affected by the probe characteristics, its concentration, and the reaction conditions.


 

time in seconds required for half of the probe to

hybridize with immobilized target sequence =

= ((probe complexity) * LN(2)) / (3.5 * (10 ^5) * ((probe length) ^ 0.5) * (probe concentration in solution))

 

where:

• Probe complexity is length of any sequence repeated to make up the completed probe; if there are no repeated sequence, then the probe complexity equals the probe length; if the probe consists of n repeats of a nucleotide sequence with m nucleotides, then probe complexity equals m and probe length equals (m * n)

• 3.5 * (10 ^5) is the nucleation constant for a sodium concentration of 0.4 - 1.0 M, a hybridization temperature 25°C below the Tm for the reaction, and a pH between 5-9

• The probe concentration in solution is in moles of probe molecules per liter.

 


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