Protocol 25262: Separated PCR Assay - Mtap7<Gt(ROSABetageo)1Sor>alternate1
Version 1.2

Notes

6/13/17:

An external customer reported no hom progeny from a het x het cross.  Further review of literature indicates that the WT primers in this protocol may not flank the insertion junction.  It is our recommendation to confirm typing with LacZ or Neo qPCR.

The genotyping protocol(s) presented here have been optimized for reagents and conditions used by The Jackson Laboratory (JAX). To genotype animals, JAX recommends researchers validate the assay independently upon receipt of animals into their facility. Reaction cycling temperature and times may require additional optimization based on the specific genotyping reagents used.

Expected Results

Mutant = ~550 bp
Heterozygote = 262 bp and ~550 bp
Wild type = 262 bp

JAX Protocol

Protocol Primers

Primer 5' Label Sequence 5' → 3' 3' Label Primer Type Reaction Note
12400 CGT GCA ATC CAT CTT GTT CA Mutant Reverse A Neo R
15540 CTG CTT CCA CCT GTT GTG G Wild type Reverse B
oIMR3449 CCG GAT TGA TGG TAG TGG TC Mutant Forward A LacZ F
oIMR5979 GAA GCC GAG GGA GAG AGG Wild type Forward B

Reaction A

Component Final Concentration
ddH2O
Kapa 2G HS buffer 1.30 X
MgCl2 2.60 mM
dNTPS-kapa 0.26 mM
12400 0.50 uM
oIMR3449 0.50 uM
Glycerol 6.50 %
Dye 1.00 X
Kapa 2G HS taq polym 0.03 U/ul
DNA

Cycling

Step Temp °C Time Note
1 94.0 --
2 94.0 --
3 65.0 -- -0.5 C per cycle decrease
4 68.0 --
5 -- repeat steps 2-4 for 10 cycles (Touchdown)
6 94.0 --
7 60.0 --
8 72.0 --
9 -- repeat steps 6-8 for 28 cycles
10 72.0 --
11 10.0 -- hold
JAX uses a very high speed Taq (~1000 bp/sec), use cycling times recommended for your reagents.
JAX uses a 'touchdown' cycling protocol and therefore has not calculated the optimal annealing temperature for each set of primers.

Reaction B

Component Final Concentration
ddH2O
Kapa 2G HS buffer 1.30 X
MgCl2 2.60 mM
dNTPS-kapa 0.26 mM
15540 0.50 uM
oIMR5979 0.50 uM
Glycerol 6.50 %
Dye 1.00 X
Kapa 2G HS taq polym 0.03 U/ul
DNA

Cycling

Step Temp °C Time Note
1 94.0 --
2 94.0 --
3 65.0 -- -0.5 C per cycle decrease
4 68.0 --
5 -- repeat steps 2-4 for 10 cycles (Touchdown)
6 94.0 --
7 60.0 --
8 72.0 --
9 -- repeat steps 6-8 for 28 cycles
10 72.0 --
11 10.0 -- hold
JAX uses a very high speed Taq (~1000 bp/sec), use cycling times recommended for your reagents.
JAX uses a 'touchdown' cycling protocol and therefore has not calculated the optimal annealing temperature for each set of primers.

Strains Using This Protocol

This is the only strain that uses this protocol.