Stock No: 004601
Protocol 23316: Standard PCR Assay - Tg(HDexon1)62Gpb
Version 2.3

Notes

*Keep all reagents on ice including while adding the DNA. Set up reactions as quickly as possible. Put samples into preheated block. This is a very fussy reaction. We have found if too many reactions are set up at one time the first reactions may fail. Set up independent duplicate reactions with second set set up in reverse order from first set.

**Cycling conditions: We use an MJ Tetrad 96 well block. PUT SAMPLES INTO PREHEATED BLOCK.

To visualize on a gel add 4.5 µl of loading buffer (12% ficoll 400, 0.2% bromophenol blue, 0.04 M EDTA) diluted 1:4 with TEN (10 mM Tris pH 8.0, 1 mM EDTA pH 8.0, 10 mM NaCl) to 3 µl PCR reaction. Load 7 µl on the gel. Separate on 2 % SeaKem agarose gel with 0.5 x SYBR Green I Nucleic Acid Stain.

Samples sized on ABI 3730.
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

Transgene = ~1037 bp (variable due to CAG repeat number)
Human = 250 bp
C57BL/6 = no band

JAX Protocol

Protocol Primers

Primer 5' Label Sequence 5' → 3' 3' Label Primer Type Reaction Note
oIMR6533 GGC TGA GGA AGC TGA GGA G A
TmoIMR1594 Fluorophore CCG CTC AGG TTC TGC TTT TA A

Reaction A

Component Final Concentration
ddH2O
Kapa 2G HS buffer 1.30 X
MgCl2 2.60 mM
dNTPS-kapa 0.26 mM
oIMR6533 0.50 uM
TmoIMR1594 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

Stock Number Strain Name
004601 B6CBA-Tg(HDexon1)62Gpb/2J
027421 B6J.Cg-Tg(HDexon1)62Gpb/160ChdiJ
2 strains use this protocol