Tuesday, July 28, 2015

7 28 2015 Normalizing Gene Primer Tests

In an effort to find a better normalizing primer than the Actin one I have, I developed 4 possible normalizing primers. Today I tested all 4 of them on a 1:9 dilution of cDNA. 

Primers:

1688GAPDH_FWDTGCTCCTTGCATTTCCGTCAJH7/22/2015205060O.luridaGlyceraldehyde-3-phosphate dehydrogenase (GAPDH) (EC 1.2.1.12)Q6BMK0
1687GAPDH_REVCGCTCCTTCCAAGTCTCCAGJH7/22/2015206060O.luridaGlyceraldehyde-3-phosphate dehydrogenase (GAPDH) (EC 1.2.1.12)Q6BMK0
1686Act_FWDGTTCTCCTGTCGGGTGGAAGJH7/22/2015206060O.luridaActinP53498
1685Act_REVCACCATGAAACGCCGACTTGJH7/22/2015205560O.luridaActinP53498
1684EFG_FWDACCCAAGGACAGGGAGAGTTJH7/22/2015205560O.lurida"Elongation factor G, mitochondrial (EF-Gmt) (Elongation factor G 1, mitochondrial) (mEF-G 1) (Elongation factor G1) (Protein iconoclast)"B3MK91
1683EFG_REVTGTGTCCCCTTGTTGCTCTCJH7/22/2015205560O.lurida"Elongation factor G, mitochondrial (EF-Gmt) (Elongation factor G 1, mitochondrial) (mEF-G 1) (Elongation factor G1) (Protein iconoclast)"B3MK91
1682EF1d_FWDGAACTGCCCACTGATTTGCCJH7/22/2015205560O.luridaElongation factor 1-delta (EF-1-delta)A5D989
1681EF1d_REVTGTGGGGTGAAACACGTTGAJH7/22/2015205060O.luridaElongation factor 1-delta (EF-1-delta)A5D989
Reagent Table:

VolumeReactions X116
Ssofast Evagreen MM101160
FWD Primer0.558
REV Primer0.558
1:9 cDNA9
  1. Added reagents from greatest to least volume
  2. Vortexed
  3. Centrifuged briefly
  4. Pipetted 11 ul Master Mix to each tube
  5. Pipetted 9 ul of 1:9 cDNA each column using a channel pipetter
  6. Centrifuged plate at 2000 rpm for 1 minute
  7. Ran Program Below
Program:
StepTemperatureTime
Initiation95 C10 min
Elongation95 C30 sec
60 C1 min
Read
72 C30 sec
Read
Repeat Elongation 39 times
Termination95 C1 min
55 C1 sec
Melt Curve Manual ramp 0.2C per sec Read 0.5 C55 - 95 C30 sec
21 C10 min
End
Plate Layout:
EFGEF1DGAPDHActin
1234
NTCNTCNTCNTC
DNased 42215 HC8DNased 42215 HC7DNased 42215 HC6DNased 42215 HC5
DNased 42215 NC8DNased 42215 NC7DNased 42215 NC6DNased 42215 NC5
DNased 42215 SC8DNased 42215 SC7DNased 42215 SC6DNased 42215 SC5
DNased 42215 HT1 8DNased 42215 HT1 7DNased 42215 HT1 6DNased 42215 HT1 5
DNased 42215 NT1 8DNased 42215 NT1 7DNased 42215 NT1 6DNased 42215 NT1 5
DNased 42215 ST1 8DNased 42215 ST1 7DNased 42215 ST1 6DNased 42215 ST1 5
NTCNTCNTCNTC
Results:
EFG
Amp
 Melt Curve
EF1d
Amp
 Melt Curve
GAPDH
Amp
 Melt Curve
Actin
Amp
 Melt Curve

The best primer looks like it EF1d as the curves are strong and the melt curve is tight. EFG is second best, good curves and ok melt curve. Actin is third best, amplification curves are weak as well as the melt curve. GAPDH failed to amplify. 

So I'm going to run EF1d tomorrow. 

You can see the raw data here

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