Tag Archives: FST

Data Analysis – Initial O.lurida Fst Determination from GBS Data

Finally running some analysis on the output from my PyRad analysison 20160727.

I’m following Katherine Silliman’s Jupyter notebook (2bRAD Subset Population Structure Analysis.ipynb) as a guide.

The initial analysis (which isn’t much) is in the Jupyter notebook below. The analysis will be continued on a later date.

Jupyter notebook: 20161117_docker_oly_vcf_analysis.ipynb

I’ve embedded the notebook below, but it’s much easier to view (there are many lengthy commands/filenames that wrap lines in the embedded version below) the actual file linked above.

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Western Blot – Purified (His column) decorin, FST, LAP & telethonin

10uL of each sample from yesterday (binding supe, washes and elution fractions) were mixed with 2x sample reducing buffer and boiled 5 mins. Samples were loaded onto Pierce 4-20% Tris-Glycine SDS/PAGE gels. 10uL of SeeBlue ladder was loaded. 5uL of positive control lysate was loaded. Gels were run @ 150V for 45mins.

Gels were transferred to nitrocellulose membrane (equilibrated in tris-glycine transfer buffer for 5mins) @15V for 15mins. Membrane washed briefly in 1x TBS-T, then blocked for 1hr. Gel was stained for 1hr in Coomassie stain and then destained w/ 10% acetic acid until bands were clearly visible.

Gel #1 – Decorin samples

Lane #1 – Ladder

Lane #2 – Positive control lysate

Lane #3 – Binding solution

Lane #4 – Wash

Lane #5 – Elution fraction #1

Lane #6 – Elution fraction #2

Lane #7 – Elution fraction #3

Lane #8 – Elution fraction #4

Lane #9 – Elution fraction #5

Lane #10 – Elution fraction #6

Lane #11 – Elution fraction #7

Lane #12 – Elution fraction #8

 

Gel #2 – FST samples

Lane #1 – Binding solution

Lane #2 – Wash

Lane #3 – Ladder

Lane #4 – Positive control lysate

Lane #5 – Elution fraction #1

Lane #6 – Elution fraction #2

Lane #7 – Elution fraction #3

Lane #8 – Elution fraction #4

Lane #9 – Elution fraction #5

Lane #10 – Elution fraction #6

Lane #11 – Elution fraction #7

Lane #12 – Elution fraction #8

 

Gel #3 – LAP samples

Lane #1 – Ladder

Lane #2 – Positive control lysate

Lane #3 – Elution fraction #1

Lane #4 – Elution fraction #2

Lane #5 – Elution fraction #3

Lane #6 – Elution fraction #4

Lane #7 – Elution fraction #5

Lane #8 – Elution fraction #6

Lane #9 – Elution fraction #7

Lane #10 – Elution fraction #8

Lane #11 – Binding solution

Lane #12 – Wash

 

Gel #4 – Telethonin samples

Lane #1 – Binding solution

Lane #2 – Wash

Lane #3 – Ladder

Lane #4 – Positive control lysate

Lane #5 – Elution fraction #1

Lane #6 – Elution fraction #2

Lane #7 – Elution fraction #3

Lane #8 – Elution fraction #4

Lane #9 – Elution fraction #5

Lane #10 – Elution fraction #6

Lane #11 – Elution fraction #7

Lane #12 – Elution fraction #8

 

Results:

Gels all have protein, but no elution fractions exhibit just a single band. Additionally, most of the samples across the different genes show similar banding patterns.

 

 

 

Primary Ab (anti-6x His) was added to membrane at a 1:15,000 dilution. This incubated for 1hr. Used Ab solution was stored @ 4C.

Membrane was washed with 1x TBS-T and fresh blocking solution was added per the protocol.

Secondary Ab (DAR HRP) was added to membrane @ 1:15,000 dilution and incubated for 30mins.

Membrane was washed with 1x TBS-T per the protocol.

Blots were developed using Millipore Immobilon chemiluminescent regent and imaged.

 

Results:

NONE! All four membranes are completely blank. Not even a signal from the positive control lysate. Infuriating! Why? Transfer was performed in the correct orientation (this was confirmed by the presence of the ladder dye on the membranes post-transfer). The same Ab stocks and developer stock were used as a couple of weeks ago, so these shouldn’t be a concern. Ab was definitely added to all the samples, so that’s ruled out. Ugh.

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