Bo Stevens AMF Library Prep

Plates: BS_PLT1, BS_PLT2

PCR MasterMix

• Add 11 ul to each well of a hard shell, full skirt plate. Add 2 uL of primers and 2uL of template to each well.

Run on thermocycler program AMF35:

MagBead Cleanup:

• Equilibrate Beads to room temperature

• Add 24 ul of MagBeads to each well and 15 ul of replicate to same well of replicate

• Pipette mix up and down 10 times.

• Incubate at RT for 5 minutes

• Secure plate on magnet plate; incubate at RT for 5 minutes (until wells are clear)

• Remove 65 ul from each well; keep tips to left or right depending on the column to avoid bead pellet.

• Add 100 ul Fresh 80% EtOH to each well. Incubate 30 seconds. Remove 100 ul from each well

• Add 100 ul Fresh 80% EtOH to each well. Incubate 30 seconds. Remove 100 ul from each well

• Reaspirate from each well to assure maximum EtOH removal

• Allow plate to air dry for 7 minutes.

• Remove sample plate from magnet plate.

• Add 40 ul TE; pipette mix 10+ times. Incubate 2 minutes at RT.

• Place sample plate back on magnet for 5 minutes or until all wells are cleared.

• Transfer 40 ul to labeled transparent plate (Plate name_PCR_MIDs)

qPCR

• Make 1:1000 dilutions of column 1,6,10 from the PCR plates by adding 1 ul to 999 ul TE in a deep well plate:

• Add 16 ul of Illumina Library Quantification MasterMix to each well:

• Add 4 ul of template, pool, or standards to each well:

Results:

There were some outliers, but most samples generated 10s of nano moles (~50).

The pool via standard size estimation returned a mean of 42.66 nM. This should be adjusted for the difference between the standards' fragment sizes and the expected product size (452 vs 481). 42.66x(452/481) = 40.087 or ~40 nM

Sequencing Test:

Dilute to 1 nM based off qPCR results. qPCR results are in pM, but 1:1000 dilution used. The results are effectively in nM for pool.

• 1000/Results = ul of Pool to Add

1000/40 = 25uL of Pool to Add

• 1000 - uL of Pool to Add = ul of “10 mM Tris 8.5” to Add

1000- 25 = 975 uL of 10mM Tris 8.5

Dilute 1 nM full pool to loading concentration of 50 pM:

• Add 5 ul 1 nM Pool to 85 ul “10 mM Tris 8.5” and 10 ul 50 pM PhiX

• Remove iSeq 100 i1 Flow Cell from refrigerator 5’s crisper drawer and open white foil pack and allow to equilibrate to RT for 10-15 minutes.

• Open “iSeq 100 i1 Reagent Cartridge v2”. Turn on iSeq100

• Click on “Sequence”. Watch Video. Do what video tells you to do. Follow on screen instructions until run starts.

Pooling for CU sequencing:

Since the test sequencing included all samples, we are adjusting pooling for samples that both replicates returned less than 500 reads each. These samples will be pooled at a volume of 20 ul while all others will be pooled at 2 ul.