Library
Library may be submitted as individual samples or as pooled library. Individual samples should be at least 5nM in 10uL due to QC measures needed before pooling. Please let us know if you are submitting individual libraries that do not meet this requirement.
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Pooling Recommendations
An Adept reaction processes one linear library or a pool of ≤ 384 indexed linear libraries. When pooling, uniquely index each library in the pool and apply the following criteria to pool libraries with similar characteristics:
• Pool libraries that require the same run parameters.
• Do not pool Adept libraries with Elevate libraries.
• Balance the concentrations of libraries in a pool based on the sequencing throughput requirements for each sample. To maintain balance after library prep, make sure the libraries have similar size distributions.
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Library Amount
The final QC+compatibility protocol requires ≥ 3-25 nM pooled library in 25uL of 10 mM Tris buffer pH 7.5-8.5 or similar solution. The concentration of EDTA in the library CANNOT exceed 1 mM.
Fragment Size
Ideal library size is between 250-800bp. Library portions that contain > 1000 bp sequences may impact Q30 scores and require adjustment for density. Avoid significant amounts of adapter dimer or other short byproducts (< 175 bp). If the input library contains short byproducts, AUGenomics recommends additional cleanup using sample purification beads.
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Diversity Requirement
Please see PhiX recommendations below and note necessary PhiX on your Submission Form.
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Extracted Material
Extracted material may be submitted for library preparation services. Please ensure best practices are followed during your extraction protocols to prevent degradation or impurities in your sample. Elution buffers may be used, though RNAse/DNAse free water is an acceptable standard. Do not suspend samples in buffer containing EDTA, it will inhibit downstream reactions
RNA
Please follow best practices when working with RNA to eliminate potential degradation. The RNA sample should be free of salts (e.g., Mg2+ and guanidinium salts), divalent cation chelating agents (e.g., EDTA and EGTA) or organics (e.g., phenol and ethanol). RNA must be free of DNA. gDNA is a common contaminant from RNA preps. It may be carried over from the interphase of organic extractions or when the silica matrix of solid phase RNA purification methods is overloaded. If the total RNA sample may contain gDNA contamination, treat the sample with DNase I to remove all traces of DNA (DNase is not provided in this kit). After treatment with DNase I the enzyme should be removed from the sample. Any residual activity of the DNase I may degrade the oligos necessary for the enrichment.
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Library Amount
Samples should be suspended in nuclease-free water. For most preps, high quality RNA with a RIN score > 7 is required. Please ensure extracted RNA are shipped on dry ice for overnight delivery.
Poly(A)/mRNA
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RIN > 7
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200 pg/µL in 60µL (For higher rate of PCR duplicates)
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20 ng/µL in 60µL (For lowest rate of PCR duplicates)
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Total RNA/ Whole Transcriptome
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RIN > 7 or partially degraded RNA samples (RIN = 2 to 7)
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5 ng/µL in 15µL (For higher rate of PCR duplicates)
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90 ng/µL in 15µL (For lowest rate of PCR duplicates)
Immune Repertoire
Enriched B cell or T Cell or B cell and T Cell total RNA from peripheral blood mononuclear cells (PBMCs).
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RIN > 7
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5 ng/µL in 15µL (For higher rate of PCR duplicates)
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90 ng/µL in 15µL (For lowest rate of PCR duplicates)
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​Low Input RNA
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RIN > 8
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.5 pg/µL in 15µL (For higher rate of PCR duplicates)
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50 pg/µL in 15µL (For lowest rate of PCR duplicates)
Small RNA
Small RNA fragments should have a 5´ phosphate and 3´ OH to ligate and must be free of ATP.
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RIN > 7 (Not applicable for Exosomal RNA)
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17 ng/µL in 11µL (For higher rate of PCR duplicates)
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170 ng/µL in 11µL (For lowest rate of PCR duplicates)
DNA
It is important to remove all cations and chelators from DNA preparations. Make sure input DNA is in water, 10 mM Tris-HCl (pH 8.0), or buffer EB.
Standard DNA
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DIN > 7
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1 ng/µL in 40µL (For higher rate of PCR duplicates)
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100 ng/µL in 40µL (For lowest rate of PCR duplicates)
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Exome
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DIN > 8
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10 ng/µL in 15µL (For higher rate of PCR duplicates)
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100 ng/µL in 15µL (For lowest rate of PCR duplicates)
Cells
We recommend between 1x10^5 and 5x10^6 cells for submission. Although cell pelleting is preferred, we may accept alternative cell submissions. Some alternatives, such as in sub-recommended cell count situations, require a pre-made master mix to sort into. Please contact us when planning an alternative method.
Fresh
Please book a submission appointment or email us at sequencing@augenomics.com before submitting Fresh cells.
Snap Frozen
Cell pellets may be sent snap frozen and submitted on dry ice. To snap freeze, place the cells in a tube for long term storage (cryotube or Eppendorf tube with parafilm wrapped around the top) and either submerge the tube in liquid nitrogen or a liquid-nitrogen cooled bath (e.g., isopentane) or place the tube deep in a bucket of dry ice.
Trizol or equivalent lysis
Ensure that 1mL Trizol Reagent is added per 5x10^6 cells or 50 mg of tissue, homogenize sufficiently, then freeze. Samples in Trizol must be delivered on dry ice.
Stabilization Buffer
RNALater or similar buffers may be used to protect cells. Please follow manufacturer's guidelines for stabilization and note which buffer is used on your submission form.
Fixed Cells
Please book a submission appointment or email us at sequencing@augenomics.com before submitting fixed cells.
Tissue
Tissue may be submitted as either Fresh, Snap Frozen, in lysis reagent, or FFPE. Although a minimum of 3mg tissue is required, approximately 10mg is generally recommended for most tissue submissions.
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Fresh
Allprotect® Tissue Reagent by Qiagen or similar is required for submitting fresh tissue to stabilize DNA, RNA, and proteins. At least 10 volumes of Allprotect (or approximately 100 ul reagent per 10 mg of tissue) are required. After fully submerging samples, samples are stable up to 37C for 24h, 15--25C for 7 days, or 2--8C for 6 months. Allprotect Tissue Reagent is intended for use with tissues only, and is not suitable for stabilizing DNA, RNA, and proteins in cultured cells, whole blood, plasma, or serum. Please read AllProtect handbook before first-time use.
Snap Frozen
Tissue may be sent snap frozen and submitted on dry ice. To snap freeze, place the tissue in a tube for long term storage (cryotube or Eppendorf tube with parafilm wrapped around the top) and either submerge the tube in liquid nitrogen or a liquid-nitrogen cooled bath (e.g., isopentane) or place the tube deep in a bucket of dry ice.
Trizol or equivalent
All tissues submitted in Trizol must be adequately homogenized before hand-off or storage. Ensure that 10 volumes of Trizol are added to sample (1mL Trizol per 50--100mg). Samples in Trizol must be delivered on dry ice.
FFPE block
Standard formalin-fixation and paraffin-embedding procedures result in significant fragmentation of nucleic acids. To limit the extent of DNA fragmentation, be sure to fix tissue samples in 4-10% formalin as quickly as possible after surgical removal. Use a fixation time of 14-24 hours (longer fixation times lead to more severe DNA fragmentation, resulting in poor performance in downstream assays).
Thoroughly dehydrate samples prior to embedding. Store and deliver FFPE samples at low temperatures (2--8C). Four sections of 10--20um thickness should be available to cut.