16S-EZ Frequently Asked Questions

Sample Preparation

1. What sample types can be submitted for 16S-EZ?

Genomic DNA (normalized to 20 ng/µL), fresh frozen tissue, or frozen cell pellets. For other sample types (e.g. soil or stool), please submit a request through our custom form.

2. Does GENEWIZ perform QC on my DNA samples prior to library preparation?

No, we do not perform sample QC in an effort to provide the fastest and most cost-effective service possible. Please measure the concentration of your samples (preferably using a dsDNA quantification assay such as Qubit or PicoGreen) and normalize to 20 ng/µL prior to submission.

3. Do DNA samples need to be normalized to 20 ng/µL?

Yes, GENEWIZ does not adjust the concentration prior to library preparation. Instead, we use equal volumes for each sample. For optimal results, please adjust your sample concentrations to 20 ng/µL prior to submission. We recommend using a dsDNA quantification assay such as Qubit or PicoGreen.

4. What is the 16S-EZ workflow?

The 16S-EZ workflow includes genomic DNA extraction (if necessary), amplification of the V3 and V4 hypervariable regions of 16S rRNA, library construction, sequencing on the Illumina® MiSeq with 2x250 bp configuration, and data analysis.

5. What is the sensitivity of your 16S-EZ assay?

Our targeted 16S-EZ assay can typically detect down to genus level. Sensitivity is ultimately dependent on the classification of the organism in the data analysis database and the abundance of the taxa in the sample itself.

6. How does 16S-EZ compare to other 16S methods on the market?

In addition to industry-leading turnaround time, 16S-EZ uses a proprietary primer pool to target the hypervariable V3 and V4 regions of the 16S rRNA gene, which has shown to be more sensitive and accurate compared to V4-only sequencing.

7. Does GENEWIZ offer whole genome shotgun metagenomics?

Yes, please submit your request through the Whole Genome Metagenomics form.

8. What happens if my samples do not meet your starting material requirements?

Please contact us via email at ngs@genewiz.com or call us toll-free at 1-877-GENEWIZ (436-3949) ext. 1.

9. What is the price for 16S-EZ?

Our standard price is $85 per sample for purified mixed genomic DNA. Extraction from cell pellets or frozen tissue incurs an additional charge, typically $50 per sample. There is no fee for using a GENEWIZ drop box for submission of genomic DNA. However, customers are responsible for any shipping charges. Please note that contract, institutional, or promotional pricing may vary.

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Sample Submission

10. How should I prepare the tubes?

Prepare samples in microcentrifuge tubes. Label each tube clearly with the sample name, as it appears on the order form. See example below.

11. How can I send my samples to GENEWIZ?

You can send your samples, along with a copy of the order receipt, to GENEWIZ using one of the following options.

Option #1 (for genomic DNA only): Submit samples into a local drop box. We have an extensive network of convenient drop boxes throughout the US. Contact us at via email ngs@genewiz.com or call us toll-free at 1-877-GENEWIZ (436-3949) ext. 1 to find one near you. DNA samples can be deposited at room temperature. Place the samples and order receipt together in a resealable plastic bag. Please contact us to schedule a pickup.

Option #2: Ship samples directly to our facility. Use the shipping address listed on the order receipt. For DNA samples, you can ship at room temperature or on blue/dry ice. For cell pellets or frozen tissue, please ship on dry ice.

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Results

12. How much data can I expect per sample?

GENEWIZ typically provides ~50,000 reads per sample.

13. What is the turnaround time?

Turnaround is 15 business days for purified DNA samples and 20-25 business days for frozen cell pellets or fresh frozen tissue.

14. What does the standard 16S-EZ data analysis include?

See below. Note that figures are for illustrative purposes only.

  • Taxonomic classification

  • Rank-abundance curve
  • Rarefaction curve
  • Principal coordinate analysis
  • Hierarchical clustering

15. Does GENEWIZ store my samples/libraries after sequencing?

We offer sample/library storage for up to 3 months following project completion. If you would like your sample returned, please contact us via email at ngs@genewiz.com or call us toll-free at 1-877-GENEWIZ (436-3949) ext. 1.

16. Will raw data be delivered to me?

Yes, all raw data (i.e. FASTQ files) will be delivered upon project completion.

17. How do I download my data?

Once the data analysis is complete, if applicable, a member of our bioinformatics team will reach out to you with a link to download your data from our sFTP server. Login credentials and instructions on how to retrieve your data will be included in the data delivery email. Please feel free to contact us should you have trouble retrieving your data. You can also refer to GENEWIZ's sFTP Data Download Guide for step-by-step instructions and troubleshooting tips.

18. Will my 16S-EZ data be secure at GENEWIZ?

We take data security very seriously and make every attempt to keep your data private and protected. The data transfer we offer is secure; however, should you desire an alternative delivery method, we are happy to work with you.

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Have a specific question?

Email | Phone 1-877-GENEWIZ (436-3949), Ext. 1

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