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The listed experimental SOPs that can be found on this Knowledge Base have been collected by NFDI4Microbiota's consortia members and participants from either (1) well-established and published sources or (2) consist of well-running in-house protocols that have been recently established by various research consortia and their domain expert with wet-lab experiences. | ||
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# Get Help | ||
## Get Help | ||
If you have any further questions about the management and analysis of your microbial research data, please contact us: [[email protected]](mailto:[email protected]) (by emailing us you agree to the privacy policy on our website: [Contact](https://nfdi4microbiota.de/contact-form/)) |
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|ITS Illumina Amplicon Protocol| Earth Microbiome | DNA Sequencing | [ITS Illumina Amplicon Protocol](https://www.protocols.io/view/emp-its-illumina-amplicon-protocol-14egnqypg5dy/v1) | | ||
{: .table .table-hover} | ||
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# Get Help | ||
## Get Help | ||
If you have any further questions about the management and analysis of your microbial research data, please contact us: [[email protected]](mailto:[email protected]) (by emailing us you agree to the privacy policy on our website: [Contact](https://nfdi4microbiota.de/contact-form/)) |
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docs_css: markdown | ||
--- | ||
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# Protocol | ||
## Protocol | ||
1. Centrifuge 40 ml of bacterial culture infected with phage at 6000 g for 30 min, remove the supernatant and filter it through a 0.45 μm syringe filter | ||
2. Centrifuge the filtrate at 35 000 g for 4 h, remove the supernatant and re-suspend the pellet in 600 μl SM buffer | ||
3. Add 2 μl of DNAse I and 20 μl of 10x DNAse buffer and incubate at 37°C for 1.5 h | ||
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10. Remove the supernatant and re-suspend the pellet in 100 μl TE buffer | ||
11. Store at 4°C | ||
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# Source | ||
In-house protocol provided by Sarah Schulz | ||
## Source | ||
In-house protocol provided by Sarah Schulz. | ||
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# Get Help | ||
## Get Help | ||
If you have any further questions about the management and analysis of your microbial research data, please contact us: [[email protected]](mailto:[email protected]) (by emailing us you agree to the privacy policy on our website: [Contact](https://nfdi4microbiota.de/contact-form/)) |
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--- | ||
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# Nucleic Acid extraction kits | ||
## Nucleic Acid extraction kits | ||
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## DNA extraction | ||
### DNA extraction | ||
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- Sponges - QIAamp® DNA Micro kit (QIAGEN){% cite Ruocco_2021 %} | ||
- Sponges –DNeasy® PowerSoil® Pro Kit (QIAGEN){% cite Ruocco_2021 %} | ||
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- Bacterial DNA from cultures (automated) - GenFind v3 Kit (Beckman Coulter) - in house protocol provided by Nicole Treichel | ||
- Bacterial DNA from low biomass (eg. FACS sorted) samlpes – mericon DNA Bacteria Kit (Qiagen)- in house protocol provided by Nicole Treichel | ||
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## RNA extraction | ||
### RNA extraction | ||
- Mosquitos - TRIzol LS (Invitrogen) – purified with RNeasy MinElute Cleanup Kit (Qiagen){% cite Ali_2021 %} | ||
- Sea Water - RNeasy mini kit (Qiagen){% cite Martínez-Pérez._2022 %} | ||
- Antarctic ticks - MagMax mirVana™ Total RNA isolation Kit (ThermoFisher Scientific){% cite Willis_2020 %} | ||
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- Bile samples - ZymoBIOMICS DNA/RNA Miniprep Kit - in house protocol provided by Nicole Treichel | ||
- mouse small intestine content - ZymoBIOMICS DNA/RNA Miniprep Kit - in house protocol provided by Nicole Treichel | ||
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# Get Help | ||
--- | ||
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## Get Help | ||
If you have any further questions about the management and analysis of your microbial research data, please contact us: [[email protected]](mailto:[email protected]) (by emailing us you agree to the privacy policy on our website: [Contact](https://nfdi4microbiota.de/contact-form/)) | ||
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## References | ||
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*It is difficult to process tissue samples at weights below 10 mg, so aim for at least 10 mg of tissue to start with | ||
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# Get Help | ||
## Get Help | ||
If you have any further questions about the management and analysis of your microbial research data, please contact us: [[email protected]](mailto:[email protected]) (by emailing us you agree to the privacy policy on our website: [Contact](https://nfdi4microbiota.de/contact-form/)) | ||
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## References | ||
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17. Submit dried sample in 1.5 ml eppendorf tube and can be stored at in dried ice. | ||
18. Blank control: prepare processed blank sample using same procedure but without biological sample (use water or buffer instead). | ||
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# Get Help | ||
## Get Help | ||
If you have any further questions about the management and analysis of your microbial research data, please contact us: [[email protected]](mailto:[email protected]) (by emailing us you agree to the privacy policy on our website: [Contact](https://nfdi4microbiota.de/contact-form/)) | ||
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## References | ||
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7. Sample are reconstituted in mobile phase (or 50% methanol) before analysis | ||
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# Get Help | ||
## Get Help | ||
If you have any further questions about the management and analysis of your microbial research data, please contact us: [[email protected]](mailto:[email protected]) (by emailing us you agree to the privacy policy on our website: [Contact](https://nfdi4microbiota.de/contact-form/)) | ||
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## References | ||
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10. Elute with 50 µl B | ||
Dry samples in Speedvac and reconstitute peptides in 1% formic acid supplemented with 4% acetonitrile. Samples are now ready for the injection on a mass spectrometer | ||
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# Get Help | ||
## Get Help | ||
If you have any further questions about the management and analysis of your microbial research data, please contact us: [[email protected]](mailto:[email protected]) (by emailing us you agree to the privacy policy on our website: [Contact](https://nfdi4microbiota.de/contact-form/)) | ||
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## References | ||
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Protein samples stored at -80ºC will be frozen. As repeated freeze-thaw cycles usually have a negative influence on protein samples, it is best to prepare small-sized, single-use aliquots that will be used up during the course of an experiment. 5-10% glycerol or other additives that protect against the effect of freezing and thawing can be added as well. After preparing your protein sample aliquots, it is important to flash-freeze them in liquid nitrogen before importing them into the -80ºC freezer for long-term storage. Many proteins are stable for months to years when stored under appropriate conditions at -80°C, but the exact time frame varies from protein to protein and should be determined experimentally. | ||
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| Sample | Procedure | Source or Link | | ||
|----------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------| | ||
| Sample | Procedure | Source or Link | | ||
|---------|------------|-----------------| | ||
| Activated sludge from wastewater | collected samples stored at 4°C for transport, within 6 h centrifuged at 6 500 g for 15 min at 4°C, supernatant removed and pellets stored at -20°C | {% cite Morin_2020 %} | | ||
| Antarctic ticks | collected from rocks, placed in RNALater and stored at -80°C within 4-8 h of collection | {% cite Wille_2020 %} | | ||
| Atlantic salmon | dissection samples placed in RNAlater and stored at -80°C | {% cite Karlsen_2022 %} | | ||
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| Turkey Trachea swabs | placed in 1 ml PBS, then stored at -20°C | {% cite Kursa_2021 %} | | ||
| Vaginal swabs | Skin samples were collected using Catch-All-Swabs (Epicentre Technologies, Wisconsin, USA). The swab was rubbed 5 times, with a circular motion, in the vaginal introitus and then the swab head was placed in a 15 ml sterile screw top collection tube containing 2 ml SCF-1 buffer (see photos above). | (in-house protocol provided by Pamela Ferretti) | | ||
| Yoghurt | after purchase, samples were placed immediately at 4°C for transport and within 12 h stared at -80°C | {% cite Islam_2021 %} | | ||
{: .table .table-hover} | ||
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# Get Help | ||
## Get Help | ||
If you have any further questions about the management and analysis of your microbial research data, please contact us: [[email protected]](mailto:[email protected]) (by emailing us you agree to the privacy policy on our website: [Contact](https://nfdi4microbiota.de/contact-form/)) | ||
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## References | ||
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