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Cellfactory

NGS library preparation techniques

Different Techniques

The DNA sample is converted into a fragment library suitable for next-generation sequencing during NGS library preparation.

In our laboratory, we use several methods for this process, whereby universal adapter sequences and index sequences suitable for sample identification are added to the end of the DNA strands.

Shotgun library preparation:

A fragment library is created from the entire DNA sample without targeting a shotgun library.

This library type is suitable for whole genome sequencing and is an excellent means to characterise microbiome communities cost-effectively and quickly.

Amplicon library preparation:

It is possible to make previously prepared, PCR amplification-derived DNA fragments suitable for sequencing.

Single-cell:

We also use technologies that enable the characterisation of the transcriptome profile of a single cell or populations of limited cell numbers without prior RNA isolation.

mRNA

RNA sequencing is a powerful method for the qualitative and quantitative analysis of the human transcriptome and regulatory RNAs. As for “bulked mRNA” libraries, the mRNA population is specifically selected from the samples (poly-A selection) after total RNA isolation, and, following reverse transcription, an NGS library is prepared from the cDNA. This method allows for detecting and quantifying even rare coding transcript variants.

Total RNA

 When we are interested in more than gene expression patterns, it is possible to generate an entire RNA library by specifically removing ribosomal RNAs (ribodepletion)st of the RNAs that are irrelevant that make up mo for analysis.

miRNA

 miRNA library construction for the analysis of microRNAs involves rigorous size selection steps that specifically enable the sequencing and, thus, the study of small regulatory RNAs from total RNA samples.

Other QC Service

Need help?

If the service you are looking for is not listed, or you require specialist modification to an existing process, please do get in touch, and our team will build a bespoke offering with you.