Molecular Biology

Long Read  Sequencing

Major advances in throughput and data accuracy have led to a significant expansion of nanopore based long-read sequencing applications. The service currently employs Oxford Nanopore Technology (ONT) MinIon and PromethION sequencers for a variety of methodologies, including whole genome sequencing, methylation calling, cfDNA, single cell and direct RNA sequencing, as well as metagenomic analysis.

Desktop computer running Oxford Nanopore software

Single Cell Technologies

Most single cell sequencing projects are processed using 10X Genomics emulsion-based technology, including scRNA-Seq, immune cell profiling, multiome (scRNA & ATAC-Seq), and CRISPR screen projects (e.g. Perturb-Seq). An additional frequent application is Smart-Seq for single cell transcriptome profiling of rare cell populations. For this microwell plate-based technology the service has adopted a miniaturisation/automation approach, employing the department’s robotic platforms, including Bravo (Agilent), Mantis (Formulatrix) and Echo 550 (Beckman). Furthermore, automation solutions are currently explored for additional single cell technologies, including Combinatorial Indexing.

A plot showing distributions of different cell types, each group being defined by sharing similar properties

Clonal Sequencing

This comprehensive service covers all aspects of Next Generation Sequencing (NGS). An extensive portfolio of library prep methods for RNA and DNA sequencing is aimed at coping with a wide range in quantity and quality of inputs. Most NGS projects are processed in automated workflows using high throughput instrumentation, e.g. the Agilent Bravo liquid handling robot. The bulk of sequencing is performed on Illumina instruments, predominantly the high throughput platform, Novaseq 6000.

Close-up of sequencing equipment used for clonal analysis
Human Cell Line Authentication

Pathogen Screening

To help in compliance with the Institute’s policy on Mycoplasma control, we offer a regular screening service for Mycoplasma infection of cell lines. In addition, prior to injection into mice relevant cell line samples are screened for Mycoplasma and Murine Hepatitis Virus (MHV).

Human Cell Line Authentication

To maintain the highest standards of experimental work CRUK MI encourages regular testing of cultured cell lines for their authenticity. For accurate identification we offer a NGS based assay which detects highly variable short tandem repeat (STR) regions in the genome. Test results are cross-checked against an extensive in-house cell line database as well as ATCC references.

Graphical plot showcasing pathogen screening processes in clinical research

Sample QC

Many Molecular Biology applications, e.g. Next Generation Sequencing, require a minimum quality of their input material. To ascertain this, we offer a QC service for extracted DNA and RNA by processing sample aliquots on dedicated instrumentation, including Qubit (Thermo Fisher) for quantitation, as well as Bioanalyser and Fragment Analyser (Agilent) for quality analysis.

Sample quality control equipment displayed in a lab setting with clear labels

Spatial Transcriptomics/Proteomics

Sequencing based spatial omics is currently supported by three technology areas, 10X Genomics Visium, STOmics Stereo-seq, and Nanostring GeoMx, and is a multi-Core Facility spanning service.

The service is comprehensive and includes all aspects of tissue processing (by Histology), tissue imaging (VIA), region selection by the Service Users, followed by probe capture, library prep and sequencing by Molecular Biology. Read conversions and QC pipelines are administered by SciCom and CBS.

Visual representation of spatial patterns in research
representation of spatial distribution in research
Scientific image labelled 'Spatial-2,' depicting data related to spatial analysis in research
Visualization of spatial data in a research context.
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A note from the Team Leader – Wolfgang Breitwieser

With the capabilities to offer a diverse range of technologies – including spatial transcriptomics – the Institute Core teams are now in a unique position to offer tailored solutions to individual scientific challenges in this field.

Meet the Molecular Biology Core Facility Team

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Wolfgang Breitwieser

Core Facility Manager

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Hannah Bowden

Scientific Officer

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Rachel Horner

Senior Scientific Officer

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Jason Rumley

Scientific Officer

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Poppy Spiers

Scientific Officer

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John Weightman

Senior Scientific Officer

Get in touch

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