Imperial College London


Faculty of MedicineInstitute of Clinical Sciences

Professor of Genome Biochemistry & Molecular Biology



+44 (0)20 3313 3387chris.speck Website CV




Ms Alessandra Lisini +44 (0)20 3313 8236




3006CRB (Clinical Research Building)Hammersmith Campus






The objective of the group is to discover new mechanisms in the initiation and elongation of DNA replication and to understand the function of replication factors in hetero-chromatin formation. We have reconstituted the loading of the eukaryotic replicative helicase onto DNA, an essential step in DNA replication and  use this system to address the mechanism and regulation of two key events: the loading of the eukaryotic DNA helicase onto DNA and the kinase dependent activation of the helicase. More recently, we have started to investigate the role of the helicase loading factors in epigenetic memory, which has important implications for human disease and aging.

Enquires from motivated and exceptional students and postdocs to work in the group are always welcome. Please send full CV and cover letter to:

Postdoc Position 2019

A Wellcome Trust funded 2-year postdoc position (with possibility for extension) is available in the Speck-lab: 

This is an ideal opportunity for an enthusiastic and creative scientist to join a dynamic research team with excellent collaborators and facilities. The successful applicant will use cutting-edge biochemical approaches to work on a high profile project investigating novel mechanisms in eukaryotic DNA replication with therapeutic potential. 

The project will address: how do key DNA replication factors function and how they are regulated. The successful candidate will take advantage of efficient and well-established reconstituted systems and in vivo approaches (Evrin et al PNAS 2009, Fernandez-Cid et al Mol Cell 2013, Sun et al NSMB 2013, Samel et al G&D 2014, Sun et al G&D 2014, Chang et al 2015 Elife, Noguchi et al PNAS 2017) to address how the replicative helicase becomes loaded onto DNA. It is the ideal time point to start with this project, as a recent high resolution structure of the replicative helicase in complex with its loader by the Speck lab (Yuan et al NSMB 2017) has helped the group to formulate a number of new hypotheses. The main aim of the project is to discover how Cdt1 functions in MCM2-7 ring opening/closing and induction of ATP-hydrolysis, two key events during initiation of DNA replication. The research will involve design of constructs, expression and purification of proteins & protein complexes using bacteria and yeast. The purified factors will be used in established and novel biochemical assays (see Fernandez-Cid et al Mol Cell 2013), while structural analysis and analysis of protein dynamics by FRET assays will be carried out in collaboration with other group members and an local collaborator. The applicant will be working as part of a team, and will have ample opportunity to drive the project’s direction in a creative way. 

The group currently consists of 12 researchers, including 8 postdocs, 2 students and 2 technicians. The successful candidate will enjoy intensive interactions with group members specialised in cryo-EM, biochemistry or in vivo approaches generating a collaborative and highly productive atmosphere, with opportunities for advanced training. The lab is excellent equipped for biochemistry (2 AKTA’s, 4 temperature controlled shakers, 2 freezer mills, constant system french press, Biacore T100), structural EM work and has direct access to a staffed local cryo-EM facility (200kV FEG cryo-EM, Vitrobot IV, GPU- and data storage-cluster) and the Titan Krios as founding member of the LonCEN consortium. 

By joining the group, the candidate will not only work on high profile research projects, but will be also mentored in successful grant writing, networking and publishing. This will prepare the post holder to make the next career move. 

The appointment is initially on a 2 year fixed term contract (with possibility for extension) with salary of £37,904 per annum. The expected start date is early/mid 2019. The Speck lab is located in West London, at the Imperial College Hammersmith Campus.

Please apply here (reference MED01085). As part of your application please explain your motivation, future research ideas and interest. Informal enquiries can be direct to Christian Speck ( The post will be advertised until the position has been filled.


  • You have a fascination for discovery of fundamental biological mechanisms with medical relevance.
  • You are self-motivated and like to target ambitious research questions.
  • You do not become discouraged by technical problems, but employ troubleshooting to overcome specific issues.
  • You enjoy working in a team in order to tackle larger projects, while adding to your first author publication record.

What’s on offer:

  • The PI is mentoring group members in grant writing, project design and the writing of research publications.
  • The expanding lab with highly motivated postdocs & students, excellent equipment & facilities provides an ideal setting to make the jump to the next career stage.
  • The Institute offers among others a postdoctoral mentoring scheme and a yearly postdoctoral retreat, plenty opportunities for networking.

Major scientific accomplishments

Funding (past and present)

The Group is or has been funded by the BBSRC, DFG, EPSRC, EU (ERASMUS, Marie Curie), Wellcome Trust, Leukemia & Lymphoma Society, Max Planck Society, and MRC.   

Group News & Congratulations to …


Our eight GPU Cluster is almost ready for action - can't wait to see it happen...

Megan Turner joins the lab to carry out her MSc research project. Big welcome!

Audrey Mossler joins the group to gain experience in a UK lab. Big welcome!


Adrian Soderholm joins the lab to carry out his MRes research project. Big welcome!

Almutasem Saleh joins the lab as a Postdoc. Big welcome!

Marta, for passing her viva with minor corrections. Thanks to the examiners: Aga Gambus and Dave Carling. 

Tomorrow the lab goes on a retreat to Southminster. 3-days of fun, exploring of ideas & concepts, collaborative cooking and baking. Can't wait...

Adrian Soderholm joins the Group as a MRes student. Big welcome!

Cecilia Pennica joins the lab as a Postdoc. Big welcome!

I have never spend so much money on hard disks. Today our new 50TB storage server went online.

Marta for submitting her thesis. Well done!

Our new neighbour arrived - welcome to Kyle Morris, Senior Scientist,  advancing the cryo-EM efforts at the institute.

Owen Burbidge joins the lab as a Senior Biochemical Research Scientist. Big welcome!

Vera Leber joins the lab as a Postdoc. Big welcome!

Our new BBSRC grant was funded! Congratulations to everybody who helped, in particular Sarah.

Marta for having successfully applied for a Biochemical Society Sponsored Events Grant to support the Biochemistry Club.

Sarah for being awarded a prestigious two year year Deutsche Forschungsgemeinschaft (DFG) Research Fellowship

Ricardo Aramayo joined the institute as a senior cryo-EM scientist. He will take care of the cryo-EM facility. Big welcome!     


Katalin for being selected for the 2017 EMBL-EBI course in Structural Bioinformatics.

Yasunori  for being awarded a prestigious two year year Japan Society for the Promotion of Science (JSPS) Overseas Research Fellowship.

Chris Weekes joins the lab as a PhD student. Big welcome!

Group picnic on the scrubs. Quiche, pate, cake ... and even some sunshine!

Claire Rousseau from France joins the lab as a summer intern. Big welcome!

Katalin for raising funds for the Daphne Jackson Trust to support scientist to return after a career break.

Leonhard Karl from Germany joins the lab as an MSc student. Big welcome!

Marta for being awarded a Higher Education Academy Associate Fellowship

The London consortium for cryo-EM (LonCEM), of which the Speck lab is a founding member, was awarded £ 3 million by the Wellcome Trust to for high end cryo-Electron microscopy.

Katalin, who successfully applied towards the EMBO course on High-throughput protein production and crystallization.


Max for being awarded a prestigious two year Deutsche Forschungsgemeinschaft (DFG) Research Fellowship

Katalin Kondas join the lab as a Postdoctoral Daphne Jackson Fellow. Big welcome!

Group retreat in Norfolk at the Grange Manor House - lots of fun.

Henry for passing his MSc viva with distinction.

Marta for being awarded a bursary from the Biochemical Society UK for the 80th Harden Conference.

Alberto, who successfully applied for the Cryo-Electron Microscopy and 3D Image Processing course at EMBL

Christian has been promoted to Professor of Genome Biochemistry & Molecular Biology.

Alberto new toy, a graphics processing unit (GPU)-accelerated workstation, has arrived.

Katalin Kondas, who will join the Group in September, was awarded a two year Daphne Jackson Trust Fellowship.

Max Reuter joins the lab as a Postdoc. Big welcome!

Sarah new toy arrived - the FEI Vitrobot Mark IV.

Sarah Schneider and Yasanori Noguchi join the lab as Postdocs. Big welcome!

Silvia Tognetti, as the News & Views she wrote got published in Nature Cell Biology.

Marta and Indiana participated in the CSC microscopy workshop for local primary school children from Ark Conway Academy and Old Oak Primary School.

Christian gave an update of Athena SWAN progress of the institute and presented the mentoring awards at the annual retreat.


 The Imperial College PhD Presidents Scholarship and the MRC DTP studentship for October 2019 have been filled now. New fully funded PhD studentships will be advertised when they become available. Candidates that want to apply for scholarships can continue to contact Christian Speck by email (


  Imperial College PhD Scholarship Scheme   I am considering now to sponsor an excellent UK or European candidate for the fully funded Imperial College PhD Scholarship Scheme - academic year 2018/2019. Please contact me directly to discuss potential research proposals (

  3.5 YEAR MRC DTP Studentships   Candidates with an interest in genomic stability, epigenetics and disease please contact Christian to discuss potential research proposals. Competitive candidates for each of these projects will hold a degree in biochemistry or closely related subject with an outstanding academic record and some practical research experience. Applications can be submitted online through the Imperial College website; informal enquiries (CV/covering letter) may be sent to Christian via email (

OTher positions available

Bachelor/ MRes/ Master Students (UK/EU/International)

   Any students interested in pursuing research in our group should contact Christian Speck by email ( for potential openings. Please send your CV and explain your interest in the specific research area. European/International students must obtain independent funding through ERASMUS or via a government bursary to cover their expenses.       

PhD studentships

   Any students interested in pursuing postgraduate research in our group should contact me directly by email (; all prospective applicants should have or expect to obtain a 1st class honours degree (or equivalent) in biochemistry, or a closely related discipline.       

Postdoctoral opportunities

   If you are interested in joining the lab as a postdoc please contact Christian Speck by email ( sending your CV and explaining your interest in this specific research area. Outstanding PhD students are encouraged to make contact as early as possible to discuss potential fellowship applications, for example from the European Union, HFSP, etc.. Full assistance will be given in preparing a competitive research proposal with bridging funding being available to the candidates; we have an exceptional track record in accelerating the careers of outstanding postdoctoral researchers, with fellowships from Marie Curie, DFG and MRC awarded to members of our lab.   


      January 2019

DNA Rep lab 2019

About Prof. Christian Speck

   Christian is a Professor of Genome Biochemistry & Molecular Biology at the Institute for Clinical Sciences in the Faculty of Medicine. He is a Fellow of the Royal Society of Biology (FRSB) and has been the recipient of two prestigious research fellowships from an US charity foundation and the Max Planck Society, research grants from the UK research councils, and   received the Wellcome Trust Investigator award in 2015. Christian served as an invited panel member during the scientific evaluation of the Horizon 2020-MSCA-IF-2016/2017- LIF, DAAD  and the French National Research Agency - ANR. He sits on the editorial board of the Journals Microbial Cell, Biochemical Journal, chairs the Institutes Athena Swan committee and sits on the Clinical Science Centre Postgraduate Education Committee. He has given oral presentations at the renowned Cold Spring Harbor DNA replication meeting for the last 10 years. Christian has been invited to numerous European and UK universities for research seminars and as a session Chair to the Cold Spring Harbor Replication meeting and the FEBS Congress . During his B.Sc. degree in biotechnology at the Beuth Hochschule of Berlin, Prof. Speck undertook a project at Genentech Inc in South San Francisco USA for 6 month in the laboratory of Dave Goeddel (CSO, Genentech) to get industry experience. Christian obtained his Ph.D. in biochemistry from the Free University of Berlin under the guidance of the late Prof. Walter Messer working at the Max-Planck institute of Molecular Genetics, while being funded by a Max-Planck Fellowship to study bacterial DNA replication. This work resulted in 3 first author publications including two in EMBO Journal. He then moved to the US to work with Bruce Stillman, President of the Cold Spring Harbor Laboratory, while being supported by a Leukaemia and Lymphoma Research Fellowship exploring eukaryotic DNA replication and the role of Cdc6 in initiation of DNA replication. This work resulted in 4 first author publications in Nature Structural & Molecular Biology, PNAS and JBC. Following this period of training he moved to Imperial College London to establish his group in 2006 at MRC-CSC and since 2013 at Imperial College, Institute of Clinical Science. His group reconstituted the loading of the replicative helicase with purified proteins (F1000 – excellent) and identified a series of crucial mechanisms and regulatory principles in DNA replication being published in prominent journals such as Molecular Cell, Nature Structural & Molecular Biology Genes & Development and PNAS. In 2017 he became one of the founding members of the Wellcome Trust funded LonCEM consortium, which was awarded a Titan Krios cryo-EM with K3 detector currently being set-up.  In the same year, he became a member of the Imperial College London Centre for Structural Biology (CSB) and in 2018 member of the associated Block Allocation Group (BAG) for flexible access to the Krios 1-4 of eBIC (Diamond Light Source - Harwell). In 2017 Christian, while being supported by Sarah, has set-up the local cryo-EM screening facility at the Institute of Clinical Sciences. The facility is by now is fully operational and supports the electron microscopy efforts of the whole institute.                            

Selected Publications

Journal Articles

Noguchi Y, Yuan Z, Bai L, et al., 2017, Cryo-EM structure of Mcm2-7 double hexamer on DNA suggests a lagging-strand DNA extrusion model, Proceedings of the National Academy of Sciences of the United States of America, Vol:114, ISSN:0027-8424, Pages:E9529-E9538

Riera A, Barbon M, Noguchi Y, et al., 2017, From structure to mechanism-understanding initiation of DNA replication, Genes & Development, Vol:31, ISSN:0890-9369, Pages:1073-1088

Yuan Z, Riera A, Bai L, et al., 2017, Structural basis of Mcm2-7 replicative helicase loading by ORC-Cdc6 and Cdt1, Nature Structural & Molecular Biology, Vol:24, ISSN:1545-9993, Pages:316-+

Herrera MC, Tognetti S, Riera A, et al., 2015, A reconstituted system reveals how activating and inhibitory interactions control DDK dependent assembly of the eukaryotic replicative helicase, Nucleic Acids Research, Vol:43, ISSN:0305-1048, Pages:10238-10250

Chang F, Riera A, Evrin C, et al., 2015, Cdc6 ATPase activity disengages Cdc6 from the pre-replicative complex to promote DNA replication, Elife, Vol:4, ISSN:2050-084X

Sun J, Fernandez-Cid A, Riera A, et al., 2014, Structural and mechanistic insights into Mcm2-7 double-hexamer assembly and function, Genes & Development, Vol:28, ISSN:0890-9369, Pages:2291-2303

Samel SA, Fernandez-Cid A, Sun J, et al., 2014, A unique DNA entry gate serves for regulated loading of the eukaryotic replicative helicase MCM2-7 onto DNA, Genes & Development, Vol:28, ISSN:0890-9369, Pages:1653-1666

Riera A, Tognetti S, Speck C, 2014, Helicase loading: How to build a MCM2-7 double-hexamer, Seminars in Cell & Developmental Biology, Vol:30, ISSN:1084-9521, Pages:104-109

Sun J, Evrin C, Samel SA, et al., 2013, Cryo-EM structure of a helicase loading intermediate containing ORC-Cdc6-Cdt1-MCM2-7 bound to DNA, Nature Structural & Molecular Biology, Vol:20, ISSN:1545-9993, Pages:944-+

Fernandez-Cid A, Riera A, Tognetti S, et al., 2013, An ORC/Cdc6/MCM2-7 Complex Is Formed in a Multistep Reaction to Serve as a Platform for MCM Double-Hexamer Assembly, Molecular Cell, Vol:50, ISSN:1097-2765, Pages:577-588

Evrin C, Clarke P, Zech J, et al., 2009, A double-hexameric MCM2-7 complex is loaded onto origin DNA during licensing of eukaryotic DNA replication, Proceedings of the National Academy of Sciences of the United States of America, Vol:106, ISSN:0027-8424, Pages:20240-20245

Speck C, Chen ZQ, Li HL, et al., 2005, ATPase-dependent cooperative binding of ORC and Cdc6 to origin DNA, Nature Structural & Molecular Biology, Vol:12, ISSN:1545-9993, Pages:965-971

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