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  Principal Investigator: Alex Evilevitch, PhDProfessor of Cell Biology Email: Alex [dot] Evilevitch [at] med [dot] lu [dot] se   Lab photos  PUB night with the group, August 2023   Postdocs   José Ramón Villanueva Valencia, PhDEmail: jose_ramon [dot] villanueva-valencia [at] med [dot] lu [dot] se (jose_ramon[dot]villanueva-valencia[at]med[dot]lu[dot]se)    Santosh Gawali, PhD Email: santosh [dot]

https://www.virus-biophysics.lu.se/people - 2025-04-29

Open positions

Alex Evilevitch Research Group We are always interested in reviewing applications from MSc students, prospective PhD students and postdocs.Project description  Herpesviruses are a leading cause of human viral disease. Herpesviruses consist of a double-stranded DNA genome contained within a protein shell, termed the capsid, that is surrounded by an unstructured protein layer and a lipid-envelope. H

https://www.virus-biophysics.lu.se/open-positions - 2025-04-29

News

January 9, 2024 , Physics World "Viruses change structure at the temperature of the human body to better infect us". https://physicsworld.com/a/viruses-change-structure-at-the-temperature-of-the-human-body-to-better-infect-us/  November 8, 2023,  Lund University press release on our pioneering study published in PNAS showing how temperature triggers release of viral genome by changing the form and

https://www.virus-biophysics.lu.se/news-0 - 2025-04-29

Publications

To see Prof. Alex Evilevitch Open Researcher and Contributor ID (ORCID), click the link below (it opens another website):https://orcid.org/0000-0002-0245-9574   Below, there is the full list of publication of Prof. Alex Evilevitch. It links to another webpage related to the publisher.Villanueva Valencia J. R.,  Li D.,  Casjens S. R.,  Evilevitch A., "‘SAXS-osmometer’ method provides measurement of

https://www.virus-biophysics.lu.se/publications - 2025-04-29

Atomic Force Microscopy

We use atomic force microscopy (AFM) nano-indentation method to measure DNA mobility in the capsid. The mobility of DNA packaged inside the HSV-1 capsid is measured by recording the force resisting the capsid indentation when the AFM tip is brought into contact with the DNA-filled capsid in solution. Force resisting the AFM tip indentation of the capsid is recorded as the force-distance curve. Cap

https://www.virus-biophysics.lu.se/methods-and-techniques/atomic-force-microscopy - 2025-04-29

Cryo-Electron Microscopy

We use cryo electron microscopy (cryo-EM) and image reconstruction to examine the virion structure at subnanometer resolution. We also analyze structure and density of viral DNA packaged in a capsid.  Figure: Cutaway views from cryo-EM reconstructions of (A) HSV-1 C-capsid and (B) phage lambda procapsid and mature DNA-filled lambda capsid. HSV-1 and lambda phage capsids are shown to scale. Owing t

https://www.virus-biophysics.lu.se/methods-and-techniques/cryo-electron-microscopy - 2025-04-29

Microcalorimetry

The isothermal titration calorimetry (ITC) provides the most direct method to measure the internal energy of the confined viral genome. In order to experimentally dissect the thermodynamic determinants of viral DNA packaging and ejection energetics, we were first to use ITC to directly measure the heat released by DNA ejection from a virus capsid. This approach allows one to address experimentally

https://www.virus-biophysics.lu.se/methods-and-techniques/microcalorimetry - 2025-04-29

Super Resolution and Single Particle Fluorescence Microscopy

Super-Resolution Structured Illumination Microscopy (SR-SIM) provides resolutions down to 120 nm, allowing visualization of individual herpesvirus capsids (HSV-1) attached to the nucleus (HSV-1 C-capsid diameter is 125 nm).  Figure: Imaging of reconstituted capsid-nuclei system confirms specific capsid binding to the NPCs at the nuclear membrane. Representative super-resolution SIM image showing G

https://www.virus-biophysics.lu.se/methods-and-techniques/super-resolution-and-single-particle-fluorescence-microscopy - 2025-04-29

Small angle X-ray scattering (SAXS) and small angle neutron scattering (SANS) of viral genomes

Despite the structure of packaged viral DNA being central for ejection and consequentially infectivity of the virus, the detailed understanding of the packing structure of DNA inside the viral capsid. SAXS and SANS allow investigation of the structure of DNA filled capsids in solution in a wide range of environmental conditions. SAXS and SANS are powerful techniques that provides detailed structur

https://www.virus-biophysics.lu.se/methods-and-techniques/small-angle-x-ray-scattering-saxs-and-small-angle-neutron-scattering-sans-viral-genomes - 2025-04-29

Covers & Highlights

For many double stranded (ds) DNA viruses the viral genome is actively packaged into the virus capsid by a powerful molecular motor. This results in an energetically unfavorable state of the packaged genome, creating tens of atmospheres internal pressure inside the virion. Using a new calorimetric assay to determine the activation energy barriers associated with genome loss in response to elevated

https://www.virus-biophysics.lu.se/covers-highlights - 2025-04-29

Anna Blom Research Group

The Medical Protein Chemistry research group headed by prof. Anna Blom is located at the Wallenberg Laboratory within Skåne University Hospital in Malmö. The group is focused on the complement system in health and disease. Our ambition is to make high quality basic science based on clinically relevant questions and yielding novel diagnostic approaches and clinical interventions. Our research is su

https://www.protein-chemistry.lu.se/anna-blom-research-group-0 - 2025-04-29

Protein Chemistry Research Group

The Medical Protein Chemistry research group headed by prof. Anna Blom is located at the Wallenberg Laboratory within Skåne University Hospital in Malmö.  The group is focused on the complement system in health and disease. The complement, crucial part of innate immune system is involved in many basic biological processes such as defence against infections but when activated in a wrong place or no

https://www.protein-chemistry.lu.se/protein-chemistry-research-group - 2025-04-29

Top publications

Best publications from our group over past years. The Library in Dublin. King B.C., Kulak K, Krus U., Rosberg R., Golec E., Wozniak K., Gomez M.F., Zhange E., O'Connell D., Renström E. and Blom A.M. (2019) Complement C3 proteinst against autophagy related beta-cell detah via ATG16L1 interaction and regulation of autophagy.., Cell Metabolism, 29, 202-210. Holmquist E., Bartoschek M., Reitsma B., Ja

https://www.protein-chemistry.lu.se/top-publications - 2025-04-29

Selected publications from the group

List of selected publications from our research group exemplifying the projects we are conducting. The group in Madrid at Complement Worshop Blom. A. M., Pertoft H. and Fries E. (1995) Inter-a-inhibitor is required for the formation of the hyaluronan-containing coat on fibroblasts and mesothelial cells. J. Biol. Chem., 270, 9698-9701. Blom A. M., Mörgelin M., Öyen M., Jarvet J. and Fries E. (1999)

https://www.protein-chemistry.lu.se/top-publications/selected-publications-group - 2025-04-29

Projects

In blood, complement proteins are a major component and perhaps therefore most of these were identified already decades ago. However, only in recent years it has become apparent that complement not only plays a major role in innate defense against pathogens but also identifies foreign materials and removes waste (immune complexes and dying cells). The physiological relevance of complement is demon

https://www.protein-chemistry.lu.se/projects - 2025-04-29

Insulin and Immunity: when complement takes control

We are studying an unexpected role of complement – in the physiology and metabolism of pancreatic beta-cells. Surprisingly, this is related to intracellular functions of complement and therefore changes the way we perceive this “blood” system and will likely inspire discovery of many other intracellular effects of complement. We study the role of intracellular complement factor C3 and membrane bou

https://www.protein-chemistry.lu.se/projects/insulin-and-immunity-when-complement-takes-control - 2025-04-29

Bacterial complement evasion strategies

As a first line of defense against pathogens and a mediator between innate and adaptive immunity, complement is a particular focus of evasion strategies developed by pathogens.  We showed that one common strategy is to bind complement inhibitor C4BP, which leads to decreased opsonisation of bacteria with C3b impairing phagocytosis and allowing bacterial survival. It appears that binding of C4BP is

https://www.protein-chemistry.lu.se/projects/bacterial-complement-evasion-strategies - 2025-04-29

Pathologic complement activation in diseases

  Myriam Martin, Rebecca Trattner and Anna Blom Misguided or excessive complement activation is involved in many common diseases such as rheumatoid arthritis, systemic lupus erythematosus, vasculitis and age-related macula degeneration. In collaboration with clinicians we are studying molecular mechanisms of complement involvement in these diseases. Joint inflammation in rheumatoid arthritis (RA),

https://www.protein-chemistry.lu.se/projects/pathologic-complement-activation-diseases - 2025-04-29