Medicine

Ian Clarke

BSc, PhD

Primary position:
Professor of Molecular Microbiology/Virology

Background

Professor Clarke was appointed to the Chair of Molecular Microbiology/Virology in 1998. He graduated in Microbiology from the University of Leeds in 1979 and completed his PhD in Molecular Virology at the University of Warwick in 1982 working on genomic variation in rotaviruses. He worked in the food industry before appointment to a ‘new blood lectureship’ at the University of Southampton. Subsequently he has held various positions at Southampton including Director of Division and is currently head of the Molecular Microbiology group.

Professor Clarke leads a large group that is interested in host-pathogen interactions with special emphasis on intracellular pathogens and diseases for which there are currently no effective vaccines. He has particular interests in Chlamydia and norovirus research. The Chlamydia research group is focused on genomics, basic chlamydial molecular biology, chlamydial epidemiology and the development of point of care testing. In collaboration with Dr. Paul Lambden, Professor Clarke has particular interests in human noroviruses with a long term aim of developing a cell culture system. The Southampton virus was the first norovirus to be characterised at the molecular level (published in Science). His research group is based within the Faculty of Medicine and comprises both clinical and non-clinical scientists with postgraduate students. Potential students, post doctoral scientists or clinician scientists who are intesrted I joining his group are encouraged to contact Professor Clarke.

Qualifications

BSc, Microbiology University of Leeds (1979)
PhD, University of Warwick (1982)

Appointments held

1999- present Head of Molecular Microbiology Group

2004– 09 Director, sub-Division of Tissue, Infection and Repair

2001– 04 Director, Molecular Microbiology and Infection

1998- 01 Director, Division of Cell and Molecular Medicine

Professor Ian Clarke's photo

Publications

The University of Southampton's electronic library (e-prints)

Article

O'Neill, C.E., Seth-Smith, H.M.B., Van Der Pol, B., Harris, S.R., Thomson, N.R., Cutcliffe, L.T. and Clarke, I.N. (2013) Chlamydia trachomatis clinical isolates identified as tetracycline resistant do not exhibit resistance in vitro: whole-genome sequencing reveals a mutation in porB but no evidence for tetracycline resistance genes. Microbiology , 159, (4), 748-756. (doi:10.1099/mic.0.065391-0 ). (PMID:23378575).
Seth-Smith, Helena M.B., Harris, Simon R., Skilton, Rachel J., Radebe, Frans M., Golparian, Daniel, Shipitsyna, Elena, Duy, Pham Thanh, Scott, Paul, Cutcliffe, Lesley T., O'Neill, Colette, Parmar, Surendra, Pitt, Rachel, Baker, Stephen, Ison, Catherine A., Marsh, Peter, Jalal, Hamid, Lewis, David A., Unemo, Magnus, Clarke, Ian N., Parkhill, Julian and Thomson, Nicholas R. (2013) Whole-genome sequences of Chlamydia trachomatis directly from clinical samples without culture. Genome Research (doi:10.1101/gr.150037.112). (PMID:23525359).
Wang, Yibing, Cutcliffe, Lesley T., Skilton, Rachel J., Persson, Kenneth, Bjartling, Carina and Clarke, Ian N. (2013) Transformation of a plasmid-free, genital tract isolate of Chlamydia trachomatis with a plasmid vector carrying a deletion in CDS6 revealed that this gene regulates inclusion phenotype. Pathogens and Disease, 67, (2), 100-103. (doi:10.1111/2049-632X.12024).
Wang, Yibing, Kahane, Simona, Cutcliffe, Lesley T., Skilton, Rachel J., Lambden, Paul R., Persson, Kenneth, Bjartling, Carina and Clarke, Ian N. (2013) Genetic Transformation of a Clinical (Genital Tract), Plasmid-Free Isolate of Chlamydia trachomatis: Engineering the Plasmid as a Cloning Vector. PLoS One, 8, (3), e59195. (doi:10.1371/journal.pone.0059195). (PMID:23527131).
Labiran, C., Clarke, Ian N., Cutcliffe, Lesley T., Wang, Yibing, Skilton, Rachel J., Persson, Kenneth, Bjartling, Carina, Herrmann, Björn, Christerson, Linus and Marsh, Peter (2012) Genotyping markers used for multi locus VNTR analysis with ompA (MLVA-ompA) and multi sequence typing (MST) retain stability in Chlamydia trachomatis. Frontiers in Cellular and Infection Microbiology, 2, (68) (doi:10.3389/fcimb.2012.00068).
Harris, Simon R., Clarke, I., Seth-Smith, Helena M.B., Solomon, Anthony W., Cutcliffe, Lesley T., Marsh, Peter, Skilton, Rachel J., Holland, Martin J., Mabey, David., Peeling, Rosanna W., Lewis, David A., Spratt, Brian G., Unemo, Magnus, Persson, Kenneth, Bjartling, Carina, Brunham, Robert, de Vries, Henry J.C., Morré, Servaas A., Speksnijder, Arjen, Bébéar, Cécile M., Clerc, Maïté, de Barbeyrac, Bertille, Parkhill, Julian and Thomson, Nicholas R. (2012) Whole-genome analysis of diverse Chlamydia trachomatis strains identifies phylogenetic relationships masked by current clinical typing. Nature Genetics, 44, (4), 413-419. (doi:10.1038/ng.2214). (PMID:22406642).
Baker, Estelle S., Luckner, Sylvia R., Krause, Kurt L., Lambden, Paul R., Clarke, Ian N. and Ward, Vernon K. (2012) Inherent structural disorder and dimerisation of murine norovirus NS1-2 protein. PLoS ONE, 7, (2), e30534-[13pp]. (doi:10.1371/journal.pone.0030534). (PMID:22347381).
Otto, Peter H., Clarke, Ian N., Lambden, Paul R., Salim, Omar, Reetz, Jochen and Liebler-Tenorio, Elisabeth M. (2011) Infection of calves with bovine norovirus Glll.1 strain jena virus: an experimental model to study the pathogenesis of norovirus infection. Journal of Virology, 85, (22), 12013-12021. (doi:10.1128/JVI.05342-11). (PMID:21880760).
Wang, Yibing, Kahane, Simona, Cutcliffe, Lesley T, Skilton, Rachel J, Lambden, Paul R and Clarke, Ian N (2011) Development of a transformation system for chlamydia trachomatis: restoration of glycogen biosynthesis by acquisition of a plasmid shuttle vector. PLoS pathogens, 7, (9), e1002258. (doi:10.1371/journal.ppat.1002258). (PMID:21966270).
Reed, David L., Currier, Russell W., Walton, Shelley F., Conrad, Melissa, Sullivan, Steven A., Carlton, Jane M., Read, Timothy D., Severini, Alberto, Tyler, Shaun, Eberle, R., Johnson, Welkin E., Silvestri, Guido, Clarke, Ian N., Lagergård, Teresa, Lukehart, Sheila A., Unemo, Magnus, Shafer, William M., Beasley, R. Palmer, Bergström, Tomas, Norberg, Peter, Davison, Andrew J., Sharp, Paul M., Hahn, Beatrice H and Blomberg, Jonas (2011) The evolution of infectious agents in relation to sex in animals and humans: brief discussions of some individual organisms. Annals of the New York Academy of Sciences, 1230, 74-107. (doi:10.1111/j.1749-6632.2011.06133.x). (PMID:21824167).
Turner, Katy, Clarke, Ian, Timpson, Nicholas and Horner, Patrick (2011) Chlamydia trachomatis in the age of the genome: application of molecular genotyping to improve our understanding of the immunopathogenesis of Chlamydia genital tract disease. Sexually Transmitted Diseases, 38, (6), 495-498. (doi:10.1097/OLQ.0b013e3182185744). (PMID:22256335).
Seth-Smith, H M B, Harris, S R, Rance, R, West, A , Severin, J, Ossewaarde, J, Cutcliffe, L.T., Skilton, R.J., Marsh, P., Parkhill, J, Clarke, Ian N. and Thomson, N (2011) Genome sequence of the zoonotic pathogen Chlamydophila psittaci. Journal of Bacteriology, 193, (5), 1282-1283. (doi:10.1128/JB.01435-10). (PMID:21183672).
Unemo, Magnus and Clarke, Ian (2011) The Swedish new variant of Chlamydia trachomatis. Current Opinion in Infectious Diseases, 24, (1), 62-69. (doi:10.1097/QCO.0b013e32834204d5). (PMID:21157332).
Unemo, Magnusa and Clarke, Ian N. (2011) The Swedish new variant of Chlamydia trachomatis. Current Opinion in Infectious Diseases, 24, (1), 62-69. (doi:10.1097/QCO.0b013e32834204d5). (PMID:21157332).
Wang, Yibing, Skilton, Rachel J., Cutcliffe, Lesley T., Andrews, Emma, Clarke, Ian N. and Marsh, Pete (2011) Evaluation of a high resolution genotyping method for Chlamydia trachomatis using routine clinical samples. PLoS ONE, 6, (2), e16971. (doi:10.1371/journal.pone.0016971). (PMID:21347295).
Hussey, Robert J., Coates, Leighton, Gill, Raj S., Erskine, Peter T., Coker, Shu-Fen, Mitchell, Ed, Cooper, Jonathan B., Wood, Steve, Broadbridge, Robert, Clarke, Ian N., Lambden, Paul R. and Shoolingin-Jordan, Peter M. (2010) A structural study of norovirus 3C protease specificity: Binding of a designed active site-directed peptide inhibitor. Biochemistry, 50, (2), 240-249. (doi:10.1021/bi1008497). (PMID:21128685).
Hussey, R.J., Coates, L., Gill, R.S., Wright, J. Neville, Sarwar, M., Coker, S., Erskine, P.T., Cooper, J.B., Wood, S.P., Clarke, I.N., Lambden, P.R., Broadbridge, R. and Shoolingin-Jordan, P.M. (2010) Crystallization and preliminary X-ray diffraction analysis of the protease from Southampton norovirus complexed with a Michael acceptor inhibitor. Acta Crystallographica. Section F, Structural Biology and Crystallization Communications, 66, (11), 1544-1548. (doi:10.1107/S1744309110039059). (PMID:21045318).
Unemo, Magnus, Seth-Smith, Helena M.B., Cutcliffe, Lesley T., Skilton, Rachel J., Barlow, David, Goulding, David, Persson, Kenneth, Harris, Simon, Kelly, Anne, Bjartling, Carina, Fredlund, Hans, Olcén, Per, Thomson, N icholas R. and Clarke, Ian N. (2010) The Swedish new variant of chlamydia trachomatis: genome sequence, morphology, cell tropism and phenotypic characterization. Microbiology, 156, (5), 1394-404. (doi:10.1099/mic.0.036830-0 ). (PMID:20093289).
Thomson, Nicholas R. and Clarke, Ian N. (2010) Chlamydia trachomatis: small genome, big challenges. Future Microbiology, 5, (4), 555-561. (doi:10.2217/fmb.10.31). (PMID:20353297).
Skilton, Rachel J., Cutcliffe, Lesley T., Barlow, David, Wang, Yibing, Salim, Omar, Lambden, Paul R. and Clarke, Ian N. (2009) Penicillin induced persistence in Chlamydia trachomatis: high quality time lapse video analysis of the developmental cycle. PloS one, 4, (11), e7723. (doi:10.1371/journal.pone.0007723). (PMID:19542292).
Seth-Smith, Helena M.B., Harris, Simon R., Persson, Kenneth, Marsh, Pete, Barron, Andrew, Bignell, Alexandra, Bjartling, Carina, Clark, Louise, Cutcliffe, Lesley T., Lambden, Paul R., Lennard, Nicola, Lockey, Sarah J., Quail, Michael A., Salim, Omar, Skilton, Rachel J., Wang, Yibing, Holland, Martin J., Parkhill, Julian, Thomson, Nicholas R. and Clarke, I.N. (2009) Co-evolution of genomes and plasmids within Chlamydia trachomatis and the emergence in Sweden of a new variant strain. BMC Genomics, 10, (239) (doi:10.1186/1471-2164-10-239). (PMID:19460133).
Salim, Omar, Skilton, Rachel J., Lambden, Paul R., Fane, Bentley A. and Clarke, Ian N. (2008) Behind the chlamydial cloak: the replication cycle of chlamydiaphage Chp2, revealed. Virology, 377, (2), 440-445. (doi:10.1016/j.virol.2008.05.001).
Salim, Omar, Clarke, Ian N. and Lambden, Paul R. (2008) Functional analysis of the 5' genomic sequence of a bovine norovirus. PLoS ONE, 3, (5), e2169-[8pp]. (doi:10.1371/journal.pone.0002169).
Thomson, Nicholas R., Holden, Matthew T.G., Carder, Caroline, Lennard, Nicola, Lockey, Sarah J., Marsh, Pete, Skipp, Paul, O'Connor, C. David, Goodhead, Ian, Norbertzcak, Halina, Harris, Barbara, Ormond, Doug, Rance, Rrichard, Quail, Michael A., Parkhill, Julian, Stephens, Richard S. and Clarke, Ian N. (2008) Chlamydia trachomatis: genome sequence analysis of lymphogranuloma venereum isolates. Genome Research, 18, (1), 161-171. (doi:10.1101/gr.7020108). (PMID:18032721).
Pelosi, E and Clarke, I (2008) Hepatitis E: a complex and global disease. Emerging Health Threats Journal, 1 (doi:10.3134/ehtj.08.008).
Oliver, S.L., Wood, E., Asobayire, E., Wathes, D.C., Brickell, J.S., Elschner, M., Otto, P., Lambden, P.R., Clarke, I.N. and Bridger, J.C. (2007) Serotype 1 and 2 bovine noroviruses are endemic in cattle in the United kingdom and Germany. Journal of Clinical Microbiology, 45, (9), 3050-3052. (doi:10.1128/JCM.02015-06).
Skilton, R.J., Cutcliffe, L.T., Pickett, M.A., Lambden, P.R., Fane, B.A. and Clarke, I.N. (2007) Intracellular parasitism of chlamydiae: specific infectivity of chlamydiaphage Chp2 in Chlamydophila abortus. Journal of Bacteriology, 189, (13), 4957-4959. (doi:10.1128/JB.00235-07).
Ward, V.K., McCormick, C.J., Clarke, I.N., Salim, O., Wobus, C.F., Thackray, L.B., Virgin, H.W. and Lambden, P.R. (2007) Recovery of infectious murine norovirus using pol II-driven expression of full-length cDNA. Proceedings of the National Academy of Sciences of the United States of America, 104, (26), 11050-11055. (doi:10.1073/pnas.0700336104).
Lambden, Paul R., Pickett, Mark A. and Clarke, Ian N. (2006) The effect of penicillin on Chlamydia trachomatis DNA replication. Microbiology, 152, (9), 2573-2578. (doi:10.1099/mic.0.29032-0).
Oliver, S.L., Batten, C.A., Deng, Y., Elschner, M., Otto, P., Charpilienne, A., Clarke, I.N., Bridger, J.C. and Lambden, P.R. (2006) Genotype 1 and Genotype 2 Bovine Noroviruses Are Antigenically Distinct but Share a Cross-Reactive Epitope with Human Noroviruses. Journal of Clinical Microbiology, 44, (3), 992-998. (doi:10.1128/JCM.44.3.992-998.2006).
Batten, Carrie A., Clarke, Ian N., Kempster, Sarah L., Oliver, Stefan L., Bridger, Janice C. and Lambden, Paul R. (2006) Characterization of a cross-reactive linear epitope in human genogroup I and bovine genogroup III norovirus capsid proteins. Virology, 356, (1-2), 179-187. (doi:10.1016/j.virol.2006.07.034). (PMID:16934306).
Skipp, Paul, Robinson, Jo, O'Connor, C. David and Clarke, Ian N. (2005) Shotgun proteomic analysis of Chlamydia trachomatis. Proteomics, 5, (6), 1558-1573. (doi:10.1002/pmic.200401044).
Clarke, Ian N., Cutcliffe, Leslie T., Everson, J. Sylvia, Garner, Sarah A., Lambden, Paul R., Pead, Paddy J., Pickett, Mark A., Brentlinger, Karie L. and Fane, Bentley A. (2004) Chlamydiaphage Chp2, a skeleton in the φX174 closet: scaffolding protein and procapsid identification. Journal of Bacteriology, 186, (22), 7571-7574. (doi:10.1128/JB.186.22.7571-7574.2004).
Garner, Sarah A., Everson, J. Sylvia, Lambden, Paul R., Fane, Bentley A. and Clarke, Ian N. (2004) Isolation, molecular characterisation and genome sequence of a bacteriophage (Chp3) from Chlamydophila pecorum. Virus Genes, 28, (2), 207-214. (doi:10.1023/B:VIRU.0000016860.53035.f3).
Froggatt, Pippa C., Vipond, I. Barry, Ashley, Charles R., Lambden, Paul R., Clarke, Ian N. and Caul, E. Owen (2004) Surveillance of norovirus infection in a study of sporadic childhood gastroenteritis in South West England and South Wales, during one winter season (1999-2000). Journal of Medical Virology, 72, (2), 307-311. ( doi:10.1002/jmv.10569).
Vipond, I.B., Caul, E.O., Hirst, D., Carmen, B., Curry, A., Lopman, B.A., Pead, P., Pickett, M.A., Lambden, P.R. and Clarke, I.N. (2004) National epidemic of Lordsdale Norovirus in the UK. Journal Of Clinical Virology, 30, (3), 243-247. (doi:10.1016/j.jcv.2003.11.011).
Everson, J.S., Garner, S.A., Lambden, P.R., Fane, B.A. and Clarke, I.N. (2003) Host range of chlamydiaphages fCPAR39 and Chp3. Journal of Bacteriology, 185, (21), 6490-6492. (doi:10.1128/JB.185.21.6490-6492.2003).
Deng, Y., Batten, C.A., Liu, B.L., Lambden, P.R., Elschner, M., Gunther, H., Otto, P., Schnurch, P., Eichhorn, W., Herbst, W. and Clarke, I.N. (2003) Studies of epidemiology and seroprevalence of bovine noroviruses in Germany. Journal of Clinical Microbiology, 41, (6), 2300-2305. (doi:10.1128/JCM.41.6.2300-2305.2003).
Everson, J.S., Garner, S.A., Fane, B., Liu, B.L., Lambden, P.R. and Clarke, I.N. (2002) Biological properties and cell tropism of Chp2, a bacteriophage of the obligate intracellular bacterium Chlamydophila abortus. Journal of Bacteriology, 184, (10), 2748-2754. (doi:10.1128/JB.184.10.2748-2754.2002).
Robinson, Samantha, Clarke, Ian N., Vipond, I. Barry, Caul, E. Owen and Lambden, Paul R. (2002) Epidemiology of human sapporo-like caliciviruses in the South West of England: molecular characterisation of a genetically distinct isolate. Journal of Medical Virology, 67, (2), 282-288. (doi:10.1002/jmv.2219).
Chen, Zhilin, Lambden, Paul R., Lau, Jeshen, Caul, E. Owen and Clarke, Ian N. (2002) Human group C rotavirus: completion of the genome sequence and gene coding assignments of a non-cultivatable rotavirus. Virus Research, 83, (1-2), 179-187. (doi:10.1016/S0168-1702(01)00442-7).
Clarke, Ian N. and Lambden, Paul R. (2001) The molecular biology of human caliciviruses. Gastroenteritis Viruses. Novartis Foundation Symposium, 238, 191-196. (doi:10.1002/0470846534.ch11).
Schachter, J., Stephens, R.S., Timms, P., Kuo, C., Bavoil, P.M., Birkelund, S., Boman, J., Caldwell, H., Campbell, L.A., Chemesky, M., Christiansen, G, Clarke, I.N., Gaydos, C., Grayston, J.T., Hackstadt, T., Hsia, R., Kaltenboeck, B., Leinonnen, M., Ojcius, D., McClarty, G., Orfila, J., Peeling, R., Puolakkainen, M., Quinn, T.C., Rank, R.G., Raulston, J., Ridgeway, G.L., Saikku, P., Stamm, W.E., Taylor-Robinson, D., Wang, S.P. and Wyrick, P.B. (2001) Radical changes to chlamydial taxonomy are not necessary just yet (letter and reply). International Journal of Systematic and Evolutionary Microbiology, 51, (1), 249-253.
Chadwick, P. R., Beards, G., Brown, D., Caul, E. O., Cheesbrough, J., Clarke, I. N., Curry, A., O'Brien, S., Quigley, K., Sellwood, J. and Westmoreland, D. (2000) Management of hospital outbreaks of gastro-enteritis due to small round structured viruses. Journal of Hospital Infection, 45, (1), 1-10. (PMID:10833336).
Liu, B.L., Everson, J., Fane, B., Giannikopoulou, P., Vretou, E., Lambden, P.R. and Clarke, I.N. (2000) Molecular characterization of a bacteriophage (Chp2) from chlamydia psittaci. Journal of Virology, 74, (8), 3464-3469. (PMID:8375644).
Vipond, I. Barry, Pelosi, Emmanuela, Williams, Judith, Ashley, Charles R., Lambden, Paul R., Clarke, Ian N. and Caul, E. Owen (2000) A diagnostic EIA for detection of the prevalent SRSV strain in United Kingdom outbreaks of gastroenteritis. Journal of Medical Virology, 61, (1), 132-137. (doi:10.1002/(SICI)1096-9071(200005)61:1<132::AID-JMV21>3.0.CO;2-8). (PMID:10745245).
James, Vivenna L.A., Lambden, Paul R., Deng, Yu, Caul, E. Owen and Clarke, Ian N. (1999) Molecular characterization of human group C rotavirus genes 6, 7 and 9. Journal of General Virology, 80, (12), 3181-3187. (PMID:10567650).
Pelosi, Emanuela, Lambden, Paul R., Caul, E. Owen, Liu, Binlei, Dingle, Kate, Deng, Yu and Clarke, Ian N. (1999) The seroepidemiology of genogroup 1 and genogroup 2 Norwalk-like viruses in Italy. Journal of Medical Virology, 58, (1), 93-99. (doi:10.1002/(SICI)1096-9071(199905)58:1<93::AID-JMV15>3.0.CO;2-P). (PMID:10223553).
Liu, B.L., Viljoen, GJ, Clarke, I.N. and Lambden, P.R. (1999) Identification of further proteolytic cleavage sites in the Southampton calicivirus polyprotein by expression of the viral protease in E. coli. Journal of General Virology, 80, (2), 291-296. (PMID:10073687).
Liu, B.L., Lambden, P.R., Günther, H., Otto, P., Elschner, M. and Clarke, I.N. (1999) Molecular characterization of a bovine enteric calicivirus: relationship to the Norwalk-like viruses. Journal of Virology, 73, (1), 819-825. (PMID:8380940).
James, V.L.A., Lambden, P.R., Caul, E.O. and Clarke, I.N. (1998) Enzyme-linked immunosorbent assay based on recombinant human group C rotavirus inner capsid protein (VP6) To detect human group C rotaviruses in fecal samples. Journal of Clinical Microbiology, 36, (11), 3178-3181. (PMID:9431910).
Thomas, N.S., Lusher, M., Storey, C. and Clarke, IN. (1997) Plasmid diversity in chlamydia. Microbiology, 143, (6), 1847-1854. (doi:10.1099/00221287-143-6-1847). (PMID:9202459).
Noel, J.S., Liu, B.L., Humphrey, C.D., Rodriguez, E.M., Lambden, P.R., Clarke, I.N., Dwyer, D.M., Ando, T., Glass, R.I. and Monroe, S.S. (1997) Parkville virus: a novel genetic variant of human calicivirus in the Sapporo virus clade, associated with an outbreak of gastroenteritis in adults. Journal of Medical Virology, 52, (2), 173-178. (doi:10.1002/(SICI)1096-9071(199706)52:2<173::AID-JMV10>3.0.CO;2-M). (PMID:9179765).
Green, Steve M., Lambden, Paul R., Caul, E. Owen and Clarke, Ian N. (1997) Capsid sequence diversity in small round structured viruses from recent UK outbreaks of gastroenteritis. Journal of Medical Virology, 52, (1), 14-19. (doi:10.1002/(SICI)1096-9071(199705)52:1<14::AID-JMV3>3.0.CO;2-U). (PMID:9131452).
James, V.L.A., Lambden, P.R., Caul, E.O., Cooke, S.J. and Clarke, I.N. (1997) Seroepidemiology of human group C rotavirus in the UK. Journal of Medical Virology, 52, (1), 86-91. (doi:10.1002/(SICI)1096-9071(199705)52:1<86::AID-JMV14>3.0.CO;2-Z). (PMID:9131463).
Johnson, Nicholas, Pickett, Mark A., Watt, Peter J., Clarke, Ian N. and Heckels, John E. (1997) Construction of an epitope vector utilising the diphtheria toxin B-subunit. FEMS Microbiology Letters, 146, (1), 91-96. (doi:10.1016/S0378-1097(96)00459-4). (PMID:8997711).
Liu, B, Clarke, Ian N., Caul, E and Lambden, Paul R. (1997) The genomic 5' terminus of Manchester calicivirus. Virus Genes, 15, (1), 25-28. (doi:10.1023/A:1007946628253). (PMID:9354265).
Ward, Stephen J., Scopes, Deborah, Christodoulides, Myron, Clarke, Ian N. and Heckels, John E. (1996) Expression of Neisseria meningitidis class 1 porin as a fusion protein in Escherichia coli: the influence of liposomes and adjuvants on the production of a bactericidal immune response. Microbial Pathogenesis, 21, (6), 499-512. (doi:10.1006/mpat.1996.0079). (PMID:8971689).
Liu, B., Clarke, I.N. and Lambden, P.R. (1996) Polyprotein processing in Southampton virus: identification of 3C-like protease cleavage sites by in vitro mutagenesis. Journal of Virology, 70, (4), 2605-2610. (PMID:8642693).
Samarbaf-Zadeh, Ali Reza, Lambden, Paul R., Green, Steve, Deng, Yu, Caul, E. Owen and Clarke, Ian N. (1996) The VP3 gene of human group C rotavirus. Virus Genes, 13, (2), 169-173. (doi:10.1007/BF00568909). (PMID:8972570).
Watson, M.W., Clarke, I.N., Everson, J.S. and Lambden, P.R. (1995) The CrP operon of Chlamydia psittaci and Chlamydia pneumoniae. Microbiology, 141, (10), 2489-2497. (doi:10.1099/13500872-141-10-2489). (PMID:7582008).
Green, Steve M., Lambden, Paul R., Deng, Yu, Clarke, Ian N., Lowes, J. Andrew, Lineham, Sarah, Bushell, Julie, Rogers, John, Caul, E. Owen and Ashley, Charles R. (1995) Polymerase chain reaction detection of small round-structured viruses from two related hospital outbreaks of gastroenteritis using inosine-containing primers. Journal of Medical Virology, 45, (2), 197-202. (doi:10.1002/jmv.1890450215). (PMID:7775939).
Lambden, P.R., Everson, J.S., Ward, M.E. and Clarke, I.N. (1990) Sulfur-rich proteins of Chlamydia trachomatis: developmentally regulated transcription of polycistronic mRNA from tandem promoters. Gene, 87, (1), 105-112. (doi:10.1016/0378-1119(90)90500-Q). (PMID:2332164).
Barlow, A.K., Heckels, J.E. and Clarke, I.N. (1988) Molecular cloning and expression of Neisseria meningitidis class 1 outer-membrane protein in Escherichia coli K-12. Journal of Medical Microbiology, 55, (11), 2734-2740. (PMID:3117690).
Hatt, Christopher, Ward, Michael E. and Clarke, Ian N. (1988) Analysis of the entire nucleotide sequence of the cryptic plasmid of Chlamydia trachomatis serovar L1. Evidence for involvement in DNA replication. Nucleic Acids Research, 16, (9), 4053-4067. (doi:10.1093/nar/16.9.4053). (PMID:6307876).
Clarke, I. N. and McCrae, M. A. (1981) A sensitive method for the production of diagnostic fingerprints of the genome segments of field isolates of rotavirus. Journal of Virological Methods, 3, (5), 261-9. (PMID:6277973).
Clarke, I. N. and McCrae, M. A. (1981) A rapid and sensitive method for analysing the genome profiles of field isolates of rotavirus. Journal of Virological Methods, 2, (4), 203-209. (PMID:6262345).

Book Section

Clarke, I.N., Estes, M.K., Green, K.Y., Hansman, G.S., Knowles, N.J., Koopmans, M.K., Matson, D.O., Meyers, G., Neill, J.D., Radford , A, Smith, A.W, Studdert, M.J., Vinje, J and Thiel, H-J (2012) Caliciviridae. In, King, Andrew M., Adams, Michael J., Carstens, Eric B. and Lefkowitz, Elliot J. (eds.) Virus Taxonomy: Ninth Report of the International Committee on Taxonomy of Viruses. Oxford, GB, Elsevier, 977-986.
Clarke, I.N. (2011) Evolution of chlamydia trachomatis. In, Nahmias, Andre, Danielsson, Dan and Beckman Nahmais, Susa (eds.) The Evolution of Infectious Agents in Relation to Sex. Chichester, GB, Wiley, E11-E18. (Annals of the New York Academy of Sciences, 1230 1). (doi:10.1111/j.1749-6632.2011.06194.x).
Clarke, Ian N. (2010) Chlamydial transformation: facing up to the challenge. In, Chlamydial Infections. Twelfth International Symposium on Human Chlamydial Infections San Francisco, US, Twelfth International Symposium on Human Chlamydial Infections, 295-304.
Clarke, Ian N. and Lambden, Paul R. (1997) Viral zoonoses and food of animal origin: caliciviruses and human disease. In, Kaaden, O-.R., Czerny, C.P. and Eichhorn, W. (eds.) Viral Zoonoses and Food of Animal Origin: A RE-Evaluation of Possible Hazards for Human Health. Berlin, DE, Springer Verlag, 141-152. (Archives of Virology. Supplement, 13).
 

Research

Research Interests

Chlamydial Research Group

The ability to diagnose accurately and rapidly treat Chlamydia infections is necessary to reduce the burden of this disease. We are involved in a major programme to define the nature and extent of diversity in C.trachomatis with the overall research goal of understanding the role of C.trachomatis in complications of infection such as infertility and pelvic inflammatory disease. This work is multidisciplinary and involves many international partners and has meant tracking emerging infections such as the Swedish new variant. Our genomics programme is supported by the Wellcome Trust and is performed in partnership with the Sanger Centre. We also have funding from the HPA for investigating the epidemiology of C.trachomatis in the UK and work in close partnership with the Southampton HPA laboratory. The Chlamydia research group is also a joint partner with the Department of Chemistry in a work programme funded by the Technology Strategy Board, together with industrial partners to develop a point of care test for C.trachomatis. Long term basic cell and molecular biology research is also funded by the Wellcome Trust to develop chlamydial genetics and we have research partners in both Israel Dr. Simona Kahane -(Ben Gurion University) and USA (Prof. Bentley Fane - BIO5 University of Arizona).

Norovirus Research Group

Norovirus research in Southampton has been established for over 20 years and is supported by a Wellcome Trust programme grant to Professor Clarke and Dr. Paul Lambden. Work is focused on the ‘Southampton virus’ one of the prototype human noroviruses and characterization of this virus represented the culmination of many years work to pinpoint the causative viral agent of epidemic non bacterial gastroenteritis. This advance allowed the characterisation of other noroviruses leading to the identification of the most prevalent norovirus in the world, the so called GII.4 viruses. The prototype of these viruses ‘Lordsdale virus’ came from a patient at the Southampton General Hospital. The long term research goal of the team is to develop a cell culture system for the noroviruses using Southampton and Lordsdale virus. We are also engaged in a programme to understand the basic biology of noroviruses using the murine virus as a model system, this work is performed in collaboration with Professor Vernon Ward (University of Otago) and makes use of the first reverse genetics system for noroviruses developed jointly between Otago and Southampton. In collaboration with Professor Jon Cooper (UCL) we are determining the structure of human norovirus proteins with the aim of developing novel antiviral agents. We also have a long term collaboration with Dr. Peter Otto at the Friederich-Loeffler Institue in Jena to investigate the pathogenesis of norovirus infection. Noroviruses are a major source of environmental contamination and we are funded by the food standards agency to develop highly sensitive diagnostics for noroviruses.

Academic unit:  Clinical and Experimental Sciences

Responsibilities

Postgraduate student supervision

(21 completed PhDs)

Current

Simone Hadley PhD
Clare Labiran PhD

National and International responsibilities

Chair, Calicivirus study group, International Committee on the Taxonomy of Viruses
Member scientific committee, European society for Chlamydia research

Teaching responsibilities

Personal tutor

BM5. Delivers lectures and small group teaching in years 1 and 2 that introduce virology and microbiology and also specialist lectures in enteric virology, hepato-virology, respiratory virology and neurovirology.

Contact

Professor Ian Clarke
Phone: (023) 8079 6975
Email: inc@soton.ac.uk

Room Number: SGH/LC69/MP814