I joined the University of Leicester in 2008 firstly as a Research Fellow and later as a Lecturer in microbiology. Previously I worked as a research fellow at the Swiss Federal Institute of Technology developing methods to detect protein-protein interaction to understand M. tuberculosis drug targets and as a post doctoral researcher at the University of Cambridge using directed evolution approaches to study enzyme specificity in antibiotic biosynthesis.
I am interested in bacterial physiology at the molecular level with a particular focus on human pathogens like Mycobacterium tuberculosis and on industrial strains. Recent achievements of my group include discovering a protein kinase signalling pathway that allows M. tuberculosis to regulate central metabolism by sensing amino acids in its surroundings.
(0) A Virulence Associated Siderophore Importer Reduces Antimicrobial Susceptibility of Klebsiella pneumoniae
Robeena Farzand, Kumar Rajakumar, Michael R. Barer, Primrose P. E. Freestone, Galina V. Mukamolova, Marco R. Oggioni, Helen M. O'Hare
Front Microbiol. 2021; 12: 607512.
Alqaseer K, Turapov O, Barthe P, Jagatia H, De Visch A, Roumestand C, Wegrzyn M, Bartek IL, Voskuill M I, O'Hare HM, Ajuh P, Bottrill AR, Witney AA, Cohen-Gonsaud M, Waddell SJ, Mukamolova GV (2019) Protein kinase B controls Mycobacterium tuberculosis growth via phosphorylation of the transcriptional regulator Lsr2 at threonine 112. Molecular Microbiology doi: 10.1111/mmi.14398
Farzand R, Rajakumar, K, Zumudio R, Oggioni MR, Barer MR, O'Hare HM (2019) ICEKp2: description of an integrative and conjugative element in Klebsiella pneumoniae co-occurring and interacting with ICEKp1. Scientific Reports 9:13892
Bhattacharyya N, Nkumama IN, Newland-Smith Z, Lin LY, Yin W, Cullen RE, Griffiths JS, Jarvis AR, Price MJ, Chong PY, Wallis R, O'Hare HM (2018) An aspartate-specific solute-binding protein regulates protein kinase G activity to control glutamate metabolism in Mycobacteria. mBio 9(4): mBio00931-18.
Rieck B, Degiacomi G, Zimmermann M, Cascioferro A, Boldrin F, Lazar-Adler NR, Bottrill AR, le Chevalier F, Frigui W, Bellinzoni M, Lisa MN, Alzari PM, Nguyen L, Brosch R, Sauer U, Manganelli R, O'Hare HM (2017) PknG senses amino acid availability to control metabolism and virulence of Mycobacterium tuberculosis. PLoS Pathog 13(5): e1006399
Ventura M, Rieck B, Boldrin F, Degiacomi G, Bellinzoni M, Barilone N, Alzaidi F, Alzari PM, Manganelli R, O'Hare HM (2013) GarA is an essential regulator of metabolism in Mycobacterium tuberculosis. Mol Microbiol. 90(2):356-66.
Bortoluzzi A, Muskett FW, Waters LC, Addis, PW, Rieck B, Munder R, Schleier S, Forti F, Ghisotti D, Carr MD, O'Hare HM (2013) Structural characterization of Mycobacterium tuberculosis RNA polymerase binding protein A (RbpA) and its interactions with sigma factors. Journal of Biological Chemistry 288 (20) 14438-50.
O'Hare HM, Duran R, Cervenansky C, Bellinzoni M, Wehenkel A, Pritsch O, Obal G, Baumgartner J, Vialaret J, Johnsson K, Alzari PM (2008) Regulation of glutamate metabolism by protein kinase G in mycobacteria. Mol Microbiol. 70 (6) 1408-1423.
Sacco E, Suarez A, O'Hare HM, Carroll P, Eynard N, Jones TA, Parish T, Daffe M, Backbro K, Quemard A (2007) The missing piece of the type II Fatty Acid Synthase system from Mycobacterium tuberculosis. PNAS. 104, 14628-14633.