If you don’t have journal access, I am happy to email you a paper!

Poudel A, Pokhrel A, Oludiran A, Coronado E , Alleyne K, Gilfus M, Gurung R, Adhikari S, Purcell E Unique features of alarmone metabolism in Clostridioides difficile. J. Bacteriology, 2022 Mar 7;e0057521. link

Erin B. Purcell. Second messenger signaling in Clostridioides difficile. Current Opinions in Microbiology. 2022 Feb;65:138-144. link

Poudel A, Oludiran A, Sözin EB, Casciola M, Purcell EB, Muratori CM. Growth in a biofilm sensitizes Cutibacterium acnes to nanosecond pulsed electric fields. Bioelectrochemistry 2021 140:107797. 2021. link

Pokhrel A, Poudel A, Castro KB, Celestine MJ, Oludiran A, Rinehold AJ, Resek AM, Mhanna MA, Purcell EB. The (p)ppGpp synthetase RSH mediates stationary-phase onset and antibiotic stress survival in Clostridioides difficile. J. Bacteriology, 202(19):e00377-20. 2020. link

Oludiran A, Courson DS, Stuart MD, Radwan AR, Poutsma JC, Cotton ML, Purcell EB. How oxygen availability affects the antimicrobial efficacy of host defense peptides: lessons learned from studying the copper-binding peptides piscidins 1 and 3. J. Mol. Sci., 20(21), 5289. 2019. link

Courson DS, Pokhrel A, Scott C, Madrill M, Rinehold AJ, Tamayo R, Cheney RE, Purcell EB. Single cell analysis of nutrient regulation of Clostridioides (Clostridium) difficile Anaerobe 59:205-211. 2019. link

Pokhrel A, Poudel A, Purcell EB. A purification and in vitro activity assay for a (p)ppGpp synthetase from Clostridium difficile. Journal of Visualized Experiments (141), e58547. 2018. link

A Nutrient-Regulated Cyclic Diguanylate Phosphodiesterase Controls Clostridium difficile Biofilm and Toxin Production during Stationary Phase. Purcell EB, McKee RW, Courson DS, Garrett EM, McBride SM, Cheney RE, Tamayo R. Infection and Immunity. 2017. link

Cyclic diguanylate signaling in Gram-positive bacteria. Purcell EB, Tamayo R. FEMS Microbiology Review. June 2016. link

Regulation of Type IV Pili contributes to surface behaviors of historical and epidemic strains of Clostridium difficile. Purcell EB, McKee RW, Bordeleau E, Burrus V, Tamayo R. Journal of Bacteriology. 198(3):565-77. 2015. link

Cyclic di-GMP riboswitch-regulated type IV pili contribute to aggregation of Clostridium difficile.  Bordeleau E, Purcell EB, Lafontaine DA, Fortier LC, Tamayo R, Burrus V. Journal of Bacteriology. 197(5):829-32. 2015. link

The second messenger cyclic di-GMP regulates Clostridium difficile toxin production by controlling expression of sigD. McKee RW, Mangalea MR, Purcell EB, Borchardt EK, Tamayo R. Journal of Bacteriology. 195(22):5174-85. 2013. link

Identification and characterization of cyclic nucleotide phosphodiesterases. Purcell EB, Tamayo R. Methods in Molecular Biology. 1016:235-43. 2013. link

Cyclic diguanylate inversely regulates motility and aggregation in Clostridium difficile. Purcell EB, McKee RW, McBride SM, Waters CM, Tamayo R. Journal of Bacteriology. 194(13):3307-16. 2013. link

An analysis of the solution structure and signaling mechanism of LovK, a sensor histidine kinase integrating light and redox signals. Purcell EB, Claudia CA, Palfey BA, Crosson S. Biochemistry. 49(31):6761-70. 2010. link

Electronic and protein structural dynamics of a photosensory histidine kinase. Alexandre MT, Purcell EB, van Grondelle R, Robert B, Kennis JT, Crosson S. Biochemistry. 49(23):4752-9.2010. link

Photoregulation in prokaryotes. Purcell EB, Crosson S. Current Opinion in Microbiology. 11(2):168-78. 2008. link

Two-component signaling systems and cell cycle control in Caulobacter crescentus. Purcell EB, Boutte CC, Crosson S. Advances in Experimental Medicine and Biology. 631:122-30. 2008. link

A photosensory two-component system regulates bacterial cell attachment. Purcell EB, Siegal-Gaskins D, Rawling DC, Fiebig A, Crosson S. Proceedings of the National Academy of Sciences of the United States of America. 104(46):18241-6. 2007. link

Structure of the redox sensor domain of Azotobacter vinelandii NifL at atomic resolution: signaling, dimerization, and mechanism. Key J, Hefti M, Purcell EB, Moffat K. Biochemistry. 46(12)3614-23. 2007. link

Purification and initial characterization of the putative blue light-regulated phosphodiesterase from Escherichia coli. Rajagopal S, Key JM, Purcell EB, Boerema DJ, Moffat K. Photochemistry and Photobiology. 80(3):542-7. 2004. link