Elissa A. Hallem, Ph.D.


Associate Professor, Brain Research Institute

Microbiology, Immunology & Molecular Genetics

Member, Immunity, Microbes & Molecular Pathogenesis GPB Home Area

Neuroscience GPB Home Area

Contact Information

Office Phone Number: (310) 825-1778

Office Address:

Los Angeles, CA 90095


A selected list of publications:

Bryant AS, Ruiz F, Gang SS, Castelletto ML, Lopez JB, Hallem EA   A critical role for thermosensation in host seeking by skin-penetrating nematodes Curr Biol, 2018; 28: 2338–2347.
Banerjee N, Hallem E   Sexual Dimorphisms: How sex-shared neurons generate sex-specific behaviors Curr Biol, 2018; 28: R254-R256.
Gang SS, Castelletto ML, Bryant AS, Yang E, Mancuso N, Lopez JB, Pellegrini M, Hallem EA   Targeted mutagenesis in a human-parasitic nematode PLoS Pathog, 2017; 13: e1006675.
Guillermin ML, Carrillo MA, Hallem EA   A single set of interneurons drives opposite behaviors in C. elegans Curr Biol, 2017; 27: 2630-2639.
Ruiz F, Castelletto ML, Gang SS, Hallem EA   Experience-dependent olfactory behaviors of the parasitic nematode Heligmosomoides polygyrus PLoS Pathog, 2017; 13: e1006709.
Cevallos JA, Okubo RP, Perlman SJ, and Hallem EA   Olfactory preferences of the parasitic nematode Howardula aoronymphium and its insect host Drosophila falleni J Chem Ecol, 2017; 43: 362-373.
Park HB, Sampathkumar P, Perez CE, Lee J, Tran J, Bonanno JB, Hallem EA, Almo SC, and Crawford JM   Stilbene epoxidation and detoxification in a Photorhabdus luminescens-nematode symbiosis J Biol Chem, 2017; 292: 6680-6694.
Gang SS and Hallem EA   Mechanisms of host seeking by parasitic nematodes Mol Biochem Parasitol, 2016; 208: 23-32.
Rengarajan S and Hallem EA   Olfactory circuits and behaviors of nematodes Curr Opin Neurobiol, 2016; 41: 136-148.
Lee J, Dillman AR, Hallem EA   Temperature-dependent changes in the host-seeking behaviors of parasitic nematodes BMC Biol, 2016; 14: 36.
Carrillo MA and Hallem EA   Gas sensing in nematodes Mol Neurobiol, 2015; 51: 919-931.
Pena JM, Carrillo MA, and Hallem EA   Variation in the susceptibility of Drosophila to different entomopathogenic nematodes Infect Immun, 2015; 83: 1130-8.
Castelletto ML, Gang SS, Okubo RP, Tselikova AA, Nolan TJ, Platzer EG, Lok JB, and Hallem EA   Diverse host-seeking behaviors of skin-penetrating nematodes PLoS Pathog, 2014; 10: e1004305.
Carrillo MA, Guillermin ML, Rengarajan S, Okubo RP, and Hallem EA   O2-sensing neurons control CO2 response in C. elegans J Neurosci, 2013; 33: 9675-83.
Dillman AR, Guillermin ML, Lee J, Kim B, Sternberg PW, and Hallem EA   Olfaction shapes host-parasite interactions in parasitic nematodes Proc Natl Acad Sci USA, 2012; 109: E2324-E2333.
Chaisson KE and Hallem EA   Chemosensory behaviors of parasites Trends Parasitol, 2012; 28: 427-436.
Hallem EA, Dillman AR, Hong AV, Zhang Y, Yano JM, DeMarco SF, and Sternberg PW   A sensory code for host seeking in parasitic nematodes Curr Biol, 2011; 21: 377-83.
Guillermin ML, Castelletto ML, and Hallem EA   Differentiation of carbon dioxide-sensing neurons in Caenorhabditis elegans requires the ETS-5 transcription factor Genetics, 2011; 189: 1327-39.
Hallem EA, Spencer WC, McWhirter RD, Zeller G, Henz SR, Ratsch G, Miller DM, Horvitz HR, Sternberg PW, and Ringstad N   Receptor-type guanylate cyclase is required for carbon dioxide sensation by Caenorhabditis elegans Proc Natl Acad Sci USA, 2010; 108: 254-259.
Hallem EA and Sternberg PW   Acute carbon dioxide avoidance in Caenorhabditis elegans Proc Natl Acad Sci USA, 2008; 105: 8038-43.
Hallem EA, Rengarajan M, Ciche TA, Sternberg PW   Nematodes, bacteria, and flies: a tripartite model for nematode parasitism Curr Biol, 2007; 17: 898-904.
Hallem EA and Carlson JR   Coding of odors by a receptor repertoire Cell, 2006; 125: 143-60.
Hallem EA, Dahanukar A, and Carlson JR   Insect odor and taste receptors Ann Rev Entomol, 2006; 51: 113-35.
Dahanukar A, Hallem EA, and Carlson JR   Insect chemoreception Curr Opin Neurobiol, 2005; 15: 423-30.
Hallem EA, Fox AN, Zwiebel LJ, and Carlson JR   Olfaction: mosquito receptor for human-sweat odorant Nature, 2004; 427: 212-3.
Hallem EA, Ho MG, and Carlson JR   The molecular basis of odor coding in the Drosophila antenna Cell, 2004; 117: 965-79.
Hallem EA and Carlson JR   The odor coding system of Drosophila Trends Genet, 2004; 20: 453-9.
Hallem EA and Carlson JR   The spatial code for odors is changed by conditioning Neuron, 2004; 42: 359-61.
Shirke S, Faber SC, Hallem E, Makarenkova HP, Robinson ML, Overbeek PA, and Lang RA   Misexpression of IGF-I in the mouse lens expands the transitional zone and perturbs lens polarization Mech Dev, 2001; 101: 167-174.