https://www.ehrtschnappingerlabs.org/home-old daily 0.75 2016-09-02 https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1556132431598-VQE7RQIXX5J6P1PVSZ1T/DSC_7165+%281%29.jpg Home https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1556132565483-CMQP14FTRTRJ9LYT04MA/DSC_6536+%281%29.jpg Home https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1556132615440-II9QZOSCO6L8T8XLGHSG/helene+bacteria.png Home https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1556133140292-ILR3EL76T741WBZHTUGM/F4.large.jpg Home https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1556133296251-O7HP4H9JFHNEV40EGCT0/DSC_6615.jpg Home https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1556133685355-LVO41I3TBOGXXAUMTQCQ/25182092_10155744844265569_2309760408007045960_o.jpg Home https://www.ehrtschnappingerlabs.org/collaborators daily 0.75 2026-01-30 https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1558580730989-X1U06F9HHCHHRYZFCIJM/Map.png Tri-I TB Research Group https://www.ehrtschnappingerlabs.org/connect daily 0.75 2024-06-11 https://www.ehrtschnappingerlabs.org/news-fun daily 0.75 2021-07-27 https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1556134076390-KVLBL84M4L9SADXZDOTI/Trivia+night+2019_closeup.jpg News https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1627409345060-WET27CVCKI2DCCGSVRQT/IMG_4456.jpeg News https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1627409344805-FYSPUFSX5JI3OVKKPTAE/IMG_4457.jpeg News https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1627409444713-QUULD7SVUFRO197RMPPB/PXL_20210723_140134392.jpg News https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1627409708447-84KSYU5H931ADVUHOCE6/IMG_4438.jpeg News - Covid restrictions lifted for vaccinated individuals In reserach spaces. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1627410073510-9Z94AGYAWUNTQKW5AYMA/IMG_4267.jpeg News https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1627409790010-ZF6QMUFH5YJ2RGNJ4UJQ/IMG_4256.jpeg News https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1627409797609-PU82JQ9AYMC713XFRDRA/IMG_4265.jpeg News https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1627410073614-KXXQ3FXWI1Y2HAO1EQWQ/IMG_4266.jpeg News https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1602785225592-3PJPE9PKANMC4VHFJHVJ/farewellsophie.jpg News Farewell Sophie (and Charlotte))! https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1602784283245-1VSHBJN53LMFAD8KZX95/farewellAnishaheadshot.jpg News First in-person farewell for Anisha after pandemic (after two virtual farewells for Hongwei and Claire. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1602785182474-VVP8CPWBKUT05UIF35D3/IMG_20200724_164847_1.jpg News Paint Night. First in-person hangout after lockdown! https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1602785167378-06AT7Q3T5XL9YEHNYC7T/image-asset.jpeg News Dr. Meredith defended her thesis https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1602785151256-ENR7KTHH8N9OXD1XYKG6/IMG_20200221_183711_1.jpg News Sophie’s baby shower! https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1581966964939-JC2MRFSB6ZZM1VXOGLLX/IMG_20200121_151814.jpg News Sabine Ehrt named the Chair of the Immunology and Microbial Pathogenesis program. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1581966712947-RDYNJSX3ZEA63874GTJS/IMG_20200124_165002.jpg News Jia’s Farewell Party https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1581966545806-ZO053X0HX2S2VP2LGG8K/HSB_4116.JPG News Annual Holiday Party of 2019 https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1581966516010-Q6N5TRVMQEQ20T9RFUW1/image-asset.jpeg News Immunology and Microbial Pathogenesis program retreat at the Mohonk Mountain House. We are joined by people from the Nathan Lab. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1563896108401-ZY0F8OGORZMBOO9NQOZ7/IMG_5637.JPG News Last week we welcomed our newest students, Thais Klevorn and Frances Marks, with a trip to The Sweet Shop (best ice cream in the neighborhood)! Here’s hoping the rest of their PhD training is just as sweet. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1560810777140-HZ6L79CYTCU01FW4P0WG/IMG_5262_01.jpg News Lunch with Rock Lab at Rockefeller University https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1560810335541-HBG2DK01VSDUK94F10FI/IMG_20190521_131657.jpg News The RHEHRTUNEROCKRUBETTINGER Retreat @Interlaken Inn A day long talks-packed meeting with the labs of Eric Rubin, Sarah Fortune, Chris Sassetti, Jeremy Rock, Kyu Rhee and Chris Sassetti at picturesque Interlaken Inn. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1560809371259-GQ0HQEGCXCFAPTRLFDYZ/IMG_4803.jpg News Newly minted Dr. Wang! In March 2019, student Ruojun Wang successfully defended her thesis work and now has her PhD! After her fantastic presentation, the lab celebrated with lots of food and an adorable squirrel drawn by rotation student Thais Klevorn. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1560809404386-AFMHBXT1BD2K4XVDBZGC/Trivia+night+2019_closeup.jpg News Lab Trivia night! The lab gathered for a friendly trivia competition and potluck. The winners took home ‘Top Banana’ trophies and lots of bragging rights. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1560809430688-DIPNT70I4PMS63CEY67Z/DSC_6621.jpg News Students at farewell party, Nov. 2018 In November 2018, we bid farewell to some fabulous coworkers who were all moving to new cities. We celebrated our time with them with a NYC-themed photobooth. Wishing them all well in their labs! https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1560809696486-AEDORS71VIHX40ZAVRBL/IMG_20181012_171747.jpg News Lab Paint Night! (October 2018) Sometime we gather together to decompress in a relaxed coffee-table music vibe paint night. First of its kind and because of popularity, many more to come. https://www.ehrtschnappingerlabs.org/people-1 daily 0.75 2026-01-30 https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1769800101709-B0HZ5NFSDAXXGB8M223Q/USE+ME+Lab+group+photo+used+for+website.jpg People https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1728413729439-8Y7TV2UQNUMNCFRDHA2A/2021_groupshot_cr16%3B9_small_size.jpg People https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1625259073042-39UWMK3676JXYPK2J6F0/FINAL_MG_7641.jpg People https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1625259052991-HFJGOMVH41V5YG6FPVP9/Groupshot_MG_9556.jpg People https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1557349098223-SDXIO334JSJK1Q6V1DBO/FINAL_EhrtSchnappingerLab_groupshot_05_25_17_MG_7986.jpg People - 2017 https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1557349071104-YNHZ0OR2S91554UUQ1PS/_MG_5428.jpg People - 2014 https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/db1ec808-befe-47bd-ab33-78f8219812ea/sally.jpg People - Xiaoxian An (Sally) Sally grew up in Dalian, China, and completed her PhD studies at the University of Cincinnati in Pharmaceutical Sciences in 2020. Sally’s previous research experience was mainly in neuroscience, including developing biomaterials for peripheral nerve repair and discovering rapid-acting antidepressants. She was introduced to immunology when working as a research associate on B cell lymphoma at Weill Cornell before joining the Schnappinger lab in April 2024. Even though from a different background, Sally is still fascinated by the intricate disease mechanisms and the challenges in developing new therapies. Sally also really enjoys working on a project on the molecular and genetic levels, besides her familiarity with animal behaviors. Outside the lab, she likes to walk dogs in the park, explore new coffee shops, and practice yoga. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1558575422469-7XDVHQVHRJYHMAH1F31L/Arka_lab+photo.jpg People - Arka Banerjee Arka is originally from Kolkata, India. After completing his MSc from the Department of Biotechnology, University of Calcutta, Kolkata, Arka obtained his PhD from the Indian Institute of Science (IISc), Bangalore, under the guidance of Prof Sandhya S. Visweswariah. He joined the laboratory of Prof Dirk Schnappinger as a Postdoctoral Associate in 2018. His current research interests focus on developing directed regulatory switches in mycobacteria and use them to better understand their cellular physiology. In his free time, Arka enjoys cooking and reading about popular science and current affairs. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/2a10dfe0-70b9-45cf-b457-bb65d284b78d/DSC09038.jpg People - Harmanjit Singh Bansal Harman grew up in Punjab, India. He did his Bachelor of Technology in Indian Institute of Technology (IIT) Kanpur in 2014, in the program of Biological Sciences and Bioengineering where he worked with essential ribosomal assembly protein in mycobacteria, EngA. After that, worked as a Graduate Trainee in National Centre for Biological Sciences (NCBS), Bengaluru, working with and developing statistical methods to analyze fluorescent imaging data from high throughput cell-based phenotypic screens. He joined Ehrt Lab in Fall 2018 and started working with the stringent response in mycobacteria. Outside of the lab, he likes running, painting, gaming, and reading classic fiction. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1620744797306-BQT915UQX49UTS34F1SH/anthony_castro_portrait.jpg People - Anthony Castro Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1627408722012-44U14UEMLWK5ND5T510Q/luming_cr.jpg People - Luming Chan Luming graduated from the Macaulay Honors College at Hunter College in 2021, where he earned his bachelors degrees in biology and music. Previously Luming has volunteered and worked in the Ehrt lab as a summer student starting in 2015 and is now working as a technician. Outside of the lab he enjoys cooking, playing the cello, and admiring the plants and animals of New York. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/f8aecf1e-b420-4f2f-8c4c-12fe3444c5d6/Graduation_Headshot.png People - Kathryn Eckartt Kathryn grew up on Long Island, New York and earned her undergraduate degree in biochemistry from Stony Brook University. She then joined the lab of Jeremy Rock at The Rockefeller University for her PhD. There she studied mechanisms causing and compensating for the growth defect of Mycobacterium tuberculosis resistant to the front-line antibiotic Rifampicin. She joined the Schnappinger lab in February 2025, where she is exploring host-pathogen interactions and strengthening her computational skills. In her free time, she enjoys running, knitting, and horror movies. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1557778475783-EXYOV4E721R41E5YH82U/alexandre_cr.jpg People - Alexandre Gouzy Alexandre Gouzy obtained his Ph.D. in Microbiology from the University of Toulouse, France. During his PhD, he studied the mechanisms by which Mycobacterium tuberculosis exploits nitrogen during infection in Dr. Olivier Neyrolle’s laboratory at the Institute of Pharmacology and Structural Biology (IPBS). Since 2014, he is a postdoctoral fellow in the laboratory of Sabine Ehrt at Weill Cornell Medicine where he investigates the contribution of bacterial nutrition and metabolism in the resistance against immunity and anti-tuberculosis drugs. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/e85efe3c-3a74-4fbc-9c00-a0582034a4ce/Moritz_small.jpg People - Moritz Kayser Moritz grew up in Wiesbaden, Germany and studied medicine at the Hannover Medical School in Hannover, Germany. He completed his M.D. thesis in the lab of Prof. Ulrich Kalinke at Twincore Center for Clinical and Experimental Infection Research, Hannover, investigating the efficacy of a novel, liposome-based targeted therapy of M.bovis BCG-infected alveolar macrophages and dendritic cells in a murine TB model. After graduating, Moritz joined the residency program at the Department of Respiratory Medicine and Infectious Disease of Hannover Medical School, where he worked on clinical research projects on immunological therapy for severe asthma and infectious disease in lung transplant recipients while training as a physician. He joined the Ehrt lab in 2024 as a Postdoctoral Research Fellow, exploring the role of the mycobacterial proteasome in acid adaptation. In his free time, Moritz enjoys reading, running, bouldering and exploring the playgrounds of New York with his wife and young daughter. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1567090248992-YN7U8W8SG9L03NR19F2Q/heatherkim.jpg People - Heather Kim Heather joined the Ehrt-Schnappinger Labs in July of 2019. She received her B.S. in biology at SUNY New Paltz, and her M.A in biology concentrating in biotechnology at Hunter College. Previously, she worked in the clinical genetic diagnostic department at the University of Pennsylvania analyzing blood and tissue samples to identify hereditary disease markers; and in the mucosal immunology department at SUNY-University at Albany examining the interactions of fungi and beta-glucan particles with murine Peyer’s Patches. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1557778544398-4FNXE1HGTXN9939N4M9P/Ha-Na+Lee+photo_cr.jpg People - Ha-Na Lee Ha-Na received her Ph.D degree with the major of microbiology from Pusan National University in South Korea in Feb 2018. During her Ph. D, she studied the regulation of peroxide stress responses in Mycobacterium smegmatis. She joined the laboratory of Dr. Dirk Schnappinger in Apr 2018 and now is working on a project for identification and characterization of genes involved in the utilization of biotin in Mycobacterium tuberculosis. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1557778592338-XAD7JXHKQCSCTOO249BC/Sae+Woong_cr.jpg People - Sae-Woong Park Assistant Professor Sae Woong Park is from Seoul, Korea. He received his M.S. and Ph.D. degree in Microbiology from Yonsei University and has been working at Weill Cornell Medicine since 2008. His research focus is biotin biosynthesis in Mycobacterium tuberculosis and the interaction of Mtb with microbiota. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/ecea74e6-e63e-42b3-8d3d-f6a44f6288a5/Kaushik+Raman.jpg People - Kaushik Raman Kaushik, originally from Chennai, India. I obtained my bachelor's in biotechnology from Anna University, Chennai, during which I worked at IISc, studying the causal effect of STRs in dementia. I received my master's in Biology with a specialization in Bioinformatics from New York University. For my master's research, I created an R package that takes annotation data for orthologous species and creates a database to better understand organisms and their genes. In my free time, I enjoy cooking, playing badminton and going on walks across the city. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1557778607393-56TKXRAW91V0Z2KFV4IJ/Di+Qu_cr.jpg People - Di Qu Di Qu obtained her Ph.D. at the Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai. During her Ph.D., she mainly focused on the molecular mechanisms of HIV-1 replication and latency in Dr. Jianhua Wang’s laboratory. She joined Dr. Dirk Schnappinger’s laboratory at Department of Microbiology and Immunology, Weill Cornell Medicine in November 2017. At present, she is working on the metabolism of Mycobacterium tuberculosis, specifically biotin synthesis, in attempt to validate new drug targets for tuberculosis treatment. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/cd9b8a71-2507-41ce-b310-56e77bd7e143/Stupar_Miljan_small.jpg People - Miljan Stupar Miljan Stupar obtained his bachelor’s degree and doctorate in Microbiology and Immunology from The University of Queensland, Australia. His doctoral research focused on understanding the adaptive mechanisms of Mycobacterium tuberculosis during acid stress. In late 2023 he joined the Ehrt lab as a postdoctoral associate, where he studies the genetic foundations of paucibacillary infection and the mechanisms underpinning effective multi-drug regimens for tuberculosis. In his free time, he enjoys cycling, running and reading. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1620655194685-723P77VE01RTXL38SG40/Prajna_cropped.jpg People - Prajna Tripathi Prajna is originally from India. She pursued her Masters in Biotechnology from the School of Biotechnology, BHU (Banaras Hindu University) and later obtained her PhD from National Institute of Immunology, New Delhi, India in the year 2019. In her PhD, Prajna investigated the mechanisms by which ClpB - a refoldase chaperones of Mycobacterium tuberculosis, aids in its stress management. She joined the Ehrt-Schnappinger labs as a Postdoctoral Associate in January 2021. In her free time, Prajna enjoys cooking, walking in parks, reading, and talking to family and friends. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1557778643178-2JWUN38JMINSW040OPAU/caro_cr.jpg People - Carolina Trujillo Trujillo Carolina grew up in Medellín, Colombia and received her Ph.D. in Microbiology from Boston University in 2009. She joined Dr. Sabine Ehrt’s Lab as a Postdoctoral Associate initially exploring the nutritional requirements of Mycobacterium tuberculosis (Mtb) essential for establishing and maintaining a chronic infection. Since then, she has been contributing to multiple projects in the lab, including efforts to characterize mechanisms important for Mtb virulence, validation of new drug targets for tuberculosis, and identifying molecular processes that Mtb requires for paucibacillary persistence. Besides her research, she likes to keep the lab running and organized. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1611092035071-V1KEEHXIQHOOD04KEA8M/Valerie.jpg People - Valerie Vinette Valerie obtained her bachelor’s in Microbiology and Immunology from McGill University, her master’s in Anatomy and Cell Biology from Sherbrooke University and her Ph.D. in Biochemistry from McGill University, Canada. During her Ph.D., she studied the role of protein tyrosine phosphatases in regulating the metabolism of colorectal cancer cells as well as their involvement in modulating macrophage immune responses. Having been very interested and intrigued by Mycobacterium tuberculosis ever since working in a TB lab during her undergrad, she decided to go back to her roots and thus joined the Ehrt lab as a postdoctoral associate in November 2020, where she plans on studying the immunometabolism of Mycobacterium tuberculosis. In her free time, she enjoys baking, playing board games, chilling with her cat Abigail and being outdoors. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1582301164367-5HDR9YXG1O2DUBEMWHYQ/ScientistEmoji_male.jpg People - Josh Wallach Josh graduated from the University School of Milwaukee and New York University. He came to Weill Cornell in 2006. Josh is one of the original members of the Schnappinger lab. *Webmaster note: Josh is incredibly helpful when you need to troubleshoot cloning, and has been on every winning trivia team our lab has had. https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/3b8e91ca-2bfd-40c5-9e37-5dca828fa9e2/Jessica_small.jpg People - Jessica Willdigg Jessica was born and raised on Long Island, New York. She earned her bachelor’s degree in developmental genetics from Stony Brook University. Following her undergraduate education, she pursued a Fulbright fellowship at the University of Copenhagen where she studied stringent response in the laboratory of Dr. Kenn Gerdes. She then earned her PhD in molecular biology at Cornell University where she studied cell envelope stress responses in Bacillus subtilis in the laboratory of Dr. John Helmann. She joined the laboratory of Dr. Dirk Schnappinger as a postdoctoral associate in September 2023 https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1620745049246-IYJSIJRCXDEU40MLTUH0/photo-Yuanyuan+Xu_cr.jpg People - Yuanyuan Xu Whatever it is, the way you tell your story online can make all the difference. https://www.ehrtschnappingerlabs.org/ehrt-lab daily 0.75 2021-08-25 https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1557780533548-8F701OU1E11JSIN8Y5W4/women_in_science.jpg Ehrt lab https://www.ehrtschnappingerlabs.org/home daily 1.0 2024-10-08 https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1728413552670-V31L4JCG1W07Q2ERBRHS/final+Lab+picture.jpg Home https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1560273086558-1Q43OTK3CGCR98IVXVWF/SE_2_June+2019.jpg Home https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1560291283126-Y10MSLPRA04131TIZ39O/Dirk+-+pic+for+website.jpg Home https://www.ehrtschnappingerlabs.org/new-page daily 0.75 2019-05-08 https://www.ehrtschnappingerlabs.org/schnappinger-lab daily 0.75 2021-08-25 https://images.squarespace-cdn.com/content/v1/5cc0ad49da50d339445fdc5b/1560399113220-2CWUQVNMZCWPOXZXRHY5/DSC_8495.jpg Schnappinger Lab https://www.ehrtschnappingerlabs.org/schnappinger-lab-publications daily 0.75 2019-05-08 https://www.ehrtschnappingerlabs.org/ehrtpubs daily 0.75 2025-05-20 https://www.ehrtschnappingerlabs.org/schnappingerpubs daily 0.75 2025-05-20