Directory

Image of Robert F. Margolskee, M.D., Ph.D.
Robert F. Margolskee, M.D., Ph.D. Jane Coffin Childs Fellow

Stanford University

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Project Title: Cloning of human low density lipoprotein gene(s)

Image of Brian  D. Mariani, Ph.D.
Brian D. Mariani, Ph.D. Jane Coffin Childs Fellow

Harvard University

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Project Title: Temporal specificity of chorion gene expression in Drosophila

Image of Vincent  A. Marinkovich , M.D.
Vincent A. Marinkovich , M.D. Jane Coffin Childs Fellow

Medical Research Council

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Project Title: Medical genetics

Image of Donald  D. Mark, M.D.
Donald D. Mark, M.D. Jane Coffin Childs Fellow

Rockefeller University

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Project Title: Histochemical study of precancerous lesions

Image of Vadim  V. Markovtsov, Ph.D.
Vadim V. Markovtsov, Ph.D. Jane Coffin Childs Fellow

University of California, Los Angeles

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Project Title: Neuronal splicing enhancer complex structure

Image of Michele Markstein, Ph.D.
Michele Markstein, Ph.D. Jane Coffin Childs Fellow

Harvard Medical School

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Project Title: Whole-genome RNAi screens to identify insulator genes

Image of Sudhakar  S. Marla, Ph.D.
Sudhakar S. Marla, Ph.D. Jane Coffin Childs Fellow

Massachusetts Institute of Technology

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Project Title: Platinum oligonucleotides and anticancer drugs

Image of Luciano Marraffini, Ph.D.
Luciano Marraffini, Ph.D. Jane Coffin Childs Fellow

Northwestern University

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Project Title: Mechanisms of sequence-based resistance to bacteriophages and plasmids in Eubacteria

Image of Nicholas R. Marsh-Armstrong, Ph.D.
Nicholas R. Marsh-Armstrong, Ph.D. Jane Coffin Childs Fellow

Carnegie Institution for Science

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Project Title: Xenopus functional assay for the study of apoptosis

Image of Ian  CB. Marshall, Ph.D.
Ian CB. Marshall, Ph.D. Jane Coffin Childs Fellow

Johns Hopkins University

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Project Title: Regulation of nuclear envelope assembly after mitosis

Image of Kira Marshall, Ph.D.
Kira Marshall, Ph.D. Jane Coffin Childs Fellow

Stowers Institute for Medical Research

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Project Title: Molecular mechanisms of fertilization dynamics and prezygotic barriers in Acropora millepora

Dr. Kira Marshall has combined her desire to do rigorous molecular research with her passion to preserve threatened species. As a graduate student, Marshall provided keen insights into the molecular mechanisms of spermatogenesis in marsupial and placental mammals. Now, she’ll return to the sea to gain a better understanding of coral reproduction, to uncover ways to mitigate the rapidly declining coral populations around the world.

Marshall’s graduate studies in Bluma Lesch’s lab at Yale University provided fine detail into gene expression during sperm development – a deeply conserved process with obvious implications for fitness. By characterizing this process in the marsupial opossum and in mouse, a placental mammal, Marshall was able to compare spermatogenesis across the placental-marsupial split. She uncovered a gene program that’s conserved in both species, as well as genes that appear to contribute to the placental mammalian lineage. Marshall’s findings furthered our understanding of germ cell biology as well as infertility.

As a JCC Fellow at the Stowers Institute in Matt Gibson’s lab, Marshall will extend her research on reproduction to a different branch of the evolutionary tree by studying Acropora millepora, a hermaphroditic free spawning coral species. These organisms release bundles of eggs and sperm into the water, yet self-fertilization is exceedingly rare, suggesting that there are mechanisms that control gamete attraction and compatibility. Marshall will investigate the fertilization of this coral species and decipher the means by which they ensure proper mating. Ultimately, Marshall aims for her research to have a direct and positive effect on marine ecosystems by helping to preserve threatened coral species.

Image of G. Steven Martin, Ph.D.
G. Steven Martin, Ph.D. Jane Coffin Childs Fellow

University of California, Berkeley

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Project Title: Cell transformation

Image of Sandra L. Martin, Ph.D.
Sandra L. Martin, Ph.D. Jane Coffin Childs Fellow

University of North Carolina, Chapel Hill

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Project Title: Embryo microinjection

Image of Katherine  J. Martin, PhD
Katherine J. Martin, PhD Jane Coffin Childs Fellow

Harvard University

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Project Title: Mechanisms used by eukaryotic transcriptional activator proteins

Image of Gustavo J. Martinez, Ph.D.
Gustavo J. Martinez, Ph.D. Jane Coffin Childs Fellow

La Jolla Institute for Allergy and Immunology

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Project Title: Induction of anergy/exhaustion by NFAT1

Image of Nicole M. Martinez, Ph.D.
Nicole M. Martinez, Ph.D. Jane Coffin Childs Fellow

Massachusetts Institute of Technology

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Project Title: Defining the landscape and function of pseudouridines in pre-mRNA

Image of John T. Matschiner, Ph.D.
John T. Matschiner, Ph.D. Jane Coffin Childs Fellow

University of California, Berkeley

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Project Title: Mouse leukemia

Image of Steven  W. Matson, Ph.D.
Steven W. Matson, Ph.D. Jane Coffin Childs Fellow

Harvard University

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Project Title: T7 DNA replication in vitro

Image of William  D. Matthew, Ph.D.
William D. Matthew, Ph.D. Jane Coffin Childs Fellow

Harvard Medical School

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Project Title: Development of cholinergic neurons

Image of Hugh  R. Matthews, Ph.D.
Hugh R. Matthews, Ph.D. Jane Coffin Childs Fellow

Stanford University

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Project Title: Interaction of lac-repressor protein with DNA

Image of David  A. Matthews, Ph.D.
David A. Matthews, Ph.D. Jane Coffin Childs Fellow

University of California, San Diego

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Project Title: Structure determination of the enzyme dihydrofolate reductase

Image of Richard  EF. Matthews, Ph.D.
Richard EF. Matthews, Ph.D. Jane Coffin Childs Fellow

University of Wisconsin, Madison

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Project Title: Tumor viruses

Image of Benjamin J. Matthews, Ph.D.
Benjamin J. Matthews, Ph.D. Jane Coffin Childs - HHMI Fellow

Rockefeller University

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Project Title: Molecular genetics of water sensation and oviposition site preference the in the yellow fever mosquito

Image of M. Uljana Mayer, Ph.D.
M. Uljana Mayer, Ph.D. Jane Coffin Childs Fellow

Pennsylvania State University

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Project Title: Helicase dynamics in DNA replication

Image of Andrew D. McAinsh, Ph.D.
Andrew D. McAinsh, Ph.D. Jane Coffin Childs Fellow

Massachusetts Institute of Technology

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Project Title: Probing molecular tensionometer at yeast kinetochores

Image of Gretchen McCaffrey, Ph.D.
Gretchen McCaffrey, Ph.D. Jane Coffin Childs Fellow

University of California, San Francisco

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Project Title: Kinesin's biological roles, a genetic approach

Image of William H. McClain, Ph.D.
William H. McClain, Ph.D. Jane Coffin Childs Fellow

Medical Research Council (MRC),UKRI

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Project Title: Structure and function in transfer in RNA

Image of Alison A. McCormick, Ph.D.
Alison A. McCormick, Ph.D. Jane Coffin Childs Fellow

Stanford University

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Project Title: Transcriptional regulation by homeotic genes

Image of Margaret M. McDaniel, Ph.D.
Margaret M. McDaniel, Ph.D. Jane Coffin Childs Fellow

University of Washington

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Project Title: Tissue Specific Sentinels of Type 2 Immunity

The innate immune system is paramount in recognizing foreign or mutated material and initiating proper immune responses to combat them. Recognition of allergens and parasitic worms (helminths) elicit a socalled “type 2” immune response focused on expulsion of stimuli and tissue repair. Type 2 immune responses impact the prognosis of many cancers and the success of immunotherapies, but how these responses are established remains poorly understood. Group 2 innate lymphoid cells (ILC2s) initiate and propagate type 2 immune responses, but do not sense immune agonists directly. The origin and regulation of host-derived signals leading to ILC2 activation is therefore an area of immense interest. Recent work identified a specialized population of epithelial tuft cells responsible for sensing helminths and activating ILC2s by secreting interleukin(IL)-25 and cysteinyl leukotrienes in the small intestine. Airway ILC2s are similarly important for type 2 immune responses in the lung, but tuft cells are dispensable in this context. My proposal seeks to identify the signals that activate intestinal tuft cells and a novel cell subset responsible for airway ILC2 activation. Examining the initiation of type 2 immunity in multiple organs will uncover both convergent and divergent mechanisms by which type 2 responses can be further manipulated.

Image of Sasha Alexia T. McDowell, Ph.D.
Sasha Alexia T. McDowell, Ph.D. Merck - Jane Coffin Childs Fellow

Harvard Medical School

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Project Title: A thirst for blood: structural mechanisms of human hunting by mosquitoes

Taste can be instructive: for example, the taste of a calorie-rich pastry is highly pleasurable while spoiled food is off-putting. Sasha McDowell, Ph.D.’s graduate research revealed the molecular details of how fruit flies are repelled by too much salt yet attracted to just the right amount. As a Jane Coffin Childs-Merck Fellow McDowell will now explore a related mechanism for how mosquitoes are attracted to the odor of their human prey.

During her thesis research in Michael Gordon’s lab at the University of British Columbia, McDowell investigated how fruit flies taste and respond to salt. She identified the first salt-specific receptor in Drosophila melanogaster and demonstrated how this ionotropic receptor (IR) functions to avoid high salt concentrations. McDowell then investigated a related receptor which is involved in salt attraction. She found that the receptor activity is tuned in response to prior salt consumption. Together, McDowell’s studies reveal how IRs are involved in both salt attraction and repulsion to balance overall dietary intake.

Near the end of her graduate research McDowell contracted dengue fever through a mosquito bite. Naturally, she was curious about what attracts mosquitoes to their human prey, which will be her focus in Josefina del Mármol’s lab at Harvard. Previous research had shown that a mosquito IR is involved in their attraction, though it remains unclear what component of human odor this receptor detects. Dr. McDowell aims to discover this missing attractant, understand how the receptor binds to the attractant, and find inhibitors that prevent mosquitoes’ attraction to humans. In addition to providing fundamental information about mosquito biology, McDowell’s research may reveal new strategies for bio-control efforts.

Image of Kevin McEntee, Ph.D.
Kevin McEntee, Ph.D. Jane Coffin Childs Fellow

Stanford University

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Project Title: Enzymatic analysis of general recombination

Image of Duncan  J. McGeoch, Ph.D.
Duncan J. McGeoch, Ph.D. Jane Coffin Childs Fellow

Harvard Medical School

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Project Title: RNA transcription

Image of William  J. McGinnis, Ph.D.
William J. McGinnis, Ph.D. Jane Coffin Childs Fellow

University of Basel /
University of Basel, Switzerland

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Project Title: Isolation of Drosophila genes

Image of Bradley W. McIntyre, Ph.D.
Bradley W. McIntyre, Ph.D. Jane Coffin Childs Fellow

Stanford University

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Project Title: Differentiation of T cells initiated by stimulation of the T cell antigen receptor

Image of David  B. McKay, Ph.D.
David B. McKay, Ph.D. Jane Coffin Childs Fellow

California Institute of Technology /
Yale University

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Project Title: Human thrombin, lactose repressor system

Image of Bruce  D. McKee, Ph.D.
Bruce D. McKee, Ph.D. Jane Coffin Childs Fellow

University of California, San Diego

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Project Title: Role of x heterochromatin in control of meiosis and spermatogenesis in D. melanogaster

Image of Jeffrey  F. McKelvy, Ph.D.
Jeffrey F. McKelvy, Ph.D. Jane Coffin Childs Fellow

Weizmann Institute of Science, Israel

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Project Title: Mechanism of enzymatic action of lysozyme

Image of Michael  A. McMurray, Ph.D.
Michael A. McMurray, Ph.D. Jane Coffin Childs Fellow

University of California, Berkeley

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Project Title: Analysis of septin filament assembly in S. Cerevisiae

Image of Walter S. McNutt, Ph.D.
Walter S. McNutt, Ph.D. Jane Coffin Childs Fellow

University of Copenhagen /
Cambridge University, England

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Project Title: Nucleic acids

Image of Christina  K. McPhee Kary, Ph.D.
Christina K. McPhee Kary, Ph.D. Jane Coffin Childs - HHMI Fellow

Harvard University

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Project Title: The role of PHA-4 binding in cell fate specification during organ formation

Image of Eric S. Meadows, Ph.D.
Eric S. Meadows, Ph.D. Jane Coffin Childs Fellow

Stanford University

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Project Title: Biosynthetic engineering of a polyketide synthase

Image of Elizabeth  M. Meiering, Ph.D.
Elizabeth M. Meiering, Ph.D. Jane Coffin Childs Fellow

Harvard Medical School

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Project Title: NMR studies of human dihydrofolate reductase

Image of Joshua D. Meisel, Ph.D.
Joshua D. Meisel, Ph.D. Jane Coffin Childs - Merck Fellow

Massachusetts General Hospital

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Project Title: Molecular mechanisms of oxygen sensation and mitochondrial dysfunction

Molecular oxygen presents a fundamental biological problem: it is vital for life, yet also incredibly toxic. As the terminal electron acceptor in aerobic respiration and the redox engine of mitochondria, oxygen provides eukaryotes with the vast majority of their energy. However when molecular oxygen is reduced it can form damaging reactive species, and recent work has demonstrated that animals with genetic lesions in the mitochondrial respiratory chain are extremely vulnerable to oxygen toxicity. How animals have evolved to manage this double-edged sword remains a fundamental question._x000D_
The biology and natural ecology of the nematode C. elegans make it an attractive system in which to study oxygen tolerance. Wild type C. elegans are tolerant of oxygen concentrations ranging from 1% to 100%, and years of genetic studies have generated a rich toolbox of mitochondrial mutants. I will use these mutants to study the biology of oxygen tolerance, which may simultaneously shed light on the connection between mitochondrial disease and oxygen toxicity.

Image of Justine A. Melo, Ph.D.
Justine A. Melo, Ph.D. Jane Coffin Childs Fellow

Massachusetts General Hospital

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Project Title: Regulation of energy homeostasis in C. elegans

Image of Elijah L. Mena, Ph.D.
Elijah L. Mena, Ph.D. Jane Coffin Childs - HHMI Fellow

Brigham and Women's Hospital

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Project Title: Defining nuclear-specific degradation pathways

Ubiquitylation is a post-translational modification that regulates the stability of thousands of proteins in our cells. The specificity for ubiquitylation is typically conferred by E3 ubiquitin ligases that attach ubiquitin onto substrate proteins. Despite the critical role that ubiquitylation plays in regulating the abundance and activity of many proteins, most ubiquitylation pathways are still poorly understood and many of the estimated ~600 E3 ubiquitin ligases have no known protein substrates.

Our lab has developed the Global Protein Stability (GPS) assay, which is a way to rapidly monitor protein stability using fluorescent proteins. We have recently been adapting this approach for library-on-library genetic screens in order to map, in parallel, dozens of ubiquitylation substrates to their cognate E3 ubiquitin ligases. We have also been using GPS screens to find degradation pathways specific to particular intracellular compartments. Together, these approaches will shed light on ubiquitylation pathways that are important for human health.

Image of Mortimer  L. Mendelsohn, M.D.
Mortimer L. Mendelsohn, M.D. Jane Coffin Childs Fellow

University of Cambridge, England

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Project Title: Biological effects of irradiation

Image of Michael  D. Mendenhall, Ph.D.
Michael D. Mendenhall, Ph.D. Jane Coffin Childs Fellow

University of California, Santa Barbara /
Scripps Research Institute

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Project Title: Regulation of CDC28 kinase activity

Image of Carlos Mendez-Dorantes, Ph.D.
Carlos Mendez-Dorantes, Ph.D. Jane Coffin Childs Fellow

Dana Farber Cancer Institute

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Project Title: Mechanisms and consequences of

Long interspersed element-1 (LINE-1) is the only active, protein-coding transposon in humans. LINE-1 overexpression and LINE-1 retrotransposition are hallmarks of human cancers, although the impact of LINE-1 activity on cancer genomes and cancer cell growth remains poorly understood. My research focuses on addressing the hypothesis that LINE-1 retrotransposition causes substantial gross genome instability in cancers. Supporting this hypothesis, a recent pan-cancer analysis demonstrated associations between somatically-acquired LINE-1 insertions and segmental copy-number changes. Moreover, our lab recently identified that the Fanconi anemia/ BRCA pathway is required for growth of LINE-1(+) cells, suggesting that this DNA repair pathway might limit genotoxic effects of LINE-1. I am developing several approaches to assess the impact of LINE-1 on genome integrity, and I am evaluating the contribution of the FA/ BRCA pathway to LINE-1-associated DNA damage. These studies will be the first to evaluate the scope of LINE-1-mediated genome instability and should inform efforts to exploit LINE-1 genotoxicity as a cancer therapeutic strategy.

Image of Florian  T. Merkle, Ph.D.
Florian T. Merkle, Ph.D. Jane Coffin Childs Fellow

Harvard Medical School

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Project Title: Generation of hypocretin neurons from narcoleptic patients

The sleep disorder narcolepsy is caused by the degeneration of hypocretin neurons. The goal of my research is to derive hypocretin neurons from narcoleptic patients to study the cause of hypocretin neuron loss.

I was born in Konstanz, Germany and moved to Minnesota at an early age. As a teenager, I decided I wanted to become a neurosurgeon and spent my summers in a neurosurgery laboratory. I discovered I preferred working at the bench and, as an undergraduate at Caltech, I explored different fields of neuroscience. I was most fascinated by the problem of how the brain develops, and studied the lineage and organization of neural stem cells and their progeny in the postnatal brain. My current work combines my interests in cell type specification, the connection of circuitry to behavior, and developing in-vitro models of human diseases. In my free time, I enjoy hiking, cycling, cooking, and bartending.

Image of John  P. Merlie, Ph.D.
John P. Merlie, Ph.D. Jane Coffin Childs Fellow

Institut Pasteur

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Project Title: Membrane synthesis, cell growth and division

Image of Janet E. Mertz, Ph.D.
Janet E. Mertz, Ph.D. Jane Coffin Childs Fellow

Stanford University /
MRC Center, University Medical School, UK

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Project Title: Identification and genomic mapping of SV40-coded polypeptides