ERC FUNDED PROJECTS

Relative to other species, humans are characterised by considerable biological diversity despite genetic homogeneity. This diversity is reflected in skeletal variation, but we lack sufficient understanding of the underlying mechanisms to adequately interpret the archaeological record. The proposed research will address problems in our current understanding of the origins of human variation in the past by: 1) documenting and interpreting the pattern of global hunter-gatherer variation relative to genetic phylogenies and climatic variation; 2) testing the relationship between environmental and skeletal variation among genetically related hunter-gatherers from different environments; 3) examining the adaptability of living humans to different environments, through the study of energetic expenditure and life history trade-offs associated with locomotion; and 4) investigating the relationship between muscle and skeletal variation associated with locomotion in diverse environments. This will be achieved by linking: a) detailed study of the global pattern of hunter-gatherer variation in the Late Pleistocene and Holocene with; b) ground-breaking experimental research which tests the relationship between energetic stress, muscle function, and bone variation in living humans. The first component tests the correspondence between skeletal variation and both genetic and climatic history, to infer mechanisms driving variation. The second component integrates this skeletal variation with experimental studies of living humans to, for the first time, directly test adaptive implications of skeletal variation observed in the past. ADaPt will provide the first links between prehistoric hunter-gatherer variation and the evolutionary parameters of life history and energetics that may have shaped our success as a species. It will lead to breakthroughs necessary to interpret variation in the archaeological record, relative to human dispersals and adaptation in the past.

1 911 485 €

Start date: 2014-07-01, End date: 2019-06-30

We propose to develop the first high-throughput strategy to design, synthesize, and screen repertoires comprising millions of single-domain camelid antibodies (VHH) that target desired protein surfaces. Each VHH will be individually designed for high stability and target-site affinity. We will leverage recent methods developed by our lab for designing stable, specific, and accurate backbones at interfaces, the advent of massive and affordable custom-DNA oligo synthesis, and machine learning methods to accomplish the following aims: Aim 1: Establish a completely automated computational pipeline that uses Rosetta to design millions of VHHs targeting desired protein surfaces. The variable regions in each design will be encoded in DNA oligo pools, which will be assembled to generate the entire site-targeted repertoire. We will then use high-throughput binding screens followed by deep sequencing to characterize the designs’ target-site affinity and isolate high-affinity binders. Aim 2: Develop an epitope-focusing strategy that designs several variants of a target antigen, each of which encodes dozens of radical surface mutations outside the target site to disrupt potential off-target site binding. The designs will be used to isolate site-targeting binders from repertoires of Aim 1. Each high-throughput screen will provide unprecedented experimental data on target-site affinity in millions of individually designed VHHs. Aim 3: Use machine learning methods to infer combinations of molecular features that distinguish high-affinity binders from non binders. These will be encoded in subsequent designed repertoires, leading to a continuous “learning loop” of methods for high-affinity, site-targeted binding. AutoCAb’s interdisciplinary strategy will thus lead to deeper understanding of and new general methods for designing stable, high-affinity, site-targeted antibodies, potentially revolutionizing binder and inhibitor discovery in basic and applied biomedical research.

2 337 500 €

Start date: 2019-01-01, End date: 2023-12-31

The two fundamental challenges of this project are the integration of medieval Jewries and their histories within the framework of European history without undermining their distinct communal status and the creation of a history of everyday medieval Jewish life that includes those who were not part of the learned elite. The study will focus on the Jewish communities of northern Europe (roughly modern Germany, northern France and England) from 1100-1350. From the mid-thirteenth century these medieval Jewish communities were subject to growing persecution. The approaches proposed to access daily praxis seek to highlight tangible dimensions of religious life rather than the more common study of ideologies to date. This task is complex because the extant sources in Hebrew as well as those in Latin and vernacular were written by the learned elite and will require a broad survey of multiple textual and material sources. Four main strands will be examined and combined: 1. An outline of the strata of Jewish society, better defining the elites and other groups. 2. A study of select communal and familial spaces such as the house, the synagogue, the market place have yet to be examined as social spaces. 3. Ritual and urban rhythms especially the annual cycle, connecting between Jewish and Christian environments. 4. Material culture, as objects were used by Jews and Christians alike. Aspects of material culture, the physical environment and urban rhythms are often described as “neutral” yet will be mined to demonstrate how they exemplified difference while being simultaneously ubiquitous in local cultures. The deterioration of relations between Jews and Christians will provide a gauge for examining change during this period. The final stage of the project will include comparative case studies of other Jewish communities. I expect my findings will inform scholars of medieval culture at large and promote comparative methodologies for studying other minority ethnic groups

1 941 688 €

Start date: 2016-11-01, End date: 2021-10-31

The evolution from a stem cell to differentiated progeny underpins tissue development and homeostasis, which are driven by a multitude of cell fate choices. The transitions underlying these choices are not well understood. There are a number of challenges that must be overcome to achieve this understanding. In the proposed research we will tackle two of the challenges: first, the dynamics of fate choices, i.e. the dependence of transitions on time and inductive signals, remains cryptic; second, mechanical signalling regulates instructive cues for transitions but its role in the process is uncertain. One of the primary reasons these important aspects of cell fate choice remain a mystery is because the biology has not been coupled to the biotechnology appropriate to unravel it. This is the purpose of the proposed research: we will develop tools based in microfluidics, microfabrication and hydrogels and integrate them with our stem cell biology expertise to illuminate the process of cell fate choice. We will develop single cell microfluidic technology that possesses unprecedented temporal resolution and control over the signalling environment to study cell fate dynamics. We will also synthesize hydrogel substrates to exert complete control over the mechanical microenvironment of stem cells. Finally, we will advance tools to apply reproducible and defined forces to cells in order to study the role mechanical signalling in cell fate choice. Developing the proposed technology kit hand-in-hand with its biological applications will allow us to delve into the mechanisms of biological transitions in multiple stem cell systems, allowing us to uncover universal phenomena governing cell fate choice.

1 876 618 €

Start date: 2018-04-01, End date: 2023-03-31