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SFI Working Papers contain accounts of scientific work of the author(s) and do not necessarily represent the views of the Santa Fe Institute. We accept papers intended for publication in peer-reviewed journals or proceedings volumes, but not papers that have already appeared in print. Except for papers by our external faculty, papers must be based on work(More)
PURPOSE Patients with neurofibromatosis 1 (NF1), NF2, and schwannomatosis are at risk for multiple nerve sheath tumors and premature mortality. Traditional magnetic resonance imaging (MRI) has limited ability to assess disease burden accurately. The aim of this study was to establish an international cohort of patients with quantified whole-body internal(More)
Mutations in human leucine-rich repeat kinase 2 (Lrrk2), a protein of yet unknown function, are linked to Parkinson's disease caused by degeneration of midbrain dopaminergic neurons. The protein comprises several domains including a GTPase and a kinase domain both affected by several pathogenic mutations. To elucidate the molecular interaction network of(More)
Fragmentation of multiple peptides in a single tandem mass scan impairs accuracy of isobaric mass tag based quantification. Consequently, practitioners aim at fragmenting peptide ions with the highest possible purity without compromising on sensitivity and coverage achieved in the experiment. Here we report the first systematic study optimizing delayed(More)
mzXML to a true XML format (mzML) eliminates embedded indexing schemes; consequently, extracted files are compromised in both content and access efficiency1,3. Based on similarities in data structure and access patterns, we suggest that fields such as astronomy are better models for proteomics data analysis (Fig. 1). These fields also rely on common file(More)
Recent improvements in proteomic technologies have collectively yielded data sets that far exceed the capabilities of typical low-throughput interpretation strategies. Unfortunately, tools designed to leverage the "peptide-centric" content of MS-based proteomics lag the current rate of data production. Here, we describe Pathway Palette(More)
The Ku heterodimer plays an essential role in non-homologous end-joining and other cellular processes including transcription, telomere maintenance and apoptosis. While the function of Ku is regulated through its association with other proteins and nucleic acids, the specific composition of these macromolecular complexes and their dynamic response to(More)
Continued progress toward systematic generation of large-scale and comprehensive proteomics data in the context of biomedical research will create project-level data sets of unprecedented size and ultimately overwhelm current practices for results validation that are based on distribution of native or surrogate mass spectrometry files. Moreover, the(More)
Rapidly progressive Alzheimer’s disease (rpAD) is a particularly aggressive form of Alzheimer’s disease, with a median survival time of 7–10 months after diagnosis. Why these patients have such a rapid progression of Alzheimer’s disease is currently unknown. To further understand pathological differences between rpAD and typical sporadic Alzheimer’s disease(More)
Characterization of signaling pathways in embryonic stem cells is a prerequisite for future application of these cells to treat human disease and other disorders. Identification of tyrosine signaling cascades is of particular interest but is complicated by the relatively low levels of tyrosine phosphorylation in embryonic stem cells. These hurdles correlate(More)