95 research outputs found

    Do Governments Sway European Court of Justice Decision-making?: Evidence from Government Court Briefs

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    The European Court of Justice (ECJ) is commonly described as a powerful international force for legal integration. Indeed, past studies indicate that the ECJ has developed a supranational legal order that trumps national law in a broad range of economic policy areas. But this depiction of an autonomous Court driving European integration beyond the desires of the member-states is dubious. We would expect the Court, whose existence depends on an international treaty and whose authority depends on national enforcement, to have strong incentives to decide cases with an eye to concerns of national governments. We argue that past studies -- which were based on a small number of case studies -- cannot demonstrate whether the Court is or is not sensitive to member-state interests. Based on novel dataset of all ECJ decisions over three years, we develop an empirical test of member-state influence on ECJ decisions and demonstrate that the Court does temper its decisions to accommodate member-state concerns.

    National Party Politics and Supranational Politics in the European Union: New Evidence from the European Parliament

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    Political parties play an important role in structuring political competition at different levels of governance in the European Union (EU). The political parties that contest national elections also participate in the EU legislative institutions, with the governing parties at the national level participating in the Council of Ministers and a broad range of national parties represented in the European Parliament (EP). Recent research indicates that national parties in the EP have formed ideological coalitions -- party groups -- that represent transnational political interests. These party groups appear to manage legislative behavior such that national interests -- which dominate the Council of Ministers -- are subjugated to ideological conflict. In this paper, we demonstrate that the roll-call vote evidence for the impact of party groups in the EP is misleading. Because party groups have incentives to select votes for roll call so as to hide or feature particular voting patterns, the true character of political conflict is never revealed in roll calls.

    Roll-Call Vote Selection: Implications for the Study of Legislative Politics

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    Roll-call votes provide scholars with the opportunity to measure many quantities of interest. However, the usefulness of the roll-call sample depends on the population it is intended to represent. After laying out why understanding the sample properties of the roll-call record is important, we catalogue voting procedures for 145 legislative chambers, finding that roll calls are typically discretionary. We then consider two arguments for discounting the potential problem: (a) roll calls are ubiquitous, especially where the threshold for invoking them is low or (b) the strategic incentives behind requests are sufficiently benign so as to generate representative samples. We address the first defense with novel empirical evidence regarding roll-call prevalence and the second with an original formal model of the position-taking argument for roll-call vote requests. Both our empirical and theoretical results confirm that inattention to vote method selection should broadly be considered an issue for the study of legislative behavior

    Structural studies of the PARP-1 BRCT domain

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    <p>Abstract</p> <p>Background</p> <p>Poly(ADP-ribose) polymerase-1 (PARP-1) is one of the first proteins localized to foci of DNA damage. Upon activation by encountering nicked DNA, the PARP-1 mediated trans-poly(ADP-ribosyl)ation of DNA binding proteins occurs, facilitating access and accumulation of DNA repair factors. PARP-1 also auto-(ADP-ribosyl)ates its central BRCT-containing domain forming part of an interaction site for the DNA repair scaffolding protein X-ray cross complementing group 1 protein (XRCC1). The co-localization of XRCC1, as well as bound DNA repair factors, to sites of DNA damage is important for cell survival and genomic integrity.</p> <p>Results</p> <p>Here we present the solution structure and biophysical characterization of the BRCT domain of rat PARP-1. The PARP-1 BRCT domain has the globular α/β fold characteristic of BRCT domains and has a thermal melting transition of 43.0°C. In contrast to a previous characterization of this domain, we demonstrate that it is monomeric in solution using both gel-filtration chromatography and small-angle X-ray scattering. Additionally, we report that the first BRCT domain of XRCC1 does not interact significantly with the PARP-1 BRCT domain in the absence of ADP-ribosylation. Moreover, none of the interactions with other longer PARP-1 constructs which previously had been demonstrated in a pull-down assay of mammalian cell extracts were detected.</p> <p>Conclusions</p> <p>The PARP-1 BRCT domain has the conserved BRCT fold that is known to be an important protein:protein interaction module in DNA repair and cell signalling pathways. Data indicating no significant protein:protein interactions between PARP-1 and XRCC1 likely results from the absence of poly(ADP-ribose) in one or both binding partners, and further implicates a poly(ADP-ribose)-dependent mechanism for localization of XRCC1 to sites of DNA damage.</p

    LONGO: An R package for interactive gene length dependent analysis for neuronal identity

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    Motivation: Reprogramming somatic cells into neurons holds great promise to model neuronal development and disease. The efficiency and success rate of neuronal reprogramming, however, may vary between different conversion platforms and cell types, thereby necessitating an unbiased, systematic approach to estimate neuronal identity of converted cells. Recent studies have demonstrated that long genes (\u3e100 kb from transcription start to end) are highly enriched in neurons, which provides an opportunity to identify neurons based on the expression of these long genes. Results: We have developed a versatile R package, LONGO, to analyze gene expression based on gene length. We propose a systematic analysis of long gene expression (LGE) with a metric termed the long gene quotient (LQ) that quantifies LGE in RNA-seq or microarray data to validate neuronal identity at the single-cell and population levels. This unique feature of neurons provides an opportunity to utilize measurements of LGE in transcriptome data to quickly and easily distinguish neurons from non-neuronal cells. By combining this conceptual advancement and statistical tool in a user-friendly and interactive software package, we intend to encourage and simplify further investigation into LGE, particularly as it applies to validating and improving neuronal differentiation and reprogramming methodologies. Availability and implementation: LONGO is freely available for download at https://github.com/biohpc/longo. Supplementary information: Supplementary data are available at Bioinformatics online

    The structural basis for partitioning of the XRCC1/DNA ligase III-α BRCT-mediated dimer complexes

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    The ultimate step common to almost all DNA repair pathways is the ligation of the nicked intermediate to form contiguous double-stranded DNA. In the mammalian nucleotide and base excision repair pathways, the ligation step is carried out by ligase III-α. For efficient ligation, ligase III-α is constitutively bound to the scaffolding protein XRCC1 through interactions between the C-terminal BRCT domains of each protein. Although structural data for the individual domains has been available, no structure of the complex has been determined and several alternative proposals for this interaction have been advanced. Interpretation of the models is complicated by the formation of homodimers that, depending on the model, may either contribute to, or compete with heterodimer formation. We report here the structures of both homodimer complexes as well as the heterodimer complex. Structural characterization of the heterodimer formed from a longer XRCC1 BRCT domain construct, including residues comprising the interdomain linker region, revealed an expanded heterodimer interface with the ligase III-α BRCT domain. This enhanced linker-mediated binding interface plays a significant role in the determination of heterodimer/homodimer selectivity. These data provide fundamental insights into the structural basis of BRCT-mediated dimerization, and resolve questions related to the organization of this important repair complex

    Less Than a state, more than an international organization: The Sui generis nature of the European Union

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    In this paper, I show that the European Union (EU) is less than a state, but more than an international organization. Although it possesses some characteristics of both, the European Union is, I argue, a sui generis project: Although the EU wields extensive influence in some policy areas (such as competition policy or international trade regulation), its institutions’ powers are quite limited in many areas that remain firmly within the grasp of its Member States’ governments (such as security, justice, tax or redistribution policies). The European Union’s supranational elements – especially the EU laws’ supremacy over the laws of individual Member States – distinguish it, furthermore, from international organizations, such as the United Nations or the World Trade Organization. I conclude that the European Union is really a sui generis project that has not been attempted anywhere else: As such, it could be regarded as a useful case study, or perhaps even a “pilot project,” for regional integration projects elsewhere
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