Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 13 de 13
Filtrar
Más filtros










Base de datos
Intervalo de año de publicación
1.
Commun Biol ; 7(1): 447, 2024 Apr 11.
Artículo en Inglés | MEDLINE | ID: mdl-38605212

RESUMEN

Protein evolution is constrained by structure and function, creating patterns in residue conservation that are routinely exploited to predict structure and other features. Similar constraints should affect variation across individuals, but it is only with the growth of human population sequencing that this has been tested at scale. Now, human population constraint has established applications in pathogenicity prediction, but it has not yet been explored for structural inference. Here, we map 2.4 million population variants to 5885 protein families and quantify residue-level constraint with a new Missense Enrichment Score (MES). Analysis of 61,214 structures from the PDB spanning 3661 families shows that missense depleted sites are enriched in buried residues or those involved in small-molecule or protein binding. MES is complementary to evolutionary conservation and a combined analysis allows a new classification of residues according to a conservation plane. This approach finds functional residues that are evolutionarily diverse, which can be related to specificity, as well as family-wide conserved sites that are critical for folding or function. We also find a possible contrast between lethal and non-lethal pathogenic sites, and a surprising clinical variant hot spot at a subset of missense enriched positions.


Asunto(s)
Proteínas , Humanos , Dominios Proteicos , Proteínas/metabolismo , Unión Proteica , Secuencia de Bases
2.
Nucleic Acids Res ; 2024 Apr 10.
Artículo en Inglés | MEDLINE | ID: mdl-38597606

RESUMEN

The EMBL-EBI Job Dispatcher sequence analysis tools framework (https://www.ebi.ac.uk/jdispatcher) enables the scientific community to perform a diverse range of sequence analyses using popular bioinformatics applications. Free access to the tools and required sequence datasets is provided through user-friendly web applications, as well as via RESTful and SOAP-based APIs. These are integrated into popular EMBL-EBI resources such as UniProt, InterPro, ENA and Ensembl Genomes. This paper overviews recent improvements to Job Dispatcher, including its brand new website and documentation, enhanced visualisations, improved job management, and a rising trend of user reliance on the service from low- and middle-income regions.

3.
Nucleic Acids Res ; 50(W1): W276-W279, 2022 07 05.
Artículo en Inglés | MEDLINE | ID: mdl-35412617

RESUMEN

The EMBL-EBI search and sequence analysis tools frameworks provide integrated access to EMBL-EBI's data resources and core bioinformatics analytical tools. EBI Search (https://www.ebi.ac.uk/ebisearch) provides a full-text search engine across nearly 5 billion entries, while the Job Dispatcher tools framework (https://www.ebi.ac.uk/services) enables the scientific community to perform a diverse range of sequence analysis using popular bioinformatics applications. Both allow users to interact through user-friendly web applications, as well as via RESTful and SOAP-based APIs. Here, we describe recent improvements to these services and updates made to accommodate the increasing data requirements during the COVID-19 pandemic.


Asunto(s)
Análisis de Secuencia , Programas Informáticos , Humanos , Biología Computacional , COVID-19/epidemiología , Internet , Pandemias , Alineación de Secuencia
4.
Nucleic Acids Res ; 50(D1): D106-D110, 2022 01 07.
Artículo en Inglés | MEDLINE | ID: mdl-34850158

RESUMEN

The European Nucleotide Archive (ENA, https://www.ebi.ac.uk/ena), maintained at the European Molecular Biology Laboratory's European Bioinformatics Institute (EMBL-EBI) provides freely accessible services, both for deposition of, and access to, open nucleotide sequencing data. Open scientific data are of paramount importance to the scientific community and contribute daily to the acceleration of scientific advance. Here, we outline the major updates to ENA's services and infrastructure that have been delivered over the past year.


Asunto(s)
Biología Computacional , Bases de Datos de Ácidos Nucleicos , Nucleótidos/genética , Programas Informáticos , Secuenciación de Nucleótidos de Alto Rendimiento , Humanos , Internet , Anotación de Secuencia Molecular , Nucleótidos/clasificación
5.
Nat Commun ; 12(1): 3494, 2021 06 09.
Artículo en Inglés | MEDLINE | ID: mdl-34108470

RESUMEN

Non-coding RNAs (ncRNA) are essential for all life, and their functions often depend on their secondary (2D) and tertiary structure. Despite the abundance of software for the visualisation of ncRNAs, few automatically generate consistent and recognisable 2D layouts, which makes it challenging for users to construct, compare and analyse structures. Here, we present R2DT, a method for predicting and visualising a wide range of RNA structures in standardised layouts. R2DT is based on a library of 3,647 templates representing the majority of known structured RNAs. R2DT has been applied to ncRNA sequences from the RNAcentral database and produced >13 million diagrams, creating the world's largest RNA 2D structure dataset. The software is amenable to community expansion, and is freely available at https://github.com/rnacentral/R2DT and a web server is found at https://rnacentral.org/r2dt .


Asunto(s)
Biología Computacional/métodos , ARN/química , Bases de Datos de Ácidos Nucleicos , Conformación de Ácido Nucleico , ARN no Traducido/química , Reproducibilidad de los Resultados , Análisis de Secuencia de ARN , Programas Informáticos
6.
Protein Sci ; 29(1): 277-297, 2020 01.
Artículo en Inglés | MEDLINE | ID: mdl-31710725

RESUMEN

The Dundee Resource for Sequence Analysis and Structure Prediction (DRSASP; http://www.compbio.dundee.ac.uk/drsasp.html) is a collection of web services provided by the Barton Group at the University of Dundee. DRSASP's flagship services are the JPred4 webserver for secondary structure and solvent accessibility prediction and the JABAWS 2.2 webserver for multiple sequence alignment, disorder prediction, amino acid conservation calculations, and specificity-determining site prediction. DRSASP resources are available through conventional web interfaces and APIs but are also integrated into the Jalview sequence analysis workbench, which enables the composition of multitool interactive workflows. Other existing Barton Group tools are being brought under the banner of DRSASP, including NoD (Nucleolar localization sequence detector) and 14-3-3-Pred. New resources are being developed that enable the analysis of population genetic data in evolutionary and 3D structural contexts. Existing resources are actively developed to exploit new technologies and maintain parity with evolving web standards. DRSASP provides substantial computational resources for public use, and since 2016 DRSASP services have completed over 1.5 million jobs.


Asunto(s)
Biología Computacional/métodos , Proteínas/química , Análisis de Secuencia de Proteína/métodos , Estructura Secundaria de Proteína , Alineación de Secuencia , Programas Informáticos , Navegador Web
7.
Curr Protoc Bioinformatics ; 66(1): e74, 2019 06.
Artículo en Inglés | MEDLINE | ID: mdl-31039604

RESUMEN

The European Bioinformatics Institute (EMBL-EBI) provides access to a wide range of core databases and analysis tools that are of key importance in bioinformatics. As well as providing web interfaces to these resources, web services are available using REST and SOAP protocols that enable programmatic access and allow their integration into other applications and analytical workflows and pipelines. This article describes the various options available to researchers and bioinformaticians who would like to use our resources via the web interface employing RESTful web service clients provided in Perl, Python, and Java, or would like to use Docker containers to integrate the resources into analysis pipelines and workflows. © 2019 by John Wiley & Sons, Inc.


Asunto(s)
Bases de Datos Genéticas , Internet , Secuencia de Aminoácidos , Bases del Conocimiento , Filogenia , Alineación de Secuencia , Programas Informáticos , Interfaz Usuario-Computador
8.
Nucleic Acids Res ; 47(W1): W636-W641, 2019 07 02.
Artículo en Inglés | MEDLINE | ID: mdl-30976793

RESUMEN

The EMBL-EBI provides free access to popular bioinformatics sequence analysis applications as well as to a full-featured text search engine with powerful cross-referencing and data retrieval capabilities. Access to these services is provided via user-friendly web interfaces and via established RESTful and SOAP Web Services APIs (https://www.ebi.ac.uk/seqdb/confluence/display/JDSAT/EMBL-EBI+Web+Services+APIs+-+Data+Retrieval). Both systems have been developed with the same core principles that allow them to integrate an ever-increasing volume of biological data, making them an integral part of many popular data resources provided at the EMBL-EBI. Here, we describe the latest improvements made to the frameworks which enhance the interconnectivity between public EMBL-EBI resources and ultimately enhance biological data discoverability, accessibility, interoperability and reusability.


Asunto(s)
Análisis de Secuencia , Programas Informáticos , Bases de Datos de Ácidos Nucleicos , Bases de Datos de Proteínas , Alineación de Secuencia , Análisis de Secuencia de Proteína
9.
Nucleic Acids Res ; 47(D1): D351-D360, 2019 01 08.
Artículo en Inglés | MEDLINE | ID: mdl-30398656

RESUMEN

The InterPro database (http://www.ebi.ac.uk/interpro/) classifies protein sequences into families and predicts the presence of functionally important domains and sites. Here, we report recent developments with InterPro (version 70.0) and its associated software, including an 18% growth in the size of the database in terms on new InterPro entries, updates to content, the inclusion of an additional entry type, refined modelling of discontinuous domains, and the development of a new programmatic interface and website. These developments extend and enrich the information provided by InterPro, and provide greater flexibility in terms of data access. We also show that InterPro's sequence coverage has kept pace with the growth of UniProtKB, and discuss how our evaluation of residue coverage may help guide future curation activities.


Asunto(s)
Bases de Datos de Proteínas , Anotación de Secuencia Molecular , Animales , Bases de Datos Genéticas , Ontología de Genes , Humanos , Internet , Familia de Multigenes , Dominios Proteicos/genética , Homología de Secuencia de Aminoácido , Programas Informáticos , Interfaz Usuario-Computador
10.
Bioinformatics ; 34(11): 1939-1940, 2018 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-29390042

RESUMEN

Summary: JABAWS 2.2 is a computational framework that simplifies the deployment of web services for Bioinformatics. In addition to the five multiple sequence alignment (MSA) algorithms in JABAWS 1.0, JABAWS 2.2 includes three additional MSA programs (Clustal Omega, MSAprobs, GLprobs), four protein disorder prediction methods (DisEMBL, IUPred, Ronn, GlobPlot), 18 measures of protein conservation as implemented in AACon, and RNA secondary structure prediction by the RNAalifold program. JABAWS 2.2 can be deployed on a variety of in-house or hosted systems. JABAWS 2.2 web services may be accessed from the Jalview multiple sequence analysis workbench (Version 2.8 and later), as well as directly via the JABAWS command line interface (CLI) client. JABAWS 2.2 can be deployed on a local virtual server as a Virtual Appliance (VA) or simply as a Web Application Archive (WAR) for private use. Improvements in JABAWS 2.2 also include simplified installation and a range of utility tools for usage statistics collection, and web services querying and monitoring. The JABAWS CLI client has been updated to support all the new services and allow integration of JABAWS 2.2 services into conventional scripts. A public JABAWS 2 server has been in production since December 2011 and served over 800 000 analyses for users worldwide. Availability and implementation: JABAWS 2.2 is made freely available under the Apache 2 license and can be obtained from: http://www.compbio.dundee.ac.uk/jabaws. Contact: g.j.barton@dundee.ac.uk.


Asunto(s)
Biología Computacional/métodos , Conformación de Ácido Nucleico , ARN/metabolismo , Programas Informáticos , Algoritmos , Internet , Modelos Moleculares , Deficiencias en la Proteostasis , ARN/química , Alineación de Secuencia , Análisis de Secuencia de Proteína/métodos , Análisis de Secuencia de ARN/métodos
11.
F1000Res ; 72018.
Artículo en Inglés | MEDLINE | ID: mdl-31543945

RESUMEN

Software Containers are changing the way scientists and researchers develop, deploy and exchange scientific software. They allow labs of all sizes to easily install bioinformatics software, maintain multiple versions of the same software and combine tools into powerful analysis pipelines. However, containers and software packages should be produced under certain rules and standards in order to be reusable, compatible and easy to integrate into pipelines and analysis workflows. Here, we presented a set of recommendations developed by the BioContainers Community to produce standardized bioinformatics packages and containers. These recommendations provide practical guidelines to make bioinformatics software more discoverable, reusable and transparent.  They are aimed to guide developers, organisations, journals and funders to increase the quality and sustainability of research software.


Asunto(s)
Biología Computacional , Programas Informáticos , Humanos , Investigadores , Flujo de Trabajo
12.
Bioinformatics ; 31(14): 2276-83, 2015 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-25735772

RESUMEN

MOTIVATION: The 14-3-3 family of phosphoprotein-binding proteins regulates many cellular processes by docking onto pairs of phosphorylated Ser and Thr residues in a constellation of intracellular targets. Therefore, there is a pressing need to develop new prediction methods that use an updated set of 14-3-3-binding motifs for the identification of new 14-3-3 targets and to prioritize the downstream analysis of >2000 potential interactors identified in high-throughput experiments. RESULTS: Here, a comprehensive set of 14-3-3-binding targets from the literature was used to develop 14-3-3-binding phosphosite predictors. Position-specific scoring matrix, support vector machines (SVM) and artificial neural network (ANN) classification methods were trained to discriminate experimentally determined 14-3-3-binding motifs from non-binding phosphopeptides. ANN, position-specific scoring matrix and SVM methods showed best performance for a motif window spanning from -6 to +4 around the binding phosphosite, achieving Matthews correlation coefficient of up to 0.60. Blind prediction showed that all three methods outperform two popular 14-3-3-binding site predictors, Scansite and ELM. The new methods were used for prediction of 14-3-3-binding phosphosites in the human proteome. Experimental analysis of high-scoring predictions in the FAM122A and FAM122B proteins confirms the predictions and suggests the new 14-3-3-predictors will be generally useful. AVAILABILITY AND IMPLEMENTATION: A standalone prediction web server is available at http://www.compbio.dundee.ac.uk/1433pred. Human candidate 14-3-3-binding phosphosites were integrated in ANIA: ANnotation and Integrated Analysis of the 14-3-3 interactome database.


Asunto(s)
Proteínas 14-3-3/metabolismo , Fosfopéptidos/metabolismo , Fosfoproteínas/metabolismo , Proteómica/métodos , Secuencias de Aminoácidos , Sitios de Unión , Células HEK293 , Humanos , Redes Neurales de la Computación , Fosfopéptidos/química , Fosfoproteínas/química , Posición Específica de Matrices de Puntuación , Proteoma/metabolismo , Programas Informáticos , Máquina de Vectores de Soporte
13.
Database (Oxford) ; 2014: bat085, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24501395

RESUMEN

The dimeric 14-3-3 proteins dock onto pairs of phosphorylated Ser and Thr residues on hundreds of proteins, and thereby regulate many events in mammalian cells. To facilitate global analyses of these interactions, we developed a web resource named ANIA: ANnotation and Integrated Analysis of the 14-3-3 interactome, which integrates multiple data sets on 14-3-3-binding phosphoproteins. ANIA also pinpoints candidate 14-3-3-binding phosphosites using predictor algorithms, assisted by our recent discovery that the human 14-3-3-interactome is highly enriched in 2R-ohnologues. 2R-ohnologues are proteins in families of two to four, generated by two rounds of whole genome duplication at the origin of the vertebrate animals. ANIA identifies candidate 'lynchpins', which are 14-3-3-binding phosphosites that are conserved across members of a given 2R-ohnologue protein family. Other features of ANIA include a link to the catalogue of somatic mutations in cancer database to find cancer polymorphisms that map to 14-3-3-binding phosphosites, which would be expected to interfere with 14-3-3 interactions. We used ANIA to map known and candidate 14-3-3-binding enzymes within the 2R-ohnologue complement of the human kinome. Our projections indicate that 14-3-3s dock onto many more human kinases than has been realized. Guided by ANIA, PAK4, 6 and 7 (p21-activated kinases 4, 6 and 7) were experimentally validated as a 2R-ohnologue family of 14-3-3-binding phosphoproteins. PAK4 binding to 14-3-3 is stimulated by phorbol ester, and involves the 'lynchpin' site phosphoSer99 and a major contribution from Ser181. In contrast, PAK6 and PAK7 display strong phorbol ester-independent binding to 14-3-3, with Ser113 critical for the interaction with PAK6. These data point to differential 14-3-3 regulation of PAKs in control of cell morphology. Database URL: https://ania-1433.lifesci.dundee.ac.uk/prediction/webserver/index.py.


Asunto(s)
Proteínas 14-3-3/metabolismo , Bases de Datos de Proteínas , Anotación de Secuencia Molecular/métodos , Mapas de Interacción de Proteínas , Programas Informáticos , Secuencia de Aminoácidos , Cromatografía de Afinidad , Células HEK293 , Humanos , Datos de Secuencia Molecular , Fosfoproteínas/química , Fosfoproteínas/metabolismo , Filogenia , Unión Proteica , Proteínas Quinasas/química , Proteínas Quinasas/metabolismo , Proteoma/metabolismo , Estándares de Referencia , Motor de Búsqueda
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...