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MOTIVATION: Most of the structures and functions of proteome globular domains are yet unknown. We can use high-resolution structures from different modular domains in combination with automatic protein design algorithms to predict genome-wide potential interactions of a protein. ADAN database and related web tools are online resources for the predictive analysis of ligand-domain complexes. ADAN database is a collection of different modular protein domains (SH2, SH3, PDZ, WW, etc.). It contains 3505 entries with extensive structural and functional information available, manually integrated, curated and annotated with cross-references to other databases, biochemical and thermodynamical data, simplified coordinate files, sequence files and alignments. Prediadan, a subset of ADAN database, offers position-specific scoring matrices for protein-protein interactions, calculated by FoldX, and predictions of optimum ligands and putative binding partners. Users can also scan a query sequence against selected matrices, or improve a ligand-domain interaction. AVAILABILITY: ADAN is accessible at http://adan-embl.ibmc.umh.es/ or http://adan.crg.es/.
Assuntos
Motivos de Aminoácidos , Proteínas/química , Proteínas/metabolismo , Software , Algoritmos , Sítios de Ligação , Biologia Computacional/métodos , Bases de Dados de Proteínas , Mapeamento de Interação de Proteínas , Estrutura Terciária de Proteína , Análise de Sequência de ProteínaRESUMO
In the original HTML version of this Article, the order of authors within the author list was incorrect. The IMEx Consortium contributing authors were incorrectly listed as the last author and should have been listed as the first author. This error has been corrected in the HTML version of the Article; the PDF version was correct at the time of publication.
RESUMO
The current wealth of genomic variation data identified at nucleotide level presents the challenge of understanding by which mechanisms amino acid variation affects cellular processes. These effects may manifest as distinct phenotypic differences between individuals or result in the development of disease. Physical interactions between molecules are the linking steps underlying most, if not all, cellular processes. Understanding the effects that sequence variation has on a molecule's interactions is a key step towards connecting mechanistic characterization of nonsynonymous variation to phenotype. We present an open access resource created over 14 years by IMEx database curators, featuring 28,000 annotations describing the effect of small sequence changes on physical protein interactions. We describe how this resource was built, the formats in which the data is provided and offer a descriptive analysis of the data set. The data set is publicly available through the IntAct website and is enhanced with every monthly release.
Assuntos
Substituição de Aminoácidos , Variação Genética , Anotação de Sequência Molecular , Mutação Puntual , Mapas de Interação de Proteínas , Animais , Doença/genética , HumanosRESUMO
A 43 year-old female patient with angina pectoris and vasospasm demonstrated in the anomalous left circumflex (Cx) and right coronary (RCD) arteries by coronary angiograph. Origin of the left Cx from the RCD is the most common coronary anomaly and generally, is considered to be benign. Nevertheless, myocardial ischemia in patient with this anomaly has been described. To our knowledge, this is the first reported case of coronary vasospasm occurring simultaneously in the anomalous left Cx and RCD arteries. The diagnostic troubles and the potential danger of this association were emphasized.
Assuntos
Angina Pectoris/complicações , Vasoespasmo Coronário/complicações , Anomalias dos Vasos Coronários/complicações , Adulto , Angiografia Coronária , Vasoespasmo Coronário/diagnóstico por imagem , Anomalias dos Vasos Coronários/diagnóstico por imagem , Feminino , HumanosRESUMO
We describe the rare angiographic finding of the right coronary artery arising from the middle portion of the left anterior descending coronary artery in a patient with atherosclerotic coronary artery disease and acute myocardial infarction. This anatomic variation has been previously described only four times in the modern literature.
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Anomalias dos Vasos Coronários/diagnóstico , Infarto do Miocárdio/etiologia , Adulto , Angiografia Coronária , Anomalias dos Vasos Coronários/complicações , Eletrocardiografia , Humanos , MasculinoRESUMO
We reported two cases of patients that underwent left internal mammary (LIMA)-coronary bypass graft and developed recurrent myocardial ischemia in the follow-up period caused by stenosis in the subclavian artery. The angiography showed retrograde flow from the left anterior descending artery to subclavian artery. After initial dilatation with a conventional angioplasty balloon catheter, we implanted Palmaz-Schatz Stents, achieving an excellent final result. Our finding suggest that Stent implantation is a safe and effective procedure, and provides an alternative to other forms of revascularization for the treatment of this disorder.
Assuntos
Arteriopatias Oclusivas/terapia , Anastomose de Artéria Torácica Interna-Coronária/efeitos adversos , Stents , Artéria Subclávia , Idoso , Angioplastia Coronária com Balão , Constrição Patológica/diagnóstico por imagem , Constrição Patológica/etiologia , Constrição Patológica/terapia , Angiografia Coronária , Feminino , Humanos , Masculino , Artéria Subclávia/diagnóstico por imagemRESUMO
PIP: The alternating patterns of increase and decrease in the rate of world population growth are discussed, and the climax of this rate of growth in the 1970-1980 decade is described. The author suggests that a reversal of this pattern is likely in the future due to the control of mortality factors and to declining birth rates.^ieng
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Demografia , Dinâmica Populacional , Crescimento Demográfico , População , Ciências SociaisRESUMO
SmartCell has been developed to be a general framework for modelling and simulation of diffusion-reaction networks in a whole-cell context. It supports localisation and diffusion by using a mesoscopic stochastic reaction model. The SmartCell package can handle any cell geometry, considers different cell compartments, allows localisation of species, supports DNA transcription and translation, membrane diffusion and multistep reactions, as well as cell growth. Moreover, different temporal and spatial constraints can be applied to the model. A GUI interface that facilitates model making is also available. In this work we discuss limitations and advantages arising from the approach used in SmartCell and determine the impact of localisation on the behaviour of simple well-defined networks, previously analysed with differential equations. Our results show that this factor might play an important role in the response of networks and cannot be neglected in cell simulations.
Assuntos
Fenômenos Fisiológicos Celulares , Modelos Biológicos , Modelos Químicos , Software , Interface Usuário-Computador , Animais , Simulação por Computador , Humanos , Transdução de Sinais , Processos EstocásticosRESUMO
Descrevemos dois casos de pacientes que haviam sido submetidos a revascularizaçäo do miocárdio com a utilizaçäo da artéria mamária interna esquerda e que desenvolveram na evoluçäo, quadro de insuficiência coronária por estenose da artéria subclávia esquerda. A cinecoronariografia evidenciou fluxo retrógrado da artéria descendente anterior para artéria mamária com enchimento da artéria subclávia distal à estenose que se localizava na sua origem. Após dilataçäo inicial com catater baläo de angioplastia coronária, foram implantados stents de Palmaz-Schantz, obtendo-se excelente aspecto angiográfico, sem complicaçöes e regressäo dos sintomas. Nossos resultados demonstram que a implantaçäo de stents nestes pacientes pode ser realizada com eficácia e segurança, mostrando ser um tratamento alternativo a outras formas de revascularizaçäo cirúrgica ou percutânea para esta doença.
We reported two cases of patients that underwent leftinternal mammary (LIMA) - coronary bypass graft and developed recurrent myocardial ischemia in the follow-up period caused by stenosis in the subclavian artery. The angiography showed retrograde flow from the left anterior descending artery to subclavian artery. After initial dilatation with a conventional angioplasty balloon catheter, we implanted Palmaz-Schatz Stents, achieving an excellent final result. Our finding suggest that Stent implantation is a safe and effective procedure, and provides an alternative to other forms of revascularization for the treatment of this disorder