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PhyloDome--visualization of taxonomic distributions of domains occurring in eukaryote protein sequence sets.

ABSTRACT: The analysis of taxonomic distribution and lineage-specific variation of domains and domain combinations is an important step in the assessment of their functional roles and potential interoperability. In the study of eukaryote sequence sets with many multi-domain proteins, it can become laborious to evaluate the phylogenetic context of the many occurring domains and their mutual relationships. PhyloDome is an answer to that problem. It provides a fast overview on the taxonomic spreading and potential interrelation of domains that are either given as a list of names and PFAM/SMART accessions or derived from a user-defined set of sequences. This taxonomic distribution analysis can be helpful in protein function and interaction assignment as the comparative study of potential Hedgehog pathway members in C.elegans shows. An implementation of PhyloDome is accessible for public use as a WWW-Service at http://mendel.imp.univie.ac.at/phylodome/. Software components are available on request.

SUBMITTER: Novatchkova M

PROVIDER: S-EPMC1160134 | biostudies-literature | 2005 Jul

REPOSITORIES: biostudies-literature

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PhyloDome--visualization of taxonomic distributions of domains occurring in eukaryote protein sequence sets.

Novatchkova Maria M Wildpaner Michael M Schweizer Dieter D Eisenhaber Frank F

Nucleic acids research 20050701 Web Server issue

The analysis of taxonomic distribution and lineage-specific variation of domains and domain combinations is an important step in the assessment of their functional roles and potential interoperability. In the study of eukaryote sequence sets with many multi-domain proteins, it can become laborious to evaluate the phylogenetic context of the many occurring domains and their mutual relationships. PhyloDome is an answer to that problem. It provides a fast overview on the taxonomic spreading and pot ...[more]

PMID: 15980439

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Project description:Protein structure is connected with its function and interaction and plays an extremely important role in protein characterization. As one of the most important analytical methods for protein characterization, Proteomics is widely used to determine protein composition, quantitation, interaction, and even structures. However, due to the gap between identified proteins by proteomics and available 3D structures, it was very challenging, if not impossible, to visualize proteomics results in 3D and further explore the structural aspects of proteomics experiments. Recently, two groups of researchers from DeepMind and Baker lab have independently published protein structure prediction tools that can help us obtain predicted protein structures for the whole human proteome. Although there is still debate on the validity of some of the predicted structures, it is no doubt that these represent the most accurate predictions to date. More importantly, this enabled us to visualize the majority of human proteins for the first time. To help other researchers best utilize these protein structure predictions, we present the Sequence Coverage Visualizer (SCV), http://scv.lab.gy, a web application for protein sequence coverage 3D visualization. Here we showed a few possible usages of the SCV, including the labeling of post-translational modifications and isotope labeling experiments. These results highlight the usefulness of such 3D visualization for proteomics experiments and how SCV can turn a regular result list into structural insights. Furthermore, when used together with limited proteolysis, we demonstrated that SCV can help validate and compare different protein structures, including predicted ones and existing PDB entries. By performing limited proteolysis on native proteins at various time points, SCV can visualize the progress of the digestion. This time-series data further allowed us to compare the predicted structure and existing PDB entries. Although not deterministic, these comparisons could be used to refine current predictions further and represent an important step towards a complete and correct protein structure database. Overall, SCV is a convenient and powerful tool for visualizing proteomics results.

Dataset Information

PhyloDome--visualization of taxonomic distributions of domains occurring in eukaryote protein sequence sets.

Publications

PhyloDome--visualization of taxonomic distributions of domains occurring in eukaryote protein sequence sets.

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