{"doi":"10.1093/nar/gki030","title":"The SYSTERS Protein Family Database in 2005","abstract":null,"journal":"Nucleic Acids Research","year":2004,"id":46513,"datarank":2.184072643437009,"base_score":3.828641396489095,"endowment":3.828641396489095,"self_citation_contribution":0.5742962094733643,"citation_network_contribution":1.6097764339636444,"self_endowment_contribution":0.5742962094733643,"citer_contribution":1.6097764339636444,"corpus_percentile":90.27616616384311,"corpus_rank":1258,"citation_count":45,"citer_count":41,"citers_with_citation_signal":36,"citers_with_endowment":36,"datacite_reuse_total":0,"is_dataset":true,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":215601,"name":"T. Meinel","orcid":null,"position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"resolved":true,"title":"The SYSTERS Protein Family Database in 2005","abstract":"The SYSTERS project aims to provide a meaningful partitioning of the whole protein sequence space by a fully automatic procedure. A refined two-step algorithm assigns each protein to a family and a superfamily. The sequence data underlying SYSTERS release 4 now comprise several protein sequence databases derived from completely sequenced genomes (ENSEMBL, TAIR, SGD and GeneDB), in addition to the comprehensive Swiss-Prot/TrEMBL databases. The SYSTERS web server (http://systers.molgen.mpg.de) provides access to 158 153 SYSTERS protein families. To augment the automatically derived results, information from external databases like Pfam and Gene Ontology are added to the web server. Furthermore, users can retrieve pre-processed analyses of families like multiple alignments and phylogenetic trees. New query options comprise a batch retrieval tool for functional inference about families based on automatic keyword extraction from sequence annotations. A new access point, PhyloMatrix, allows the retrieval of phylogenetic profiles of SYSTERS families across organisms with completely sequenced genomes.","is_dataset_classified":null,"base_score":3.828641396489095,"endowment":3.828641396489095,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"15608183","pmcid":"PMC539984","openalex_id":"https://openalex.org/W2152376949","authors":[],"funders":[],"total_grants":0,"fwci":1.5566,"citation_percentile":0.81800093,"influential_citations":4,"citation_trend":[{"year":2012,"count":3},{"year":2013,"count":2},{"year":2014,"count":4},{"year":2015,"count":4},{"year":2016,"count":1}],"oa_status":"hybrid","license":"other-oa","oa_locations":[{"url":"https://academic.oup.com/nar/article-pdf/33/suppl_1/D226/7621626/gki030.pdf","host_type":"journal"},{"url":"https://academic.oup.com/nar/article-pdf/33/suppl_1/D226/7621626/gki030.pdf","host_type":"BRONZE"},{"url":"https://academic.oup.com/nar/article-pdf/33/suppl_1/D226/7621626/gki030.pdf","host_type":"publisher"},{"url":"http://academic.oup.com/nar/article-pdf/33/suppl_1/D226/7621626/gki030.pdf","host_type":"publisher"},{"url":"https://doi.org/10.1093/nar/gki030","host_type":"journal"},{"url":"https://pubmed.ncbi.nlm.nih.gov/15608183","host_type":"repository"},{"url":"http://edoc.mpg.de/267502","host_type":"repository"},{"url":"http://edoc.mpg.de/272859","host_type":"repository"},{"url":"http://europepmc.org/pmc/articles/PMC539984","host_type":"repository"},{"url":"https://nbn-resolving.org/urn:nbn:de:kobv:526-opus4-6476","host_type":"repository"},{"url":"https://www.ncbi.nlm.nih.gov/pmc/articles/539984","host_type":"repository"},{"url":"http://hdl.handle.net/11858/00-001M-0000-0010-8CE0-4","host_type":"repository"},{"url":"https://europepmc.org/articles/PMC539984","host_type":"Europe_PMC"},{"url":"https://europepmc.org/articles/PMC539984?pdf=render","host_type":"Europe_PMC"}],"fields_of_study":["Genomics and Phylogenetic Studies","Biomedical Text Mining and Ontologies","RNA and protein synthesis mechanisms","Medicine","Biology","Computer Science","Algorithms","Databases, Protein","Phylogeny","Proteins","Sequence Analysis, Protein","Software","User-Computer Interface"],"mesh_terms":["Algorithms","Phylogeny","Proteins","Software","User-Computer Interface","Sequence Analysis, Protein","Databases, Protein"],"keywords":["Ensembl","Biology","UniProt","Phylogenetic tree","RefSeq","Sequence database","Protein sequencing","Protein family","Genome","Web server","Biological database","Protein structure database","Sequence alignment","Sequence (biology)","Computational biology","Database","Gene ontology","Computer science","Bioinformatics","Genomics","Gene","Genetics","The Internet","Peptide sequence","World Wide Web"],"sdg_mappings":[],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-07-10T12:53:58.560241Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}