{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,31]],"date-time":"2025-05-31T11:41:48Z","timestamp":1748691708106},"reference-count":24,"publisher":"Springer Science and Business Media LLC","issue":"S4","content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["BMC Bioinformatics"],"published-print":{"date-parts":[[2011,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n          <jats:sec>\n            <jats:title>Background<\/jats:title>\n            <jats:p>The use of a standard human sequence variant nomenclature is advocated by the Human Genome Variation Society in order to unambiguously describe genetic variants in databases and literature. There is a clear need for tools that allow the mining of data about human sequence variants and their functional consequences from databases and literature. Existing text mining focuses on the recognition of protein variants and their effects. The recognition of variants at the DNA and RNA levels is essential for dissemination of variant data for diagnostic purposes. Development of new tools is hampered by the complexity of the current nomenclature, which requires processing at the character level to recognize the specific syntactic constructs used in variant descriptions.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results<\/jats:title>\n            <jats:p>We approached the gene variant nomenclature as a scientific sublanguage and created two formal descriptions of the syntax in Extended Backus-Naur Form: one at the DNA-RNA level and one at the protein level. To ensure compatibility to older versions of the human sequence variant nomenclature, previously recommended variant description formats have been included. The first grammar versions were designed to help build variant description handling in the Alamut mutation interpretation software. The DNA and RNA level descriptions were then updated and used to construct the context-free parser of the Mutalyzer 2 sequence variant nomenclature checker, which has already been used to check more than one million variant descriptions.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusions<\/jats:title>\n            <jats:p>The Extended Backus-Naur Form provided an overview of the full complexity of the syntax of the sequence variant nomenclature, which remained hidden in the textual format and the division of the recommendations across the DNA, RNA and protein sections of the Human Genome Variation Society nomenclature website (<jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"http:\/\/www.hgvs.org\/mutnomen\/\" ext-link-type=\"uri\">http:\/\/www.hgvs.org\/mutnomen\/<\/jats:ext-link>). This insight into the syntax of the nomenclature could be used to design detailed and clear rules for software development. The Mutalyzer 2 parser demonstrated that it facilitated decomposition of complex variant descriptions into their individual parts. The Extended Backus-Naur Form or parts of it can be used or modified by adding rules, allowing the development of specific sequence variant text mining tools and other programs, which can generate or handle sequence variant descriptions.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1186\/1471-2105-12-s4-s5","type":"journal-article","created":{"date-parts":[[2011,8,9]],"date-time":"2011-08-09T19:20:25Z","timestamp":1312917625000},"update-policy":"http:\/\/dx.doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["A formalized description of the standard human variant nomenclature in Extended Backus-Naur Form"],"prefix":"10.1186","volume":"12","author":[{"given":"Jeroen FJ","family":"Laros","sequence":"first","affiliation":[]},{"given":"Andr\u00e9","family":"Blavier","sequence":"additional","affiliation":[]},{"given":"Johan T","family":"den Dunnen","sequence":"additional","affiliation":[]},{"given":"Peter EM","family":"Taschner","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2011,7,5]]},"reference":[{"key":"4615_CR1","doi-asserted-by":"publisher","first-page":"181","DOI":"10.1002\/humu.10262","volume":"22","author":"JT den Dunnen","year":"2003","unstructured":"den Dunnen JT, Paalman MH: Standardizing mutation nomenclature: why bother?. Hum Mutat. 2003, 22: 181-182. 10.1002\/humu.10262.","journal-title":"Hum Mutat"},{"key":"4615_CR2","unstructured":"The Human Genome Variation Society Nomenclature for the description of sequence variants. [http:\/\/www.hgvs.org\/mutnomen\/]"},{"key":"4615_CR3","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1002\/(SICI)1098-1004(1998)11:1<1::AID-HUMU1>3.0.CO;2-O","volume":"11","author":"SE Antonarakis","year":"1998","unstructured":"Antonarakis SE, Nomenclature Working Group: Recommendations for a nomenclature system for human gene mutations. Hum Mutat. 1998, 11: 1-3.","journal-title":"Hum Mutat"},{"key":"4615_CR4","doi-asserted-by":"publisher","first-page":"7","DOI":"10.1002\/(SICI)1098-1004(200001)15:1<7::AID-HUMU4>3.0.CO;2-N","volume":"15","author":"JT den Dunnen","year":"2000","unstructured":"den Dunnen JT, Antonarakis SE: Mutation nomenclature extensions and suggestions to describe complex mutations: a discussion. 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