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  1. Book ; Thesis: Einfluss des Serotoninagonisten m-Chlorophenylpiperazin (mCPP) auf Befindlichkeit und Vitalparameter bei gesunden männlichen Probanden

    Stephan, Ralf

    2003  

    Author's details vorgelegt von Ralf Stephan
    Language German
    Size 63 S. : graph. Darst.
    Publishing country Germany
    Document type Book ; Thesis
    Thesis / German Habilitation thesis Bonn, Univ., Diss., 2003
    HBZ-ID HT013890455
    Database Catalogue ZB MED Medicine, Health

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  2. Article: ChatGPT usage in the Reactome curation process.

    Tiwari, Krishna / Matthews, Lisa / May, Bruce / Shamovsky, Veronica / Orlic-Milacic, Marija / Rothfels, Karen / Ragueneau, Eliot / Gong, Chuqiao / Stephan, Ralf / Li, Nancy / Wu, Guanming / Stein, Lincoln / D'Eustachio, Peter / Hermjakob, Henning

    bioRxiv : the preprint server for biology

    2023  

    Abstract: Appreciating the rapid advancement and ubiquity of generative AI, particularly ChatGPT, a chatbot using large language models like GPT, we endeavour to explore the potential application of ChatGPT in the data collection and annotation stages within the ... ...

    Abstract Appreciating the rapid advancement and ubiquity of generative AI, particularly ChatGPT, a chatbot using large language models like GPT, we endeavour to explore the potential application of ChatGPT in the data collection and annotation stages within the Reactome curation process. This exploration aimed to create an automated or semi-automated framework to mitigate the extensive manual effort traditionally required for gathering and annotating information pertaining to biological pathways, adopting a Reactome "reaction-centric" approach. In this pilot study, we used ChatGPT/GPT4 to address gaps in the pathway annotation and enrichment in parallel with the conventional manual curation process. This approach facilitated a comparative analysis, where we assessed the outputs generated by ChatGPT against manually extracted information. The primary objective of this comparison was to ascertain the efficiency of integrating ChatGPT or other large language models into the Reactome curation workflow and helping plan our annotation pipeline, ultimately improving our protein-to-pathway association in a reliable and automated or semi-automated way. In the process, we identified some promising capabilities and inherent challenges associated with the utilisation of ChatGPT/GPT4 in general and also specifically in the context of Reactome curation processes. We describe approaches and tools for refining the output given by ChatGPT/GPT4 that aid in generating more accurate and detailed output.
    Language English
    Publishing date 2023-11-08
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2023.11.08.566195
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Book: Im Mähdrusch Kosten senken

    Stephan, Ralf

    (Bauernzeitung ; Entscheidungshilfen für Fach- und Führungskräfte ; 2003,2)

    2003  

    Author's details [Red.: Ralf Stephan]
    Series title Bauernzeitung
    Entscheidungshilfen für Fach- und Führungskräfte ; 2003,2
    Language German
    Size 43 S, Ill., graph. Darst, 30 cm
    Publisher Dt. Bauernverl
    Publishing place Berlin
    Document type Book
    Database Johann Heinrich von Thünen-Institut, Federal Research Institute for Rural Areas, Forestry and Fisheries

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  4. Article ; Online: Pathway-based, reaction-specific annotation of disease variants for elucidation of molecular phenotypes.

    Orlic-Milacic, Marija / Rothfels, Karen / Matthews, Lisa / Wright, Adam / Jassal, Bijay / Shamovsky, Veronica / Trinh, Quang / Gillespie, Marc E / Sevilla, Cristoffer / Tiwari, Krishna / Ragueneau, Eliot / Gong, Chuqiao / Stephan, Ralf / May, Bruce / Haw, Robin / Weiser, Joel / Beavers, Deidre / Conley, Patrick / Hermjakob, Henning /
    Stein, Lincoln D / D'Eustachio, Peter / Wu, Guanming

    Database : the journal of biological databases and curation

    2024  Volume 2024

    Abstract: Germline and somatic mutations can give rise to proteins with altered activity, including both gain and loss-of-function. The effects of these variants can be captured in disease-specific reactions and pathways that highlight the resulting changes to ... ...

    Abstract Germline and somatic mutations can give rise to proteins with altered activity, including both gain and loss-of-function. The effects of these variants can be captured in disease-specific reactions and pathways that highlight the resulting changes to normal biology. A disease reaction is defined as an aberrant reaction in which a variant protein participates. A disease pathway is defined as a pathway that contains a disease reaction. Annotation of disease variants as participants of disease reactions and disease pathways can provide a standardized overview of molecular phenotypes of pathogenic variants that is amenable to computational mining and mathematical modeling. Reactome (https://reactome.org/), an open source, manually curated, peer-reviewed database of human biological pathways, in addition to providing annotations for >11 000 unique human proteins in the context of ∼15 000 wild-type reactions within more than 2000 wild-type pathways, also provides annotations for >4000 disease variants of close to 400 genes as participants of ∼800 disease reactions in the context of ∼400 disease pathways. Functional annotation of disease variants proceeds from normal gene functions, described in wild-type reactions and pathways, through disease variants whose divergence from normal molecular behaviors has been experimentally verified, to extrapolation from molecular phenotypes of characterized variants to variants of unknown significance using criteria of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology. Reactome's data model enables mapping of disease variant datasets to specific disease reactions within disease pathways, providing a platform to infer pathway output impacts of numerous human disease variants and model organism orthologs, complementing computational predictions of variant pathogenicity. Database URL: https://reactome.org/.
    MeSH term(s) Humans ; Phenotype ; Molecular Sequence Annotation ; Databases, Genetic ; Disease/genetics
    Language English
    Publishing date 2024-05-07
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2496706-3
    ISSN 1758-0463 ; 1758-0463
    ISSN (online) 1758-0463
    ISSN 1758-0463
    DOI 10.1093/database/baae031
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: The LOTUS initiative for open knowledge management in natural products research.

    Rutz, Adriano / Sorokina, Maria / Galgonek, Jakub / Mietchen, Daniel / Willighagen, Egon / Gaudry, Arnaud / Graham, James G / Stephan, Ralf / Page, Roderic / Vondrášek, Jiří / Steinbeck, Christoph / Pauli, Guido F / Wolfender, Jean-Luc / Bisson, Jonathan / Allard, Pierre-Marie

    eLife

    2022  Volume 11

    Abstract: Contemporary bioinformatic and chemoinformatic capabilities hold promise to reshape knowledge management, analysis and interpretation of data in natural products research. Currently, reliance on a disparate set of non-standardized, insular, and ... ...

    Abstract Contemporary bioinformatic and chemoinformatic capabilities hold promise to reshape knowledge management, analysis and interpretation of data in natural products research. Currently, reliance on a disparate set of non-standardized, insular, and specialized databases presents a series of challenges for data access, both within the discipline and for integration and interoperability between related fields. The fundamental elements of exchange are referenced structure-organism pairs that establish relationships between distinct molecular structures and the living organisms from which they were identified. Consolidating and sharing such information via an open platform has strong transformative potential for natural products research and beyond. This is the ultimate goal of the newly established LOTUS initiative, which has now completed the first steps toward the harmonization, curation, validation and open dissemination of 750,000+ referenced structure-organism pairs. LOTUS data is hosted on Wikidata and regularly mirrored on https://lotus.naturalproducts.net. Data sharing within the Wikidata framework broadens data access and interoperability, opening new possibilities for community curation and evolving publication models. Furthermore, embedding LOTUS data into the vast Wikidata knowledge graph will facilitate new biological and chemical insights. The LOTUS initiative represents an important advancement in the design and deployment of a comprehensive and collaborative natural products knowledge base.
    MeSH term(s) Biological Products ; Computational Biology ; Databases, Factual ; Knowledge ; Knowledge Management
    Chemical Substances Biological Products
    Language English
    Publishing date 2022-05-26
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2687154-3
    ISSN 2050-084X ; 2050-084X
    ISSN (online) 2050-084X
    ISSN 2050-084X
    DOI 10.7554/eLife.70780
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Using the Reactome Database.

    Rothfels, Karen / Milacic, Marija / Matthews, Lisa / Haw, Robin / Sevilla, Cristoffer / Gillespie, Marc / Stephan, Ralf / Gong, Chuqiao / Ragueneau, Eliot / May, Bruce / Shamovsky, Veronica / Wright, Adam / Weiser, Joel / Beavers, Deidre / Conley, Patrick / Tiwari, Krishna / Jassal, Bijay / Griss, Johannes / Senff-Ribeiro, Andrea /
    Brunson, Timothy / Petryszak, Robert / Hermjakob, Henning / D'Eustachio, Peter / Wu, Guanming / Stein, Lincoln

    Current protocols

    2023  Volume 3, Issue 4, Page(s) e722

    Abstract: Pathway databases provide descriptions of the roles of proteins, nucleic acids, lipids, carbohydrates, and other molecular entities within their biological cellular contexts. Pathway-centric views of these roles may allow for the discovery of unexpected ... ...

    Abstract Pathway databases provide descriptions of the roles of proteins, nucleic acids, lipids, carbohydrates, and other molecular entities within their biological cellular contexts. Pathway-centric views of these roles may allow for the discovery of unexpected functional relationships in data such as gene expression profiles and somatic mutation catalogues from tumor cells. For this reason, there is a high demand for high-quality pathway databases and their associated tools. The Reactome project (a collaboration between the Ontario Institute for Cancer Research, New York University Langone Health, the European Bioinformatics Institute, and Oregon Health & Science University) is one such pathway database. Reactome collects detailed information on biological pathways and processes in humans from the primary literature. Reactome content is manually curated, expert-authored, and peer-reviewed and spans the gamut from simple intermediate metabolism to signaling pathways and complex cellular events. This information is supplemented with likely orthologous molecular reactions in mouse, rat, zebrafish, worm, and other model organisms. © 2023 The Authors. Current Protocols published by Wiley Periodicals LLC. Basic Protocol 1: Browsing a Reactome pathway Basic Protocol 2: Exploring Reactome annotations of disease and drugs Basic Protocol 3: Finding the pathways involving a gene or protein Alternate Protocol 1: Finding the pathways involving a gene or protein using UniProtKB (SwissProt), Ensembl, or Entrez gene identifier Alternate Protocol 2: Using advanced search Basic Protocol 4: Using the Reactome pathway analysis tool to identify statistically overrepresented pathways Basic Protocol 5: Using the Reactome pathway analysis tool to overlay expression data onto Reactome pathway diagrams Basic Protocol 6: Comparing inferred model organism and human pathways using the Species Comparison tool Basic Protocol 7: Comparing tissue-specific expression using the Tissue Distribution tool.
    MeSH term(s) Humans ; Animals ; Mice ; Rats ; Metabolic Networks and Pathways ; Zebrafish/metabolism ; Databases, Protein ; Proteins/metabolism ; Signal Transduction
    Chemical Substances Proteins
    Language English
    Publishing date 2023-04-13
    Publishing country United States
    Document type Journal Article
    ISSN 2691-1299
    ISSN (online) 2691-1299
    DOI 10.1002/cpz1.722
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Pathway-based, reaction-specific annotation of disease variants for elucidation of molecular phenotypes.

    Orlic-Milacic, Marija / Rothfels, Karen / Matthews, Lisa / Wright, Adam / Jassal, Bijay / Shamovsky, Veronica / Trinh, Quang / Gillespie, Marc / Sevilla, Cristoffer / Tiwari, Krishna / Ragueneau, Eliot / Gong, Chuqiao / Stephan, Ralf / May, Bruce / Haw, Robin / Weiser, Joel / Beavers, Deidre / Conley, Patrick / Hermjakob, Henning /
    Stein, Lincoln D / D'Eustachio, Peter / Wu, Guanming

    bioRxiv : the preprint server for biology

    2023  

    Abstract: Disease variant annotation in the context of biological reactions and pathways can provide a standardized overview of molecular phenotypes of pathogenic mutations that is amenable to computational mining and mathematical modeling. Reactome, an open ... ...

    Abstract Disease variant annotation in the context of biological reactions and pathways can provide a standardized overview of molecular phenotypes of pathogenic mutations that is amenable to computational mining and mathematical modeling. Reactome, an open source, manually curated, peer-reviewed database of human biological pathways, provides annotations for over 4000 disease variants of close to 400 genes in the context of ∼800 disease reactions constituting ∼400 disease pathways. Functional annotation of disease variants proceeds from normal gene functions, through disease variants whose divergence from normal molecular behaviors has been experimentally verified, to extrapolation from molecular phenotypes of characterized variants to variants of unknown significance using criteria of the American College of Medical Genetics and Genomics (ACMG). Reactome's pathway-based, reaction-specific disease variant dataset and data model provide a platform to infer pathway output impacts of numerous human disease variants and model organism orthologs, complementing computational predictions of variant pathogenicity.
    Language English
    Publishing date 2023-10-21
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2023.10.18.562964
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: The Reactome Pathway Knowledgebase 2024.

    Milacic, Marija / Beavers, Deidre / Conley, Patrick / Gong, Chuqiao / Gillespie, Marc / Griss, Johannes / Haw, Robin / Jassal, Bijay / Matthews, Lisa / May, Bruce / Petryszak, Robert / Ragueneau, Eliot / Rothfels, Karen / Sevilla, Cristoffer / Shamovsky, Veronica / Stephan, Ralf / Tiwari, Krishna / Varusai, Thawfeek / Weiser, Joel /
    Wright, Adam / Wu, Guanming / Stein, Lincoln / Hermjakob, Henning / D'Eustachio, Peter

    Nucleic acids research

    2023  Volume 52, Issue D1, Page(s) D672–D678

    Abstract: The Reactome Knowledgebase (https://reactome.org), an Elixir and GCBR core biological data resource, provides manually curated molecular details of a broad range of normal and disease-related biological processes. Processes are annotated as an ordered ... ...

    Abstract The Reactome Knowledgebase (https://reactome.org), an Elixir and GCBR core biological data resource, provides manually curated molecular details of a broad range of normal and disease-related biological processes. Processes are annotated as an ordered network of molecular transformations in a single consistent data model. Reactome thus functions both as a digital archive of manually curated human biological processes and as a tool for discovering functional relationships in data such as gene expression profiles or somatic mutation catalogs from tumor cells. Here we review progress towards annotation of the entire human proteome, targeted annotation of disease-causing genetic variants of proteins and of small-molecule drugs in a pathway context, and towards supporting explicit annotation of cell- and tissue-specific pathways. Finally, we briefly discuss issues involved in making Reactome more fully interoperable with other related resources such as the Gene Ontology and maintaining the resulting community resource network.
    MeSH term(s) Humans ; Knowledge Bases ; Metabolic Networks and Pathways/genetics ; Proteome/genetics ; Signal Transduction
    Chemical Substances Proteome
    Language English
    Publishing date 2023-11-08
    Publishing country England
    Document type Journal Article
    ZDB-ID 186809-3
    ISSN 1362-4962 ; 1362-4954 ; 0301-5610 ; 0305-1048
    ISSN (online) 1362-4962 ; 1362-4954
    ISSN 0301-5610 ; 0305-1048
    DOI 10.1093/nar/gkad1025
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Conference proceedings: The LOTUS initiative for knowledge sharing in Natural Products research

    Rutz, Adriano / Sorokina, Maria / Galgonek, Jakub / Mietchen, Daniel / Willighagen, Egon / Gaudry, Arnaud / Graham, James G. / Stephan, Ralf / Page, Roderic / Vondrášek, Jiří / Steinbeck, Christoph / Pauli, Guido F. / Wolfender, Jean-Luc / Bisson, Jonathan / Allard, Pierre-Marie

    Planta Medica

    2021  Volume 87, Issue 15

    Event/congress GA - 69th Annual Meeting 2021, Virtual conference, Bonn, Germany, 2021-09-05
    Language English
    Publishing date 2021-12-01
    Publisher Georg Thieme Verlag
    Publishing place Stuttgart ; New York
    Document type Article ; Conference proceedings
    ZDB-ID 123545-x
    ISSN 1439-0221 ; 0032-0943
    ISSN (online) 1439-0221
    ISSN 0032-0943
    DOI 10.1055/s-0041-1736777
    Database Thieme publisher's database

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  10. Article: Das Zusammenwachsen der Rentenversicherungen in West und Ost: eine Zwischenbilanz im zehnten Jahr der Deutschen Einheit

    Stephan, Ralf-Peter

    Die Angestellten-Versicherung : Zeitschrift der Bundesversicherungsanstalt für Angestellte ; amtliches Veröffentlichungsblatt Vol. 46, No. 12 , p. 546-556

    1999  Volume 46, Issue 12, Page(s) 546–556

    Author's details von Ralf-Peter Stephan
    Keywords Gesetzliche Rentenversicherung ; Alte Bundesländer ; Neue Bundesländer ; Deutschland
    Language German
    Publisher Bundesversicherungsanstalt
    Publishing place Berlin
    Document type Article
    ZDB-ID 279-3
    Database ECONomics Information System

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