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FerrDb V2 contains 1001 ferroptosis regulators and 143 ferroptosis-disease associations manually curated from 3288 articles. Specifically, there are 621 gene regulators, of which 264 are drivers, 238 are suppressors, 9 are markers, and 110 are unclassified genes; and there are 380 substance regulators, with 201 inducers and 179 inhibitors. Compared to FerrDb V1, curated articles increase by > 300%, ferroptosis regulators increase by 175%, and ferroptosis-disease associations increase by 50.5%. Circular RNA and pseudogene are novel regulators in FerrDb V2, and the percentage of non-coding RNA increases from 7.3% to 13.6%. External gene-related data were integrated, enabling thought-provoking and gene-oriented analysis in FerrDb V2.

China National GeneBank DataBase (CNGBdb) is an official partner of the GISAID Initiative. It provides access to EpiCoV and features the most complete collection of hCoV-19 genome sequences along with related clinical and epidemiological data. With the data from this database scientific researchers can construct a virus phylogenetic tree to reveal the characteristics of the pathogen, and provide effective references for the study and analysis of the evolutionary source and pathological mechanism of the novel coronavirus.

SABIO-RK is a database for biochemical reactions, their kinetic equations with their parameters, and the experimental conditions under which these parameters were measured.

Dilibri is the digitized collection of regional studies literature related to Rhineland-Palatinate and of imprints preserved at Rhineland-Palatine libraries. The interface is available in English, German or French with the manuscripts being a mixture of French and German.

MDM-Portal (Medical Data-Models) is a meta-data registry for creating, analysing, sharing and reusing medical forms, developed by the Institute of Medical Informatics, Heidelberg University Hospital in Germany. see also https://doi.org/10.1055/s-0044-1786839 Electronic forms for documentation of patient data are an integral part within the workflow of physicians. A huge amount of data is collected either through routine documentation forms (EHRs) for electronic health records or as case report forms (CRFs) for clinical trials. This raises major scientific challenges for health care, since different health information systems are not necessarily compatible with each other and thus information exchange of structured data is hampered. Software vendors provide a variety of individual documentation forms according to their standard contracts, which function as isolated applications. Furthermore, free availability of those forms is rarely the case. Currently less than 5 % of medical forms are freely accessible. Based on this lack of transparency harmonization of data models in health care is extremely cumbersome, thus work and know-how of completed clinical trials and routine documentation in hospitals are hard to be re-used. The MDM-Portal serves as an infrastructure for academic (non-commercial) medical research to contribute a solution to this problem. It already contains more than 25,000 system-independent forms (CDISC ODM Format, www.cdisc.org, Operational Data Model) with more than 600,000 data-elements. This enables researchers to view, discuss, download and export forms in most common technical formats such as PDF, CSV, Excel, SQL, SPSS, R, etc. A growing user community will lead to a growing database of medical forms. In this matter, we would like to encourage all medical researchers to register and add forms and discuss existing forms.

The ETOX database allows access to effects information from aquatic and terrestrial ecotoxicology. Furthermore, ETOX contains information on various national and international environmental quality guidelines, targets, standards, criteria, and limit values. In focus are substances which are relevant for assessment of surface water pollution to trigger the development of environmental quality standards according to Water Framework Directive 60/2000/EC.