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MolBiC provides information about cell-based molecular bioactivities along with associated compounds, proteins and cell lines. This prefix maintains identifiers for chemical compounds with experimentally validated bioactivity in cellular contexts.

MolBiC provides information about cell-based molecular bioactivities along with associated compounds, proteins and cell lines. This prefix maintains identifiers for proteins that serve as molecular targets in cell-based bioactivity measurements.

Identifiers correspond to molecular glue compounds in the MolGlueDB which is a free and open-access online database dedicated to the collection and integration of molecular glue compound information.

The primary goal of this ontology is to standardize the representation of molecular simulation data, processes, and methodologies across disparate simulation platforms, engines (e.g., GROMACS, AMBER, NAMD), and analysis tools, while ensuring these terms are interoperable with existing life sciences ontologies

A hierarchical classifications of subjects in mathematics

The Molecular Signatures Database (MSigDB) is a collection of annotated gene sets for use with GSEA software. From this web site, you can

The Unified Medical Language System® (UMLS®) Metathesaurus (MTH) was developed and is maintained by the U.S. National Library of Medicine (NLM). MTH contains concept names, attributes, relationships, and other data that were created by NLM to facilitate construction of the UMLS Metathesaurus.

MultiCellDS is data standard for multicellular simulation, experimental, and clinical data. A digital cell line is a hierarchical organization of quantitative phenotype data for a single biological cell line, including the microenvironmental context of the measurements and essential metadata.

The CDC's National Center for Immunization and Respiratory Diseases ([NCIRD](https://www.cdc.gov/ncird/)) developed and maintains HL7 Table 0227, Manufacturers of Vaccines (MVX). It includes both active and inactive manufacturers of vaccines in the US. Inactive MVX codes allow transmission of historical immunization records. When [MVX code is paired with a CVX code](https://www2a.cdc.gov/vaccines/iis/iisstandards/vaccines.asp?rpt=tradename) (vaccine administered code), the specific trade named vaccine may be indicated.

The Human Metabolome Gene/Protein Database (MGP) of metabolome-related genes and proteins contains data for over 7300 genes and over 15,500 proteins. [from homepage]

The main objective of RefMet is to provide a standardized reference nomenclature for both discrete metabolite structures and metabolite species identified by spectroscopic techniques in metabolomics experiments. [from homepage]

The Metabolomics Workbench Metabolite Database contains structures and annotations of biologically relevant metabolites. As of 03/23/26, the database contains 175556 entries, collected from various public sources. [from homepage]

Mycobrowser is a resource that provides both in silico generated and manually reviewed information within databases dedicated to the complete genomes of Mycobacterium tuberculosis, Mycobacterium leprae, Mycobacterium marinum and Mycobacterium smegmatis. This collection references Mycobacteria leprae information.

An ARK resolver as well as resolver built with common prefixes as in Identifiers.org

The nomenclature used for named reactions in text mining software from NextMove. While it's proprietary, there are a few publications listing parts. 487/1,855 have mappings to the Reaction Ontology (RXNO).

Identifiers for biospecimens used in experiments that investigate biological and health responses of terrestrial life to spaceflight

Identifiers for space-related data from experiments that investigate biological and health responses of terrestrial life to spaceflight

Identifiers for hardware used in experiments that investigate biological and health responses of terrestrial life to spaceflight

Identifiers for missions associated with experiments that investigate biological and health responses of terrestrial life to spaceflight

Identifiers for payloads associated with experiments that investigate biological and health responses of terrestrial life to spaceflight

Identifiers for space-related data from studies that investigate biological and health responses of terrestrial life to spaceflight