The database details a comprehensive IUBMB approved classification system for membrane transport proteins known as the Transporter Classification (TC) system. The TC system is analogous to the Enzyme Commission (EC) system for classification of enzymes, but incorporates phylogenetic information additionally.

Prefix
tcdb
Alternative Prefixes
TC
Keywords
protein protein family/group databases structure
Links
Homepage
Publications
2021 The Transporter Classification Database (TCDB): 2021 update
2015 The Transporter Classification Database (TCDB): recent advances
2013 The transporter classification database
2008 The Transporter Classification Database: recent advances
2006 TCDB: the Transporter Classification Database for membrane transport protein analyses and information
Identifier Standards
Pattern for Local Unique Identifiers

Local identifiers in Transporter Classification Database should match this regular expression:
^\d+(\.[A-Z])?(\.\d+)?(\.\d+)?(\.\d+)?$

Example Local Unique Identifier
5.A.1.1.1   Resolve
Pattern for CURIES

Compact URIs (CURIEs) constructed from Transporter Classification Database should match this regular expression:
^tcdb:\d+(\.[A-Z])?(\.\d+)?(\.\d+)?(\.\d+)?$

Example CURIE
tcdb:5.A.1.1.1
Contacts
Contact
Missing Contact
Ontology

A summary of the relations in the Bioregistry schema can be found here.

In Collection (1)
Synapse.org external links
Mappings to External Registries

Mappings from records in Bioregistry to external registries comprises the metaregistry. This resource has 9 mappings to external registries with 6 unique external prefixes.

Registry Name Registry Metaprefix External Prefix Curate
BioContext biocontext TCDB
EDAM EDAM Ontology logo edam 2756
GO Gene Ontology Registry logo go TC
Identifiers.org Identifiers.org logo miriam tcdb
N2T Name-to-Thing logo n2t tcdb
Pathguide Pathguide logo pathguide 104
Prefix Commons Prefix Commons logo prefixcommons tcdb
UniProt UniProt Cross-ref database logo uniprot DB-0135
Wikidata Wikidata Property logo wikidata P7260
Providers

A provider turns a local unique identifiers from a resource into a URI. Many providers are also resolvable as URLs (i.e., they can be used in a web browser).

The local unique identifier 5.A.1.1.1 is used to demonstrate the providers available for Transporter Classification Database. Some providers may use a different example, which is displayed in the table below. A guide for curating additional providers can be found here.

Provider Name Provider Code URI
Transporter Classification Database tcdb http://www.tcdb.org/search/result.php?tc=5.A.1.1.1
Bioregistry bioregistry https://bioregistry.io/tcdb:5.A.1.1.1
Identifiers.org miriam https://identifiers.org/tcdb:5.A.1.1.1
Name-to-Thing n2t https://n2t.net/tcdb:5.A.1.1.1
Extra Providers

Additional providers curated in the Bioregistry are listed here. These are typically inherited from Identifiers.org or Prefix Commons, and need extra curation.

Provider Name Provider Code URL
Bio2RDF bio2rdf http://bio2rdf.org/tcdb:5.A.1.1.1