Keeping Cofactor IDs permanent

A permanent ID is a value that will always represent the same entity, event, or concept. The ID remains valid even if the country changes its name, the street gets split into multiple segments. The ID will still point to the original concept.

As IDs are getting used by more and more data providers, multiple IDs may be discovered to represent the same concept, and should be merged. Yet, both IDs must remain, and point to the same concept.

Data publishers should always be aware of this feature of Cofactor IDs, and should try as much as possible to maintain ID continuity.

Cofactor ID resolver

The Cofactor ID resolution service is available at One needs to follow the Cofactor URI of the entity as it is referenced in semantic applications.

Note that you can use Cofactor Search to perform the reverse task—finding the Cofactor ID of an entity of interest.

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Sequence Logo is an online tool for creating sequence logos. Paste your multiple sequence alignment and the sequence logo is generated automatically. Use Sequence Logo to easily create vector sequence logo graphs.

Please refer to the Sequence Logo manual for the sequence logo parameters and configuration. Sequence Logo supports multiple color schemes and download formats.

Sequence Logo is sequence logo generator. Sequence logos visualize protein and nucleic acid motifs and patterns identified through multiple sequence alignment.

Te Reo Maps is an online interactive Maori mapping service. All labels in Te Reo Maps are in Maori, making it the first interactive Maori map. Te Reo Maps is the world map, with all countries and territories translated into Maori.

Please refer to the list of countries in Maori for the Maori translations of country names. The list includes all UN members and sovereign territories.