Lowercase sequence ontology identifiers do not work

[sveinugu]

For example: "SO:0000991" resolves, but not "so:0000991", even though the user interface suggests a lowercase namespace is fine. I believe the problem is that the namespace is included in the "Local Unique Identifier (LUI) pattern":

^SO:\d{7}$

in the Sequence ontology registry record. Removing the SO: part should probably fix it.

[renatocjn]

Hello @sveinugu,

While identifiers.org default behaviour is to be case insensitive on prefix resolution, some collections enforce case sensitivity. The SO namespace is an example of this, so it is marked with as "prefix embedded in LUI" and the LUI pattern includes the upper cased prefix.

Please see the links below for confirmation:

• https://www.ebi.ac.uk/ols4/ontologies/so/classes/http%253A%252F%252Fpurl.obolibrary.org%252Fobo%252FSO_0000991
• https://ontobee.org/ontology/SO?iri=http://purl.obolibrary.org/obo/SO_0000991

Could you let me know which user interface component you refer to?

[sveinugu]

Right.

In that case, perhaps the prefix shown in the user interface should change to uppercase? One example is shown in the "Prefix" column in this table:

https://registry.identifiers.org/registry?query=sequence+ontology

Also: typing "so:" in the "Resolve a Compact Identifier" box highlights the sequence ontology, with the prefix shown in lowercase, while correctly typing "SO:" does not highlight the sequence ontology (however, resolution still works).

Same with the "Gene Ontology" and probably other case-sensitive namespaces.

[renatocjn]

I see where it's confusing. I will look into this to see what we can do.