HTTP 404 - Invalid Identifier

The identifier HEXIM1 does not match the pattern for uniprot:

^([A-N,R-Z][0-9]([A-Z][A-Z, 0-9][A-Z, 0-9][0-9]){1,2})|([O,P,Q][0-9][A-Z, 0-9][A-Z, 0-9][A-Z, 0-9][0-9])(\.\d+)?$

If you believe this judgement to be erroneous but don't know how it should be updated, please let us know via the GitHub Issue tracker.

If you know how the pattern should be updated, do the following: