I am trying to find an example of a unitary pseudogene whose
promoter is known to be mutated as well and therefore the gene is
definitely non-functional. I can find articles stating there are many
examples of unitary pseudogenes in humans (e.g. Vitamin C) but none
seem to mention the promoter. Any thoughts?
Our analyses compiled a number of activity features associated with pseudogenes (e.g. transcription, presence of functional Pol2 and TF binding sites in the upstream region, presence of open chromatin) that are available in online. Please see https://www.ncbi.nlm.nih.gov/pubmed/22951037 (http://pseudogene.org/psidr/ ) and https://www.ncbi.nlm.nih.gov/pubmed/25157146 (http://pseudogene.org/psicube/) for the functional characterisation of pseudogenes. In particular the unitary pseudogenes that do not have transcription, Pol2 and TF binding sites should be the ones to look at and to check the conservation or not of the promoter region.