could no see any data link to RNA expression. Is it a ‘bug’ ?
The result you are observing is the expected behaviour although there is a long explanation why this happens.
We suspect your querying a high-level term in the cancer branch. When looking at a disease evidence for all the targets it’s propagated up in the ontology. For example, if you are looking at cancer, some of the blue cells might be the result of propagating information up in the ontology from descendant terms like breast cancer. More info in: Target - disease associations - Open Targets Platform Documentation
However, we observed RNA expression evidence can be very promiscuous and sometimes pollute the associations of higher level terms. For this reason, we blocked the the propagation of evidence for this data type in particular. If visiting cancer, and there is no direct evidence linking the term cancer with specific targets, the cell will be white.
Apologies because this behaviour was not made very clear in our documentation. We have added a disclaimer in the respective section.
many tks for your answer, and I ‘think’ I understand indeed, it was rather large ontology query: ‘neoplasm’