It is known that generally a gene is considered to be expressed if its expression value, measured as FPKM or TPM, is more than 0.5 (https://www.ebi.ac.uk/gxa/help/index.html, in the paragraph ''Baseline expression results'). I'm just wondering what is this cutoff when the gene expression is measured as UMI (unique molecular identifier). I did not find specifically this information, and I am working with a dataset produced by Cell Ranger (10x Genomics). I would like to know if there is an expression cutoff for UMI or if this measure can be converted into TPM. Thank you in advance!