Adverb
In a constitutive manner.
Source: Webster's dictionaryA mutation that causes certain tyrosine kinases to be constitutively active has been associated with several cancers. Source: Internet
However, the COX enzymes are expressed constitutively in some areas of the CNS, meaning that even limited penetration may cause adverse effects such as somnolence and dizziness. Source: Internet
Methylation of lysine 9 of histone H3 has long been associated with constitutively transcriptionally silent chromatin (constitutive heterochromatin ). Source: Internet
COX-1 is a constitutively expressed enzyme with a "house-keeping" role in regulating many normal physiological processes. Source: Internet
The abnormal FIG-ROS fusion protein has constitutively active kinase activity that causes oncogenic transformation (a transformation from normal cells to cancer cells). Source: Internet
They can cause cancer by turning the receptor permanently on (constitutively), even without signals from outside the cell. Source: Internet