The phrase "active in nuclei of" is correct and usable in written English.
It can be used in scientific or academic contexts, particularly in discussions related to biology, chemistry, or physics, where the activity within the nuclei of cells or atoms is being described.
Example: "The researchers found that the protein was active in nuclei of the cells, influencing gene expression."
Alternatives: "functioning within the nuclei of" or "operating in the nuclei of".
We evaluated the presence of Ras bound to Raf-RBD (active Ras) in nuclei of human mesangial cells and human tumoral HeLa cells, using an ELISA method (Ras GTPase Chemi ELISA, Active Motif, Rixensart, Belgium); this kit only detected Ras activation in human cells.
We have observed (by immuno-fluorescence) a higher level of β-catenin (active) in the nucleus of MDA-MB231 TNBC cells as compared to non-TNBC (MCF7 and BT474) cell lines (data not shown).
SIRT6 is active in the nucleus of the cell and SIRT7 in the nucleolus, a compartment of the nucleus reserved for the assembly of ribosomes, the cell's protein-making machines.
In this study we show that a significant amount of Net1 is indeed active in the nucleus of different cell types (Figure 1), contrary to studies that assumed nuclear Net1 was biologically inactive.
UVR8 seems to be mainly active in the nucleus of plant cells.
Two patterns of the FRET signal were detected in transcriptionally active nuclei of 2-cell embryos for the pairs: actin-Y14, actin-Aly/REF, and actin-NXF1/TAP.
On the level of anterior commissure, 1b promoter is active in the bed nucleus of anterior commissure (BAC, Fig. 2h); 1a transcript is prevalent in the bed nuclei of stria terminalis (BST, Fig. 2f, Fig. S1f) and in the core of the nucleus accumbens (AcbC, Fig. 2b).
The released N-terminal protein fragment was found to be transcriptionally active in the nucleus after thrombin stimulation of endothelial cells [ 34], whereas the carboxy-terminal fragment (CTF) has not been evaluated further.
Additionally, 1b promoter is prevalently active in the central nucleus of amygdala that is commonly referred to as the central part of the limbic structures (Heimer and Van Hoesen 2006).
Histone H3 acetylation at K9 or K14, which in Stylonychia occurs in the transcriptionally highly active macronuclei (M), was detected in nuclei (n) of Euglena and in most undistinguished stages observed in Trichomonas.
