The phrase "activity in the cell" is correct and usable in written English.
It can be used in scientific or biological contexts to refer to processes or functions occurring within a cell.
Example: "The study focused on the activity in the cell during the process of mitosis."
Alternatives: "cellular activity" or "processes within the cell."
The upregulation of the p53 target Trp53inp1 (Tomasini et al., 2003) is indicative of increased p53 transcriptional activity in the cell and activation of the p53 pathway.
We next investigated the role of p65 activity in the cell death programme activated by etoposide.
Calpain Activity Assay kit involved fluorometric detection of protease calpain activity in the cell, in which only activated calpain in cytosol was detected (Abcam, Cambridge, MA).
The data show that INP-AldO is active as judged by the proper FAD incorporation and oxidase activity in the cell extract, soluble fraction, and total membrane fraction.
The chitinase production was monitored by measuring chitinase activity in the cell free broth by using colloidal chitin as substrate.
Each FP6 had the same specific activity in the cell growth assay with or without endoglycosidase digestion.
The lack of activity in the cell filtrates for the strains that did not show reduction of silver nitrate supports the hypothesis of enzyme based biosynthesis.
We also tested if the overexpression of FDC1 would result cinnamic acid decarboxylase activity in the cell free extract however no activity was detected.
In contrast, a similar compound with an acetyl group at N1 of the pyrazoline ring (6g) showed poor activity in the cell lines studied.
In vivo experiments utilizing Cre variants also often require in vitro characterization and some applications involve transfection of purified enzyme to achieve transient activity in the cell.
The conjugate, upon photoactivation, increases alkaline phosphatase (ALP) activity in the cell membrane and calcification (mineralization) of hASCs on days 7 and 14 respectively.
