The phrase "active in the cell" is correct and usable in written English.
It can be used in scientific or biological contexts to describe something that is functioning or engaged within a cell, such as a protein or enzyme.
Example: "The enzyme is active in the cell, facilitating various biochemical reactions necessary for metabolism."
Alternatives: "functioning within the cell" or "operating in the cell".
Other proteins active in the cell nucleus regulate the activity of genes that, when mutated, lead to cancer.
The chips reveal all the genes active in the cell.
If the relevant molecular cascades are simply not active in the cell type assessed, differences in expression may be meaningless.
To rule out the possibility that BrdU+ cells were apoptotic, we examined whether or not these cells also expressed Ki67, a nuclear protein expressed by cells that are active in the cell cycle.
Previously we have drawn attention to the implications of the chemically friable nature of DNA under physiological conditions [18] and subsequently described genomic instability as a stochastic epigenetic phenotypic transition between attractors, essentially specific patterns of gene products active in the cell, representing phenotype [19].
This transcriptional strand bias could be indicative of exon-specific repair processes that are active in the cell.
Three genes, known as oct4, sox2 and nanog, are known to be particularly active in the cells and are regarded as a hallmark of the embryonic state.
A genetic switch active in the cells of the embryo that will become the belly skin causes the Agouti gene to become active there, creating the countershading seen in adult mammals.
The co-expression network around each of the kinase genes was defined in order to determine the functional context, i.e. the biological processes that were active in the cells and tissues where the kinase gene was expressed.
Irrespective of the source of carbon, this NADPH-generating enzyme was more active while the NADH producing counterpart and KGDH were less active in the cells subjected to an oxidative stress.
We could observe rRNA cleavage even without addition of 2-5A when RNase L was induced at a time when 2-5A-synthetases are present and active in the cells (i.e., in 80% confluent cells) (Figure 1C).
