The phrase "absence of this modification" is correct and usable in written English.
It can be used in contexts where you are discussing the lack of a specific change or adjustment in a process, document, or system.
Example: "The absence of this modification has led to several unforeseen issues in the project timeline."
Alternatives: "lack of this modification" or "nonexistence of this modification".
In the absence of this modification on tRNALys two outcomes are possible: asparagine codons (AAC and AAU) could be misread by tRNALys, leading to amino acid misincorporation, or altered stability of the codon recognition complex leading to ribosome pausing10,11,12.
Therefore, identifying the presence or absence of this modification could serve as a marker to determine whether canonical NF-κB activated by chemotherapeutics is transcriptionally active or repressive, respectively.
The presence or absence of this modification can achieve switch-like regulation [ 25, 26].
The absence of this modification in prolegumin, whose predicted and apparent molecular weight is similar, would reflect differences in trafficking, as already noted in soybean.
Absence of this modification (either by mutating Rad6 or H2B (K123R)), affects activation of the checkpoint kinase Rad53 and appears connected with exposure of lysine 79-methylated H3 and its subsequent activation of another checkpoint protein Rad9 [ 71, 72].
In the absence of this modification, TbARL6 may instead accumulate at a "default" localisation in the region with the highest tubulin concentration, that of the subpellicular cortex underlying the plasma membrane [74].
In the absence of this U34 modification, translation on cognate codons is impaired using an in vitro5 assay.
Nevertheless after six hours post treatment there was an almost complete absence of this FOXO3a modification in either breast or osteosarcoma cancer cells.
This raises the possibility that the mcm5s2 modification present in the control may indeed reduce the ability of U34 to pair with G-ending (wobble) codons, such that the absence of the modification actually increases the efficiency of AG translation9,10,11, although further kinetic data are required to show this.
A dynamic modification search (i.e., the presence and absence of the modification was searched) for methionine oxidation and a static search (i.e., presence of the modification was searched only) for alkylation of the cysteines by iodoacetamide.
Then the yjeK or yjeA genes could be deleted in this strain and the EF-P purified to analyze the factor for the presence or the absence of the modification.
