Protein Expression, Modification, and Purification The 7c12 monobody as isolated from a phage-display library was not sufficiently soluble for crystallization trials.
However, from 2D SDS-PAGE data it is not possible to claim whether a change is caused by protein expression alteration or by protein posttranslational modification.
Predictive biomarkers may be based on any of a variety of molecular features; possibilities include genomic sequence, epigenetic modification, transcription, protein expression, posttranslational modification, and metabolite profiles.
It can elucidate pathological responses to a specific toxicant at the protein molecule level, including qualitative and quantitative measurements of protein expression, protein modifications, and protein-protein/toxicant interactions [ 22].
Mechanisms of susceptibility may also be dependent on non-transcriptional events such as protein expression and modifications, as well as polymorphisms in specific genes and proteins, which lie beyond the scope of the current study.
Thanks to these repositories, gene expression (transcriptomics), protein expression and modifications (proteomics), primary and secondary metabolites production (metabolomics) as well as their control systems can be framed in the context of flux analysis, reconstructing pathways and modelling their behaviour in a mechanistic and mathematically appropriate framework [ 10].
However, the exact pathophysiology remains unclear, and different underlying mechanisms have been proposed, including protein expression and modification as well as protein-protein interactions.
Protein expression and modification were analyzed by immunoblot.
A method that permitted this to be done simultaneously would be convenient and would provide information on both protein expression and modification.
In addition to promoter regulation, another important mechanism that contributes towards protein expression is modification of its turn over rate or stability.
