en.wikipedia.org/wiki/Dry_lab
2 corrections found
proteomics, which is the elucidation of their unknown structures and folding patterns.
This misdefines proteomics. Proteomics is the large-scale study of all proteins in a cell, tissue, or organism, not specifically the elucidation of unknown protein structures and folding patterns.
Full reasoning
Authoritative NIH sources define proteomics as the large-scale or systematic study of all proteins in an organism, tissue, or cell. That can include many kinds of questions—such as protein abundance, interactions, localization, modifications, and sometimes structure—but it is not defined as the elucidation of unknown protein structures and folding patterns.
For example, the National Institute of General Medical Sciences glossary defines proteomics as "the systematic, large-scale study of all proteins in an organism." Likewise, the National Human Genome Research Institute says proteomics is "a similar large-scale analysis of all the proteins in an organism, tissue type, or cell." Those definitions directly contradict the article's narrower and inaccurate characterization of proteomics as being about unknown structures and folding patterns specifically.
2 sources
- Glossary | National Institute of General Medical Sciences
Proteomics ... The systematic, large-scale study of all proteins in an organism.
- Genetics vs. Genomics Fact Sheet
Proteomics, therefore, is a similar large-scale analysis of all the proteins in an organism, tissue type, or cell (called the proteome).
Although other techniques exists, such as ramachandran plotting and mass spectrometry, these alone generally do not lead to the full elucidation of protein structure or folding mechanisms.
This is misleading because Ramachandran plotting is not a protein-structure determination technique. A Ramachandran plot is mainly a tool for visualizing allowed backbone angles and for validating already solved or modeled protein structures.
Full reasoning
The problem here is the article's treatment of Ramachandran plotting as if it were an alternative technique for determining full protein structure, alongside methods such as mass spectrometry. Authoritative structural-biology sources describe Ramachandran plots differently: they are used to map allowed backbone dihedral angles and to understand or validate protein structures that have already been solved or modeled.
EMBL-EBI's protein-structure training materials state that a Ramachandran plot is a key tool for understanding and validating protein structures, and specifically call it a standard structure-validation tool. A peer-reviewed review in Methods in Molecular Biology likewise describes the Ramachandran plot as "one of the most useful tools for validation of protein structures." That directly contradicts presenting "Ramachandran plotting" as a standalone structure-elucidation technique that merely falls short of giving a full structure.
Mass spectrometry can contribute to structural biology, but the sentence is still inaccurate because its inclusion of Ramachandran plotting in this list misstates what Ramachandran plots are used for.
2 sources
- The Ramachandran plot: A map of the possible | Foundations of protein structure
The permitted combinations can be visualised using a Ramachandran plot ... a key tool for understanding and validating protein structures ... The Ramachandran plot is also a standard structure-validation tool.
- Stereochemistry and Validation of Macromolecular Structures - PMC
One of the most useful tools for validation of protein structures is the Ramachandran plot, showing the mapping of pairs of φ/ψ torsion angles of the polypeptide backbone on the backdrop of the 'allowed' or expected values.