Differences Between Genomics vs Proteomics
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S.N. |
Character |
Genomics |
Proteomics |
1. |
Definition |
Genomics is the study of genomes which
refers to the complete set of genes or genetic material present in a cell or
organism. |
Proteomics is the branch of molecular
biology that studies the set of proteins expressed by the genome of an
organism. |
2. |
Study of |
Genomics is the study of
the genes in an organism. |
Proteomics is the study of all the proteins in
a cell. |
3. |
Unit under Study |
The study of the function of genomes |
The study of the function of proteomes |
4. |
Nature of Study Material |
The genome is constant. Every cell of an
organism has the same set of genes. |
The proteome is dynamic and varies. The
set of proteins produced in different tissues varies according to
the gene expression. |
5. |
Use of High throughput techniques |
High throughput techniques are used in the
genomics to map, sequence, and analyze genomes. |
In proteomics, characterization of the 3D
structure and the function of proteins is carried out by the use of high
throughput methods. |
6. |
Techniques involved |
The techniques involved in genomics include
gene sequencing strategies such as directed gene sequencing, whole-genome
shotgun sequencing, construction of expressed sequence tags (ESTs),
identification of single nucleotide polymorphisms (SNPs), and the analysis
and interpretation of sequenced data using different software and databases. |
Techniques involved in proteomics include extraction
and electrophoretic separation of proteins, digestion of proteins with the
use of trypsin into small fragments, determination of the amino acid sequence
by mass spectrometry, and identification of proteins using the information in
the protein databases. Moreover, the 3D structure of the protein can be
predicted using software-based methods. The expression of proteins can be
studied by protein microarrays. Protein-network maps can be developed to
determine protein-protein interactions. |
7. |
Types |
The two types of genomics are structural
genomics and functional genomics. |
The three types of proteomics are
structural, functional, and expression proteomics. |
8. |
Important Areas |
Genome sequencing projects such as the Human Genome Project are the important areas of genomics. |
Proteome database developments such as
SWISS-2DPAGE and software development for computer-aided drug design are the
important areas of proteomics. |
9. |
Importance |
Genomic studies are important to understand
the structure, function, location, regulation of the genes of an organism. |
The study of the entire set of proteins produced by a cell type is done in
order to understand its structure and function. |
10. |
Significance |
Genes in the nucleus may not accurately portray conditions
in the cell due to regulation at the RNA and protein level that can not be
viewed in Genomics studies. |
Proteomics studies are more beneficial
because proteins are the functional molecules in cells and represent actual
conditions. |
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