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Protein primary sequence analysis

Knowledge of protein primary sequence, quantities, posttranslational modifications (PTMs), structures, protein-protein (P-P) interactions, cellular spatial relationships, and functions are seven important attributes (see Table 4.2) needed for comprehensive protein expression analysis. It is this multifold and complex nature of protein attributes that has spawned the development of so different many proteomic technologies. Some of these challenges in proteomic analysis include defining the identities and quantities of an entire proteome in a particular spatial location (i.e., serum, liver mitochondria, brain), the existence of multiple protein forms and complexes, the evolving structural and functional annotations of the human and rodent... [Pg.41]

THEORETICAL AND COMPUTER ANALYSIS OF PROTEIN PRIMARY SEQUENCES STRUCTURE CCRfPARISON AND PREDICTION... [Pg.21]

In recent years, it has become possible to predict the primary structure of a protein from sequence analysis of its gene (Section 19.7) by application of the genetic code (Section 17.5). [Pg.42]

The hybrid approach enhances the speed and efficiency of primary structure analysis and the range of proteins that can be sequenced. It also circumvents obstacles such as the presence of an amino-terminal blocking group or the lack of a key overlap peptide. Only a few segments of primary strucmre must be determined by Edman analysis. [Pg.26]

Complex peptide mixmres can now be analyzed without prior purification by tandem mass spectrometry, which employs the equivalent of two mass spectrometers linked in series. The first spectrometer separates individual peptides based upon their differences in mass. By adjusting the field strength of the first magnet, a single peptide can be directed into the second mass spectrometer, where fragments are generated and their masses determined. As the sensitivity and versatility of mass spectrometry continue to increase, it is displacing Edman sequencers for the direct analysis of protein primary strucmre. [Pg.27]

The primary analytical applications of RPLC in the development of biopharmaceuticals are the determination of protein purity and protein identity. Purity is established by analysis of the intact protein, and RPLC is useful in detecting the presence of protein variants, degradation products, and contaminants. Protein identity is most often established by cleavage of the protein with a site-specific protease followed by resolution of the cleavage products by RPLC. This technique, termed peptide mapping, should yield a unique pattern of product peptides for a protein that is homogeneous with respect to primary sequence. [Pg.54]


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Analyses primary

Primary Structure of Proteins Sequence Analysis by Tandem Mass Spectrometry

Primary protein sequence

Primary sequence

Protein analysis

Protein primary

Protein sequence

Protein sequence analysis

Protein sequencing

Sequence analysis

Sequencing analysis

Sequencing, proteins sequencers

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