The phrase "a sequence rich" is not correct in standard written English.
It may be intended to describe a sequence that is abundant or full of variety, but it lacks proper grammatical structure.
Example: "The artist created a sequence rich in color and emotion, captivating the audience with each frame."
Alternatives: "a rich sequence" or "a sequence full of richness".
The full-length PfHRPII protein contains an N-terminal SS and HT motif, followed by a sequence rich in histidine-repeats that extends to the C terminus.
Aspein is an acidic protein that has a sequence rich in aspartic acid and is expressed at the outer edge of the mantle [ 70].
Moreover, the nonsense mutations observed in NOTCH1 generate a premature stop codon, resulting in a C-terminally truncated NOTCH1 protein lacking a PEST sequence (a sequence rich in proline, glutamic acid, serine and threonine) that is important for transcription activation.
Along the same lines, a subfamily of FGF proteins, FGF11 14, named FHFs (for FGF Homology Factors) are devoid of signal peptide but contain a sequence rich in basic amino acids that resemble a NLS.
The most prominent flanking element is a sequence rich in uridines and cytidines, known as the polypyrimidine tract, which is located immediately upstream of the 3′ splice site, and is required for binding of the U2 auxiliary factor 65 (U2AF65).
A brief sequence rich in glycine and serine residues follows the conserved motif, forming a region of high predicted flexibility (data not shown).
These regions are stable in the hydrophobic environment of this lipid bilayer due to a primary sequence rich in apolar residues.
CCN3 NLS is a polycationic sequence rich in lysine (PTDKKGKKCLRTKKSLKA) located at the beginning of the CT module.
The polypyrimidine tract is an intronic sequence rich in pyrimidines (14 16).
In pestivirus E1 proteins, a sequence similarly rich in hydrophobic amino acids can also be found between residues 57 and 85.
The above described bioinformatics analysis showed that about one-third of noncanonical poly(A) sites contain an A-rich sequence upstream of the cleavage site.
