Abstract:
:Tumor necrosis factor-alpha (TNFα) is a multifunctional cytokine associated with inflammation, immune responses, and autoimmune diseases including rheumatoid arthritis, inflammatory bowel disease, and psoriasis. In the present study, we performed in vitro selection, systematic evolution of ligands by exponential enrichment (SELEX) against human TNFα from mRNA-displayed peptide library prepared with Escherichia coli-reconstituted cell-free transcription/translation system (PURE system) and cyclized by N-chloroacetyl-N-methyl-d-phenylalanine incorporated by genetic code expansion (sense suppression). We identified a novel TNFα-binding thioether-cyclized peptide that contains an N-methyl-d-phenylalanine. Since cyclic structure and presence of an N-methyl-d-amino acid can increase proteolytic stability, the TNFα binding peptide has potential to be used for therapeutic, research and diagnostic applications.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Tsukamoto K,Ando T,Fuji D,Yokoyama T,Takamori Y,Horiuchi D,Iwamoto R,Yamamoto M,Kawakami Tdoi
10.1016/j.bbrc.2020.11.050subject
Has Abstractpub_date
2021-01-01 00:00:00pages
519-525eissn
0006-291Xissn
1090-2104pii
S0006-291X(20)32094-5journal_volume
534pub_type
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