Pathogen-associated Replikin peptide motifs (Replikin)

Pathogen-associated Replikin peptide motifs are a class of short, conserved amino acid sequences characterized by a specific arrangement of lysine and histidine residues. Specifically, a Replikin is defined as a sequence of 7 to 50 amino acids containing at least two lysines 6 to 10 residues apart, at least one histidine, and a total lysine content of at least 6% (7). These motifs are claimed to be quantitatively associated with the rapid replication rates of various pathogens, including influenza viruses, SARS-CoV, and Zika virus, as well as malignant cancer cells (3, 4, 5). Therapeutic strategies targeting these motifs involve the development of synthetic peptide vaccines and antibodies designed to disrupt the replication cycle (1, 2). Despite being the basis for several experimental vaccines and diagnostic tests like the Antimalignin Antibody in Serum (AMAS) test, the Replikin concept remains controversial and is not widely accepted in mainstream molecular biology due to a perceived lack of rigorous mechanistic evidence (9, 10).

Other names

Replikin sequencesReplikin motifsReplikin structuresGenomic Replikins

Inhibition of rapid replication by targeting conserved lysine- and histidine-rich motifs claimed to be essential for the replication cycle of pathogens and malignant cells.