Such glycine-alanine repeats are also found in nature, for example in silk fibroin; in particular, certain Epstein Barr virus gene products bearing this sequence can stall the proteasome, helping the virus propagate by preventing antigen presentation on the major histocompatibility complex.
32.
In 2015, " Adarsh Gupta K " of Nagaraju's research team at " Centre for DNA Fingerprinting and Diagnostics ", Hyderabad, India discovered the complete sequence and the protein structure of Muga Silk Fibroin and published it in " Nature ( journal )"
33.
They also suggested that in the polypeptides of a given protein, amino acids occurred in a regular, repeating pattern; for example, they proposed that silk fibroin, known to consist mainly of glycine and alanine, had a sequence of glycine-alanine-glycine-[ other ], with the glycine / alanine pattern making up three of every four amino acids and other residues falling periodically into the fourth spot.
