Coronavirus disease (COVID-19) is an infectious disease caused by a newly discovered coronavirus. The people
affected with COVID-19 will experience mild to moderate symptoms and recover without special treatment. The virus that causes
COVID-19 is mainly transmitted through droplets generated when an infected person coughs, sneezes, or exhales. These
droplets are too heavy to hang in the air, and quickly fall on floors or surfaces Virus usually spreads by touching a contaminated
surface and then eyes, nose or mouth .In the above studies the sequence for covid-19 encoding the protein nucleocapsid was
retrieved from ncbi database. Its chemical structure, rna binding site, structure similarity and secondary structure of n-protein,
and amino acid position were analyzed and based on the analysis it is found that the n-protein was serotonin rich (serotonin is a
happy chemical which have wide function in human body).
