Structure Of Coronaviruses and Structural Proteins

Coronavirus is a large family of viruses that cause illnesses ranging from the common cold to more severe infections such as pneumonia, Middle East Respiratory Syndrome and severe acute respiratory syndrome. They belong to a family of enveloped, positive-sense, single-stranded RNA (+ssRNA) viruses. The name “coronavirus” is derived from the Latin corona and the Greek κορώνη (korṓnē, “garland, wreath”), meaning crown or halo. This is the characteristic of the virion when seen under an electron microscope. Characteristics of coronavirus. Coronaviruses belong to a family of enveloped, positive-sense, single-stranded RNA (+ssRNA) viruses. The SARS-CoV 2 (Covid-19) virion has a diameter of approximately 1,250 nm , and its genome ranges from 26 to 32 kilobases. Coronavirus is the largest for an RNA virus. SARS-Coronavirus 2 has 5 structural proteins which are: spike (S), envelope (E), membrane (M), nucleocapsid (N), and hemagglutinin-esterase (HE). The neucleocapsid(N) protein holds the ribonucleicacidgenome, and the spike (S), envelope (E,) and membrane (M) proteins create the viral envelope. The S protein, together with hemagglutin-esterase (HE), is responsible for the entry of the virion into the cell. SUBSCRIBE, LIKE and SHARE Check our website for more medical lecture notes at https://medcrine.com Follow us on twitter @medcrine Facebook at www.fb.me/medcrine Pinterest at pinterest.com/medcrine Telegram at t.me/medcrine email us on info@medcrine.com