Atomic Structure of Paramyxoviruses Polymerase (image) Northwestern University Share Print E-Mail Caption The atomic structure of a polymerase in human parainfluenza virus 5 reveals an irregular, round-shaped globule with a long tail made of four phosphoproteins. The structure contains more than 2,000 amino acids and five proteins. Credit Northwestern University Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.