Overexpression of CapD Results in a Smaller Capsule in Bacillus anthracis (image) Microbiology Society Share Print E-Mail Caption Overexpression of CapD results in a smaller capsule in Bacillus anthracis. Capsule is indicated as the clear area around the bacillus. Wild-type strain is shown on the left and the strain over-expressing CapD is shown on the right. Credit Arthur Friedlander 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.