Fig. 2 (IMAGE) Osaka University Caption Left: Model of the Type IV pilus system transporting the soluble colonization factor. Right: Crystal structure of TCP in complex with the colonization factor. Credit 2022 Oki et al., Science Advances Usage Restrictions Credit must be given to the creator. License CC BY 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.