- former designation for biotin;
- vitamin B12 analogue or precursor;
- a glycoprotein that regulates the activity of complement factor C3b; a deficiency results in the lack of inhibition of the alternative hemolytic pathway leading to continuous activation and consumption of factor C3 (hemolytic uremic syndrome).
© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.