DCDC2B (Doublecortin Domain Containing 2B) is a protein that belongs to the doublecortin family, known for its role in brain development. Proteins in this family contain doublecortin domains that bind to microtubules, helping guide neuronal migration and proper formation of the cerebral cortex. Proper function of DCDC2B is essential for normal brain development, and changes in this protein may be associated with neurological disorders and developmental issues.