PCNT [SEP] chromosome
PCNT
Pericentrin (kendrin), also known as PCNT and pericentrin-B (PCNTB), is a protein which in humans is encoded by the "PCNT" gene on chromosome 21. This protein localizes to the centrosome and recruits proteins to the pericentriolar matrix (PCM) to ensure proper centrosome and mitotic spindle formation, and thus, uninterrupted cell cycle progression. This gene is implicated in many diseases and disorders, including congenital disorders such as microcephalic osteodysplastic primordial dwarfism type II (MOPDII) and Seckel syndrome.
Structure
spindle formation. The protein controls the nucleation of microtubules by interacting with the microtubule nucleation component γ-tubulin, thus anchoring the γ-tubulin ring complex to the centrosome, which is essential for bipolar spindle formation and chromosome assembly in early mitosis. This ensures normal function and organization of the centrosomes, mitotic spindles, and cytoskeleton, and by extension, regulation over cell cycle progression and checkpoints. Downregulation of PCNT disrupted mitotic checkpoints and arrested the cell at the G2/M checkpoint, leading to cell death. Moreover, microtubule