[Isoform 2]: Cytoplasm, cytoskeleton . Cytoplasm . Golgi apparatus . Cell membrane . Cell projection, ruffle membrane . The phosphorylated form is found in the cytoplasm while the non-phosphorylated form associates with the microtubules (By similarity). Localizes to the tips of microtubules (PubMed:27693509). Associated with the minus-end of microtubules via interaction with CAMSAP3 (PubMed:27693509). APC controls its localization to the cell membrane which is critical for its function in microtubule stabilization (PubMed:20937854). .; [Isoform 1]: Cytoplasm . Golgi apparatus . Localizes to the tips of microtubules. .
Isoform 2: Ubiquitously expressed. Isoform 1: Expressed in cell lines NCI-H460, A-549 and HaCaT. Isoform 4: Expressed in heart, lung, pituitary and placenta, not found in brain, kidney, liver, pancreas or skeletal muscle.