KIF15, also named as KLP2 and KNSL7, belongs to the kinesin-like protein family and KLP2 subfamily. It is a plus-end directed kinesin-like motor enzyme which involved in mitotic spindle assembly. It is located in the cytoplasm and biased expression in testis. Several isoforms of KIF15 exist due to the alternative splicing, with molecular weight between 130-160 kDa. Sometimes higher molecular weight around 200 kDa can also be observed, which may be a modified variant of KIF15 (14618103). It is known that KIF15 participates in important events during neuronal development and involves multiple cellular processes such as proliferation, apoptosis, and differentiation. There is emerging evidence indicating that KIF15 plays an important role in several malignancies including pancreatic cancer, hepatocellular carcinoma, and breast cancer (PMID: 33277366).