Mutations in various domains of the Vav1 protein are present in human cancers such as adult T-cell leukemia/lymphoma [6], peripheral T-cell lymphomas [7], lung adenocarcinoma and squamous cell carcinomas [7], as well other cancers (https://cancer.sanger.ac.uk/cosmic/ (accessed on 15 December 2021)). Here, VAV1 is linked to lymphoma.