RT Journal Article
SR Electronic
T1 Atypical small GTPase RABL3 interacts with RAB11 to regulate early ciliogenesis in human cells
JF bioRxiv
FD Cold Spring Harbor Laboratory
SP 2022.03.14.484356
DO 10.1101/2022.03.14.484356
A1 Tetsuo Kobayashi
A1 Tatsuya Ikeda
A1 Reo Ota
A1 Takafumi Yasukawa
A1 Hiroshi Itoh
YR 2022
UL http://biorxiv.org/content/early/2022/03/15/2022.03.14.484356.abstract
AB Primary cilia are near-ubiquitously assembled on cells in the human body and are broadly associated with genetic diseases and cancers. In the early stage of ciliogenesis, the ciliary vesicle (CV) is formed on the mother centriole, which nucleates the primary cilium. However, the regulatory mechanisms underlying CV formation have not yet been fully elucidated. Here, we found that the atypical small GTPase RAB-Like 3 (RABL3) is necessary to assemble primary cilia in human cells. RABL3 directly interacts with RAB11, which is involved in CV formation. RABL3 localizes around the centrosome during early ciliogenesis, reminiscent of RAB11 dynamics. Furthermore, RABL3 positively controls the CV formation like RAB11. These findings suggest that RABL3 plays an important role, in cooperation with RAB11, in CV formation during early ciliogenesis.Competing Interest StatementThe authors have declared no competing interest.