RAI14
Function
Plays a role in actin regulation at the ectoplasmic specialization, a type of cell junction specific to testis. Important for establishment of sperm polarity and normal spermatid adhesion. May also promote integrity of Sertoli cell tight junctions at the blood-testis barrier.
Tissue Specificity
Highly expressed in placenta, muscle, kidney and testis. Moderately expressed in heart, brain, lung, liver and intestine. Isoform 2 is widely expressed and expressed in fetal and adult testes, and spermatozoa.
Cellular localization
- Cytoplasm
- Cytoskeleton
- Cytoplasm
- Cytoskeleton
- Stress fiber
- Cytoplasm
- Cell cortex
- Cell junction
- Nucleus
- Associated with the cortical actin cytoskeleton structures in terminal web and cell-cell adhesion sites (By similarity). Highly expressed at the ectoplasmic specialization, an actin-rich cell junction specific to the testis (By similarity). Predominantly nuclear in nonconfluent cells (PubMed:16729964).
Alternative names
KIAA1334, NORPEG, RAI14, Ankycorbin, Ankyrin repeat and coiled-coil structure-containing protein, Novel retinal pigment epithelial cell protein, Retinoic acid-induced protein 14