Sperm-associated antigen 8

UniProtKB accession:  Q3V0Q6

Grouped By:  Matching UniProtKB accession

UniProtKB description:  Microtubule inner protein (MIP) part of the dynein-decorated doublet microtubules (DMTs) in cilia axoneme, which is required for motile cilia beating (PubMed:37295417, PubMed:37865089, PubMed:37989994). Plays a role in spermatogenesis by enhancing the binding of CREM isoform tau to its coactivator FHL5 and increasing the FHL5-regulated transcriptional activation of CREM isoform tau (PubMed:20488182). Involved in the acrosome reaction and in binding of sperm to the zona pellucida (PubMed:17187156). Plays a role in regulation of the cell cycle by controlling progression through the G2/M phase, possibly by delaying the activation of CDK1 which is required for entry into mitosis (By similarity). May play a role in fertility and microtubule formation through interaction with RANBP9 (By similarity).