Sperm Protein Associated With the Nucleus on the X Chromosome N4

**Semantic type:** Amino Acid, Peptide, or Protein

**Definition:** Sperm protein associated with the nucleus on the X chromosome N4 (99 aa, ~11 kDa) is encoded by the human SPANXN4 gene. This protein may play a role in the maturation of sperm.

**Synonyms:** - Nuclear-Associated Protein SPAN-Xn4 - SPANX Family Member N4 - SPANX-N4