Sperm Protein Associated With the Nucleus on the X Chromosome N1

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

**Definition:** Sperm protein associated with the nucleus on the X chromosome N1 (72 aa, ~8 kDa) is encoded by the human SPANXN1 gene. This protein may be involved in spermatogenesis.

**Synonyms:** - Nuclear-Associated Protein SPAN-Xn1 - SPANX Family Member N1 - SPANX-N1