Sperm Protein Associated With the Nucleus on the X Chromosome B1

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

**Definition:** Sperm protein associated with the nucleus on the X chromosome B1 (103 aa, ~12 kDa) is encoded by the human SPANXB1 gene. This protein may be involved in sperm formation.

**Synonyms:** - CT11.2 - Cancer/Testis Antigen 11.2 - Nuclear-Associated Protein SPAN-Xb - Nuclear-Associated Protein SPAN-Xf - SPANX Family Member B/F - SPANX Family Member B1 - SPANX Family Member F1 - SPANX-B - SPANX-F - SPANXB1 - Sperm Protein Associated With the Nucleus on the X Chromosome B/F - Sperm Protein Associated With the Nucleus on the X Chromosome B/F