Sphingomyelin Phosphodiesterase 4

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

**Definition:** Sphingomyelin phosphodiesterase 4 (827 aa, ~93 kDa) is encoded by the human SMPD4 gene. This protein is involved in sphingomyelin catabolism.

**Synonyms:** - EC 3.1.4.12 - Neutral Sphingomyelinase III - SMPD4 - nSMase-3 - nSMase3