Sphingomyelin phosphodiesterase

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Acid sphingomyelinase
Identifiers
Symbol(s) SMPD1
Entrez 6609
OMIM 607608
RefSeq NM_000543
UniProt P17405
Other data
EC number 3.1.4.12
Locus Chr. 11 p15.4-15.1

Sphingomyelin phosphodiesterase (or sphingomyelinase) is a phosphodiesterase enzyme which acts upon sphingomyelin.

It is classified under EC number EC 3.1.4.12.

A deficiency in this enzyme is associated with Niemann-Pick disease.

There are five forms:

  • SMPD1 - acid
  • SMPD2 - neutral
  • SMPD3 - neutral
  • SMPDL3A - acid-like
  • SMPDL3B - acid-like