PROSITE documentation PDOC00891
Class A bacterial acid phosphatases signature


Class A bacterial acid phosphatases [1] (EC are a family of related periplasmic enzymes. This family currently consist of:

  • Morganela morganii major phosphate-irrepressible acid phosphatase (HPAP) (gene phoC).
  • Providencia stuartii and Salmonella typhimurium nonspecific acid phosphatase (NSAP) (gene phoN).
  • Zymomonas mobilis acid phosphatase (gene phoC).

As a signature pattern, we selected the most conserved region, a perfectly conserved octapeptide located in the central region of these enzymes.

Last update:

November 1995 / First entry.


Technical section

PROSITE method (with tools and information) covered by this documentation:

ACID_PHOSPH_CL_A, PS01157; Class A bacterial acid phosphatases signature  (PATTERN)


1AuthorsThaller M.C. Berlutti F. Schippa S. Lombardi G. Rossolini G.M.
TitleCharacterization and sequence of PhoC, the principal phosphate-irrepressible acid phosphatase of Morganella morganii.
SourceMicrobiology 140:1341-1350(1994).
PubMed ID8081499

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