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metallophosphoesterase
This family includes a diverse range of phosphoesterases [1], including protein phosphoserine phosphatases, nucleotidases, sphingomyelin phosphodiesterases and 2'-3' cAMP phosphodiesterases as well as nucleases such as bacterial SbcD Swiss:P13457 or yeast MRE11 Swiss:P32829. The most conserved regions in this superfamily centre around the metal chelating residues. [1]. 9685491. Phosphoesterase domains associated with DNA polymerases of diverse origins. Aravind L, Koonin EV;. Nucleic Acids Res 1998;26:3746-3752. (from Pfam)
metallophosphoesterase contains an active site consisting of two metal ions (usually manganese, iron, or zinc), and may catalyze the hydrolysis of a phosphate-containing substrate
putative phosphoesterase
Members of this protein family belong to the larger family PF00149 (calcineurin-like phosphoesterase), a family largely defined by small motifs of metal-chelating residues. The subfamily in this model shows a good but imperfect co-occurrence in species with domain TIGR03715 that defines a novel class of signal peptide typical of the accessory secretory system.
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