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Table 3 Possible sources of serine deaminase in organisms containing TrpEb_2

From: Significance of two distinct types of tryptophan synthase beta chain in Bacteria, Archaea and higher plants

  Serine deaminases Threonine deaminases
Organisms Fe-S* PLP* TdcA* IlvA*
Pyrococcus horikoshii - - - -
Pyrococcus furiosus - - - -
Pyrococcus abyssi - - - -
Methanobacterium thermoautotrophicum - - - -
Thermoplasma acidophilum - - + -
Thermoplasma volcanium - - + -
Ferroplasma acidarmanus - - + -
Methanosarcina barkeri - - - -
Archaeoglobus fulgidus - - - -
Pyrobaculum aerophilum - - + -
Aeropyrum pernix - - + -
Sulfolobus solfataricus - - + -
Aquifex aeolicus - - - -
Thermotoga maritima - - + -
Mycobacterium smegmatis + - + -
Chlorobium tepidum - - - -
Geobacter sulfurreducens - - + -
Rhodopseudomonas palustris - - + -
  1. *Sequences that were used to query the databases at NCBI [38], at JGI [39] for Fac and Mba, and at ERGO [40] for Paer and Rpa were gi 2501150 (iron-sulfur (Fe-S) serine deaminases), gi 134387 (PLP-dependent serine deaminases), gi 135723 (catabolic threonine deaminase), and gi 135720 (biosynthetic threonine deaminase).