NF000342: glpA_Cterm (this model, PSSM-Id:411081 is obsolete and has been replaced by 439391)
aminoglycoside O-phosphotransferase APH(4)-Ib
The C-terminal half of CAA52372.1 shows homology to hygromycin-modifying enzyme APH(4)-Ia. The N-terminal region shows no homology to any other protein. The gene glpA was identified as one of two in a 3.0-kb DNA segment capable of conferring on E. coli the ability to degrade and use the phosphonate herbicide glyphosate as a sole carbon source. The expressed protein conferred minor (3-fold) increase in tolerance to hygromycin, but this protein probably should not be considered an aminoglycoside modifying enzyme associated with the spread of resistance in bacteria toward clinically important antimicrobials.
Jiyao W et al.(2023). "The conserved domain database in 2023.",