Extended Data Fig. 2: Additional images of the GdmH structure.
From: Discovery of a Ni2+-dependent guanidine hydrolase in bacteria
a: Top view of the GdmH hexamer with one subunit in surface display (bright yellow) and two subunits as ribbons below a transparent surface (orange and sky blue). The extended N-terminus of the orange subunit is highlighted by saturated color. b: Comparison of the GdmH capping helix (blue) with the same helix from the most similar protein with a high resolution structure, guanidinobutyrase from Pseudomonas aeruginosa (grey with capping helix in yellow, PDB entry 3NIO). Although the overall fold is well conserved between both enzymes, the position of the highlighted α-helix is shifted towards the active site.
