_EC 3.5.3.- In linear amidines. 317 PDB entries  
EC 3.-.-.- Hydrolases. [51,972 PDB entries]
EC 3.5.-.- Acting on carbon-nitrogen bonds, other than peptide bonds. [4,889 PDB entries]
EC 3.5.3.- In linear amidines. [317 PDB entries]
EC 3.5.3.1 arginase. [154 PDB entries]
EC 3.5.3.2 guanidinoacetase. [-]
EC 3.5.3.3 creatinase. [2 PDB entries]
EC 3.5.3.4 allantoicase. [2 PDB entries]
EC 3.5.3.5 formimidoylaspartate deiminase. [-]
EC 3.5.3.6 arginine deiminase. [9 PDB entries]
EC 3.5.3.7 guanidinobutyrase. [1 PDB entries]
EC 3.5.3.8 formimidoylglutamase. [8 PDB entries]
EC 3.5.3.9 allantoate deiminase. [3 PDB entries]
EC 3.5.3.10 D-arginase. [-]
EC 3.5.3.11 agmatinase. [12 PDB entries]
EC 3.5.3.12 agmatine deiminase. [8 PDB entries]
EC 3.5.3.13 formimidoylglutamate deiminase. [5 PDB entries]
EC 3.5.3.14 amidinoaspartase. [-]
EC 3.5.3.15 protein-arginine deiminase. [61 PDB entries]
EC 3.5.3.16 methylguanidinase. [-]
EC 3.5.3.17 guanidinopropionase. [2 PDB entries]
EC 3.5.3.18 dimethylargininase. [24 PDB entries]
EC 3.5.3.19 Transferred entry: 3.5.1.116. [-]
EC 3.5.3.20 diguanidinobutanase. [-]
EC 3.5.3.21 methylenediurea deaminase. [-]
EC 3.5.3.22 proclavaminate amidinohydrolase. [2 PDB entries]
EC 3.5.3.23 N-succinylarginine dihydrolase. [3 PDB entries]
EC 3.5.3.24 N(1)-aminopropylagmatine ureohydrolase. [-]
EC 3.5.3.25 N(omega)-hydroxy-L-arginine amidinohydrolase. [11 PDB entries]
EC 3.5.3.26 (S)-ureidoglycine aminohydrolase. [3 PDB entries]
EC 3.5.3.27 arginine dihydrolase. [7 PDB entries]

[-] signifies that there are no PDB entries for the given enzyme subclass