_EC 3.1.4.- Phosphoric diester hydrolases. 466 PDB entries  
EC 3.-.-.- Hydrolases. [21,317 PDB entries]
EC 3.1.-.- Acting on ester bonds. [6,034 PDB entries]
EC 3.1.4.- Phosphoric diester hydrolases. [466 PDB entries]    
EC 3.1.4.1 Phosphodiesterase I. [6 PDB entries]
EC 3.1.4.2 Glycerophosphocholine phosphodiesterase. [2 PDB entries]
EC 3.1.4.3 Phospholipase C. [17 PDB entries]
EC 3.1.4.4 Phospholipase D. [29 PDB entries]
EC 3.1.4.5 Transferred entry: 3.1.21.1. [-]
EC 3.1.4.6 Transferred entry: 3.1.22.1. [-]
EC 3.1.4.7 Transferred entry: 3.1.31.1. [-]
EC 3.1.4.8 Transferred entry: 3.1.27.3. [7 PDB entries]
EC 3.1.4.9 Transferred entry: 3.1.30.2. [-]
EC 3.1.4.10 Transferred entry: 4.6.1.13. [-]
EC 3.1.4.11 Phosphoinositide phospholipase C. [47 PDB entries]
EC 3.1.4.12 Sphingomyelin phosphodiesterase. [7 PDB entries]
EC 3.1.4.13 Serine-ethanolaminephosphate phosphodiesterase. [-]
EC 3.1.4.14 [Acyl-carrier-protein] phosphodiesterase. [-]
EC 3.1.4.15 Adenylyl-[glutamate--ammonia ligase] hydrolase. [-]
EC 3.1.4.16 2',3'-cyclic-nucleotide 2'-phosphodiesterase. [1 PDB entries]
EC 3.1.4.17 3',5'-cyclic-nucleotide phosphodiesterase. [109 PDB entries]
EC 3.1.4.18 Transferred entry: 3.1.16.1. [-]
EC 3.1.4.19 Transferred entry: 3.1.13.3. [-]
EC 3.1.4.20 Transferred entry: 3.1.13.1. [-]
EC 3.1.4.21 Transferred entry: 3.1.30.1. [-]
EC 3.1.4.22 Transferred entry: 3.1.27.5. [-]
EC 3.1.4.23 Transferred entry: 3.1.27.1. [-]
EC 3.1.4.24 Deleted entry. [-]
EC 3.1.4.25 Transferred entry: 3.1.11.1. [-]
EC 3.1.4.26 Deleted entry. [-]
EC 3.1.4.27 Transferred entry: 3.1.11.2. [-]
EC 3.1.4.28 Transferred entry: 3.1.11.3. [-]
EC 3.1.4.29 Deleted entry. [-]
EC 3.1.4.30 Transferred entry: 3.1.21.2. [-]
EC 3.1.4.31 Transferred entry: 3.1.11.4. [-]
EC 3.1.4.32 Deleted entry. [-]
EC 3.1.4.33 Deleted entry. [-]
EC 3.1.4.34 Deleted entry. [-]
EC 3.1.4.35 3',5'-cyclic-GMP phosphodiesterase. [120 PDB entries]
EC 3.1.4.36 Transferred entry: 3.1.4.43. [-]
EC 3.1.4.37 2',3'-cyclic-nucleotide 3'-phosphodiesterase. [18 PDB entries]
EC 3.1.4.38 Glycerophosphocholine cholinephosphodiesterase. [-]
EC 3.1.4.39 Alkylglycerophosphoethanolamine phosphodiesterase. [12 PDB entries]
EC 3.1.4.40 CMP-N-acylneuraminate phosphodiesterase. [-]
EC 3.1.4.41 Sphingomyelin phosphodiesterase D. [-]
EC 3.1.4.42 Glycerol-1,2-cyclic-phosphate 2-phosphodiesterase. [-]
EC 3.1.4.43 Glycerophosphoinositol inositolphosphodiesterase. [-]
EC 3.1.4.44 Glycerophosphoinositol glycerophosphodiesterase. [-]
EC 3.1.4.45 N-acetylglucosamine-1-phosphodiester alpha-N-acetylglucosaminidase. [-]
EC 3.1.4.46 Glycerophosphodiester phosphodiesterase. [4 PDB entries]
EC 3.1.4.47 Transferred entry: 4.6.1.14. [-]
EC 3.1.4.48 Dolichylphosphate-glucose phosphodiesterase. [-]
EC 3.1.4.49 Dolichylphosphate-mannose phosphodiesterase. [-]
EC 3.1.4.50 Glycosylphosphatidylinositol phospholipase D. [-]
EC 3.1.4.51 Glucose-1-phospho-D-mannosylglycoprotein phosphodiesterase. [-]
EC 3.1.4.52 Cyclic-guanylate-specific phosphodiesterase. [8 PDB entries]
EC 3.1.4.53 3',5'-cyclic-AMP phosphodiesterase. [77 PDB entries]
EC 3.1.4.54 N-acetylphosphatidylethanolamine-hydrolyzing phospholipase D. [-]
EC 3.1.4.55 Phosphoribosyl 1,2-cyclic phosphate phosphodiesterase. [2 PDB entries]
EC 3.1.4.56 7,8-dihydroneopterin 2',3'-cyclic phosphate phosphodiesterase. [-]
EC 3.1.4.57 Phosphoribosyl 1,2-cyclic phosphate 1,2-diphosphodiesterase. [-]
EC 3.1.4.n1 Transferred entry: 3.1.4.53. [-]

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