_EC 3.1.4.- Phosphoric diester hydrolases. 1,581 PDB entries  
EC 3.-.-.- Hydrolases. [52,127 PDB entries]
EC 3.1.-.- Acting on ester bonds. [12,902 PDB entries]
EC 3.1.4.- Phosphoric diester hydrolases. [1,581 PDB entries]
EC 3.1.4.1 phosphodiesterase I. [48 PDB entries]
EC 3.1.4.2 glycerophosphocholine phosphodiesterase. [1 PDB entries]
EC 3.1.4.3 phospholipase C. [32 PDB entries]
EC 3.1.4.4 phospholipase D. [299 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: 4.6.1.24. [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. [74 PDB entries]
EC 3.1.4.12 sphingomyelin phosphodiesterase. [19 PDB entries]
EC 3.1.4.13 serine-ethanolaminephosphate phosphodiesterase. [-]
EC 3.1.4.14 [acyl-carrier-protein] phosphodiesterase. [1 PDB entries]
EC 3.1.4.15 Transferred entry: 2.7.7.89. [-]
EC 3.1.4.16 2',3'-cyclic-nucleotide 2'-phosphodiesterase. [10 PDB entries]
EC 3.1.4.17 3',5'-cyclic-nucleotide phosphodiesterase. [441 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: 4.6.1.18. [-]
EC 3.1.4.23 Transferred entry: 4.6.1.19. [-]
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. [90 PDB entries]
EC 3.1.4.36 Transferred entry: 3.1.4.43. [-]
EC 3.1.4.37 2',3'-cyclic-nucleotide 3'-phosphodiesterase. [43 PDB entries]
EC 3.1.4.38 glycerophosphocholine cholinephosphodiesterase. [3 PDB entries]
EC 3.1.4.39 alkylglycerophosphoethanolamine phosphodiesterase. [259 PDB entries]
EC 3.1.4.40 CMP-N-acylneuraminate phosphodiesterase. [-]
EC 3.1.4.41 sphingomyelin phosphodiesterase D. [1 PDB entries]
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. [20 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. [47 PDB entries]
EC 3.1.4.53 3',5'-cyclic-AMP phosphodiesterase. [168 PDB entries]
EC 3.1.4.54 N-acetylphosphatidylethanolamine-hydrolyzing phospholipase D. [4 PDB entries]
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 3.1.4.58 Rna 2',3'-cyclic 3'-phosphodiesterase. [7 PDB entries]
EC 3.1.4.59 cyclic-di-AMP phosphodiesterase. [5 PDB entries]
EC 3.1.4.60 pApA phosphodiesterase. [-]
EC 3.1.4.61 cyclic 2,3-diphosphoglycerate hydrolase. [-]
EC 3.1.4.62 phosphatidylethanolamine phospholipase C. [-]
EC 3.1.4.n1 Transferred entry: 3.1.4.53. [-]

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