_EC 5.4.99.- Transferring other groups. 74 PDB entries  
EC 5.-.-.- Isomerases. [922 PDB entries]
EC 5.4.-.- Intramolecular transferases (mutases). [166 PDB entries]
EC 5.4.99.- Transferring other groups. [74 PDB entries]    
EC 5.4.99.1 Methylaspartate mutase. [4 PDB entries]
EC 5.4.99.2 Methylmalonyl-CoA mutase. [5 PDB entries]
EC 5.4.99.3 2-acetolactate mutase. [-]
EC 5.4.99.4 2-methyleneglutarate mutase. [-]
EC 5.4.99.5 Chorismate mutase. [11 PDB entries]
EC 5.4.99.6 Transferred entry: 5.4.4.2. [-]
EC 5.4.99.7 Lanosterol synthase. [1 PDB entries]
EC 5.4.99.8 Cycloartenol synthase. [-]
EC 5.4.99.9 UDP-galactopyranose mutase. [14 PDB entries]
EC 5.4.99.10 Transferred entry: 5.4.99.11. [-]
EC 5.4.99.11 Isomaltulose synthase. [1 PDB entries]
EC 5.4.99.12 tRNA pseudouridine(38-40) synthase. [4 PDB entries]
EC 5.4.99.13 Isobutyryl-CoA mutase. [-]
EC 5.4.99.14 4-carboxymethyl-4-methylbutenolide mutase. [-]
EC 5.4.99.15 (1->4)-alpha-D-glucan 1-alpha-D-glucosylmutase. [-]
EC 5.4.99.16 Maltose alpha-D-glucosyltransferase. [1 PDB entries]
EC 5.4.99.17 Squalene--hopene cyclase. [7 PDB entries]
EC 5.4.99.18 5-(carboxyamino)imidazole ribonucleotide mutase. [8 PDB entries]
EC 5.4.99.19 16S rRNA pseudouridine(516) synthase. [2 PDB entries]
EC 5.4.99.20 23S rRNA pseudouridine(2457) synthase. [1 PDB entries]
EC 5.4.99.21 23S rRNA pseudouridine(2604) synthase. [-]
EC 5.4.99.22 23S rRNA pseudouridine(2605) synthase. [1 PDB entries]
EC 5.4.99.23 23S rRNA pseudouridine(1911/1915/1917) synthase. [2 PDB entries]
EC 5.4.99.24 23S rRNA pseudouridine(955/2504/2580) synthase. [-]
EC 5.4.99.25 tRNA pseudouridine(55) synthase. [8 PDB entries]
EC 5.4.99.26 tRNA pseudouridine(65) synthase. [-]
EC 5.4.99.27 tRNA pseudouridine(13) synthase. [2 PDB entries]
EC 5.4.99.28 tRNA pseudouridine(32) synthase. [-]
EC 5.4.99.29 23S rRNA pseudouridine(746) synthase. [-]
EC 5.4.99.30 UDP-arabinopyranose mutase. [-]
EC 5.4.99.31 Thalianol synthase. [-]
EC 5.4.99.32 Protostadienol synthase. [-]
EC 5.4.99.33 Cucurbitadienol synthase. [-]
EC 5.4.99.34 Germanicol synthase. [-]
EC 5.4.99.35 Taraxerol synthase. [-]
EC 5.4.99.36 Isomultiflorenol synthase. [-]
EC 5.4.99.37 Dammaradiene synthase. [-]
EC 5.4.99.38 Camelliol C synthase. [-]
EC 5.4.99.39 Beta-amyrin synthase. [-]
EC 5.4.99.40 Alpha-amyrin synthase. [-]
EC 5.4.99.41 Lupeol synthase. [-]
EC 5.4.99.42 tRNA pseudouridine(31) synthase. [-]
EC 5.4.99.43 21S rRNA pseudouridine(2819) synthase. [-]
EC 5.4.99.44 Mitochondrial tRNA pseudouridine(27/28) synthase. [-]
EC 5.4.99.45 tRNA pseudouridine(38/39) synthase. [-]
EC 5.4.99.46 Shionone synthase. [-]
EC 5.4.99.47 Parkeol synthase. [-]
EC 5.4.99.48 Achilleol B synthase. [-]
EC 5.4.99.49 Glutinol synthase. [-]
EC 5.4.99.50 Friedelin synthase. [-]
EC 5.4.99.51 Baccharis oxide synthase. [-]
EC 5.4.99.52 Alpha-seco-amyrin synthase. [-]
EC 5.4.99.53 Marneral synthase. [-]
EC 5.4.99.54 Beta-seco-amyrin synthase. [-]
EC 5.4.99.55 Delta-amyrin synthase. [-]
EC 5.4.99.56 Tirucalladienol synthase. [-]
EC 5.4.99.57 Baruol synthase. [-]
EC 5.4.99.58 Methylornithine synthase. [-]
EC 5.4.99.59 dTDP-fucopyranose mutase. [-]
EC 5.4.99.60 Cobalt-precorrin-8 methylmutase. [-]
EC 5.4.99.61 Precorrin-8X methylmutase. [1 PDB entries]
EC 5.4.99.62 D-ribose pyranase. [1 PDB entries]
EC 5.4.99.n1 Transferred entry: 5.4.99.39. [-]
EC 5.4.99.n2 Transferred entry: 5.4.99.41. [-]

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