_EC 1.17.2.- With a cytochrome as acceptor. 0 PDB entries  
EC 1.-.-.- Oxidoreductases. [8,621 PDB entries]
EC 1.17.-.- Acting on Ch or CH(2) groups. [272 PDB entries]
EC 1.17.2.- With a cytochrome as acceptor. [-]    
EC 1.17.2.1 Nicotinate dehydrogenase (cytochrome). [-]
EC 1.17.2.2 Lupanine 17-hydroxylase (cytochrome c). [-]

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