_EC 2.1.1.0 ????? 0 PDB entries  
EC 2.-.-.- Transferases. [17,766 PDB entries]
EC 2.1.-.- Transferring one-carbon groups. [1,721 PDB entries]
EC 2.1.1.- Methyltransferases. [1,372 PDB entries]    
EC 2.1.1.0 ????? [-]

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