_EC 2.4.-.- Glycosyltransferases. 3,858 PDB entries  
EC 2.-.-.- Transferases. [47,784 PDB entries]
EC 2.4.-.- Glycosyltransferases. [3,858 PDB entries]
EC 2.4.1.- Hexosyltransferases. [1,832 PDB entries]
EC 2.4.2.- Pentosyltransferases. [1,777 PDB entries]
EC 2.4.3.- Sialyltransferases. [22 PDB entries]
EC 2.4.99.- Transferring other glycosyl groups. [227 PDB entries]