TC-DB: An Architecture for Membrane Transport Protein Analysis. - Can V. Tran; Nelson M. Yang; Milton H. Saier Jr. (CSB, 2003)

TCDB: the Transporter Classification Database for membrane transport protein analyses and information. - Milton H. Saier Jr.; Can V. Tran; Ravi D. Barabote (Nucleic Acids Res., 2006)