PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11473261-3 2001 We show that TCTPs form a structural superfamily with the Mss4/Dss4 family of proteins, which bind to the GDP/GTP free form of Rab proteins (members of the Ras superfamily) and have been termed guanine nucleotide-free chaperones (GFCs). tctps 13-18 ArfGAP with FG repeats 1 Homo sapiens 127-130