This family consists of several eukaryotic translocon-associated protein, delta subunit precursors (TRAP-delta or SSR-delta). The exact function of this protein is unknown [1,2].

1: Translocon-associated protein TRAP delta and a novel TRAP-like protein are coordinately expressed with pro-opiomelanocortin in Xenopus intermediate pituitary. Holthuis JC, van Riel MC, Martens GJ; Biochem J 1995;312:205-213. PMID:7492314

2: Genomic organization of two novel genes on human Xq28: compact head to head arrangement of IDH gamma and TRAP delta is conserved in rat and mouse. Brenner V, Nyakatura G, Rosenthal A, Platzer M; Genomics 1997;44:8-14. PMID:9286695