A family of nucleoporins conserved from yeast to human. THe nuclear pore complex is a large assembly composed of two essential complexes: the heptameric Nup84 complex and the heteromeric Nic96-containing complex. The Nup84 complex is composed of one copy each of Nup84, Nup85, Nup120, Nup133, Nup145C, Sec13, and Seh1. The structure of a complex of Nup85 and Seh1 was solved [3]. The N-terminus of Nup85 is inserted and forms a three-stranded blade that completes the Seh1 6-bladed beta-propeller in trans. Following its N-terminal insertion blade, Nup85 forms a compact cuboid structure composed of 20 helices, with two distinct modules, referred to as crown and trunk [3].

1: Yeast genetics to dissect the nuclear pore complex and nucleocytoplasmic trafficking. Fabre E, Hurt E; Annu Rev Genet 1997;31:277-313. PMID:9442897

2: A novel complex of nucleoporins, which includes Sec13p and a Sec13p homolog, is essential for normal nuclear pores. Siniossoglou S, Wimmer C, Rieger M, Doye V, Tekotte H, Weise C, Emig S, Segref A, Hurt EC; Cell 1996;84:265-275. PMID:8565072

3: Structural evidence for common ancestry of the nuclear pore complex and vesicle coats. Brohawn SG, Leksa NC, Spear ED, Rajashankar KR, Schwartz TU; Science. 2008;322:1369-1373. PMID:18974315