Term Name:	nuclear pore transmembrane ring
Synonyms:	NDC1 complex, NDC1 subcomplex
Definition:	A subcomplex of the nuclear pore complex (NPC) that spans the nuclear membrane and anchors the NPC to the nuclear envelope. In S. cerevisiae, the transmembrane ring is composed of Pom152p, Pom34p, and Ndc1p. In vertebrates, it is composed of Gp210, Ndc1, and Pom121. Components are arranged in 8-fold symmetrical 'spokes' around the central transport channel. A single 'spoke', can be isolated and is sometime referred to as the Ndc1 complex.
Ontology:	GO: Cellular Component [GO:0070762]    QuickGO    AmiGO