Importin subunit alpha; Karyopherin alpha1 (Kap-alpha1) encodes a protein that is involved in spermatogenesis and the nuclear import of the product of yki.

GTP-binding nuclear protein Ran; GTPase involved in nucleocytoplasmic transport, participating both to the import and the export from the nucleus of proteins and RNAs. Switches between a cytoplasmic GDP- and a nuclear GTP-bound state by nucleotide exchange and GTP hydrolysis. Nuclear import receptors such as importin beta bind their substrates only in the absence of GTP- bound RAN and release them upon direct interaction with GTP-bound RAN, while export receptors behave in the opposite way. Thereby, RAN controls cargo loading and release by transport receptors in the proper compartment [...]

D-Importin 7/RanBP7; Moleskin (msk) encodes an importin that contributes to protein import into the nucleus. It is involved in eye development, muscle attachment and wing cell fate specification.

Nuclear pore complex protein Nup153; Component of the nuclear pore complex (NPC), a complex required for the trafficking across the nuclear envelope. Functions as a scaffolding element in the nuclear phase of the NPC. Essential for the nuclear import of nuclear localization signal (NLS)-containing proteins in a Importin alpha/Importin beta receptor-dependent manner. Required for nuclear import of Mad. Plays a role in chromosomal organization and gene expression regulation; stimulates transcription by promoting the formation of an open chromatin environment. Binds chromatin to nucleopor [...]

Importin subunit alpha; Karyopherin alpha3 (Kap-alpha3) encodes a protein required for the nuclear import of the product of N; Belongs to the importin alpha family.

Importin subunit alpha; Pendulin (Pen) encodes a member of the Importin-alpha protein family, an essential adaptor in the Ran-GTP nuclear transport cycle binding a cargo protein to the nuclear import receptor encoded by Fs(2)Ket. In addition to nuclear protein import, the product of Pen is involved in centrosome duplication, mitotic spindle dynamics, nuclear envelope assembly, ring canal formation in the female germline, geotaxic behaviour and perception of pain.

H/ACA ribonucleoprotein complex subunit 4; Plays a central role in ribosomal RNA processing. Probable catalytic subunit of H/ACA small nucleolar ribonucleoprotein (H/ACA snoRNP) complex, which catalyzes pseudouridylation of rRNA. This involves the isomerization of uridine such that the ribose is subsequently attached to C5, instead of the normal N1. Pseudouridine ('psi') residues may serve to stabilize the conformation of rRNAs. Required for maintenance of the germline stem cell lineage during spermatogenesis; Belongs to the pseudouridine synthase TruB family.

E3 SUMO-protein ligase RanBP2; E3 SUMO-protein ligase (By similarity). Component of the nuclear pore complex (NPC), a complex required for trafficking across the nuclear envelope. Required for nuclear import of nuclear localization signal (NLS)-containing proteins in an importin alpha/importin beta-dependent manner, but also for the nuclear import of specific proteins such as phosphorylated Mad or the sesquiterpenoid juvenile hormone receptor Met as part of the juvenile hormone signal transduction pathway. Plays a role in nuclear mRNA export by recruiting the mRNA transport complex com [...]

Ribosomal RNA-processing protein 8; Probable methyltransferase required to silence rDNA. Belongs to the methyltransferase superfamily. RRP8 family.