Golgi apparatus {Experimental EvidencePubMed:11483508, Experimental EvidencePubMed:12447383, Experimental EvidencePubMed:25962623}. Cytoplasm, cytoskeleton {Experimental EvidencePubMed:11483508}. Cytoplasm {ECO:0000250|UniProtKB:Q8TD16}. Nucleus, nuclear pore complex {ECO:0000250|UniProtKB:Q8TD16}. Nucleus envelope {ECO:0000250|UniProtKB:Q8TD16}. Note=In interphase cells mainly localizes to the Golgi complex and colocalizes with dynactin at microtubule plus ends (PubMed:11483508). Localizes to the nuclear envelope and cytoplasmic stacks of nuclear pore complex known as annulate lamellae in a RANBP2-dependent manner during G2 phase of the cell cycle (By similarity). {ECO:0000250|UniProtKB:Q8TD16, Experimental EvidencePubMed:11483508}.
The nuclear envelope is a membrane system which surrounds the nucleoplasm of eukaryotic cells. It is composed of the nuclear lamina, nuclear pore complexes and two nuclear membranes. The space between the two membranes is called the nuclear intermembrane space.
The nuclear pore complex (NPC) constitutes the exclusive means of nucleocytoplasmic transport. NPCs allow the passive diffusion of ions and small molecules and the active bidirectional transport of macromolecules such as proteins, RNAs etc across the double-membrane nuclear envelope.The NPC is composed of at least 30 distinct subunits known as Nucleoporins (NUPs).
Acts as an adapter protein linking the dynein motor complex to various cargos and converts dynein from a non-processive to a highly processive motor in the presence of dynactin. Facilitates and stabilizes the interaction between dynein and dynactin and activates dynein processivity (the ability to move along a microtubule for a long distance without falling off the track) (PubMed:11483508, PubMed:25035494, PubMed:24986880, PubMed:22956769). Facilitates the binding of RAB6A to the Golgi by stabilizing its GTP-bound form (PubMed:25962623). Regulates coat complex coatomer protein I (COPI)- independent Golgi-endoplasmic reticulum transport via its interaction with RAB6A and recruitment of the dynein-dynactin motor complex (PubMed:12447383, PubMed:25962623). Contributes to nuclear and centrosomal positioning prior to mitotic entry through regulation of both dynein and kinesin-1. During G2 phase of the cell cycle, associates with RANBP2 at the nuclear pores and recruits dynein and dynactin to the nuclear envelope to ensure proper positioning of the nucleus relative to centrosomes prior to the onset of mitosis (PubMed:20386726). {Experimental EvidencePubMed:11483508, Experimental EvidencePubMed:12447383, Experimental EvidencePubMed:20386726, Experimental EvidencePubMed:22956769, Experimental EvidencePubMed:24986880, Experimental EvidencePubMed:25035494, Experimental EvidencePubMed:25962623}.
Myosin-9 (Cellular myosin heavy chain, type A) (Myosin heavy chain 9) (Myosin heavy chain, non-muscle IIa) (Non-muscle myosin heavy chain A) (NMMHC-A) (Non-muscle myosin heavy chain IIa) (NMMHC II-a) (NMMHC-IIA)
National and Kapodistrian University of Athens
Department of Biology
Biophysics & Bioinformatics Laboratory