Ask about this productRelated genes to: TRAK1 antibody
- Gene:
- TRAK1 NIH gene
- Name:
- trafficking kinesin protein 1
- Previous symbol:
- -
- Synonyms:
- OIP106, KIAA1042, MILT1
- Chromosome:
- 3p22.1
- Locus Type:
- gene with protein product
- Date approved:
- 2005-12-13
- Date modifiied:
- 2016-05-16
Related products to: TRAK1 antibody
Related articles to: TRAK1 antibody
- Neuronal signaling requires large amounts of ATP, making neurons particularly sensitive to defects in energy homeostasis. Mitochondrial movement and energy production are therefore regulated to align local demands with mitochondrial output. Here, we report a pathway that arrests mitochondria in response to decreases in the ATP-to-AMP ratio, an indication that ATP consumption exceeds supply. In neurons and cell lines, low concentrations of the electron transport chain inhibitor antimycin A decrease the production of ATP and concomitantly arrest mitochondrial movement without triggering mitophagy. This arrest is accompanied by the accumulation of actin fibers adjacent to the mitochondria, which serve as an anchor that resists the associated motors. This arrest is mediated by activation of the energy-sensing kinase AMPK, which phosphorylates TRAK1. This mechanism likely helps maintain cellular energy homeostasis by anchoring energy-producing mitochondria in places where they are most needed. - Source: PubMed
Publication date: 2026/01/30
Falk Jill EHenke TobiasGowrisankaran SindhujaWanderoy SimoneBasu HimanishGreally SineadSteen JudithSchwarz Thomas L - Hypoxia and mitochondrial dysfunction have been implicated in recurrent spontaneous abortion (RSA), although the precise molecular mechanisms remain unclear. This study aimed to explore hypoxia- and mitochondria-related genes (HRGs and MRGs) that may be associated with RSA using integrative bioinformatics approaches and preliminary experimental validation. - Source: PubMed
Publication date: 2025/12/19
Chen LinWei CainiGao LiliLu Dongyang - Mitochondrial dynamics are important for cellular health and include morphology, fusion, fission, vesicle formation, transport and contact formation with other organelles. Myosin XIX (Myo19) is an actin-based motor, which competes with TRAK1/2 adaptors of microtubule-based motors for binding to the outer mitochondrial membrane receptors Mitochondrial Rho GTPases 1/2 (Miro). Currently, it is poorly understood how Myo19 contributes to mitochondrial dynamics. Here, we report on a Myo19-deficient mouse model and the ultrastructure of the mitochondria from cells of Myo19-deficient mice and HEK cells, Miro-deficient HEK cells and TRAK1-deficient HAP1 cells. Myo19-deficient mitochondria in MEFs and HEK cells have morphological alterations in the inner mitochondrial membrane with reduced numbers of malformed cristae. In addition, mitochondria in Myo19-deficient cells showed fewer ER-mitochondria contact sites (ERMCSs). In accordance with the ultrastructural observations, Myo19-deficient MEFs had lower oxygen consumption rates and a reduced abundance of OXPHOS supercomplexes. The simultaneous loss of Miro1 and Miro 2 led to a comparable mitochondria phenotype and reduced ERMCSs as observed upon the loss of Myo19. However, the loss of TRAK1 caused only a reduction in the number of cristae, but not ERMCSs. These results demonstrate that both actin- and microtubule-based motors regulate cristae formation, but only Myo19 and its membrane receptor Miro regulate ERMCSs. - Source: PubMed
Publication date: 2025/10/23
Attia AyaMajstrowicz KatarzynaShembekar SamruddhiHonnert UlrikeNikolaus PetraLohmann BirgitBähler Martin - Skeletal muscle aging is associated with oxidative stress and mitochondrial dysfunction. Peroxiredoxins (PRDXs), particularly PRDX3 and PRDX5, are antioxidant enzymes that are uniquely localized to mitochondria. While PRDX3 has been reported to play a role in maintaining mitochondrial function in muscle, the specific function of PRDX5 in muscle remains unclear. This study investigated the role of PRDX5 in mitochondrial function, myonuclear distribution and muscle aging. - Source: PubMed
Suh JoonhoEom Je-HyunBaik JongminShim WonnTischfield Max AWoo Hyun AeLee Yun-Sil - Current models suggest that MIRO GTPases anchor cytoskeletal motors to the mitochondrial outer membrane (MOM). However, our previous findings indicate that the unconventional myosin, MYO19, interacts with MIRO weakly and that a MIRO-independent MOM-localizing domain interacts more tightly with the MOM. To test the hypothesis that other MIRO interactors may also have MIRO-independent MOM binding, we examined interactions between TRAK proteins (microtubule motor-mitochondria adaptor proteins) and the MOM via quantitative fluorescence microscopy and steady-state kinetic approaches. Using GFP-TRAK truncations expressed in MIRO1-2 double knockout mouse embryonic fibroblasts, we identified a MIRO-independent mitochondrial-binding domain in the C-terminus of TRAK1 and TRAK2, with a MOM localization pattern similar to what we observed for full-length GFP-TRAK proteins. The MIRO-binding domains (MBD) of the TRAK proteins were only able to localize to mitochondria when MIRO is expressed. Importantly, fluorescence recovery after photobleaching (FRAP) demonstrated that the steady-state kinetics of TRAK/MIRO interactions were faster exchanging than for either full-length TRAK or the TRAK C-terminal MOM-binding domain expressed alone. These data support a model where TRAK/MIRO associations may be serving functions beyond anchoring cytoskeletal motors and their adapters to the MOM. - Source: PubMed
Publication date: 2025/10/23
Mitchell LiliReda Kathryn EFatima HijabVasquez Claudia EQuintero-Carmona Omar A