| 2009 |
Miro1 links mitochondria to KIF5 kinesin motor proteins, enabling microtubule-based mitochondrial movement; Ca2+ binding to Miro1 EF-hand domains at micromolar concentrations inhibits this linkage, causing mitochondrial stopping in response to glutamate/NMDA receptor activation in neurons. |
Live-cell imaging, EF-hand domain mutagenesis, glutamate/NMDA receptor stimulation in hippocampal neurons, mitochondrial motility assays |
Neuron |
High |
19249275
|
| 2008 |
Miro1 recruits the kinesin adaptor Grif-1 (TRAK2) to mitochondria in a manner dependent on the first GTPase domain of Miro1; this complex mediates anterograde mitochondrial transport into neuronal processes. |
Co-immunoprecipitation, overexpression/dominant-negative GTPase domain mutants, live mitochondrial trafficking assays in hippocampal neurons |
Molecular and cellular neurosciences |
High |
19103291
|
| 2014 |
Miro1 is a direct ubiquitination substrate of the E3 ligase Parkin; PINK1 phosphorylation of Parkin at Ser65 is required for efficient Parkin-mediated ubiquitylation of Miro1 at conserved lysines (K153, K230, K235, K330, K572) in vitro. |
In vitro E3 ligase ubiquitylation assay with full-length recombinant Parkin and Miro1, mass spectrometry identification of ubiquitination sites, active-site/disease-mutation analysis |
Open biology |
High |
24647965
|
| 2014 |
Miro1 knockout in mice causes depletion of mitochondria from corticospinal tract axons and defective retrograde axonal mitochondrial transport, resulting in progressive upper motor neuron disease; Miro1 is not required for Ca2+-mediated inhibition of mitochondrial movement or mitochondrial Ca2+ buffering per se. |
Neuron-specific and global Miro1 knockout mouse models, retrograde axonal transport assays, neurological phenotype characterization |
Proceedings of the National Academy of Sciences of the United States of America |
High |
25136135
|
| 2014 |
Miro1 regulates intercellular mitochondrial transfer from mesenchymal stem cells to epithelial cells through tunneling nanotubes; overexpression of Miro1 in MSCs enhances transfer and rescue efficacy, while knockdown reduces it. |
Miro1 overexpression/knockdown in MSCs, live mitochondrial tracking, mouse models of airway injury, in vitro co-culture assays |
The EMBO journal |
High |
24431222
|
| 2015 |
Miro1 Ca2+-sensing EF-hand domains regulate activity-driven mitochondrial positioning and confinement near synapses in astrocytic processes; Miro1-mediated mitochondrial positioning in turn reciprocally regulates intracellular Ca2+ levels in astrocytic processes. |
Live-cell confocal imaging in rat organotypic hippocampal slices, EF-hand domain mutants, neuronal activity stimulation |
The Journal of neuroscience |
High |
26631479
|
| 2015 |
PINK1/Parkin-dependent degradation of Miro1 is the mechanism by which ALS mutant SOD1 inhibits anterograde axonal mitochondrial transport; overexpression of Miro1 or ablation of PINK1 rescues the transport deficit in mutant SOD1-expressing neurons. |
Miro1 overexpression rescue experiments, PINK1 ablation, Parkin-dependent knockdown in cortical and motor neurons from SOD1 G93A mice |
Human molecular genetics |
High |
28973175
|
| 2016 |
Miro1-dependent activity-driven repositioning of mitochondria to presynaptic terminals (dependent on Miro1 Ca2+-sensing function) allows neurons to homeostatically rescale presynaptic Ca2+ signals and neurotransmitter release during prolonged activity changes. |
Live-cell imaging with genetically encoded presynaptic Ca2+ indicator (SyGCaMP5), Miro1 loss-of-function, long-term activity manipulation |
EMBO reports |
High |
28039205
|
| 2017 |
Miro1-mediated mitochondrial positioning at the cell periphery and ventral surface creates intracellular ATP:ADP gradients; loss of Miro1 causes perinuclear clustering of mitochondria, reduces peripheral ATP:ADP ratio, impairs actin dynamics, lamellipodia protrusion, focal adhesion assembly, and slows cell migration. |
Miro1-/- mouse embryonic fibroblasts, genetically encoded ATP:ADP biosensor, live-cell migration assays, focal adhesion imaging |
Molecular biology of the cell |
High |
28615318
|
| 2014 |
Miro-1 associates with the dynein motor complex and regulates redistribution of mitochondria toward the MTOC in lymphocytes in response to integrin-dependent adhesion and CXCL12 chemokine signaling, supporting lymphocyte polarity and migration. |
Co-immunoprecipitation with dynein, Miro-1 siRNA silencing, live mitochondrial tracking in lymphocytes under physiological flow conditions |
Molecular and cellular biology |
High |
24492963
|
| 2018 |
Miro1 EF-hand domain 1 mediates a cytosolic Ca2+-induced mitochondrial shape transition (MiST) distinct from canonical fission/swelling; Ca2+-dependent disruption of the Miro1/KIF5B/tubulin complex is determined by this EF1 domain, and Miro1-dependent MiST is required for autophagy/mitophagy. |
EF-hand domain mutagenesis, live-cell imaging, KIF5B co-immunoprecipitation, autophagy/mitophagy flux assays in multiple cell types |
Cell reports |
High |
29694881
|
| 2018 |
Miro1 and Miro2 are direct mitochondrial receptors for myosin XIX (Myo19); Miro1 binds directly to the C-terminal tail of Myo19, and this interaction is regulated by the nucleotide state of Miro1's N-terminal Rho-like GTPase domain; Myo19 protein stability depends on its association with Miro1/2. |
Proximity labeling (BioID), direct binding assays, in vivo recruitment assays, GTPase-domain mutants, Miro1/2 knockdown |
Journal of cell science |
High |
30111583
|
| 2019 |
Miro1 removal from the outer mitochondrial membrane upon mitochondrial depolarization is a prerequisite for mitophagy; this Miro1 removal step is impaired in >94% of Parkinson's disease patient fibroblasts; PINK1, Parkin, and LRRK2 are required for Miro1 removal from damaged mitochondria. |
Biochemical depolarization assays in patient-derived skin fibroblasts, Miro1 level measurement after CCCP treatment, genetic analysis of PINK1/Parkin/LRRK2 patients |
Cell metabolism |
High |
31564441
|
| 2013 |
DISC1 forms a complex with TRAK1 and Miro1 on mitochondria and promotes anterograde mitochondrial transport in neuronal axons; a psychiatric disease-associated DISC1 variant (37W) impairs anterograde mitochondrial transport. |
Co-immunoprecipitation, axonal mitochondrial tracking in neurons, disease variant analysis |
Human molecular genetics |
High |
24092329
|
| 2019 |
Heterozygous RHOT1 mutations (c.815G>A; c.1348C>T) in PD patients reduce mitochondrial mass, decrease ER-mitochondria contact sites (MERCs), and cause calcium dyshomeostasis and increased mitophagy in patient-derived fibroblasts. |
Live-cell imaging of MERCs and Ca2+ homeostasis, immunocytochemistry, patient-derived fibroblast models with RHOT1 mutations |
Antioxidants & redox signaling |
High |
31303019
|
| 2018 |
Miro1 (and Miro2) localize to peroxisomes and function as adaptors for microtubule-dependent peroxisome motility; peroxisome-targeted Miro1 contributes pulling forces that promote peroxisome membrane elongation and proliferation. |
Live-cell imaging, mathematical modeling of peroxisome motility, peroxisome-targeted Miro1 fusion constructs, microscopy in cellular models of peroxisome disease |
Traffic |
High |
29364559
|
| 2017 |
Splicing variants of Miro1 containing an N-terminal insertion (insertion 1, recognized by cytosolic peroxisomal receptor Pex19) localize to peroxisomes and promote long-range microtubule-dependent peroxisomal movement via TRAK2. |
Identification of splice variants, peroxisome localization imaging, Miro1 knockdown and re-expression, Pex19 receptor interaction |
The Journal of cell biology |
High |
29222186
|
| 2020 |
Peroxisomal localization of Miro1/2 (mediated by interaction of Miro transmembrane domain with Pex19 and regulated by Miro's first GTPase domain) is required for negative regulation of Drp1-dependent peroxisomal fission and maintenance of peroxisome size and morphology. |
Miro1/2 knockout cells, Drp1 fission assays, Pex19 interaction studies, GTPase domain mutants, live-cell imaging |
EMBO reports |
High |
31894645
|
| 2020 |
MCU (mitochondrial calcium uniporter) interacts directly with Miro1 through MCU's N-terminal transmembrane domain that traverses the outer mitochondrial membrane; this interaction is required for Miro1-directed mitochondrial movement, identifying Miro1 as a component of the MCU complex. |
Co-immunoprecipitation, domain deletion/truncation mapping, mitochondrial localization assays, mitochondrial movement assays in neurons |
The Journal of neuroscience |
High |
29686046
|
| 2020 |
Crystal structure of human Miro1 N-terminal GTPase domain bound to GTP at 1.7 Å reveals a non-catalytic active site configuration; SAXS data reveal a crescent-shaped assembly of the full soluble Miro1/2 domains; two conserved surfaces (SELFYY and ITIP motifs) are identified as potential dimerization or partner-binding interfaces. |
X-ray crystallography (1.7 Å), small angle X-ray scattering (SAXS), structural modeling |
Journal of structural biology |
High |
33132189
|
| 2020 |
Miro1-mediated mitochondrial positioning controls subcellular H2O2 distribution; deletion of Miro1 restricts H2O2 to perinuclear space and reduces peripheral H2O2, impairing cytosolic PRX2 oxidation, focal adhesion signaling (vinculin/p130Cas phosphorylation), and focal adhesion size. |
Miro1-/- MEFs, HyPer7 genetically encoded H2O2 biosensor, rotenone treatment, focal adhesion imaging and phospho-protein analysis |
Redox biology |
High |
33341544
|
| 2021 |
Miro1 functions as an inhibitory regulator of Mitofusin (MFN)-mediated outer mitochondrial membrane fusion in response to elevated mitochondrial Ca2+ ([Ca2+]m); Miro1 interacts with MFN as shown by Co-IP and proximity labeling proteomics; Miro1 EF-hand mutation compromises this Ca2+-dependent inhibitory effect. |
Co-immunoprecipitation, proximity labeling proteomics, MCU inhibitor and Miro1/2 knockdown, EF-hand mutagenesis, mitochondrial fusion assays |
Journal of cellular biochemistry |
High |
34431132
|
| 2022 |
Miro1 R272Q (located in the Ca2+-binding EF-hand domain) in heterozygous knock-in human dopaminergic neurons causes mitochondrial fragmentation with reduced cristae and ATP5A, dampened mitochondrial Ca2+ buffering, reduced mitochondrial respiration, and impaired catecholamine (dopamine) neurotransmitter uptake; these synaptic changes are linked to Ca2+ handling at the outer mitochondrial membrane via monoamine oxidase. |
CRISPR knock-in iPSC-derived dopaminergic neurons, MCU inhibition phenocopy, Ca2+ imaging, mitochondrial respiration assays, dopamine uptake assays |
Frontiers in molecular neuroscience |
High |
36533136
|
| 2022 |
The mDia2 formin stabilizes MIRO1 protein in cancer-associated fibroblasts; loss of mDia2 or MIRO1 reduces mitochondrial presence and ATP near the plasma membrane and CAF-tumor contact sites, causing metabolic dysfunction and suppressing protumorigenic protein secretion. |
mDia2/MIRO1 loss-of-function in fibroblasts and CAFs, ATP imaging at plasma membrane, metabolic assays, mouse squamous carcinogenesis models |
Cancer research |
High |
35997559
|
| 2025 |
Cryo-EM structure of TRAK1569-623 bound to Miro1 reveals two binding sites: TRAK1569-623 binds in a cleft between Miro1's nGTPase and first EF-hand pair; TRAK1425-428 binds in a pocket between the second EF-hand pair and cGTPase; the complex forms a dimer mediated through the second EF-hand pair and cGTPase; both sites contribute to TRAK1 mitochondrial localization as validated by mutagenesis. |
Cryo-electron microscopy structure determination, mutagenesis, binding assays, cell-based mitochondrial localization assays |
Nature communications |
High |
40615373
|
| 2025 |
A conserved region in the flexible linker between the Ubl and RING0 domains of Parkin (substrate-interacting region) directly interacts with Miro1 and is required for Parkin-mediated Miro1 ubiquitination; this provides a biochemical basis for Miro1-dependent Parkin recruitment to the mitochondrial membrane prior to full Parkin activation. |
In vitro binding and ubiquitination reconstitution, domain mapping/mutagenesis, cell-based Parkin recruitment assays |
The Journal of cell biology |
High |
40576561
|
| 2025 |
Miro1 p.R272Q knock-in iPSC-derived dopaminergic neurons and midbrain organoids show increased oxidative stress, disrupted mitochondrial bioenergetics, elevated α-synuclein, and significant dopaminergic neuron loss; the R272Q mutation (in the Ca2+-binding domain) disrupts Ca2+ homeostasis, activating calpain proteases that cleave α-synuclein. Knock-in mice (p.R285Q, mouse orthologue) accumulate phosphorylated α-synuclein in the striatum and lose dopaminergic neurons in substantia nigra. |
iPSC-derived neurons and midbrain organoids, isogenic controls, CRISPR knock-in mice, Ca2+ imaging, calpain activity assays, α-synuclein measurement, behavioral tests |
Brain : a journal of neurology |
High |
39913247
|
| 2022 |
Phosphorylation of Miro1 at Ser156 (a putative PINK1 site) regulates Miro1 steady-state protein levels and OXPHOS complex III and V abundance in mature dopaminergic neurons; S156A homozygous knock-in causes Miro1 depletion and impaired further degradation upon CCCP-induced mitophagy, and reduces mitochondrial oxygen consumption. |
CRISPR knock-in S156A iPSC-derived dopaminergic neurons, CCCP-induced mitophagy assays, mitochondrial respiration (Seahorse), OXPHOS complex analysis |
Cells |
High |
35455950
|
| 2025 |
Miro1 N-terminal GTPase domain promotes ER-mitochondria contact (ERMC) formation in differentiating neurons; ERMC formation mediated by Miro1 decreases Drp1 phosphorylation at Ser616, reducing mitochondrial fission; glucocorticoid/prenatal stress selectively downregulates Miro1 and increases Drp1-Ser616 phosphorylation causing mitochondrial fragmentation and motility arrest. |
Primary hippocampal neurons and hiPSC-derived neurons, GTPase domain mutants (Miro1P26V), AAV-mediated overexpression in vivo, Ca2+ imaging at ERMCs, Drp1 phosphorylation assays |
Cell communication and signaling |
High |
40176126
|
| 2025 |
MIRO1 controls an increase in the number of ER-mitochondria contact sites (MERCs) during G1/S cell cycle progression; MIRO1 deficiency blocks G1/S progression and cell-cycle-dependent MERCS formation; MIRO1 EF-hand domains and transmembrane domain are required for cell proliferation and MERC formation; MIRO1 interacts with VDAC1 and IP3R at MERCs (proximity-ligation assay). |
MIRO1-/- fibroblasts and VSMCs, proximity ligation assay (VDAC1/IP3R/GRP75/MIRO1), split-GFP ER/mitochondria contact assay, Ca2+ and ATP measurements, EF-hand and TM domain mutants |
Cells |
High |
40214436
|
| 2023 |
MIRO-1 interacts directly with VDAC-1 at the outer mitochondrial membrane (interaction requiring MIRO-1 E473 and VDAC-1 K163) and this interaction is required for maintaining mitochondrial membrane potential in C. elegans; MIRO-1 E473G point mutation disrupts the interaction and reduces membrane potential. |
Co-immunoprecipitation, point mutagenesis (E473G in MIRO-1; K163 in VDAC-1), membrane potential measurement in C. elegans |
EMBO reports |
High |
37306041
|
| 2020 |
Miro1-mutant (R272Q) patient-derived neurons show increased ER-mitochondria tethering (vs. fibroblasts which show decreased MERCs), impaired mitophagy flux, altered mitochondrial dynamics, and increased sensitivity to Ca2+ stress. |
Patient fibroblast-derived neurons, live-cell imaging of MERCs and mitochondrial dynamics, autophagy flux western blot, Ca2+ stress assays |
Human molecular genetics |
High |
32280985
|
| 2016 |
Miro1 regulates mitochondrial motility and distribution in C. elegans; miro-1 mutation reduces mitochondrial amount by ~50% and extends lifespan in a daf-16/FOXO-dependent manner requiring loss of miro-1 from multiple tissues. |
C. elegans miro-1 loss-of-function genetics, lifespan assays, mitochondrial quantification, tissue-specific rescue experiments |
PloS one |
Medium |
27064409
|
| 2016 |
In Xenopus embryos, Miro1 (Rhot1) is required for mitochondrial trafficking that drives aggregation of germinal granule components during primordial germ cell formation; expression of dominant-negative Rhot1ΔC (lacking the C-terminal transmembrane domain) inhibits germline-Mt aggregation and reduces PGC number. |
Dominant-negative Rhot1ΔC expression in Xenopus embryos, GFP-labeled mitochondria tracking, PGC counting at tail-bud stage |
Development, growth & differentiation |
Medium |
27585825
|
| 2021 |
Miro1-directed mitochondrial trafficking in parvalbumin-positive (PV+) GABAergic interneurons is required for proper mitochondrial distribution and axonal arborization; loss of Miro1 in PV+ interneurons increases hippocampal γ-oscillation frequency and promotes anxiolysis. |
PV+ interneuron-specific Miro1 conditional KO mice, live and fixed imaging of mitochondrial distribution, ex vivo γ-oscillation electrophysiology, behavioral tests |
eLife |
High |
34190042
|
| 2020 |
DISC1 regulates mitochondrial trafficking via the Miro1 GTPase domain; the first GTPase domain of Miro1 determines the direction of mitochondrial transport; a psychiatric disease-associated DISC1 mutation impairs Miro1's ability to transport mitochondria to synapses. |
GTPase-domain mutants of Miro1, DISC1 mutation analysis, mitochondrial trafficking direction assays in neurons, synaptic localization imaging |
Frontiers in cell and developmental biology |
Medium |
32637409
|
| 2025 |
Miro1 knockout in mesenchymal stromal cells impairs mitochondrial association with microtubules and reduces mitochondrial transfer via tunneling nanotubes to ρ0 cancer cells in vivo, delaying tumor formation and mitochondrial respiration recovery. |
Inducible Miro1 KO mouse model, fluorescently labeled mitochondria tracking in vivo, TNT in vitro transfer assays, tumor growth measurements |
Cell reports |
High |
39792553
|
| 2020 |
DAP3 triggers intrinsic apoptosis by promoting mitochondrial Ca2+ accumulation through the MCU complex, reducing cytosolic Ca2+; this reduction is sensed by Miro1, which subsequently drives mitochondrial fragmentation independently of canonical fission/fusion machinery. |
MCU depletion, Miro1 depletion, Ca2+ imaging, mitochondrial fragmentation and membrane potential assays, cell death assays |
MedComm |
Medium |
40351389
|
| 2022 |
MIRO1 depletion in mouse oocytes disrupts mitochondrial distribution (causing perinuclear and cortical mitochondrial aggregates) and impairs polar body extrusion (~20% reduction), demonstrating MIRO1 as a mitochondrial adaptor setting mitochondrial distribution during oocyte maturation. |
Oocyte-specific MIRO1 conditional KO mice, live-cell mitochondrial tracking, polar body extrusion quantification, in vitro embryo development |
Frontiers in cell and developmental biology |
High |
36325364
|
| 2023 |
miR-27-3p (highly expressed in lipotoxicity-polarized M1 macrophage exosomes) inactivates Miro1 through the miR-27-3p-Miro1 axis, causing mitochondrial fission over fusion, mitophagy impairment, NLRP3 activation, and insulin resistance; Miro1 inactivation by miR-27-3p drives type 2 diabetes development in high-fat-diet mice. |
miRNA mimic/inhibitor/antagomir in vitro and in vivo, siRNA-Miro1, exosome isolation and characterization, GTT and ITT, NLRP3 activation assays |
Diabetologia |
High |
37615690
|
| 2025 |
MIRO1 regulates VSMC proliferation by: (1) maintaining mitochondrial cristae integrity and ETC complex I activity/supercomplex formation to support ATP synthesis, and (2) enabling Ca2+-dependent mitochondrial positioning via EF-hand domains to support cell-cycle G1/S progression; muscle-specific Miro1 deletion improves insulin action and oxidative capacity. |
Smooth muscle-specific Miro1 KO mice, carotid ligation neointima model, mitochondrial cristae imaging (TEM), ETC complex activity assays, EF-hand mutants, human coronary artery VSMC knockdown |
bioRxivpreprint |
Medium |
39185180
|
| 2025 |
Accumulation of Miro1 in skeletal muscle of obese/T2D mice and humans is driven by impaired insulin-mediated AKT-Miro1 interaction at the outer mitochondrial membrane; muscle-specific Miro1 deletion improves insulin sensitivity and mitochondrial oxidative capacity; exercise training reduces skeletal muscle Miro1 accumulation and improves insulin sensitivity in T2D patients. |
Muscle-specific Miro1 KO mice, AKT-Miro1 interaction assays, randomized exercise intervention in T2D patients (N=24), mitochondrial respiration measurements |
medRxivpreprint |
Medium |
41030931
|