| 2007 |
ANK2 loss-of-function variants in cardiomyocytes cause a spectrum of cellular phenotypes ranging from wild-type activity to severe loss-of-function, with the severity correlating with clinical arrhythmia phenotype. Ankyrin-B-dependent protein interactions regulate cardiac electrogenesis. |
Primary cardiomyocyte assays with 9 nonsynonymous ANK2 variants; loss-of-function characterization |
Circulation |
Medium |
17242276
|
| 2019 |
Giant ankyrin-B (the neurospecific alternatively spliced ANK2 isoform) localizes to periodic axonal plasma membrane domains through L1 cell-adhesion molecule and couples microtubules to the plasma membrane, thereby preventing microtubule entry into nascent axon branches and limiting axon branching. |
Mouse model of human ASD mutation; cultured neuron branching assays; live imaging; genetic loss-of-function; behavioral analysis |
Proceedings of the National Academy of Sciences of the United States of America |
High |
31285321
|
| 2024 |
Ankyrin-B is essential for scaffolding NaV1.2 (encoded by SCN2A) to the dendritic membrane of neocortical pyramidal neurons; Ank2 haploinsufficiency phenocopies intrinsic dendritic excitability and synaptic deficits seen in Scn2a+/- neurons, establishing a direct convergent link between these two ASD risk genes. |
Mouse conditional knockout (Ank2 haploinsufficiency); electrophysiology; immunofluorescence localization of NaV1.2 in dendrites |
Neuron |
High |
38290518
|
| 2017 |
ANK2 variant p.S646F (in the membrane-binding domain) causes reduced ankyrin-B expression in H9c2 cells and aberrant cardiomyocyte localization, and results in loss of normal membrane targeting of the Na/Ca exchanger (a known ankyrin-B binding partner), identifying the membrane-binding domain as critical for ankyrin-B function. |
Bacterial expression for folding assessment; H9c2 cell expression; primary cardiomyocyte localization assays; immunofluorescence of Na/Ca exchanger targeting |
Circulation. Cardiovascular genetics |
Medium |
28196901
|
| 2023 |
Ank2 knockout restricted to cortical and hippocampal excitatory neurons reduces total levels and density of Kv7.2/KCNQ2 and Kv7.3/KCNQ3 potassium channels at the axon initial segment (AIS) and causes elongated AIS, resulting in abnormally increased neuronal excitability and seizure-related death; Kv7 agonist retigabine rescues these phenotypes. |
Conditional knockout mice (Ank2-cKO); electrophysiology; immunofluorescence of AIS markers and Kv7 channels; pharmacological rescue with retigabine |
Nature communications |
High |
37321992
|
| 2023 |
ANK2 loss-of-function in hiPSC-derived neurons produces hyperactive and desynchronized neuronal network activity (measured by MEA), increased somatodendritic complexity, altered axon initial segment (AIS) structure, and impaired activity-dependent AIS plasticity. |
CRISPR/Cas9 heterozygous ANK2 LoF allele in hiPSCs; differentiation to excitatory neurons; micro-electrode array (MEA) electrophysiology; morphological characterization of AIS |
Human molecular genetics |
High |
37195288
|
| 2023 |
Prenatal (but not adolescent) deletion of Ank2 in cortical excitatory neurons and oligodendrocytes causes spontaneous seizures, network hyperexcitability/hypersynchrony, and upregulation of dendritic spine plasticity-regulatory proteins and downregulation of intermediate filaments at synaptic membranes. Ankyrin-B interactome contains autism/epilepsy risk factors and synaptic proteins. AMPA receptor antagonist perampanel restores cortical activity. |
Conditional knockout mice (Ank2-/-:Emx1-Cre vs Ank2-/-:CaMKIIα-Cre); calcium imaging of cortical slices; quantitative proteomic analysis of synaptic membranes; interactome characterization; pharmacological rescue |
Cell reports |
High |
37428632
|
| 2019 |
ANK2 variant p.L1622I displays reduced posttranslational expression in vivo, resulting in reduced cardiac ankyrin-B expression and reduced association with the Na/Ca exchanger binding partner; knock-in mice show arrhythmias, action potential duration increases, and afterdepolarizations. |
Knock-in mouse model; co-immunoprecipitation for Na/Ca exchanger association; in vivo electrophysiology; cellular action potential recordings |
Heart rhythm |
Medium |
27298202
|
| 2019 |
ANK2-E1813K diminishes currents mediated by combined wild-type and H562R KCNH2 subunits in Xenopus oocytes, indicating that ANK2 functionally interacts with KCNH2 (hERG) to modulate potassium channel current and QT interval duration. |
Voltage-clamp recordings in Xenopus oocytes with co-expression of ANK2 C-terminal regulatory domain and KCNH2 constructs; HEK293 trafficking assay |
Biochemical and biophysical research communications |
Medium |
30929919
|
| 2019 |
ANK2 (Ser3781) phosphorylation is dramatically reduced (>300-fold) in brains of PINK1-KO+A53T-SNCA mice, and ANK2/MAP1B expression depends on PINK1 levels, linking ANK2 post-translational phosphorylation to the PINK1/Parkin pathway. |
Quantitative label-free global phosphoproteomic mass spectrometry of mouse brain hemispheres; western blot validation of ANK2/MAP1B expression relative to PINK1 levels |
International journal of molecular sciences |
Medium |
31277379
|
| 2019 |
ANK2 translation occurs specifically after nuclear envelope breakdown in mouse oocytes, with Ank2.3 mRNA localizing to the forming spindle; prevention of ANK2 translation causes cytokinesis abnormalities in oocytes. The 5'UTR contains an oligo-pyrimidine motif determining cap-dependent translation. |
mRNA localization in oocytes; translation inhibition experiments; cytokinesis phenotype quantification; 5'UTR motif analysis |
Scientific reports |
Medium |
31511568
|
| 2022 |
ANK2 regulates neural stem cell differentiation and neuronal migration in the embryonic cerebral cortex; Ank2 knockdown via in utero electroporation alters expression of genes involved in neural development. |
In utero electroporation knockdown in mouse embryonic cerebral cortex; immunofluorescence; gene expression analysis |
Biochemical and biophysical research communications |
Medium |
35313230
|
| 2025 |
ANK2 deficiency induces mitochondrial cristae disorganization and membrane hyperpolarization, leading to bioenergetic stress and activation of the mitochondrial antiviral-signaling protein (MAVS); MAVS oligomerization enhances IL-6/IL-8 secretion, establishing an ANK2-MAVS-IL-8 axis connecting mitochondrial dysfunction to vascular inflammation. |
ANK2 knockdown cellular models; multi-omics (RNA-seq, proteomics, metabolomics, ATAC-seq); mitochondrial morphology and membrane potential assays; cytokine secretion measurement |
Free radical biology & medicine |
Medium |
41248744
|
| 2025 |
USP46 stabilizes ANK2 protein by deubiquitination (preventing its degradation), and elevated ANK2 in hypoxia/reoxygenation-treated cardiomyocytes promotes apoptosis, inflammation, and ferroptosis; USP46 knockdown reduces ANK2 and alleviates myocardial injury in rats. |
Cycloheximide chase assay; ubiquitination assay; siRNA knockdown; flow cytometry for apoptosis; in vivo rat I/R model |
Journal of biochemical and molecular toxicology |
Medium |
40878243
|
| 2025 |
AlphaFold modeling and mutagenesis identified a pocket in the ANK2 membrane-binding domain that engages NrCAM at the conserved FIGQY cytoplasmic motif, and key interactions between the ANK2 spectrin-binding domain and β2-Spectrin repeats 14-15. ASD missense mutation AnkB A368G (NrCAM binding pocket) disrupted NrCAM association and impaired Semaphorin 3F-induced spine pruning in cortical neurons; AnkB R977Q disrupted β2-Spectrin association. |
AlphaFold structural modeling; co-immunoprecipitation from HEK293 cells with mutant constructs; cortical neuron spine pruning assay |
bioRxivpreprint |
Medium |
|
| 2024 |
Ankyrin-B and NrCAM mediate perisomatic synaptic contact between CCK basket interneurons and pyramidal neurons in mouse mPFC; deletion of Ankyrin-B from pyramidal neurons (via Nex1Cre-ERT2:Ank2flox/flox) decreases CCK-BC synaptic puncta on PN soma, while PV-BC contacts are unaffected. |
Conditional knockout (Nex1Cre-ERT2:Ank2flox/flox); immunolabeling for CCK-BC and PV-BC synaptic markers (VGLUT3, VGAT); CCK-BC reporter mouse (tdT at Sncg locus) |
bioRxivpreprint |
Medium |
|
| 2026 |
PTBP2 splicing regulator controls ANK2 exon 36 inclusion; loss of PTBP2 promotes near-complete inclusion of ANK2 exon 36, and this isoform switch is mechanistically required for RPE-to-neuron conversion — loss of exon 36 impairs neuronal induction, and re-expression of the exon-36-containing isoform restores conversion efficiency. |
PTBP2 knockdown in hRPE-19 cells; transcriptomic and splicing analysis; functional rescue assays with ANK2 exon 36 isoform |
Journal of neurochemistry |
Medium |
41555757
|