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Symbol
Name
ID
Arx
aristaless related homeobox
MGI:1097716
Phenotype annotations related to nervous system
*Aspects of the system are reported to show a normal phenotype.
Darker colors indicate more annotations
Human Phenotypes
Microcephaly
Drooling
Absent Achilles reflex
Hyporeflexia of lower limbs
Hyporeflexia of upper limbs
Aganglionic megacolon
Dysphagia
Extrapyramidal muscular rigidity
Spasticity
Lower limb spasticity
Spastic tetraparesis
Spastic tetraplegia
Frequent falls
Gliosis
Delayed CNS myelination
Ventriculomegaly
Lissencephaly
Pachygyria
Cerebral cortical atrophy
Thin corpus callosum
Agenesis of corpus callosum
Hypoplasia of the corpus callosum
Cerebral atrophy
Cerebellar atrophy
Global brain atrophy
Dysmetria
Slurred speech
Bradykinesia
Parkinsonism
Apraxia
Choreoathetosis
Erratic myoclonus
Action tremor
Abnormal pyramidal sign
Babinski sign
Tetraplegia
Agraphesthesia
EEG abnormality
EEG with burst suppression
Hypsarrhythmia
Echolalia
Reduced eye contact
Delayed speech and language development
Dysarthria
Astereognosis
Atypical behavior
Intellectual disability
Intellectual disability, mild
Intellectual disability, moderate
Intellectual disability, progressive
Intellectual disability, severe
Hyperreflexia
Hyporeflexia
Dyskinesia
Dystonia
Focal dystonia
Limb dystonia
Gait disturbance
Falls
Impaired tandem gait
Inability to walk
Unsteady gait
Epileptic encephalopathy
Global developmental delay
Profound global developmental delay
Severe global developmental delay
Motor delay
Specific learning disability
Seizure
Bilateral tonic-clonic seizure
Focal-onset seizure
Focal motor seizure
Generalized myoclonic seizure
Atonic seizure
Infantile spasms
Tonic seizure
Disease(s) Associated with ARX
corpus callosum agenesis-abnormal genitalia syndrome
developmental and epileptic encephalopathy 1
non-syndromic X-linked intellectual disability ARX-related
Partington syndrome
syndromic X-linked intellectual disability Hedera type
X-linked lissencephaly 2

Mouse Phenotypes
nervous system phenotype
increased susceptibility to pharmacologically induced seizures
seizures
convulsive seizures
clonic seizures
myoclonus
tonic seizures
tonic-clonic seizures
abnormal spike wave discharge
sporadic seizures
abnormal neuronal migration
abnormal forebrain development
abnormal hippocampus development
abnormal telencephalon development
abnormal cortical marginal zone morphology
abnormal cortical plate morphology
thin cortical plate
abnormal cortical ventricular zone morphology
abnormal brain interneuron morphology
decreased brain size
enlarged third ventricle
abnormal corpus callosum morphology
absent hippocampal commissure
abnormal brain internal capsule morphology
abnormal striatum morphology
abnormal ventral striatum morphology
abnormal thalamus morphology
abnormal central medial nucleus morphology
abnormal hippocampus CA3 region morphology
abnormal dentate gyrus morphology
abnormal hippocampus CA4 region morphology
absent hippocampal fimbria
abnormal telencephalon morphology
abnormal cerebral cortex morphology
abnormal neocortex morphology
abnormal somatosensory cortex morphology
abnormal olfactory bulb morphology
small olfactory bulb
abnormal postnatal subventricular zone morphology
abnormal nervous system tract morphology
loss of GABAergic neurons
abnormal cholinergic neuron morphology
abnormal glutaminergic neuron morphology
decreased neuron number
abnormal nervous system electrophysiology
abnormal brain wave pattern
Availability Mouse Genotype
Arxtm1.1Jno/Arxtm1.1Jno
Arxtm1.1Ics/Y
Arxtm1.1Jno/Y
Arxtm1Kki/Y
Arxtm2Kki/Y
Arxtm3Kki/Y
Arxtm4Kki/Y
Arxtm5Kki/Y *
Arxtm1Gldn/Arx+
Tg(mI56i-cre,EGFP)1Kc/0  (conditional)
*
Arxtm1Gldn/Y
Tg(Pou3f4-cre)32Cren/0  (conditional)
Arxtm1Gldn/Y
Tg(mI56i-cre,EGFP)1Kc/0  (conditional)
*

Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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last database update
04/30/2024
MGI 6.23
The Jackson Laboratory