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Symbol
Name
ID
Mfn2
mitofusin 2
MGI:2442230
Phenotype annotations related to nervous system
Darker colors indicate more annotations
Human Phenotypes
Anosmia
Areflexia of lower limbs
Absent patellar reflexes
Absent Achilles reflex
Abnormality of visual evoked potentials
Spasticity
Difficulty walking
Frequent falls
Basal ganglia calcification
Cerebellar gliosis
Decreased number of peripheral myelinated nerve fibers
Decreased number of large peripheral myelinated nerve fibers
Onion bulb formation
Axonal degeneration/regeneration
Peripheral axonal atrophy
Peripheral axonal neuropathy
Sensory axonal neuropathy
Hydrocephalus
Cerebellar atrophy
Abnormal spinal cord morphology
Ataxia
Dysmetria
Gait ataxia
Poor fine motor coordination
Myoclonus
Tremor
Intention tremor
Postural tremor
Hand tremor
Vocal cord paralysis
Vocal cord paresis
Babinski sign
Decreased motor nerve conduction velocity
Decreased sensory nerve conduction velocity
High pitched voice
Delayed speech and language development
Restless legs
Mental deterioration
Hyperreflexia
Areflexia
Hyporeflexia
Inability to walk by childhood/adolescence
Steppage gait
Global developmental delay
Delayed gross motor development
Peripheral neuropathy
Distal sensory impairment of all modalities
Somatic sensory dysfunction
Impaired pain sensation
Impaired temperature sensation
Paresthesia
Distal sensory impairment
Impaired vibratory sensation
Positive Romberg sign
Disease(s) Associated with MFN2
Charcot-Marie-Tooth disease type 2A2A
Charcot-Marie-Tooth disease type 2A2B
Charcot-Marie-Tooth disease type 6
multiple symmetric lipomatosis

Mouse Phenotypes
abnormal neuron mitochondrial morphology
increased neuron apoptosis
abnormal substantia nigra pars compacta morphology
abnormal cerebellum morphology
Purkinje cell degeneration
abnormal Purkinje cell dendrite morphology
small cerebellum
abnormal innervation
abnormal motor neuron morphology
abnormal axon morphology
abnormal neuron physiology
abnormal axonal transport
Availability Mouse Genotype
Mfn2tm1.1Balo/Mfn2tm1.1Balo
Mfn2tm2Dcc/Mfn2tm2Dcc
Tg(Mnx1-Mfn2*T105M,-EGFP)1Dcc/Tg(Mnx1-Mfn2*T105M,-EGFP)1Dcc
Mfn2tm1.1Arte/Mfn2tm1.1Arte
Slc6a3tm1(cre)Lrsn/Slc6a3+  (conditional)
En1tm2(cre)Wrst/En1+
Mfn2tm1Dcc/Mfn2tm3Dcc  (conditional)
Mfn2tm1Dcc/Mfn2tm3Dcc
H2az2Tg(Wnt1-cre)11Rth/H2az2+  (conditional)
Meox2tm1(cre)Sor/Meox2+
Mfn2tm1Dcc/Mfn2tm3Dcc  (conditional)
Mfn2tm1Dcc/Mfn2tm3Dcc
Tg(Pcp2-cre)2Mpin/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
04/23/2024
MGI 6.23
The Jackson Laboratory