XomeDxSlice Tool

Now Available - NEW XomeDxSlice Xpanded – Custom slice testing with trio analysis for lists >150 genes.

INSTRUCTIONS (AND TIPS)

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SELECTED GENES FOR YOUR SLICE

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Phenotypes
Decreased number of large peripheral myelinated nerve fibers

Select all: Gene symbolChrAvg % covered at 10xLocus TypeNoteOMIMPrevious symbol(s)Phenotype(s)Slice(s)
APTX9p21.1100%gene with protein product606350AXA1Adult onset; Areflexia; Ataxia; Autosomal recessive inheritance; Cerebellar atrophy; Cognitive impairment; Decreased number of large peripheral myelinated nerve fibers; Dementia; Distal amyotrophy; Distal sensory impairment; Dysarthria; Dystonia; Gait ataxia; Gait disturbance; Gaze-evoked nystagmus; Hypercholesterolemia; Hypoalbuminemia; Hypometric saccades; Hyporeflexia; Juvenile onset; Limb ataxia; Medial flaring of the eyebrow; Muscle weakness; Oculomotor apraxia; Peripheral axonal degeneration; Peripheral neuropathy; Pes cavus; Progressive external ophthalmoplegia; Scoliosis; Tremor; Truncal ataxia
ELP19q31.399.97%gene with protein product603722DYS, IKBKAPAbnormal pupil morphology; Abnormal renal physiology; Acrocyanosis; Alacrima; Ataxia; Autosomal recessive inheritance; Behavioral abnormality; Congenital onset; Constipation; Corneal erosion; Corneal ulceration; Decreased corneal reflex; Decreased number of large peripheral myelinated nerve fibers; Decreased sensitivity to hypoxemia; Decreased taste sensation; Diarrhea; Elevated serum creatinine; EMG abnormality; Emotional lability; Episodic fever; Episodic hyperhidrosis; Feeding difficulties in infancy; Gait disturbance; Gastroesophageal reflux; Generalized hypotonia; Glomerulosclerosis; Growth delay; Hyperhidrosis; Hypertension; Hypohidrosis; Hyporeflexia; Impaired pain sensation; Incoordination; Increased blood urea nitrogen; Malignant hyperthermia; Muscular hypotonia; Neuropathic arthropathy; Orthostatic hypotension; Progressive; Recurrent corneal erosions; Recurrent infections due to aspiration; Recurrent respiratory infections; Scoliosis; Tachycardia; Vomiting
GDAP18q21.1199.97%gene with protein product606598CMT4AAreflexia; Autosomal dominant inheritance; Autosomal recessive inheritance; Axonal degeneration/regeneration; Axonal regeneration; Childhood onset; CNS hypomyelination; Decreased motor nerve conduction velocity; Decreased number of large peripheral myelinated nerve fibers; Decreased number of peripheral myelinated nerve fibers; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; EMG: neuropathic changes; Flexion contracture; Foot dorsiflexor weakness; Hammertoe; Heterogeneous; Hypertrophic nerve changes; Hyporeflexia; Inability to walk by childhood/adolescence; Infantile onset; Kyphoscoliosis; Limb muscle weakness; Motor delay; Neonatal onset; Onion bulb formation; Peripheral axonal degeneration; Peripheral demyelination; Peripheral hypomyelination; Peripheral neuropathy; Pes cavus; Proximal muscle weakness; Rapidly progressive; Scoliosis; Spinal deformities; Split hand; Steppage gait; Talipes equinovarus; Ulnar claw; Vocal cord paresis
HK110q22.1100%gene with protein product142600Abnormality of the foot; Abnormality of the hand; Autosomal dominant inheritance; Autosomal recessive inheritance; Axonal regeneration; Cholecystitis; Cholelithiasis; Congenital onset; Constriction of peripheral visual field; Decreased motor nerve conduction velocity; Decreased number of large peripheral myelinated nerve fibers; Difficulty walking; Distal muscle weakness; Hyperbilirubinemia; Hyporeflexia; Jaundice; Macular atrophy; Nonspherocytic hemolytic anemia; Normochromic anemia; Normocytic anemia; Nyctalopia; Optic disc pallor; Peripheral hypomyelination; Peripheral neuropathy; Photophobia; Progressive; Reduced visual acuity; Reticulocytosis; SplenomegalyHemolytic Anemia
HSPB812q24.23100%gene with protein product608014Areflexia; Areflexia of lower limbs; Autosomal dominant inheritance; Decreased amplitude of sensory action potentials; Decreased number of large peripheral myelinated nerve fibers; Distal amyotrophy; Distal lower limb muscle weakness; Distal muscle weakness; Distal sensory impairment; EMG: chronic denervation signs; EMG: neuropathic changes; Heterogeneous; Hyporeflexia; Hyporeflexia of lower limbs; Paresis of extensor muscles of the big toe; Peripheral axonal neuropathy; Pes cavus; Scoliosis
PLEKHG51p36.3199.98%gene with protein product611101Abnormal lower motor neuron morphology; Areflexia; Autosomal recessive inheritance; Childhood onset; Decreased motor nerve conduction velocity; Decreased number of large peripheral myelinated nerve fibers; Difficulty climbing stairs; Difficulty walking; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; EMG: neuropathic changes; Hammertoe; Hyperlordosis; Joint contracture of the hand; Mildly elevated creatine phosphokinase; Pes cavus; Proximal muscle weakness; Rapidly progressive; Respiratory insufficiency due to muscle weakness; Scapuloperoneal amyotrophy; Scoliosis; Spinal muscular atrophy; Talipes equinovarus; Waddling gait
POLG15q26.1100%gene with protein productVariants in the POLG gene that have a possible association with valproate-induced toxicity are not routinely reported by this test, but are available upon request.1747633-Methylglutaconic aciduria; Abdominal distention; Abdominal pain; Abnormality of the cerebral white matter; Abnormality of the extraocular muscles; Abnormality of the hand; Abnormality of the mitochondrion; Abnormality of visual evoked potentials; Adult onset; Areflexia; Astrocytosis; Ataxia; Atrophic muscularis propria; Atrophy/Degeneration involving the spinal cord; Autosomal dominant inheritance; Autosomal recessive inheritance; Bile duct proliferation; Bradykinesia; Cachexia; Cataract; Cerebellar atrophy; Cerebral cortical neurodegeneration; Choreoathetosis; Cognitive impairment; Coma; Constipation; Cortical visual impairment; Cytochrome C oxidase-negative muscle fibers; Death in early adulthood; Decreased motor nerve conduction velocity; Decreased number of large peripheral myelinated nerve fibers; Decreased sensory nerve conduction velocity; Dementia; Demyelinating peripheral neuropathy; Depressivity; Developmental regression; Diarrhea; Dilated cardiomyopathy; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; Dysarthria; Dysphagia; Dysphonia; Easy fatigability; Elevated hepatic transaminases; Elevated serum creatine phosphokinase; EMG: myopathic abnormalities; Emotional lability; Epilepsia partialis continua; Ethylmalonic aciduria; Exercise intolerance; External ophthalmoplegia; Facial palsy; Failure to thrive; Focal seizures; Foot dorsiflexor weakness; Gait ataxia; Gastroesophageal reflux; Gastrointestinal dysmotility; Gastroparesis; Generalized amyotrophy; Generalized hypotonia; Generalized muscle weakness; Generalized tonic-clonic seizures; Gliosis; Global developmental delay; Hepatic failure; Hepatomegaly; Heterogeneous; Hyperalaninemia; Hypergonadotropic hypogonadism; Hypertonia; Hypointensity of cerebral white matter on MRI; Hyporeflexia; Impaired distal proprioception; Impaired distal vibration sensation; Increased CSF protein; Increased serum lactate; Increased variability in muscle fiber diameter; Infantile onset; Intermittent diarrhea; Intestinal pseudo-obstruction; Lactic acidosis; Leukoencephalopathy; Limb ataxia; Limb muscle weakness; Malabsorption; Malnutrition; Microcephaly; Micronodular cirrhosis; Microvesicular hepatic steatosis; Migraine; Mildly elevated creatine phosphokinase; Mitochondrial myopathy; Mitral regurgitation; Mitral valve prolapse; Multiple mitochondrial DNA deletions; Muscle fiber necrosis; Muscular hypotonia; Myoclonus; Nausea; Neuronal loss in central nervous system; Nystagmus; Paralysis; Paresthesia; Parkinsonism; Parkinsonism with favorable response to dopaminergic medication; Peripheral axonal neuropathy; Pes cavus; Phenotypic variability; Poor appetite; Positive Romberg sign; Premature ovarian insufficiency; Primary amenorrhea; Progressive; Progressive external ophthalmoplegia; Progressive gait ataxia; Progressive muscle weakness; Progressive spasticity; Proximal muscle weakness; Ptosis; Ragged-red muscle fibers; Rapidly progressive; Respiratory insufficiency due to muscle weakness; Resting tremor; Rigidity; Secondary amenorrhea; Seizures; Sensorimotor neuropathy; Sensorineural hearing impairment; Sensory ataxic neuropathy; Sensory axonal neuropathy; Skeletal muscle atrophy; Small intestinal dysmotility; Spastic paraparesis; Steppage gait; Subsarcolemmal accumulations of abnormally shaped mitochondria; Testicular atrophy; Variable expressivity; Vestibular dysfunction; Visual loss; Vomiting
PRX19q13.299.98%gene with protein product605725Areflexia; Autosomal dominant inheritance; Autosomal recessive inheritance; Decreased motor nerve conduction velocity; Decreased number of large peripheral myelinated nerve fibers; Decreased number of peripheral myelinated nerve fibers; Difficulty walking; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; Foot dorsiflexor weakness; Generalized hypotonia; Hammertoe; Heterogeneous; Hypertrophic nerve changes; Hyporeflexia; Increased CSF protein; Infantile onset; Kyphoscoliosis; Limb muscle weakness; Motor delay; Onion bulb formation; Peripheral demyelination; Pes cavus; Scoliosis; Segmental peripheral demyelination/remyelination; Sensory ataxia; Skeletal muscle atrophy; Slow progression; Split hand; Steppage gait; Ulnar claw; Variable expressivity
RRM2B8q22.399.95%gene with protein product604712Abdominal distention; Abdominal pain; Abnormality of retinal pigmentation; Abnormality of the cerebral white matter; Abnormality of the extraocular muscles; Abnormality of the hand; Abnormality of the mitochondrion; Aminoaciduria; Anterior hypopituitarism; Ataxia; Atrophic muscularis propria; Autosomal dominant inheritance; Autosomal recessive inheritance; Cachexia; Decreased motor nerve conduction velocity; Decreased number of large peripheral myelinated nerve fibers; Decreased sensory nerve conduction velocity; Demyelinating peripheral neuropathy; Depressivity; Diarrhea; Distal muscle weakness; Dysarthria; Dysphagia; Easy fatigability; Elevated hepatic transaminases; EMG abnormality; Exercise intolerance; External ophthalmoplegia; Failure to thrive; Feeding difficulties; Foot dorsiflexor weakness; Gait ataxia; Gastroesophageal reflux; Generalized hypotonia; Hearing impairment; Hyperalaninemia; Increased CSF protein; Increased muscle fatiguability; Intellectual disability; Lactic acidosis; Leukoencephalopathy; Multiple mitochondrial DNA deletions; Muscular hypotonia; Nausea; Paresthesia; Peripheral axonal neuropathy; Poor appetite; Progressive; Progressive external ophthalmoplegia; Progressive intervertebral space narrowing; Progressive neurologic deterioration; Proximal tubulopathy; Ptosis; Ragged-red muscle fibers; Reduced tendon reflexes; Seizures; Sensorimotor neuropathy; Sensorineural hearing impairment; Skeletal muscle atrophy; Small intestinal dysmotility; Third degree atrioventricular block; VomitingRhabdomyolysis
SACS13q12.1299.99%gene with protein product604490Absent Achilles reflex; Autosomal recessive inheritance; Babinski sign; Cerebellar vermis atrophy; Decreased motor nerve conduction velocity; Decreased nerve conduction velocity; Decreased number of large peripheral myelinated nerve fibers; Decreased sensory nerve conduction velocity; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; Dysarthria; Dysmetria; Falls; Hammertoe; Hypermyelinated retinal nerve fibers; Hyperreflexia; Impaired smooth pursuit; Impaired vibration sensation in the lower limbs; Infantile onset; Intellectual disability; Loss of Purkinje cells in the cerebellar vermis; Nystagmus; Pes cavus; Progressive gait ataxia; Progressive truncal ataxia; Scanning speech; Spastic ataxia; Spasticity; Swan neck-like deformities of the fingers; Urinary urgency
SH3TC25q3299.99%gene with protein product608206Abnormal pupillary light reflex; Autosomal dominant inheritance; Autosomal recessive inheritance; Constrictive median neuropathy; Decreased motor nerve conduction velocity; Decreased number of large peripheral myelinated nerve fibers; Difficulty walking; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; Facial palsy; Hearing impairment; Heterogeneous; Mononeuropathy; Motor delay; Nystagmus; Peripheral axonal degeneration; Peripheral axonal neuropathy; Pes cavus; Phenotypic variability; Polyneuropathy; Prolonged brainstem auditory evoked potentials; Scoliosis; Segmental peripheral demyelination; Tongue atrophy; Tongue fasciculations; Upper limb muscle weakness
SPTLC19q22.3199.95%gene with protein product605712HSN1Abnormality of the skin; Areflexia; Autoamputation of foot; Autosomal dominant inheritance; Chronic axonal neuropathy; Decreased number of large peripheral myelinated nerve fibers; Decreased sensory nerve conduction velocity; Distal muscle weakness; Distal sensory impairment; Distal sensory loss of all modalities; Foot osteomyelitis; Hyporeflexia; Pes cavus; Sensorineural hearing impairment; Skeletal muscle atrophy
TYMP22q13.33100%gene with protein product131222MNGIE, ECGF1Abdominal distention; Abdominal pain; Abnormality of the cerebral white matter; Abnormality of the extraocular muscles; Abnormality of the hand; Abnormality of the mitochondrion; Areflexia; Atrophic muscularis propria; Autosomal recessive inheritance; Cachexia; Constipation; Cytochrome C oxidase-negative muscle fibers; Death in early adulthood; Decreased motor nerve conduction velocity; Decreased number of large peripheral myelinated nerve fibers; Decreased sensory nerve conduction velocity; Demyelinating peripheral neuropathy; Diarrhea; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; Dysphagia; Easy fatigability; Elevated hepatic transaminases; External ophthalmoplegia; Foot dorsiflexor weakness; Gastroesophageal reflux; Gastrointestinal dysmotility; Gastroparesis; Hyperalaninemia; Hypointensity of cerebral white matter on MRI; Increased CSF protein; Intermittent diarrhea; Lactic acidosis; Leukoencephalopathy; Malabsorption; Malnutrition; Mitochondrial myopathy; Multiple mitochondrial DNA deletions; Nausea; Paresthesia; Peripheral axonal neuropathy; Poor appetite; Progressive; Progressive external ophthalmoplegia; Ptosis; Ragged-red muscle fibers; Sensorimotor neuropathy; Sensorineural hearing impairment; Small intestinal dysmotility; Subsarcolemmal accumulations of abnormally shaped mitochondria; Vomiting


The gene coverage data provided by GeneDx represent an estimate based on previous results, but the specific sequencing coverage data for the genes selected may vary from individual to individual, and cannot be predicted exactly. Changes to an approved gene list can only be made by contacting GeneDx directly at 888-729-1206 and asking to speak with a member of our Whole Exome Sequencing Laboratory.


  SUGGESTED CUSTOM SLICES  

Customize below OR enter Suggested Slice ID on printed requisition form
(e.g. 706 XomeDxSlice - Slice ID: CS-Albinism).

Suggested Slice IDSuggested Gene List Name
CS-AlbinismAlbinism
CS-AAAplastic Anemia
CS-AutoImmuneAutoimmune Disorders
CS-BBSBardet-Biedl Syndrome
CS-BMFBone Marrow Failure Syndromes
CS-CVIDCommon Variable Immune Deficiency
CS-CKUTCongenital Kidney and Urinary Tract (CKUT) Anomalies
CS-DSDDisorders of Sex Development
CS-EDEctodermal Dysplasia
CS-FAFanconi Anemia
CS-AnemiaHemolytic Anemia
CS-HeterotaxyHeterotaxy
CS-IBDInflammatory Bowel Disease
CS-MaleInfMale Infertility
CS-WWSMuscular dystropy-dystroglycanopathy (Walker-Warburg)
CS-NephroticNephrotic Syndrome
CS-ObesityObesity
CS-PPKCIPalmoplantar keratoderma plus congenital ichthyosis
CS-Primary ImmunodefPrimary Immunodeficiency
CS-RhabdoRhabdomyolysis
CS-SRTDShort-Rib Thoracic Dysplasia
CS-VACTERLVACTERL Association
CS-WSWaardenburg Syndrome