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Phenotypes
Onion bulb formation

Select all: Gene symbolChrAvg % covered at 10xLocus TypeNoteOMIMPrevious symbol(s)Phenotype(s)Slice(s)
ARHGEF108p23.3100%gene with protein product608136Adult onset; Autosomal dominant inheritance; Decreased nerve conduction velocity; Onion bulb formation; Peripheral demyelination
COX6A112q24.31100%gene with protein product602072COX6AAreflexia; Autosomal recessive inheritance; Distal sensory impairment; Foot dorsiflexor weakness; Hyporeflexia; Onion bulb formation; Pes cavus; Slow progression; Steppage gait
DCAF81q23.2100%gene with protein product615820WDR42AAreflexia; Autosomal dominant inheritance; Cardiomyopathy; Decreased motor nerve conduction velocity; Distal amyotrophy; Distal muscle weakness; EMG: chronic denervation signs; Hammertoe; Hyporeflexia; Impaired distal tactile sensation; Impaired distal vibration sensation; Onion bulb formation; Peripheral axonal neuropathy; Pes cavus; Steppage gait
DNM219p13.2100%gene with protein product602378Areflexia; Autosomal dominant inheritance; Autosomal recessive inheritance; Axonal degeneration; Centrally nucleated skeletal muscle fibers; Congenital contracture; Congenital onset; Death in infancy; Decreased fetal movement; Decreased nerve conduction velocity; Decreased number of peripheral myelinated nerve fibers; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; Easy fatigability; Elevated serum creatine phosphokinase; External ophthalmoplegia; Facial palsy; Flexion contracture; Generalized hypotonia; Heterogeneous; Hyporeflexia; Juvenile onset; Motor delay; Onion bulb formation; Pes cavus; Polyhydramnios; Proximal muscle weakness; Ptosis; Respiratory insufficiency; Retinal hemorrhage; Segmental peripheral demyelination/remyelination; Sleepy facial expression; Slow progression; Small for gestational age; Thin ribs
EGR210q21.3100%gene with protein product129010KROX20Abnormality of the cranial nerves; Areflexia; Autosomal dominant inheritance; Autosomal recessive inheritance; Congenital onset; Decreased motor nerve conduction velocity; Decreased number of peripheral myelinated nerve fibers; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; Foot dorsiflexor weakness; Generalized hypotonia; Hammertoe; Heterogeneous; Hypertrophic nerve changes; Hyporeflexia; Increased CSF protein; Infantile onset; Juvenile onset; Kyphoscoliosis; Motor delay; Neonatal hypotonia; Onion bulb formation; Peripheral hypomyelination; Peripheral neuropathy; Pes cavus; Segmental peripheral demyelination/remyelination; Sensory ataxia; Split hand; Steppage gait; Ulnar claw; Upper limb muscle weakness; Variable expressivity
EGR210q21.3100%gene with protein product129010KROX20Abnormality of the cranial nerves; Areflexia; Autosomal dominant inheritance; Autosomal recessive inheritance; Congenital onset; Decreased motor nerve conduction velocity; Decreased number of peripheral myelinated nerve fibers; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; Foot dorsiflexor weakness; Generalized hypotonia; Hammertoe; Heterogeneous; Hypertrophic nerve changes; Hyporeflexia; Increased CSF protein; Infantile onset; Juvenile onset; Kyphoscoliosis; Motor delay; Neonatal hypotonia; Onion bulb formation; Peripheral hypomyelination; Peripheral neuropathy; Pes cavus; Segmental peripheral demyelination/remyelination; Sensory ataxia; Split hand; Steppage gait; Ulnar claw; Upper limb muscle weakness; Variable expressivity
FGD412p11.2199.97%gene with protein product611104Areflexia; Autosomal recessive inheritance; Decreased motor nerve conduction velocity; Decreased number of peripheral myelinated nerve fibers; Distal lower limb amyotrophy; Distal lower limb muscle weakness; Distal sensory impairment; Heterogeneous; Hyporeflexia; Infantile onset; Motor delay; Onion bulb formation; Peripheral demyelination; Pes cavus; Scoliosis; Talipes equinovarus; Upper limb muscle weakness; Waddling gait
FIG46q2199.96%gene with protein product609390KIAA0274Abnormal pelvis bone morphology; Abnormality of blood and blood-forming tissues; Abnormality of dental structure; Abnormality of the neck; Abnormality of the occipital bone; Abnormality of the parietal bone; Abnormality of the scapula; Absent nipple; Absent sternal ossification; Absent thumb; Agenesis of corpus callosum; Aggressive behavior; Amyotrophic lateral sclerosis; Ankle contracture; Anteverted nares; Anxiety; Aplasia of the 1st metacarpal; Aplasia of the distal phalanges of the hand; Aplasia of the distal phalanx of the hallux; Aplasia/hypoplasia of the 1st metatarsal; Aplasia/Hypoplasia of the clavicles; Aplasia/Hypoplasia of the distal phalanges of the hand; Aplasia/Hypoplasia of the hallux; Aplasia/Hypoplasia of the middle phalanges of the hand; Aplasia/Hypoplasia of the nails; Aplasia/Hypoplasia of the nipples; Aplastic clavicles; Areflexia; Arrhinencephaly; Autosomal dominant inheritance; Autosomal recessive inheritance; Axonal loss; Bilateral external ear deformity; Bilateral microphthalmos; Broad secondary alveolar ridge; Bulbar signs; Cardiomegaly; Cardiomyopathy; Cataract; Congenital microcephaly; Cryptorchidism; Decreased motor nerve conduction velocity; Decreased nerve conduction velocity; Decreased skull ossification; Depressivity; Distal arthrogryposis; Distal muscle weakness; Distal sensory impairment; Dolichocephaly; Dyspnea; Emotional lability; Fatigable weakness of respiratory muscles; Fatigable weakness of swallowing muscles; Fatigue; Focal seizures with impairment of consciousness or awareness; Frequent falls; Gait disturbance; Generalized hypotonia; Generalized muscle weakness; Generalized neonatal hypotonia; Global developmental delay; Hearing impairment; High forehead; High, narrow palate; Hip dislocation; Hydrops fetalis; Hypertelorism; Hypoplasia of the frontal lobes; Hypoplastic facial bones; Hyporeflexia; Hypospadias; Intrauterine growth retardation; Large fontanelles; Low-set ears; Metatarsus adductus; Microcephaly; Micrognathia; Micropenis; Muscle cramps; Neurodegeneration; Neuronal loss in central nervous system; Onion bulb formation; Pachygyria; Pain; Paralysis; Peripheral hypomyelination; Polyhydramnios; Polymicrogyria; Postnatal growth retardation; Premature birth; Premature loss of primary teeth; Progressive; Proptosis; Pulmonary arterial hypertension; Pyloric stenosis; Redundant neck skin; Respiratory failure; Rocker bottom foot; Sclerocornea; Severe failure to thrive; Severe global developmental delay; Short chin; Short clavicles; Short finger; Short middle phalanx of finger; Short philtrum; Short proximal phalanx of hallux; Short stature; Short toe; Short upper lip; Shortening of all distal phalanges of the toes; Single transverse palmar crease; Skeletal muscle atrophy; Small earlobe; Sparse and thin eyebrow; Sparse eyebrow; Sparse eyelashes; Sparse scalp hair; Spasticity; Status epilepticus; Syndactyly; Tapered finger; Tapered toe; Tetralogy of Fallot; Thin vermilion border; Toe syndactyly; Upper motor neuron dysfunction; Upslanted palpebral fissure; Variable expressivity; Ventricular septal defect; Ventriculomegaly; Visual hallucinations; Wide cranial sutures; XerostomiaDisorders of Sex Development
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
GJB1Xq13.1100%gene with protein product304040CMTX1, CMTXAbnormal nerve conduction velocity; Abnormality of the cerebral white matter; Achilles tendon contracture; Areflexia; Axonal degeneration; Decreased motor nerve conduction velocity; Decreased number of peripheral myelinated nerve fibers; Difficulty walking; Distal amyotrophy; Distal lower limb amyotrophy; Distal muscle weakness; Distal sensory impairment; Distal upper limb amyotrophy; Dysarthria; Dysphagia; Hyporeflexia; Impaired pain sensation; Incomplete penetrance; Motor aphasia; Motor delay; Onion bulb formation; Paraparesis; Pes cavus; Sensory neuropathy; Slow progression; Toe walking; Tremor; X-linked dominant inheritance; X-linked recessive inheritance
GNB43q26.3399.99%gene with protein product610863Autosomal dominant inheritance; Axonal regeneration; Distal sensory impairment; Hammertoe; Hyporeflexia; Onion bulb formation; Pes cavus; Slow progression; Steppage gait
INF214q32.3393.62%gene with protein product610982C14orf151, C14orf173Areflexia; Autosomal dominant inheritance; Axonal loss; Distal lower limb amyotrophy; Distal muscle weakness; Distal sensory impairment; Distal upper limb amyotrophy; Focal segmental glomerulosclerosis; Foot dorsiflexor weakness; Hammertoe; Hyporeflexia; Nephrotic syndrome; Onion bulb formation; Pes cavus; Progressive; Proteinuria; Split hand; Steppage gaitAplastic Anemia ; Bone Marrow Failure Syndromes ; Nephrotic Syndrome
KIF1B1p36.2299.97%gene with protein product605995CMT2A, CMT2Adrenal pheochromocytoma; Areflexia; Autosomal dominant inheritance; Axonal degeneration/regeneration; Cafe-au-lait spot; Cerebral hemorrhage; Chest pain; Congenital cataract; Congestive heart failure; Decreased motor nerve conduction velocity; Decreased number of peripheral myelinated nerve fibers; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; Dysphonia; Elevated urinary dopamine; Elevated urinary epinephrine; Elevated urinary norepinephrine; Episodic abdominal pain; Episodic hyperhidrosis; Episodic hypertension; Episodic paroxysmal anxiety; Extraadrenal pheochromocytoma; Fatigue; Flushing; Foot dorsiflexor weakness; Glomerulosclerosis; Hammertoe; Hemangioma; Heterogeneous; Hypercalcemia; Hyperhidrosis; Hypertensive retinopathy; Hyporeflexia; Nausea; Neoplasm; Onion bulb formation; Onset; Palpitations; Paraganglioma of head and neck; Paroxysmal vertigo; Peripheral axonal atrophy; Pes cavus; Pheochromocytoma; Positive regitine blocking test; Proteinuria; Pulsatile tinnitus; Recurrent paroxysmal headache; Renal artery stenosis; Sinus tachycardia; Slow progression; Steppage gait; Tachycardia; Weight loss
LITAF16p13.13100%gene with protein product603795Autosomal dominant inheritance; Decreased motor nerve conduction velocity; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; Heterogeneous; Hypertrophic nerve changes; Hyporeflexia; Juvenile onset; Onion bulb formation; Pes cavus; Segmental peripheral demyelination/remyelination
LMNA1q22100%gene with protein product150330LMN1, CMD1A, LGMD1B, PRO1, LMNL1Abnormal atrioventricular conduction; Abnormal cellular phenotype; Abnormal electrophysiology of sinoatrial node origin; Abnormal eyebrow morphology; Abnormal hair whorl; Abnormal trabecular bone morphology; Abnormality of circulating leptin level; Abnormality of retinal pigmentation; Abnormality of the Achilles tendon; Abnormality of the cerebral vasculature; Abnormality of the foot; Abnormality of the intrahepatic bile duct; Abnormality of the nail; Abnormality of the pinna; Abnormality of the pulmonary artery; Abnormality of the testis; Abnormality of the voice; Absence of pubertal development; Absence of subcutaneous fat; Absent eyebrow; Absent eyelashes; Acanthosis nigricans; Accelerated atherosclerosis; Achilles tendon contracture; Acroosteolysis of distal phalanges (feet); Acute pancreatitis; Adipose tissue loss; Adrenal hypoplasia; Advanced eruption of teeth; Alopecia; Alopecia universalis; Aminoaciduria; Angina pectoris; Aortic atherosclerosis; Aortic root aneurysm; Aortic valve calcification; Aortic valve stenosis; Aplasia of the middle phalanx of the hand; Aplasia of the phalanges of the 3rd toe; Aplasia/Hypoplasia involving the nose; Aplasia/Hypoplasia of the clavicles; Aplasia/Hypoplasia of the earlobes; Aplasia/Hypoplasia of the eyebrow; Aplasia/Hypoplastia of the eccrine sweat glands; Aplastic clavicles; Areflexia; Arrhythmia; Arteriosclerosis of small cerebral arteries; Arthrogryposis multiplex congenita; Atherosclerosis; Atrial arrhythmia; Atrial fibrillation; Atrial flutter; Atrial septal defect; Autosomal dominant inheritance; Autosomal recessive inheritance; Axial muscle weakness; Axonal degeneration/regeneration; Basal cell carcinoma; Bilateral coxa valga; Bird-like facies; Blepharophimosis; Brachydactyly; Bradycardia; Broad-based gait; Calcinosis; Calf muscle hypertrophy; Choanal atresia; Chondrocalcinosis; Clinodactyly; Congenital muscular dystrophy; Congenital pseudoarthrosis of the clavicle; Congestive heart failure; Convex nasal ridge; Coronary artery atherosclerosis; Craniofacial disproportion; Cyanosis; Decreased adiponectin level; Decreased calvarial ossification; Decreased cervical spine flexion due to contractures of posterior cervical muscles; Decreased circulating high-density lipoprotein levels; Decreased fertility; Decreased fetal movement; Decreased motor nerve conduction velocity; Decreased number of peripheral myelinated nerve fibers; Decreased serum estradiol; Decreased serum leptin; Decreased skull ossification; Decreased testosterone in males; Delayed cranial suture closure; Delayed eruption of teeth; Delayed puberty; Dental crowding; Dermal atrophy; Dermal translucency; Diabetes mellitus; Difficulty climbing stairs; Difficulty running; Difficulty walking; Dilated cardiomyopathy; Distal amyotrophy; Distal lower limb amyotrophy; Distal muscle weakness; Distal sensory impairment; Down-sloping shoulders; Downslanted palpebral fissures; Elbow flexion contracture; Elevated serum creatine phosphokinase; EMG abnormality; EMG: myopathic abnormalities; Emphysema; Enlarged peripheral nerve; Entropion; Epidermal hyperkeratosis; Failure to thrive; Fasting hyperinsulinemia; Fatiguable weakness of proximal limb muscles; Feeding difficulties; Flexion contracture; Foot dorsiflexor weakness; Fragile nails; Full cheeks; Gait disturbance; Generalized amyotrophy; Generalized hyperkeratosis; Generalized lipodystrophy; Generalized osteoporosis; Global developmental delay; Glucose intolerance; Glycosuria; Growth delay; Hepatic steatosis; Hepatomegaly; Heterogeneous; High palate; High pitched voice; Hirsutism; Hydropic placenta; Hypercholesterolemia; Hyperglycemia; Hypergonadotropic hypogonadism; Hyperinsulinemia; Hyperkeratosis; Hyperlipidemia; Hyperlordosis; Hypermetropia; Hyperphosphatemia; Hypertelorism; Hypertension; Hypertriglyceridemia; Hypodontia; Hypogonadism; Hypogonadotrophic hypogonadism; Hypohidrosis; Hypoplasia of teeth; Hypoplastic facial bones; Hypoplastic nipples; Hyporeflexia; Hypospadias; Hypotrichosis; Increased adipose tissue around the neck; Increased anterioposterior diameter of thorax; Increased facial adipose tissue; Increased intraabdominal fat; Increased intramuscular fat; Infertility; Insulin resistance; Insulin-resistant diabetes mellitus; Intermittent claudication; Intervertebral disc degeneration; Intracranial hemorrhage; Intrauterine growth retardation; Joint stiffness; Juvenile onset; Keratoconjunctivitis sicca; Kyphoscoliosis; Kyphosis; Labial pseudohypertrophy; Lack of skin elasticity; Large fontanelles; Laryngomalacia; Limb muscle weakness; Limb-girdle muscle atrophy; Limb-girdle muscle weakness; Limb-girdle muscular dystrophy; Limitation of joint mobility; Lipoatrophy; Lipodystrophy; Loss of subcutaneous adipose tissue in limbs; Loss of truncal subcutaneous adipose tissue; Low-set ears; Macrotia; Malar flattening; Meningioma; Metaphyseal widening; Micrognathia; Midface retrusion; Mildly elevated creatine phosphokinase; Minimal subcutaneous fat; Mitral regurgitation; Mitral valve calcification; Motor delay; Mottled pigmentation; Multiple joint contractures; Muscle hypertrophy of the lower extremities; Muscular dystrophy; Muscular hypotonia; Myalgia; Myocardial infarction; Myopathy; Nail dysplasia; Narrow face; Narrow mouth; Narrow nasal ridge; Narrow nasal tip; Nasal speech; Natal tooth; Neck muscle weakness; Neoplasm of the breast; Neoplasm of the lung; Neoplasm of the oral cavity; Neoplasm of the skin; Neoplasm of the small intestine; Neoplasm of the thyroid gland; Onion bulb formation; Onset; Osteoarthritis; Osteolysis; Osteolytic defects of the distal phalanges of the hand; Osteolytic defects of the phalanges of the hand; Osteopenia; Osteoporosis; Osteosarcoma; Ovarian neoplasm; Overtubulated long bones; Ovoid vertebral bodies; Papillary renal cell carcinoma; Patchy hypo- and hyperpigmentation; Patent ductus arteriosus; Pelvic girdle amyotrophy; Pelvic girdle muscle weakness; Pericardial effusion; Peripheral arterial stenosis; Peripheral axonal atrophy; Peroneal muscle atrophy; Peroneal muscle weakness; Pes cavus; Pes planus; Pili torti; Polycystic ovaries; Polyhydramnios; Poor head control; Postnatal growth retardation; Precocious atherosclerosis; Precocious puberty; Premature arteriosclerosis; Premature birth; Premature coronary artery atherosclerosis; Premature delivery because of cervical insufficiency or membrane fragility; Premature graying of hair; Premature loss of teeth; Premature ovarian insufficiency; Premature rupture of membranes; Premature skin wrinkling; Progeroid facial appearance; Progressive; Progressive clavicular acroosteolysis; Prolonged prothrombin time; Prominent forehead; Prominent scalp veins; Prominent superficial blood vessels; Prominent superficial veins; Proptosis; Proximal muscle weakness; Proximal muscle weakness in upper limbs; Proximal upper limb muscle hypertrophy; Ptosis; Pulmonary carcinoid tumor; Pulmonary hypoplasia; Reduced subcutaneous adipose tissue; Renal neoplasm; Respiratory insufficiency; Respiratory insufficiency due to muscle weakness; Restricted neck movement due to contractures; Reticulated skin pigmentation; Retinal degeneration; Retrognathia; Rocker bottom foot; Round face; Scaling skin; Scapular winging; Scleroderma; Sclerosis of hand bone; Secondary amenorrhea; Sensorineural hearing impairment; Severe muscular hypotonia; Short clavicles; Short distal phalanx of finger; Short nail; Short palm; Short palpebral fissure; Short stature; Short umbilical cord; Shoulder girdle muscle weakness; Skeletal muscle atrophy; Skeletal muscle hypertrophy; Skin erosion; Skin ulcer; Slow progression; Small placenta; Sparse and thin eyebrow; Sparse body hair; Sparse eyebrow; Sparse eyelashes; Sparse hair; Sparse or absent eyelashes; Sparse scalp hair; Spinal rigidity; Squamous cell carcinoma of the skin; Steppage gait; Stiff skin; Stillbirth; Structural foot deformity; Subcutaneous calcification; Submucous cleft hard palate; Sudden cardiac death; Supraventricular arrhythmia; Syncope; Syndactyly; Talipes; Tapering pointed ends of distal finger phalanges; Telangiectasia of the skin; Telecanthus; Temporomandibular joint ankylosis; Thin bony cortex; Thin clavicles; Thin nail; Thin ribs; Thin skin; Thin vermilion border; Thrombocytosis; Type II diabetes mellitus; Upper limb muscle weakness; Ureteral duplication; Variable expressivity; Ventricular arrhythmia; Ventricular hypertrophy; White forelock; Wide nasal bridge; Widely patent fontanelles and sutures; Wormian bones; X-linked inheritance; XanthomatosisHeterotaxy ; Obesity; Palmoplantar keratoderma plus congenital ichthyosis; Rhabdomyolysis
MFN21p36.22100%gene with protein product608507Abnormality of color vision; Abnormality of visual evoked potentials; Anosmia; Areflexia; Arthralgia; Autosomal dominant inheritance; Autosomal recessive inheritance; Axonal degeneration/regeneration; Babinski sign; Central scotoma; Decreased motor nerve conduction velocity; Decreased number of peripheral myelinated nerve fibers; Delayed gross motor development; Difficulty walking; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; Distal sensory impairment of all modalities; Dysmetric saccades; Flexion contracture; Foot dorsiflexor weakness; Gait disturbance; Hammertoe; Hepatomegaly; Hyporeflexia; Incomplete penetrance; Infantile onset; Insulin resistance; Joint stiffness; Kyphosis; Limb muscle weakness; Lumbar hyperlordosis; Multiple lipomas; Onion bulb formation; Optic atrophy; Optic disc pallor; Pain; Paresthesia; Peripheral axonal atrophy; Peripheral axonal neuropathy; Pes cavus; Positive Romberg sign; Proximal muscle weakness; Reduced tendon reflexes; Scoliosis; Slow decrease in visual acuity; Slow progression; Steppage gait; Tinnitus; Variable expressivity; Vocal cord paresis
MPZ1q23.3100%gene with protein product159440CMT1, CMT1BAbnormality of the cranial nerves; Abnormality of the eye; Abnormality of the immune system; Abnormality of the respiratory system; Areflexia; Autosomal dominant inheritance; Autosomal recessive inheritance; Axonal degeneration/regeneration; Cold-induced muscle cramps; Congenital onset; Decreased motor nerve conduction velocity; Decreased number of peripheral myelinated nerve fibers; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; Dysphagia; Foot dorsiflexor weakness; Gait ataxia; Gait disturbance; Generalized hypotonia; Hammertoe; Heterogeneous; Hypertrophic nerve changes; Hyporeflexia; Increased CSF protein; Infantile onset; Insidious onset; Juvenile onset; Kyphoscoliosis; Motor delay; Myelin outfoldings; Neonatal hypotonia; Onion bulb formation; Peripheral demyelination; Peripheral hypomyelination; Peripheral neuropathy; Pes cavus; Progressive sensorineural hearing impairment; Segmental peripheral demyelination/remyelination; Sensorineural hearing impairment; Sensory ataxia; Slow progression; Split hand; Steppage gait; Tonic pupil; Ulnar claw; Upper limb muscle weakness; Upper limb postural tremor; Variable expressivity
MPZ1q23.3100%gene with protein product159440CMT1, CMT1BAbnormality of the cranial nerves; Abnormality of the eye; Abnormality of the immune system; Abnormality of the respiratory system; Areflexia; Autosomal dominant inheritance; Autosomal recessive inheritance; Axonal degeneration/regeneration; Cold-induced muscle cramps; Congenital onset; Decreased motor nerve conduction velocity; Decreased number of peripheral myelinated nerve fibers; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; Dysphagia; Foot dorsiflexor weakness; Gait ataxia; Gait disturbance; Generalized hypotonia; Hammertoe; Heterogeneous; Hypertrophic nerve changes; Hyporeflexia; Increased CSF protein; Infantile onset; Insidious onset; Juvenile onset; Kyphoscoliosis; Motor delay; Myelin outfoldings; Neonatal hypotonia; Onion bulb formation; Peripheral demyelination; Peripheral hypomyelination; Peripheral neuropathy; Pes cavus; Progressive sensorineural hearing impairment; Segmental peripheral demyelination/remyelination; Sensorineural hearing impairment; Sensory ataxia; Slow progression; Split hand; Steppage gait; Tonic pupil; Ulnar claw; Upper limb muscle weakness; Upper limb postural tremor; Variable expressivity
MPZ1q23.3100%gene with protein product159440CMT1, CMT1BAbnormality of the cranial nerves; Abnormality of the eye; Abnormality of the immune system; Abnormality of the respiratory system; Areflexia; Autosomal dominant inheritance; Autosomal recessive inheritance; Axonal degeneration/regeneration; Cold-induced muscle cramps; Congenital onset; Decreased motor nerve conduction velocity; Decreased number of peripheral myelinated nerve fibers; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; Dysphagia; Foot dorsiflexor weakness; Gait ataxia; Gait disturbance; Generalized hypotonia; Hammertoe; Heterogeneous; Hypertrophic nerve changes; Hyporeflexia; Increased CSF protein; Infantile onset; Insidious onset; Juvenile onset; Kyphoscoliosis; Motor delay; Myelin outfoldings; Neonatal hypotonia; Onion bulb formation; Peripheral demyelination; Peripheral hypomyelination; Peripheral neuropathy; Pes cavus; Progressive sensorineural hearing impairment; Segmental peripheral demyelination/remyelination; Sensorineural hearing impairment; Sensory ataxia; Slow progression; Split hand; Steppage gait; Tonic pupil; Ulnar claw; Upper limb muscle weakness; Upper limb postural tremor; Variable expressivity
MPZ1q23.3100%gene with protein product159440CMT1, CMT1BAbnormality of the cranial nerves; Abnormality of the eye; Abnormality of the immune system; Abnormality of the respiratory system; Areflexia; Autosomal dominant inheritance; Autosomal recessive inheritance; Axonal degeneration/regeneration; Cold-induced muscle cramps; Congenital onset; Decreased motor nerve conduction velocity; Decreased number of peripheral myelinated nerve fibers; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; Dysphagia; Foot dorsiflexor weakness; Gait ataxia; Gait disturbance; Generalized hypotonia; Hammertoe; Heterogeneous; Hypertrophic nerve changes; Hyporeflexia; Increased CSF protein; Infantile onset; Insidious onset; Juvenile onset; Kyphoscoliosis; Motor delay; Myelin outfoldings; Neonatal hypotonia; Onion bulb formation; Peripheral demyelination; Peripheral hypomyelination; Peripheral neuropathy; Pes cavus; Progressive sensorineural hearing impairment; Segmental peripheral demyelination/remyelination; Sensorineural hearing impairment; Sensory ataxia; Slow progression; Split hand; Steppage gait; Tonic pupil; Ulnar claw; Upper limb muscle weakness; Upper limb postural tremor; Variable expressivity
NDRG18q24.22100%gene with protein product605262CAP43Abnormal auditory evoked potentials; Abnormality of the hand; Abnormality of visual evoked potentials; Areflexia; Autosomal recessive inheritance; Axonal loss; Decreased nerve conduction velocity; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; Gait disturbance; Hearing impairment; Hyporeflexia; Intraaxonal accumulation of curvilinear autofluorescent lipopigment storage material; Juvenile onset; Onion bulb formation; Segmental peripheral demyelination/remyelination; Talipes cavus equinovarus
NEFL8p21.2100%gene with protein product162280Areflexia; Autosomal dominant inheritance; Autosomal recessive inheritance; Clusters of axonal regeneration; Decreased motor nerve conduction velocity; Decreased number of peripheral myelinated nerve fibers; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; Flexion contracture; Foot dorsiflexor weakness; Hammertoe; Heterogeneous; Hyporeflexia; Hypotrophy of the small hand muscles; Juvenile onset; Motor delay; Myelin outfoldings; Onion bulb formation; Pes cavus; Segmental peripheral demyelination/remyelination; Split hand; Steppage gait; Ulnar claw; Variable expressivity
PMP2217p12100%gene with protein product601097Abnormality of the immune system; Acute demyelinating polyneuropathy; Areflexia; Autosomal dominant inheritance; Autosomal recessive inheritance; Childhood onset; Cold-induced muscle cramps; Decreased motor nerve conduction velocity; Decreased number of peripheral myelinated nerve fibers; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; Foot dorsiflexor weakness; Gait ataxia; Gait disturbance; Generalized hypotonia; Hammertoe; Hearing impairment; Heterogeneous; Hypertrophic nerve changes; Hyporeflexia; Increased CSF protein; Infantile onset; Insidious onset; Juvenile onset; Kyphoscoliosis; Motor delay; Muscle weakness; Myelin outfoldings; Onion bulb formation; Paresthesia; Pes cavus; Scoliosis; Segmental peripheral demyelination/remyelination; Sensorineural hearing impairment; Sensory ataxia; Slow progression; Split hand; Steppage gait; Talipes calcaneovalgus; Ulnar claw; Upper limb postural tremor; Variable expressivity; Vocal cord paralysis
PMP2217p12100%gene with protein product601097Abnormality of the immune system; Acute demyelinating polyneuropathy; Areflexia; Autosomal dominant inheritance; Autosomal recessive inheritance; Childhood onset; Cold-induced muscle cramps; Decreased motor nerve conduction velocity; Decreased number of peripheral myelinated nerve fibers; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; Foot dorsiflexor weakness; Gait ataxia; Gait disturbance; Generalized hypotonia; Hammertoe; Hearing impairment; Heterogeneous; Hypertrophic nerve changes; Hyporeflexia; Increased CSF protein; Infantile onset; Insidious onset; Juvenile onset; Kyphoscoliosis; Motor delay; Muscle weakness; Myelin outfoldings; Onion bulb formation; Paresthesia; Pes cavus; Scoliosis; Segmental peripheral demyelination/remyelination; Sensorineural hearing impairment; Sensory ataxia; Slow progression; Split hand; Steppage gait; Talipes calcaneovalgus; Ulnar claw; Upper limb postural tremor; Variable expressivity; Vocal cord paralysis
PMP2217p12100%gene with protein product601097Abnormality of the immune system; Acute demyelinating polyneuropathy; Areflexia; Autosomal dominant inheritance; Autosomal recessive inheritance; Childhood onset; Cold-induced muscle cramps; Decreased motor nerve conduction velocity; Decreased number of peripheral myelinated nerve fibers; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; Foot dorsiflexor weakness; Gait ataxia; Gait disturbance; Generalized hypotonia; Hammertoe; Hearing impairment; Heterogeneous; Hypertrophic nerve changes; Hyporeflexia; Increased CSF protein; Infantile onset; Insidious onset; Juvenile onset; Kyphoscoliosis; Motor delay; Muscle weakness; Myelin outfoldings; Onion bulb formation; Paresthesia; Pes cavus; Scoliosis; Segmental peripheral demyelination/remyelination; Sensorineural hearing impairment; Sensory ataxia; Slow progression; Split hand; Steppage gait; Talipes calcaneovalgus; Ulnar claw; Upper limb postural tremor; Variable expressivity; Vocal cord paralysis
PRPS1Xq22.399.96%gene with protein product311850DFN2Abnormal nerve conduction velocity; Absent speech; Areflexia; Areflexia of lower limbs; Ataxia; Childhood onset; Death in infancy; Decreased nerve conduction velocity; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; Drooling; Dysphagia; Gait disturbance; Generalized hypotonia; Global developmental delay; Gout; Growth delay; Hearing impairment; Hyperuricosuria; Immunodeficiency; Impaired pain sensation; Intellectual disability; Motor delay; Muscle mounding; Muscle weakness; Muscular hypotonia; Neonatal hypotonia; Nystagmus; Onion bulb formation; Optic atrophy; Peripheral neuropathy; Pes cavus; Polyneuropathy; Progressive muscle weakness; Progressive visual loss; Recurrent infections; Recurrent upper respiratory tract infections; Renal insufficiency; Respiratory insufficiency; Segmental peripheral demyelination/remyelination; Seizures; Sensorineural hearing impairment; Sensory neuropathy; Skeletal muscle hypertrophy; Spinal cord posterior columns myelin loss; Tetraplegia; Uric acid nephrolithiasis; Variable expressivity; Visual impairment; Visual loss; X-linked recessive inheritance
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
SBF122q13.3399.99%gene with protein product603560Areflexia; Autosomal recessive inheritance; Decreased nerve conduction velocity; Distal sensory impairment; Gait disturbance; Microcephaly; Onion bulb formation; Pes planus; Progressive; Scoliosis
SBF211p15.499.27%gene with protein product607697CMT4B2Areflexia; Autosomal recessive inheritance; Decreased motor nerve conduction velocity; Decreased number of peripheral myelinated nerve fibers; Difficulty walking; Distal amyotrophy; Distal muscle weakness; Distal sensory impairment; Foot dorsiflexor weakness; Glaucoma; Hammertoe; Heterogeneous; Hyporeflexia; Juvenile onset; Kyphoscoliosis; Onion bulb formation; Pes cavus; Segmental peripheral demyelination/remyelination; Sensorineural hearing impairment; Split hand; Steppage gait; Talipes equinovarus; Ulnar clawBone Marrow Failure Syndromes
SLC12A615q1499.94%gene with protein product604878KCC3, ACCPN2-3 toe syndactyly; Agenesis of corpus callosum; Aqueductal stenosis; Areflexia; Autosomal recessive inheritance; Axonal degeneration/regeneration; Brachycephaly; Decreased motor nerve conduction velocity; Decreased sensory nerve conduction velocity; EEG abnormality; EMG: chronic denervation signs; Facial asymmetry; Facial diplegia; Flexion contracture; Generalized hypotonia; Global developmental delay; Hemiplegia/hemiparesis; High palate; Hypertelorism; Hypoplasia of the maxilla; Increased CSF protein; Intellectual disability; Limb muscle weakness; Limb tremor; Long face; Low anterior hairline; Macrotia; Microcephaly; Motor delay; Motor polyneuropathy; Narrow forehead; Neonatal hypotonia; Onion bulb formation; Peripheral axonal neuropathy; Polyneuropathy; Progressive; Psychosis; Ptosis; Respiratory tract infection; Restrictive deficit on pulmonary function testing; Scoliosis; Seizures; Sensory neuropathy; Short nose; Skeletal muscle atrophy; Tapered finger; Ventriculomegaly; Wide nasal bridge


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