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Abnormality of saccadic eye movements

Select all: Gene symbolChrAvg % covered at 10xLocus TypeNoteOMIMPrevious symbol(s)Phenotype(s)Slice(s)
INPP5E9q34.3100%gene with protein product613037JBTS1Abnormality of saccadic eye movements; Abnormality of the foot; Agenesis of cerebellar vermis; Aggressive behavior; Anteverted nares; Aplasia/Hypoplasia of the cerebellum; Apnea; Ataxia; Autosomal recessive inheritance; Biparietal narrowing; Brainstem dysplasia; Cataract; Central apnea; Cerebellar vermis hypoplasia; Childhood-onset truncal obesity; Chorioretinal coloboma; Congenital hepatic fibrosis; Delayed speech and language development; Dysgenesis of the cerebellar vermis; Elevated hepatic transaminases; Elongated superior cerebellar peduncle; Enlarged fossa interpeduncularis; Epicanthus; Episodic tachypnea; Feeding difficulties; Feeding difficulties in infancy; Gait disturbance; Generalized hypotonia; Global developmental delay; Hemifacial spasm; Hepatic fibrosis; Hepatomegaly; Heterogeneous; Highly arched eyebrow; Hyperactivity; Hyperreflexia; Hypoplasia of the brainstem; Impaired smooth pursuit; Intellectual disability; Intellectual disability, moderate; Intrahepatic biliary atresia; Iris coloboma; Long face; Low-set ears; Macrocephaly; Macroglossia; Micropenis; Molar tooth sign on MRI; Muscular hypotonia; Neonatal breathing dysregulation; Nephropathy; Nystagmus; Oculomotor apraxia; Optic nerve coloboma; Phenotypic variability; Postaxial hand polydactyly; Prominent forehead; Protruding tongue; Ptosis; Retinal dystrophy; Self-mutilation; Triangular-shaped open mouth; Truncal obesity; Visual impairmentBardet-Biedl Syndrome ; Heterotaxy ; Obesity
KIF1A2q37.3100%gene with protein product601255ATSV, C2orf20, SPG30Abnormal cortical bone morphology; Abnormality of epiphysis morphology; Abnormality of eye movement; Abnormality of metabolism/homeostasis; Abnormality of movement; Abnormality of saccadic eye movements; Abnormality of the ankles; Abnormality of the eye; Abnormality of the hip bone; Abnormality of the knee; Abnormality of the palate; Abnormality of upper lip; Acral ulceration leading to autoamputation of digits; Anhidrosis; Ankle clonus; Anteverted nares; Areflexia; Ataxia; Atrophy/Degeneration affecting the brainstem; Autosomal dominant inheritance; Autosomal recessive inheritance; Babinski sign; Biparietal narrowing; Cerebellar atrophy; Cerebral cortical atrophy; Decreased nerve conduction velocity; Decreased number of peripheral myelinated nerve fibers; Decreased sensory nerve conduction velocity; Decreased taste sensation; Distal amyotrophy; Distal sensory impairment; Drowsiness; Dysmetria; Dystrophic fingernails; Dystrophic toenail; Edema of the lower limbs; Epicanthus; Episodic hyperhidrosis; External ear malformation; Feeding difficulties; Feeding difficulties in infancy; Foot acroosteolysis; Full cheeks; Gastroesophageal reflux; Generalized hypotonia; Gingival overgrowth; Global developmental delay; Hydrocephalus; Hyperhidrosis; Hyperlordosis; Hyperreflexia; Hyporeflexia; Hypsarrhythmia; Infantile onset; Infantile spasms; Intellectual disability, severe; Leg muscle stiffness; Limitation of joint mobility; Lower limb amyotrophy; Lower limb hyperreflexia; Lower limb muscle weakness; Lower limb spasticity; Macrotia; Malar flattening; Microcephaly; Midface retrusion; Open mouth; Optic atrophy; Osteolytic defects of the phalanges of the hand; Painless fractures due to injury; Palpebral edema; Paronychia; Peripheral axonal neuropathy; Peripheral edema; Peripheral neuropathy; Porencephalic cyst; Progressive; Progressive spastic paraplegia; Recurrent respiratory infections; Reduced bone mineral density; Scissor gait; Sensorimotor neuropathy; Severe muscular hypotonia; Short nose; Skeletal muscle atrophy; Slow progression; Spastic gait; Spastic paraplegia; Tapered finger; Unsteady gait; Urinary bladder sphincter dysfunction; Variable expressivity; Ventriculomegaly; Visual loss; Wormian bones
SCP21p32.399.82%gene with protein product184755Abnormal motor neuron morphology; Abnormality of saccadic eye movements; Abnormality of thalamus morphology; Autosomal recessive inheritance; Azoospermia; Head tremor; Hypergonadotropic hypogonadism; Hyposmia; Intention tremor; Leukoencephalopathy; Peripheral neuropathy; Torticollis
TMEM21611q13.1100%gene with protein product613277CORS2, MKS2Abnormal chorioretinal morphology; Abnormal renal physiology; Abnormality of saccadic eye movements; Abnormality of the corpus callosum; Abnormality of the foot; Agenesis of cerebellar vermis; Anencephaly; Aplasia/Hypoplasia of the iris; Apnea; Ataxia; Autistic behavior; Autosomal recessive inheritance; Bile duct proliferation; Biparietal narrowing; Blindness; Bowing of the long bones; Brainstem dysplasia; Cataract; Central apnea; Cerebellar vermis hypoplasia; Chorioretinal coloboma; Cleft palate; Congenital hepatic fibrosis; Cryptorchidism; Depressed nasal bridge; Depressed nasal ridge; Dolichocephaly; Dysgenesis of the cerebellar vermis; Elongated superior cerebellar peduncle; Encephalocele; Enlarged fossa interpeduncularis; Episodic tachypnea; Esotropia; Failure to thrive; Frontal bossing; Full cheeks; Generalized hypotonia; Global developmental delay; Heterogeneous; High palate; Hydrocephalus; Hypertelorism; Hypoplasia of the brainstem; Hypoplastic male external genitalia; Impaired smooth pursuit; Intellectual disability; Intrauterine growth retardation; Iris coloboma; Lobar holoprosencephaly; Long face; Low-set ears; Low-set, posteriorly rotated ears; Macrocephaly; Meningocele; Microcephaly; Microcornea; Micrognathia; Microphthalmia; Molar tooth sign on MRI; Multicystic kidney dysplasia; Muscular hypotonia; Neonatal breathing dysregulation; Nephronophthisis; Nephropathy; Nystagmus; Oculomotor apraxia; Oligohydramnios; Optic atrophy; Optic nerve coloboma; Phenotypic variability; Polydactyly; Postaxial foot polydactyly; Postaxial hand polydactyly; Ptosis; Renal cyst; Retinal dystrophy; Sclerocornea; Sloping forehead; Tachypnea; Talipes; Thickened superior cerebellar peduncle; Visual impairmentHeterotaxy

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.


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-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-IBDInflammatory Bowel Disease
CS-MaleInfMale Infertility
CS-WWSMuscular dystropy-dystroglycanopathy (Walker-Warburg)
CS-NephroticNephrotic Syndrome
CS-PPKCIPalmoplantar keratoderma plus congenital ichthyosis
CS-Primary ImmunodefPrimary Immunodeficiency
CS-SRTDShort-Rib Thoracic Dysplasia
CS-WSWaardenburg Syndrome