XomeDxSlice Tool

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



If cutting and pasting from another document, please be sure to list EITHER one gene symbol per line OR enter a comma-separated list.



You may also use this search to review average exome sequencing coverage by entering the gene symbol below.


What do you want to do?

Place an e-order of this Slice on a specific patient through the GeneDx Portal  
Obtain a Slice ID to order testing with a printed requisition form  
Only email the gene list to myself and/or others at this time  

Lower limb hypertonia

Select all: Gene symbolChrAvg % covered at 10xLocus TypeNoteOMIMPrevious symbol(s)Phenotype(s)Slice(s)
ATRXXq21.199.92%gene with protein product300032, 300504RAD54, JMS, MRX52Abnormal hemoglobin; Abnormality of blood and blood-forming tissues; Abnormality of fontanelles; Abnormality of metabolism/homeostasis; Absent frontal sinuses; Ambiguous genitalia; Anorexia; Anteverted nares; Autism; Brachydactyly; Bruising susceptibility; Cerebral atrophy; Clinodactyly; Coarse facial features; Constipation; Coxa valga; Cryptorchidism; Decreased testicular size; Delayed skeletal maturation; Depressed nasal bridge; Depressed nasal ridge; Dolichocephaly; Drooling; Dysphasia; Dyspnea; Epicanthus; Episodic abdominal pain; Everted lower lip vermilion; Exotropia; Fatigue; Flat face; Gastroesophageal reflux; Genu valgum; Global developmental delay; Hemivertebrae; Hemoglobin H; High palate; Hydronephrosis; Hyperactivity; Hyperreflexia; Hypertelorism; Hypochromic microcytic anemia; Hypogonadism; Hypoplasia of penis; Hypoplastic philtrum; Hypospadias; Infantile muscular hypotonia; Intellectual disability; Intellectual disability, progressive; Intellectual disability, severe; Intermittent diarrhea; Iron deficiency anemia; Kyphoscoliosis; Low-set ears; Lower limb hypertonia; Macroglossia; Malar flattening; Male pseudohermaphroditism; Microcephaly; Microcytic anemia; Micrognathia; Micropenis; Microtia; Midface retrusion; Muscular hypotonia; Myelodysplasia; Narrow forehead; Nausea and vomiting; Neutropenia; Open mouth; Optic atrophy; Paroxysmal bursts of laughter; Perimembranous ventricular septal defect; Pes planus; Phenotypic variability; Poor appetite; Posteriorly rotated ears; Postnatal growth retardation; Profound global developmental delay; Protruding tongue; Ptosis; Radial deviation of finger; Reduced alpha/beta synthesis ratio; Renal agenesis; Renal hypoplasia; Scrotal hypoplasia; Seizures; Sensorineural hearing impairment; Shawl scrotum; Short neck; Short nose; Short stature; Short upper lip; Slender finger; Spasticity; Talipes calcaneovalgus; Talipes equinovarus; Tapered finger; Telecanthus; Tented upper lip vermilion; Thick lower lip vermilion; Thin upper lip vermilion; Thrombocytopenia; Triangular nasal tip; U-Shaped upper lip vermilion; Umbilical hernia; Upslanted palpebral fissure; Vesicoureteral reflux; Vomiting; Weight loss; Wide mouth; Wide nasal bridge; Widely-spaced maxillary central incisors; X-linked dominant inheritance; X-linked recessive inheritanceDisorders of Sex Development; Obesity
FA2H16q23.1100%gene with protein product611026FAXDC1, SPG35Abnormality of the periventricular white matter; Ankle clonus; Atrophy/Degeneration affecting the brainstem; Autosomal recessive inheritance; Babinski sign; Cerebellar atrophy; Corpus callosum atrophy; Difficulty walking; Dysarthria; Dysdiadochokinesis; Dysmetria; Dysmyelinating leukodystrophy; Dystonia; Foot dorsiflexor weakness; Frequent falls; Generalized dystonia; Hypoplasia of the corpus callosum; Intellectual disability; Lower limb hypertonia; Lower limb spasticity; Mental deterioration; Neurodegeneration; Nystagmus; Oculomotor apraxia; Optic atrophy; Progressive; Seizures; Spastic paraparesis; Spastic paraplegia; Spastic tetraparesis; Strabismus; Urinary urgency
KDM1A1p36.12100%gene with protein product609132AOF2, KDM1Abnormal vertebral morphology; Autosomal dominant inheritance; Frontal bossing; Generalized hypotonia; Highly arched eyebrow; Lower limb hypertonia; Motor delay; Short thumb; Tapered finger
KDM5CXp11.2299.99%gene with protein product314690SMCX, JARID1C, MRX13Aggressive behavior; Alopecia areata; Babinski sign; Brachydactyly; Cryptorchidism; Deeply set eye; Delayed speech and language development; Diastema; Distal lower limb amyotrophy; Facial hypotonia; Furrowed tongue; High, narrow palate; Hypermetropia; Hyperreflexia; Hypoplasia of the maxilla; Intellectual disability, progressive; Intellectual disability, severe; Large hands; Low frustration tolerance; Lower limb hyperreflexia; Lower limb hypertonia; Macrocephaly; Macrotia; Mandibular prognathia; Micrognathia; Micropenis; Myopia; Pectus excavatum; Progressive spastic paraplegia; Restlessness; Seizures; Short distal phalanx of finger; Short foot; Short stature; Shuffling gait; Small forehead; Smooth philtrum; Spasticity; Talipes calcaneovarus; Talipes equinovarus; Thin upper lip vermilion; Upslanted palpebral fissure; X-linked recessive inheritance
SPG716q24.3100%gene with protein product602783CMARAbnormal mitochondrial morphology; Adult onset; Attention deficit hyperactivity disorder; Autosomal dominant inheritance; Autosomal recessive inheritance; Babinski sign; Cerebellar atrophy; Cerebral cortical atrophy; Degeneration of the lateral corticospinal tracts; Dysarthria; Dysphagia; Gait ataxia; Hyperreflexia; Impaired vibration sensation in the lower limbs; Lower limb hyperreflexia; Lower limb hypertonia; Lower limb muscle weakness; Lower limb spasticity; Memory impairment; Nasal speech; Nystagmus; Optic atrophy; Pes cavus; Ragged-red muscle fibers; Scoliosis; Slowed slurred speech; Spastic gait; Spastic paraplegia; Supranuclear gaze palsy; Urinary bladder sphincter dysfunction; Urinary incontinence; Urinary urgency

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