{"Name":"Gnb5-related intellectual disability-cardiac arrhythmia syndrome","DiseaseID__c":"GARD:0017982","id":17982,"encodedName":"gnb5-related-intellectual-disability-cardiac-arrhythmia-syndrome","IsDeleted":false,"Disease_Name_Full__c":"Gnb5-related intellectual disability-cardiac arrhythmia syndrome","Xref_IDs__c":"C164154; C5568877; DOID:0081008; MEDGEN:1800300; MONDO:0014953; OMIM:617173; ORPHA:542306","USA_Estimate__c":"1,000","No_of_Specialist_Tagsa__c":6,"No_of_ClinGen_records__c":0,"No_of_GeneReviews__c":0,"No_of_HHS_records__c":0,"World_Estimate__c":"1 to 8,000","No_of_HRSA_records__c":0,"Evidence_Based_Score__c":0,"No_of_Disease_Descriptions__c":2,"Disease_Characteristics_Score__c":6,"No_of_Age_at_Onset__c":2,"Description_Source__c":"ORPHA:542306","Disease_Description__c":"A rare genetic disease characterized by intellectual disability, developmental delay, language deficits, and cardiac arrhythmia (most commonly sick sinus syndrome). Additional reported features include epilepsy, hypotonia, retinal abnormalities, nystagmus, attention deficit hyperactivity disorder, autism, and gastroesophageal reflux. The severity of the phenotype is highly variable.","GARD_Name__c":"Gnb5-related intellectual disability-cardiac arrhythmia syndrome","GARD_Synonym__c":"g protein subunit beta 5-related intellectual disability, cardiac arrhythmia syndrome; gnb5-related intellectual disability, cardiac arrhythmia syndrome; iddca; intellectual developmental disorder with cardiac arrhythmia; intellectual developmental disorder with cardiac arrhythmia; iddca; lodder-merla syndrome, type 1, with impaired intellectual development and cardiac arrhythmia","Curated_Disease_Description_Source__c":"ORPHA:542306","Curated_Disease_Description__c":"A rare genetic disease characterized by intellectual disability, developmental delay, language deficits, and cardiac arrhythmia (most commonly sick sinus syndrome). Additional reported features include epilepsy, hypotonia, retinal abnormalities, nystagmus, attention deficit hyperactivity disorder, autism, and gastroesophageal reflux. The severity of the phenotype is highly variable.","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":"1,000","Age_at_Onset_Snippet_Text__c":"as an Infant and as a Child","SourceID__c":"ORPHA:542306","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Entity","MONDO_ID__c":"MONDO:0014953","ORPHANET_ID__c":"ORPHA:542306","Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":"Síndrome de discapacidad intelectual-arritmia cardíaca por deficiencia de gnb5","Spanish_Description_Source__c":null,"Spanish_Description__c":null,"Spanish_Disease_Name__c":"síndrome de discapacidad intelectual-arritmia cardíaca por deficiencia de gnb5","Spanish_GARD_Synonym__c":null,"Category_Linearization__c":"ORPHA:97929","icd10_id__c":null,"mesh_id__c":null,"omim_id__c":null,"snomed_id__c":null,"umls_id__c":null,"GARD_Disease__c":[{"Curated_Disease_Description__c":"A rare genetic disease characterized by intellectual disability, developmental delay, language deficits, and cardiac arrhythmia (most commonly sick sinus syndrome). Additional reported features include epilepsy, hypotonia, retinal abnormalities, nystagmus, attention deficit hyperactivity disorder, autism, and gastroesophageal reflux. The severity of the phenotype is highly variable.","Curated_Disease_Description_Source__c":"ORPHA:542306","GARD_Synonym__c":"g protein subunit beta 5-related intellectual disability, cardiac arrhythmia syndrome; gnb5-related intellectual disability, cardiac arrhythmia syndrome; iddca; intellectual developmental disorder with cardiac arrhythmia; intellectual developmental disorder with cardiac arrhythmia; iddca; lodder-merla syndrome, type 1, with impaired intellectual development and cardiac arrhythmia","Name":"Gnb5-related intellectual disability-cardiac arrhythmia syndrome","Curated_USA_Estimate__c":"1,000","estimateUsa":"1,000"}],"GARD_Disease_Tag__c":[{"Tag_Name__c":"Genetics","Tag_Category__c":"Cause;Disease Category;Specialist","category_description":"Genetic diseases affect the DNA, or genetic instructions, which directs how tissues, organs, and body systems function.","curated_tag_name":"Genetic diseases"},{"Tag_Name__c":"Cardiology","Tag_Category__c":"Specialist"},{"Tag_Name__c":"Neurology","Tag_Category__c":"Disease Category;Specialist","category_description":"Neurological diseases affect the brain, spinal cord, cranial nerves, autonomic nerves, or other peripheral nerves.","curated_tag_name":"Neurological diseases"},{"Tag_Name__c":"Clinical Cardiac Electrophysiology","Tag_Category__c":"Specialist","curated_tag_name":"Clinical cardiac electrophysiology"},{"Tag_Name__c":"Neurodevelopmental disabilities","Tag_Category__c":"Specialist","curated_tag_name":"Neurodevelopmental disabilities"},{"Tag_Name__c":"Pediatrics","Tag_Category__c":"Specialist"}],"Age_At_Onset__c":[{"Age_At_Onset__c":"Childhood","Provided_By__c":"ORPHA:542306"},{"Age_At_Onset__c":"Infancy","Provided_By__c":"ORPHA:542306"}],"External_Identifier_Disease__c":[{"URL__c":"https://www.ncbi.nlm.nih.gov/books/NBK573218","Source__c":"Gene Review","Xref__c":"NBK573218"},{"URL__c":"https://www.orpha.net/en/disease/detail/542306","Source__c":"C5568877; MONDO:0014953; ORPHA:542306","Xref__c":"ORPHA:542306"},{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C5568877","Source__c":"C5568877","Xref__c":"C5568877"},{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=1800300","Source__c":"C5568877","Xref__c":"MEDGEN:1800300"},{"URL__c":"https://www.omim.org/entry/617173","Source__c":"C5568877; MONDO:0014953","Xref__c":"OMIM:617173"},{"URL__c":"https://www.ebi.ac.uk/ols4/ontologies/doid/classes?obo_id=DOID%3A0081008","Source__c":"MONDO:0014953","Xref__c":"DOID:0081008"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=1186711002","Source__c":"C5568877","Xref__c":"1186711002"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0014953","Source__c":"GARD:0017982","Xref__c":"MONDO:0014953"},{"URL__c":"https://evsexplore.semantics.cancer.gov/evsexplore/concept/ncit/C164154","Source__c":"C5568877","Xref__c":"C164154"}],"GARD_Disease_Gene__c":[{"GeneSymbol__c":"GNB5","Gene_Type__c":"protein-coding gene","Causal_Gene__c":true}],"Inheritance__c":["Autosomal recessive"],"GARD_Disease_Feature__c":[{"Provided_By__c":"ORPHA:542306","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A cone-shaped deformity of the cornea characterized by the presence of corneal distortion secondary to thinning of the apex.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000563","HPO_Synonym__c":"Bulging cornea; Conical cornea","HPO_Name__c":"Keratoconus","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:542306","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Rhythmic, involuntary oscillations of one or both eyes related to abnormality in fixation, conjugate gaze, or vestibular mechanisms.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000639","HPO_Synonym__c":"Involuntary, rapid, rhythmic eye movements","HPO_Name__c":"Nystagmus","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:542306","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Severe intellectual disability (ID) is defined as a type of ID characterized by severely sub-average adaptive functioning and intellectual functioning, with an intelligence quotient (IQ) the range of 20-34.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0010864","HPO_Synonym__c":"Early and severe mental retardation; Intellectual disability, severe; Mental retardation, severe; Severe mental retardation","HPO_Name__c":"Severe intellectual disability","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:542306","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormality involving the generation of the action potential by the sinus node and is characterized by an atrial rate inappropriate for physiological requirements. Manifestations include severe sinus bradycardia, sinus pauses or arrest, sinus node exit block, chronic atrial tachyarrhythmias, alternating periods of atrial bradyarrhythmias and tachyarrhythmias, and inappropriate responses of heart rate during exercise or stress.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0011704","HPO_Synonym__c":"Sinoatrial node disease","HPO_Name__c":"Sick sinus syndrome","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:542306","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Difficulty to maintain correct position of the head while standing or sitting. Infant head lag is observed when the head seems to flop around or lags posteriorly behind the trunk. Several articles have maintained that head lag should be absent by age 3 to 4 months.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002421","HPO_Synonym__c":"Delay in head control; Delay in head righting; Infant head lag; Poor head control","HPO_Name__c":"Poor head control","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:542306","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A reduced frequency or duration of eye contact.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000817","HPO_Synonym__c":"Poor eye contact","HPO_Name__c":"Reduced eye contact","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:542306","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A seizure is an intermittent abnormality of nervous system physiology characterized by a transient occurrence of signs and/or symptoms due to abnormal excessive or synchronous neuronal activity in the brain.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001250","HPO_Synonym__c":"Epileptic seizure; Seizures","HPO_Name__c":"Seizure","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:542306","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A delay in the achievement of motor or mental milestones in the domains of development of a child, including motor skills, speech and language, cognitive skills, and social and emotional skills. This term should only be used to describe children younger than five years of age.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001263","HPO_Synonym__c":"Delayed cognitive development; Delayed development; Delayed developmental milestones; Delayed intellectual development; Delayed milestones; Delayed psychomotor development; Developmental delay; Developmental delay in early childhood; Developmental delay, global; Developmental retardation; GDD; Lack of psychomotor development; Motor and developmental delay; Motormental retardation; Psychomotor delay; Psychomotor development deficiency; Psychomotor development failure; Psychomotor developmental delay; Retarded development; Retarded mental development; Retarded psychomotor development","HPO_Name__c":"Global developmental delay","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:542306","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Hypsarrhythmia is abnormal interictal high amplitude waves and a background of irregular spikes. There is continuous (during wakefulness), high-amplitude (>200 Hz), generalized polymorphic slowing with no organized background and multifocal spikes demonstrated by electroencephalography (EEG).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002521","HPO_Synonym__c":"Hypsarrhythmia by EEG","HPO_Name__c":"Hypsarrhythmia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Procedure_EEG"}},{"Provided_By__c":"ORPHA:542306","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Any abnormality of the cardiovascular system.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001626","HPO_Synonym__c":"Abnormality of the cardiovascular system; Cardiovascular abnormality","HPO_Name__c":"Abnormality of the cardiovascular system","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:542306","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A nonspecific term denoting progressive loss of the retinal pigment epithelium (RPE) and/or neurosensory retinal cells.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000546","HPO_Synonym__c":"Retina degeneration","HPO_Name__c":"Retinal degeneration","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:542306","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A ventricular escape rhythm occurs whenever higher-lever pacemakers in AV junction or sinus node fail to control ventricular activation. Escape rate is usually 20-40 bpm, often associated with broad QRS complexes (at least 120 ms).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0005155","HPO_Synonym__c":"Idioventricular escape rhythm","HPO_Name__c":"Ventricular escape rhythm","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:542306","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A condition in which the stomach contents leak backwards from the stomach into the esophagus through the lower esophageal sphincter.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002020","HPO_Synonym__c":"Acid reflux; Acid reflux disease; Gastro-esophageal reflux; Gastroesophageal reflux disease; GERD; GORD; Heartburn","HPO_Name__c":"Gastroesophageal reflux","Feature_System__c":"Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:542306","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Hypotonia is an abnormally low muscle tone (the amount of tension or resistance to movement in a muscle). Even when relaxed, muscles have a continuous and passive partial contraction which provides some resistance to passive stretching. Hypotonia thus manifests as diminished resistance to passive stretching. Hypotonia is not the same as muscle weakness, although the two conditions can co-exist.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001252","HPO_Synonym__c":"Low muscle tone; Low or weak muscle tone; Muscle hypotonia; Muscular hypotonia","HPO_Name__c":"Hypotonia","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:542306","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A degree of language development that is significantly below the norm for a child of a specified age.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000750","HPO_Synonym__c":"Deficiency of speech development; Delayed language development; Delayed speech; Delayed speech acquisition; Delayed speech and language development; Delayed speech development; Impaired speech and language development; Impaired speech development; Language delay; Language delayed; Language development deficit; Late-onset speech development; Poor language development; Speech and language delay; Speech and language difficulties; Speech delay","HPO_Name__c":"Delayed speech and language development","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:542306","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An abnormality of the ability (skills) to perform a precise movement of small muscles with the intent to perform a specific act. Fine motor skills are required to mediate movements of the wrists, hands, fingers, feet, and toes.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007010","HPO_Synonym__c":"Fine motor disability; Fine motor impairment; Fine motor skill dysfunction; Impaired fine motor skills","HPO_Name__c":"Poor fine motor coordination","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:542306","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Any cardiac rhythm other than the normal sinus rhythm. Such a rhythm may be either of sinus or ectopic origin and either regular or irregular. An arrhythmia may be due to a disturbance in impulse formation or conduction or both.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0011675","HPO_Synonym__c":"Abnormal heart rate; Arrhythmias; Cardiac arrhythmia; Cardiac arrhythmias; Cardiac rhythm disturbances; Heart rhythm disorders; Irregular heart beat; Irregular heartbeat","HPO_Name__c":"Arrhythmia","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:542306","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A slower than normal heart rate (in adults, slower than 60 beats per minute).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001662","HPO_Synonym__c":"Brachycardia; Slow heartbeats","HPO_Name__c":"Bradycardia","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:542306","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Failure of the foramen ovale to seal postnatally, leaving a potential conduit between the left and right cardiac atria.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001655","HPO_Synonym__c":"Persistent foramen ovale; PFO","HPO_Name__c":"Patent foramen ovale","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:542306","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Increased time for the PR interval (beginning of the P wave to the beginning of the QRS complex).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0012248","HPO_Synonym__c":"Electrocardiographic long PR interval; Lengthened PR interval on EKG","HPO_Name__c":"Prolonged PR interval","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Procedure_EKG"}},{"Provided_By__c":"ORPHA:542306","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Any abnormality of the electrical responses of various cell types in the retina as measured by electroretinography.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000512","HPO_Synonym__c":"Abnormal electroretinography; Abnormal ERG; ERG abnormal","HPO_Name__c":"Abnormal electroretinogram","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:542306","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Complete lack of development of speech and language abilities.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001344","HPO_Synonym__c":"Absent speech development; Lack of language development; Lack of speech; No speech development; No speech or language development; Nonverbal","HPO_Name__c":"Absent speech","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}}],"tags":{"Cause":["Genetics"],"Disease Category":["Genetics","Neurology"],"Specialist":["Genetics","Cardiology","Neurology","Clinical Cardiac Electrophysiology","Neurodevelopmental disabilities","Pediatrics"]},"synonyms":["g protein subunit beta 5-related intellectual disability, cardiac arrhythmia syndrome"," gnb5-related intellectual disability, cardiac arrhythmia syndrome"," iddca"," intellectual developmental disorder with cardiac arrhythmia"," intellectual developmental disorder with cardiac arrhythmia"," iddca"," lodder-merla syndrome, type 1, with impaired intellectual development and cardiac arrhythmia"]}