{"Name":"SSR4-congenital disorder of glycosylation","DiseaseID__c":"GARD:0012405","id":12405,"encodedName":"ssr4-congenital-disorder-of-glycosylation","IsDeleted":false,"Disease_Name_Full__c":"SSR4-congenital disorder of glycosylation","Xref_IDs__c":"733115009; C4012395; DOID:0080574; MEDGEN:860832; MONDO:0010490; OMIM:300934; ORPHA:370927","USA_Estimate__c":"1,000","No_of_Specialist_Tagsa__c":5,"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":4,"Disease_Characteristics_Score__c":8,"No_of_Age_at_Onset__c":2,"Description_Source__c":"MONDO:0010490","Disease_Description__c":"SSR4-CDG is a form of congenital disorders of N-linked glycosylation characterized by neurologic abnormalities (global developmental delay in language, social skills and fine and gross motor development, intellectual disability, hypotonia, microcephaly, seizures/epilepsy), facial dysmorphism (deep set eyes, large ears, hypoplastic vermillion of upper lip, large mouth with widely spaced teeth), feeding problems often due to chewing difficulties and aversion to food with certain textures, failure to thrive, gastrointestinal abnormalities (reflux or vomiting) and strabismus. The disease is caused by mutations in the gene <i> SSR4</i> (Xq28).","GARD_Name__c":"SSR4-congenital disorder of glycosylation","GARD_Synonym__c":"carbohydrate deficient glycoprotein syndrome type iy; cdg iy; cdg syndrome type iy; cdg-iy; cdg1y; congenital disorder of glycosylation type 1y; congenital disorder of glycosylation type iy; congenital disorder of glycosylation, type iy, x-linked recessive; signal sequence receptor subunit 4 congenital disorder of glycosylation; ssr4-cdg; ssr4-cdg - signal sequence receptor subunit 4 congenital disorder of glycosylation","Curated_Disease_Description_Source__c":"MONDO:0010490","Curated_Disease_Description__c":"SSR4-CDG is a form of congenital disorders of N-linked glycosylation characterized by neurologic abnormalities (global developmental delay in language, social skills and fine and gross motor development, intellectual disability, hypotonia, microcephaly, seizures/epilepsy), facial dysmorphism (deep set eyes, large ears, hypoplastic vermillion of upper lip, large mouth with widely spaced teeth), feeding problems often due to chewing difficulties and aversion to food with certain textures, failure to thrive, gastrointestinal abnormalities (reflux or vomiting) and strabismus. The disease is caused by mutations in the gene  SSR4 (Xq28).","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":"1,000","Age_at_Onset_Snippet_Text__c":"as a Newborn and as an Infant","SourceID__c":"ORPHA:370927","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Entity","MONDO_ID__c":"MONDO:0010490","ORPHANET_ID__c":"ORPHA:370927","Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":"Ssr4-cdg","Spanish_Description_Source__c":"ORPHA:370927","Spanish_Description__c":"Es un tipo de trastorno congénito de la N-glicosilación caracterizado por anomalías neurológicas (retraso global en el desarrollo del lenguaje, de las habilidades sociales y motor fino y grueso, discapacidad intelectual, hipotonía, microcefalia, convulsiones / epilepsia), dismorfia facial (ojos hundidos, orejas grandes, bermellón del labio superior hipoplásico, boca grande y dientes muy separados) problemas en la alimentación debidos, a menudo, a dificultades para masticar y aversión a ciertas texturas de los alimentos, fallo de medro, anomalías gastrointestinales (reflujo o vómitos) y estrabismo. La enfermedad está causada por mutaciones en el gen <i>SSR4</i> (Xq28).","Spanish_Disease_Name__c":"ssr4-cdg","Spanish_GARD_Synonym__c":"cdg-iy; cdg1y; síndrome cdg tipo iy; síndrome de glicoproteínas deficientes en carbohidratos tipo iy; trastorno congénito de la glicosilación tipo 1y; trastorno congénito de la glicosilación tipo iy","Category_Linearization__c":"ORPHA:98006","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":"SSR4-CDG is a form of congenital disorders of N-linked glycosylation characterized by neurologic abnormalities (global developmental delay in language, social skills and fine and gross motor development, intellectual disability, hypotonia, microcephaly, seizures/epilepsy), facial dysmorphism (deep set eyes, large ears, hypoplastic vermillion of upper lip, large mouth with widely spaced teeth), feeding problems often due to chewing difficulties and aversion to food with certain textures, failure to thrive, gastrointestinal abnormalities (reflux or vomiting) and strabismus. The disease is caused by mutations in the gene  SSR4 (Xq28).","Curated_Disease_Description_Source__c":"MONDO:0010490","GARD_Synonym__c":"carbohydrate deficient glycoprotein syndrome type iy; cdg iy; cdg syndrome type iy; cdg-iy; cdg1y; congenital disorder of glycosylation type 1y; congenital disorder of glycosylation type iy; congenital disorder of glycosylation, type iy, x-linked recessive; signal sequence receptor subunit 4 congenital disorder of glycosylation; ssr4-cdg; ssr4-cdg - signal sequence receptor subunit 4 congenital disorder of glycosylation","Name":"SSR4-congenital disorder of glycosylation","Curated_USA_Estimate__c":"1,000","estimateUsa":"1,000"}],"Organization_Supported_Diseases__c":[{"Account_Name__c":"CDG & Allies - PPAIN","Website__c":"https://worldcdg.org/hashtags/cdg-allies-ppain"},{"Account_Name__c":"CDG CARE","Website__c":"https://cdgcare.org/"},{"Account_Name__c":"CDG Canada","Website__c":"https://canadacdg.com/"}],"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":"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":"Inborn Errors of Metabolism","Tag_Category__c":"Cause;Disease Category","category_description":"Inherited metabolic diseases, or inborn errors of metabolism, are a group of genetic diseases that affect the ability of the body's cells to convert food into energy.","curated_tag_name":"Inherited metabolic diseases"},{"Tag_Name__c":"Congenital Abnormality","Tag_Category__c":"Disease Category","category_description":"Birth defects are structural changes present at birth that can affect almost any part of the body, including how the body looks, works, or both.","curated_tag_name":"Birth defects"},{"Tag_Name__c":"Epilepsy","Tag_Category__c":"Account;Specialist","curated_tag_name":"Epilepsy"},{"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":"Infancy","Provided_By__c":"ORPHA:370927"},{"Age_At_Onset__c":"Neonatal","Provided_By__c":"ORPHA:370927"}],"Diagnosis__c":[{"Type__c":"GTR","Curie__c":"MEDGEN:C4012395"}],"External_Identifier_Disease__c":[{"URL__c":"https://raresource.nih.gov/diseases/filter/0012405","Source__c":"RareSource"},{"URL__c":"https://www.ncbi.nlm.nih.gov/books/NBK1332","Source__c":"Gene Review","Xref__c":"NBK1332"},{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C4012395","Source__c":"C4012395","Xref__c":"C4012395"},{"URL__c":"https://www.orpha.net/en/disease/detail/370927","Source__c":"C4012395; MONDO:0010490; ORPHA:370927","Xref__c":"ORPHA:370927"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=733115009","Source__c":"C4012395; MONDO:0010490","Xref__c":"733115009"},{"URL__c":"https://www.ebi.ac.uk/ols4/ontologies/doid/classes?obo_id=DOID%3A0080574","Source__c":"MONDO:0010490","Xref__c":"DOID:0080574"},{"URL__c":"https://www.omim.org/entry/300934","Source__c":"C4012395; MONDO:0010490; ORPHA:370927","Xref__c":"OMIM:300934"},{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=860832","Source__c":"C4012395","Xref__c":"MEDGEN:860832"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0010490","Source__c":"GARD:0012405","Xref__c":"MONDO:0010490"}],"GARD_Disease_Gene__c":[{"GeneSymbol__c":"SSR4","Gene_Type__c":"protein-coding gene","Causal_Gene__c":true}],"Inheritance__c":["X-linked recessive"],"GARD_Disease_Feature__c":[{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Uncommon (<1-4%)","Feature__r":{"HPO_Description__c":"An abnormality of the coagulation cascade, which is comprised of the contact activation pathway (also known as the intrinsic pathway) and the tissue factor pathway (also known as the extrinsic pathway) as well as cofactors and regulators.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003256","HPO_Synonym__c":"Coagulopathy","HPO_Name__c":"Abnormality of the coagulation cascade","Feature_System__c":"Blood and Blood-Forming Tissue","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Forceful ejection of the contents of the stomach through the mouth by means of a series of involuntary spasmic contractions.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002013","HPO_Synonym__c":"Emesis; Throwing up; Vomiting","HPO_Name__c":"Vomiting","Feature_System__c":"Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Underdevelopment of the corpus callosum.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002079","HPO_Synonym__c":"Corpus callosum hypoplasia; Hypoplasia of corpus callosum; Hypoplastic corpus callosum; Underdevelopment of part of brain called corpus callosum","HPO_Name__c":"Hypoplasia of the corpus callosum","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Always (100%)","Feature__r":{"HPO_Description__c":"An abnormal morphology (form) of the face or its components.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001999","HPO_Synonym__c":"Abnormal facial shape; Abnormal morphology of the face; Distinctive facies; Dysmorphic facial features; Dysmorphic facies; Facial dysmorphism; Unusual facial appearance; Unusual facies","HPO_Name__c":"Abnormal facial shape","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Distance between the oral commissures more than 2 SD above the mean. Alternatively, an apparently increased width of the oral aperture (subjective).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000154","HPO_Synonym__c":"Broad mouth; Large mouth; Large oral aperture; Macrostomia; Wide mouth","HPO_Name__c":"Wide mouth","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Failure to thrive (FTT) refers to a child whose physical growth is substantially below the norm.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001508","HPO_Synonym__c":"Faltering weight; FTT; Postnatal failure to thrive; Weight faltering","HPO_Name__c":"Failure to thrive","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An abnormality of the process of blood coagulation. That is, altered ability or inability of the blood to clot.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001928","HPO_Synonym__c":"Abnormal blood coagulation studies; Coagulation abnormalities; Coagulation abnormality; Haemorrhagic disorders","HPO_Name__c":"Abnormality of coagulation","Feature_System__c":"Blood and Blood-Forming Tissue","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A connection of the right and left kidney by an isthmus of functioning renal parenchyma or fibrous tissue that crosses the midline.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000085","HPO_Synonym__c":"Horseshoe kidney; Horseshoe kidneys","HPO_Name__c":"Horseshoe kidney","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Always (100%)","Feature__r":{"HPO_Description__c":"Generalized muscular hypotonia (abnormally low muscle tone).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001290","HPO_Synonym__c":"Generalized decreased muscle tone; Generalized muscular hypotonia; Hypotonia, generalized","HPO_Name__c":"Generalized hypotonia","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Increased spaces (diastemata) between most of the teeth in the same dental arch.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000687","HPO_Synonym__c":"Generalized dental spacing; Generalized spacing of teeth; Multiple diastemata; Wide-spaced teeth; Widely spaced teeth; Widely-spaced teeth","HPO_Name__c":"Widely spaced teeth","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"An abnormality of the gastrointestinal tract.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0011024","HPO_Synonym__c":"Abnormality of the gastrointestinal tract; Abnormality of the GI tract","HPO_Name__c":"Abnormality of the gastrointestinal tract","Feature_System__c":"Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Very frequent (80-99%)","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:370927","HPO_Frequency__c":"Always (100%)","Feature__r":{"HPO_Description__c":"The term intellectual disability or intellectual developmental disorder is used to describe significantly sub-average intellectual and adaptive functioning based on clinical assessment and as measured by individually administered, appropriately normed, standardized and validated tests of intellectual functioning and adaptive behavior, with onset during the developmental period from infancy through adolescence.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001249","HPO_Synonym__c":"Intellectual disability; Mental deficiency; Mental retardation; Mental retardation, nonspecific; Mental-retardation; Nonprogressive intellectual disability; Nonprogressive mental retardation","HPO_Name__c":"Intellectual disability","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Occasional (5-29%)","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:370927","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"An abnormality of the vermilion border, the sharp demarcation between the lip (red colored) and the adjacent normal skin.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0011339","HPO_Name__c":"Abnormality of upper lip vermillion","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Displacement or malalignment of joints.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001373","HPO_Synonym__c":"Joint dislocation; Joint dislocations","HPO_Name__c":"Joint dislocation","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Median longitudinal ear length greater than two standard deviations above the mean and median ear width greater than two standard deviations above the mean (objective); or, apparent increase in length and width of the pinna (subjective).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000400","HPO_Synonym__c":"Large ears; Large pinnae","HPO_Name__c":"Macrotia","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"The presence of an abnormal lateral curvature of the spine.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002650","HPO_Name__c":"Scoliosis","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Absence of the septum pellucidum (meaning translucent wall in Latin - SP), also known as the ventricle of Sylvius. The septum pellucidum is a thin, triangular double membrane separating the frontal horns of the right and left lateral ventricles of the brain. It extends between the anterior portion of the corpus callosum, and the body of the fornix and its width varies from 1.5 to 3.0 mm.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001331","HPO_Synonym__c":"Absence of septum pellucidum; Absence of the septum pellucidum; Agenesis of the septum pellucidum; Missing septum pellucidum","HPO_Name__c":"Absent septum pellucidum","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"An eye that is more deeply recessed into the plane of the face than is typical.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000490","HPO_Synonym__c":"Deep set eye; Deep-set eyes; Deeply set eye; Enophthalmos; Ocular depression; Sunken eye; Sunken eyes","HPO_Name__c":"Deeply set eye","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Uncommon (<1-4%)","Feature__r":{"HPO_Description__c":"In utero, the ductus arteriosus (DA) serves to divert ventricular output away from the lungs and toward the placenta by connecting the main pulmonary artery to the descending aorta. A patent ductus arteriosus (PDA) in the first 3 days of life is a physiologic shunt in healthy term and preterm newborn infants, and normally is substantially closed within about 24 hours after bith and completely closed after about three weeks. Failure of physiologcal closure is referred to a persistent or patent ductus arteriosus (PDA). Depending on the degree of left-to-right shunting, PDA can have clinical consequences.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001643","HPO_Synonym__c":"Ductus arteriosus; Patent ductus Botalli; PDA; Persistent arterial duct; Persistent ductus arteriosus","HPO_Name__c":"Patent ductus arteriosus","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A misalignment of the eyes so that the visual axes deviate from bifoveal fixation. The classification of strabismus may be based on a number of features including the relative position of the eyes, whether the deviation is latent or manifest, intermittent or constant, concomitant or otherwise and according to the age of onset and the relevance of any associated refractive error.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000486","HPO_Synonym__c":"Cross-eyed; Squint; Squint eyes","HPO_Name__c":"Strabismus","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Impaired ability to eat related to problems gathering food and getting ready to suck, chew, or swallow it.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0011968","HPO_Synonym__c":"Decreased oral intake; Feeding difficulties; Feeding problems; Poor feeding","HPO_Name__c":"Feeding difficulties","Feature_System__c":"Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Always (100%)","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:370927","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An abnormality of the skeletal system.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000924","HPO_Synonym__c":"Abnormality of the skeletal system; Skeletal abnormalities; Skeletal anomalies","HPO_Name__c":"Abnormality of the skeletal system","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","HPO_Frequency__c":"Always (100%)","Feature__r":{"HPO_Description__c":"Head circumference below 2 standard deviations below the mean for age and sex.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000252","HPO_Synonym__c":"Abnormally small cranium; Abnormally small skull; Decreased circumference of cranium; Decreased size of cranium; Decreased size of skull; Reduced head circumference; small cranium; Small head circumference","HPO_Name__c":"Microcephaly","Feature_System__c":"Nervous System; Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:370927","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:370927","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A structural abnormality of the myelinated axons (white matter) located near the cerebral ventricles.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002518","HPO_Synonym__c":"Abnormality of the periventricular white matter","HPO_Name__c":"Abnormal periventricular white matter morphology","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}}],"tags":{"Cause":["Genetics","Inborn Errors of Metabolism"],"Disease Category":["Genetics","Neurology","Inborn Errors of Metabolism","Congenital Abnormality"],"Specialist":["Genetics","Neurology","Epilepsy","Neurodevelopmental disabilities","Pediatrics"],"Account":["Epilepsy"]},"synonyms":["carbohydrate deficient glycoprotein syndrome type iy"," cdg iy"," cdg syndrome type iy"," cdg-iy"," cdg1y"," congenital disorder of glycosylation type 1y"," congenital disorder of glycosylation type iy"," congenital disorder of glycosylation, type iy, x-linked recessive"," signal sequence receptor subunit 4 congenital disorder of glycosylation"," ssr4-cdg"," ssr4-cdg - signal sequence receptor subunit 4 congenital disorder of glycosylation"]}