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Intellectual disability, autosomal recessive 7(MRT7)

MedGen UID:: 370847
•Concept ID:: C1970197
•: Mental or Behavioral Dysfunction

Synonyms:	INTELLECTUAL DEVELOPMENTAL DISORDER, AUTOSOMAL RECESSIVE 7; MENTAL RETARDATION, AUTOSOMAL RECESSIVE 22; MRT7

Gene (location): Gene(s) directly associated with this condition or phenotype.	TUSC3 (8p22)

Monarch Initiative:	MONDO:0012615
OMIM®:	611093

Definition

Any autosomal recessive non-syndromic intellectual disability in which the cause of the disease is a mutation in the TUSC3 gene. [from MONDO]

Clinical features

From HPO

Intellectual disability, severe

MedGen UID:: 48638
•Concept ID:: C0036857
•: Mental or Behavioral Dysfunction

Severe mental retardation is defined as an intelligence quotient (IQ) in the range of 20-34.

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Global developmental delay

MedGen UID:: 107838
•Concept ID:: C0557874
•: Finding

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.

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Intellectual disability

MedGen UID:: 811461
•Concept ID:: C3714756
•: Mental or Behavioral Dysfunction

Intellectual disability, previously referred to as mental retardation, is characterized by subnormal intellectual functioning that occurs during the developmental period. It is defined by an IQ score below 70.

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Microcephaly

MedGen UID:: 1644158
•Concept ID:: C4551563
•: Finding

Head circumference below 2 standard deviations below the mean for age and gender.

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Abnormality of the musculoskeletal system
- Microcephaly
Abnormality of the nervous system

Professional guidelines

PubMed

Genotype-phenotype correlation in contactin-associated protein-like 2 (CNTNAP-2) developmental disorder.

D'Onofrio G, Accogli A, Severino M, Caliskan H, Kokotović T, Blazekovic A, Jercic KG, Markovic S, Zigman T, Goran K, Barišić N, Duranovic V, Ban A, Borovecki F, Ramadža DP, Barić I, Fazeli W, Herkenrath P, Marini C, Vittorini R, Gowda V, Bouman A, Rocca C, Alkhawaja IA, Murtaza BN, Rehman MMU, Al Alam C, Nader G, Mancardi MM, Giacomini T, Srivastava S, Alvi JR, Tomoum H, Matricardi S, Iacomino M, Riva A, Scala M, Madia F, Pistorio A, Salpietro V, Minetti C, Rivière JB, Srour M, Efthymiou S, Maroofian R, Houlden H, Vernes SC, Zara F, Striano P, Nagy V
Hum Genet 2023 Jul;142(7):909-925. Epub 2023 May 14 doi: 10.1007/s00439-023-02552-2. PMID: 37183190 Free PMC Article

Genotype-phenotype correlation in Phelan-McDermid syndrome: A comprehensive review of chromosome 22q13 deleted genes.

Ricciardello A, Tomaiuolo P, Persico AM
Am J Med Genet A 2021 Jul;185(7):2211-2233. Epub 2021 May 5 doi: 10.1002/ajmg.a.62222. PMID: 33949759 Free PMC Article

Clinical and genetic characteristics and prenatal diagnosis of patients presented GDD/ID with rare monogenic causes.

Lin L, Zhang Y, Pan H, Wang J, Qi Y, Ma Y
Orphanet J Rare Dis 2020 Nov 11;15(1):317. doi: 10.1186/s13023-020-01599-y. PMID: 33176815 Free PMC Article

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Recent clinical studies

Etiology

Global developmental delay and intellectual disability in the era of genomics: Diagnosis and challenges in resource limited areas.

Masri AT, Oweis L, Ali M, Hamamy H
Clin Neurol Neurosurg 2023 Jul;230:107799. Epub 2023 May 22 doi: 10.1016/j.clineuro.2023.107799. PMID: 37236004

TMEM63C mutations cause mitochondrial morphology defects and underlie hereditary spastic paraplegia.

Tábara LC, Al-Salmi F, Maroofian R, Al-Futaisi AM, Al-Murshedi F, Kennedy J, Day JO, Courtin T, Al-Khayat A, Galedari H, Mazaheri N, Protasoni M, Johnson M, Leslie JS, Salter CG, Rawlins LE, Fasham J, Al-Maawali A, Voutsina N, Charles P, Harrold L, Keren B, Kunji ERS, Vona B, Jelodar G, Sedaghat A, Shariati G, Houlden H, Crosby AH, Prudent J, Baple EL
Brain 2022 Sep 14;145(9):3095-3107. doi: 10.1093/brain/awac123. PMID: 35718349 Free PMC Article

Auditory phenotype of Smith-Lemli-Opitz syndrome.

Zalewski CK, Sydlowski SA, King KA, Bianconi S, Dang Do A, Porter FD, Brewer CC
Am J Med Genet A 2021 Apr;185(4):1131-1141. Epub 2021 Feb 2 doi: 10.1002/ajmg.a.62087. PMID: 33529473 Free PMC Article

Nijmegen breakage syndrome (NBS).

Chrzanowska KH, Gregorek H, Dembowska-Bagińska B, Kalina MA, Digweed M
Orphanet J Rare Dis 2012 Feb 28;7:13. doi: 10.1186/1750-1172-7-13. PMID: 22373003 Free PMC Article

Smith-Lemli-Opitz syndrome.

DeBarber AE, Eroglu Y, Merkens LS, Pappu AS, Steiner RD
Expert Rev Mol Med 2011 Jul 22;13:e24. doi: 10.1017/S146239941100189X. PMID: 21777499 Free PMC Article

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Diagnosis

Landscape of genetic infantile epileptic spasms syndrome-A multicenter cohort of 124 children from India.

Nagarajan B, Gowda VK, Yoganathan S, Sharawat IK, Srivastava K, Vora N, Badheka R, Danda S, Kalane U, Kaur A, Madaan P, Mehta S, Negi S, Panda PK, Rajadhyaksha S, Saini AG, Saini L, Shah S, Srinivasan VM, Suthar R, Thomas M, Vyas S, Sankhyan N, Sahu JK
Epilepsia Open 2023 Dec;8(4):1383-1404. Epub 2023 Aug 25 doi: 10.1002/epi4.12811. PMID: 37583270 Free PMC Article

Global developmental delay and intellectual disability in the era of genomics: Diagnosis and challenges in resource limited areas.

Masri AT, Oweis L, Ali M, Hamamy H
Clin Neurol Neurosurg 2023 Jul;230:107799. Epub 2023 May 22 doi: 10.1016/j.clineuro.2023.107799. PMID: 37236004

Phenylketonuria.

van Spronsen FJ, Blau N, Harding C, Burlina A, Longo N, Bosch AM
Nat Rev Dis Primers 2021 May 20;7(1):36. doi: 10.1038/s41572-021-00267-0. PMID: 34017006 Free PMC Article

Spastic ataxias.

Bereznyakova O, Dupré N
Handb Clin Neurol 2018;155:191-203. doi: 10.1016/B978-0-444-64189-2.00012-3. PMID: 29891058

Diagnostic Yield and Novel Candidate Genes by Exome Sequencing in 152 Consanguineous Families With Neurodevelopmental Disorders.

Reuter MS, Tawamie H, Buchert R, Hosny Gebril O, Froukh T, Thiel C, Uebe S, Ekici AB, Krumbiegel M, Zweier C, Hoyer J, Eberlein K, Bauer J, Scheller U, Strom TM, Hoffjan S, Abdelraouf ER, Meguid NA, Abboud A, Al Khateeb MA, Fakher M, Hamdan S, Ismael A, Muhammad S, Abdallah E, Sticht H, Wieczorek D, Reis A, Abou Jamra R
JAMA Psychiatry 2017 Mar 1;74(3):293-299. doi: 10.1001/jamapsychiatry.2016.3798. PMID: 28097321

See all (132)

Therapy

CDK5RAP2 primary microcephaly is associated with hypothalamic, retinal and cochlear developmental defects.

Nasser H, Vera L, Elmaleh-Bergès M, Steindl K, Letard P, Teissier N, Ernault A, Guimiot F, Afenjar A, Moutard ML, Héron D, Alembik Y, Momtchilova M, Milani P, Kubis N, Pouvreau N, Zollino M, Guilmin Crepon S, Kaguelidou F, Gressens P, Verloes A, Rauch A, El Ghouzzi V, Drunat S, Passemard S
J Med Genet 2020 Jun;57(6):389-399. Epub 2020 Feb 3 doi: 10.1136/jmedgenet-2019-106474. PMID: 32015000

Patients with Lately Diagnosed Cerebrotendinous Xanthomatosis.

Yunisova G, Tufekcioglu Z, Dogu O, Bilgic B, Kaleagasi H, Akca Kalem S, Lohmann E, Gurvit HI, Emre M, Hanagasi HA
Neurodegener Dis 2019;19(5-6):218-224. Epub 2020 Apr 29 doi: 10.1159/000506770. PMID: 32349000

De novo variants in HK1 associated with neurodevelopmental abnormalities and visual impairment.

Okur V, Cho MT, van Wijk R, van Oirschot B, Picker J, Coury SA, Grange D, Manwaring L, Krantz I, Muraresku CC, Hulick PJ, May H, Pierce E, Place E, Bujakowska K, Telegrafi A, Douglas G, Monaghan KG, Begtrup A, Wilson A, Retterer K, Anyane-Yeboa K, Chung WK
Eur J Hum Genet 2019 Jul;27(7):1081-1089. Epub 2019 Feb 18 doi: 10.1038/s41431-019-0366-9. PMID: 30778173 Free PMC Article

Court orders on procreation.

Matevosyan NR
Arch Gynecol Obstet 2016 Jan;293(1):87-99. Epub 2015 Jun 11 doi: 10.1007/s00404-015-3770-6. PMID: 26063342

The heterogeneity of microphthalmia in the mentally retarded.

Warburg M
Birth Defects Orig Artic Ser 1971 Mar;7(3):136-54. PMID: 4950916

See all (10)

Prognosis

Parkinson's disease - genetic cause.

Cherian A, K P D, Vijayaraghavan A
Curr Opin Neurol 2023 Aug 1;36(4):292-301. Epub 2023 May 24 doi: 10.1097/WCO.0000000000001167. PMID: 37366140

The clinical and genetic spectrum of autosomal-recessive TOR1A-related disorders.

Saffari A, Lau T, Tajsharghi H, Karimiani EG, Kariminejad A, Efthymiou S, Zifarelli G, Sultan T, Toosi MB, Sedighzadeh S, Siu VM, Ortigoza-Escobar JD, AlShamsi AM, Ibrahim S, Al-Sannaa NA, Al-Hertani W, Sandra W, Tarnopolsky M, Alavi S, Li C, Day-Salvatore DL, Martínez-González MJ, Levandoski KM, Bedoukian E, Madan-Khetarpal S, Idleburg MJ, Menezes MJ, Siddharth A, Platzer K, Oppermann H, Smitka M, Collins F, Lek M, Shahrooei M, Ghavideldarestani M, Herman I, Rendu J, Faure J, Baker J, Bhambhani V, Calderwood L, Akhondian J, Imannezhad S, Mirzadeh HS, Hashemi N, Doosti M, Safi M, Ahangari N, Torbati PN, Abedini S, Salpietro V, Gulec EY, Eshaghian S, Ghazavi M, Pascher MT, Vogel M, Abicht A, Moutton S, Bruel AL, Rieubland C, Gallati S, Strom TM, Lochmüller H, Mohammadi MH, Alvi JR, Zackai EH, Keena BA, Skraban CM, Berger SI, Andrew EH, Rahimian E, Morrow MM, Wentzensen IM, Millan F, Henderson LB, Dafsari HS, Jungbluth H, Gomez-Ospina N, McRae A, Peter M, Veltra D, Marinakis NM, Sofocleous C, Ashrafzadeh F, Pehlivan D, Lemke JR, Melki J, Benezit A, Bauer P, Weis D, Lupski JR, Senderek J, Christodoulou J, Chung WK, Goodchild R, Offiah AC, Moreno-De-Luca A, Suri M, Ebrahimi-Fakhari D, Houlden H, Maroofian R
Brain 2023 Aug 1;146(8):3273-3288. doi: 10.1093/brain/awad039. PMID: 36757831 Free PMC Article

A novel homozygous mutation in TRAPPC9 gene causing autosomal recessive non-syndromic intellectual disability.

Amin M, Vignal C, Eltaraifee E, Mohammed IN, Hamed AAA, Elseed MA, Babai A, Elbadi I, Mustafa D, Abubaker R, Mustafa M, Drunat S, Elsayed LEO, Ahmed AE, Boespflug-Tanguy O, Dorboz I
BMC Med Genomics 2022 Nov 8;15(1):236. doi: 10.1186/s12920-022-01354-1. PMID: 36348459 Free PMC Article

PIGN encephalopathy: Characterizing the epileptology.

Bayat A, de Valles-Ibáñez G, Pendziwiat M, Knaus A, Alt K, Biamino E, Bley A, Calvert S, Carney P, Caro-Llopis A, Ceulemans B, Cousin J, Davis S, des Portes V, Edery P, England E, Ferreira C, Freeman J, Gener B, Gorce M, Heron D, Hildebrand MS, Jezela-Stanek A, Jouk PS, Keren B, Kloth K, Kluger G, Kuhn M, Lemke JR, Li H, Martinez F, Maxton C, Mefford HC, Merla G, Mierzewska H, Muir A, Monfort S, Nicolai J, Norman J, O'Grady G, Oleksy B, Orellana C, Orec LE, Peinhardt C, Pronicka E, Rosello M, Santos-Simarro F, Schwaibold EMC, Stegmann APA, Stumpel CT, Szczepanik E, Terczyńska I, Thevenon J, Tzschach A, Van Bogaert P, Vittorini R, Walsh S, Weckhuysen S, Weissman B, Wolfe L, Reymond A, De Nittis P, Poduri A, Olson H, Striano P, Lesca G, Scheffer IE, Møller RS, Sadleir LG
Epilepsia 2022 Apr;63(4):974-991. Epub 2022 Feb 18 doi: 10.1111/epi.17173. PMID: 35179230

Nijmegen breakage syndrome (NBS).

Chrzanowska KH, Gregorek H, Dembowska-Bagińska B, Kalina MA, Digweed M
Orphanet J Rare Dis 2012 Feb 28;7:13. doi: 10.1186/1750-1172-7-13. PMID: 22373003 Free PMC Article

See all (40)