Skip to main content

Defining the genotypic and phenotypic spectrum of X-linked MSL3-related disorder.

Publication ,  Journal Article
Brunet, T; McWalter, K; Mayerhanser, K; Anbouba, GM; Armstrong-Javors, A; Bader, I; Baugh, E; Begtrup, A; Bupp, CP; Callewaert, BL; Cereda, A ...
Published in: Genet Med
February 2021

PURPOSE: We sought to delineate the genotypic and phenotypic spectrum of female and male individuals with X-linked, MSL3-related disorder (Basilicata-Akhtar syndrome). METHODS: Twenty-five individuals (15 males, 10 females) with causative variants in MSL3 were ascertained through exome or genome sequencing at ten different sequencing centers. RESULTS: We identified multiple variant types in MSL3 (ten nonsense, six frameshift, four splice site, three missense, one in-frame-deletion, one multi-exon deletion), most proven to be de novo, and clustering in the terminal eight exons suggesting that truncating variants in the first five exons might be compensated by an alternative MSL3 transcript. Three-dimensional modeling of missense and splice variants indicated that these have a deleterious effect. The main clinical findings comprised developmental delay and intellectual disability ranging from mild to severe. Autism spectrum disorder, muscle tone abnormalities, and macrocephaly were common as well as hearing impairment and gastrointestinal problems. Hypoplasia of the cerebellar vermis emerged as a consistent magnetic resonance image (MRI) finding. Females and males were equally affected. Using facial analysis technology, a recognizable facial gestalt was determined. CONCLUSION: Our aggregated data illustrate the genotypic and phenotypic spectrum of X-linked, MSL3-related disorder (Basilicata-Akhtar syndrome). Our cohort improves the understanding of disease related morbidity and allows us to propose detailed surveillance guidelines for affected individuals.

Duke Scholars

Altmetric Attention Stats
Dimensions Citation Stats

Published In

Genet Med

DOI

EISSN

1530-0366

Publication Date

February 2021

Volume

23

Issue

2

Start / End Page

384 / 395

Location

United States

Related Subject Headings

  • Phenotype
  • Male
  • Intellectual Disability
  • Humans
  • Genotype
  • Genetics & Heredity
  • Genes, X-Linked
  • Female
  • Exome Sequencing
  • DNA-Binding Proteins
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Brunet, T., McWalter, K., Mayerhanser, K., Anbouba, G. M., Armstrong-Javors, A., Bader, I., … Wagner, M. (2021). Defining the genotypic and phenotypic spectrum of X-linked MSL3-related disorder. Genet Med, 23(2), 384–395. https://doi.org/10.1038/s41436-020-00993-y
Brunet, Theresa, Kirsty McWalter, Katharina Mayerhanser, Grace M. Anbouba, Amy Armstrong-Javors, Ingrid Bader, Evan Baugh, et al. “Defining the genotypic and phenotypic spectrum of X-linked MSL3-related disorder.Genet Med 23, no. 2 (February 2021): 384–95. https://doi.org/10.1038/s41436-020-00993-y.
Brunet T, McWalter K, Mayerhanser K, Anbouba GM, Armstrong-Javors A, Bader I, et al. Defining the genotypic and phenotypic spectrum of X-linked MSL3-related disorder. Genet Med. 2021 Feb;23(2):384–95.
Brunet, Theresa, et al. “Defining the genotypic and phenotypic spectrum of X-linked MSL3-related disorder.Genet Med, vol. 23, no. 2, Feb. 2021, pp. 384–95. Pubmed, doi:10.1038/s41436-020-00993-y.
Brunet T, McWalter K, Mayerhanser K, Anbouba GM, Armstrong-Javors A, Bader I, Baugh E, Begtrup A, Bupp CP, Callewaert BL, Cereda A, Cousin MA, Del Rey Jimenez JC, Demmer L, Dsouza NR, Fleischer N, Gavrilova RH, Ghate S, Graf E, Green A, Green SR, Iascone M, Kdissa A, Klee D, Klee EW, Lancaster E, Lindstrom K, Mayr JA, McEntagart M, Meeks NJL, Mittag D, Moore H, Olsen AK, Ortiz D, Parsons G, Pena LDM, Person RE, Punj S, Ramos-Rivera GA, Sacoto MJG, Bradley Schaefer G, Schnur RE, Scott TM, Scott DA, Serbinski CR, Shashi V, Siu VM, Stadheim BF, Sullivan JA, Švantnerová J, Velsher L, Wargowski DS, Wentzensen IM, Wieczorek D, Winkelmann J, Yap P, Zech M, Zimmermann MT, Meitinger T, Distelmaier F, Wagner M. Defining the genotypic and phenotypic spectrum of X-linked MSL3-related disorder. Genet Med. 2021 Feb;23(2):384–395.

Published In

Genet Med

DOI

EISSN

1530-0366

Publication Date

February 2021

Volume

23

Issue

2

Start / End Page

384 / 395

Location

United States

Related Subject Headings

  • Phenotype
  • Male
  • Intellectual Disability
  • Humans
  • Genotype
  • Genetics & Heredity
  • Genes, X-Linked
  • Female
  • Exome Sequencing
  • DNA-Binding Proteins