Differences of Sex Development
Gene: SEMA3A
Heterozygous variants associated with isolated GnRH deficiency with or without anosmia (Kallman syndrome like). More severe phenotype with biallelic SEMA3A variants including postnatal short stature and congenital heart defects in 3/3 published, unrelated individuals.
PMID 33369061 Gileta et al 2021 - report x1 patient. Female proband was compound heterozygote for a nonsense variant and a multiexonic deletion of SEMA3A. Presents with postnatal short stature, congenital cardiac anomalies, dysmorphic features, hypogonadotrophic hypogonadism and anosmia.
PMID 28075028 Baumann et al 2017 - report x1 patient. Homozygous LoF variants identified in a proband from a consanguineous Turkish family. Noted at birth to have a high-positioned scapulae, deformed ribs and a lateral clavicular hook. The patient also had upper/lower limb contractures and aberrant right subclavian artery. Mild facial dysmorphism, micropenis and hypogonadotrophic hypogonadism also noted in the first week of life. Postnatal short stature (length 50cm at term birth)
PMID 24124006 Hofmann et al 2013 - first reported biallelic variants in a proband with postnatal short stature, skeletal anomalies of the thorax, congenital heart
defect and camptodactyly
Sources: Expert ReviewCreated: 1 Nov 2023, 3:28 a.m.
Mode of inheritance
BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
Phenotypes
Hypogonadotropic hypogonadism 16 with or without anosmia - MIM#614897
Publications
Gene: sema3a has been classified as Green List (High Evidence).
Gene: sema3a has been classified as Green List (High Evidence).
gene: SEMA3A was added gene: SEMA3A was added to Differences of Sex Development. Sources: Expert Review Mode of inheritance for gene: SEMA3A was set to BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal Publications for gene: SEMA3A were set to 28075028; 33369061; 20301509; 21059704; 24124006; 22927827 Phenotypes for gene: SEMA3A were set to Hypogonadotropic hypogonadism 16 with or without anosmia - MIM#614897 Review for gene: SEMA3A was set to GREEN