| Phenotype details |
see paper; ..., pregnancy unremarkable, birth-39w, weight 3.5kg (80th); height 182cm (78th), weight 62kg (20th), OFC 55cm (below 3rd); severe global developmental delay, profound intellectual disability (IQ<20); no developmental regression; 2y-walk, self-feeding, can not hold light things; wide base gait; delayed speech, babbling; normal vision, no hearing loss; Marfanoid and elongated face, disordered teeth, low subcutaneous fat, scarring skin; central tone mild hypotonia; peripheral tone no hypotonia; no muscle atrophy; normal deep tendon reflexes; normal plantar response; no seizures; mute |