| Phenotype details |
severe ID; no normal speech, stereotypic laughter, shy character, neonatal hypotonia, progressing to hypertonia, hyperreflexia, no Babinski sign, spasticity, no drooling, ambulant, no foot deformity, head circumference -2.5SD, reduced height, no epilipsy, no sphincter control, normal eye, normal hearing, overweight; 2.5y walk independently |