Skip to main content

Table 1 Phenotypes of the affected in these families

From: Identification of Houge type of X-linked syndromic mental retardation caused by CNKSR2 truncated variants

Patient

Proband I

Proband II

Proband I Mother

CNKSR2variant

c.1658-3_1676del

c.1102G > T, p.Gly368*

Unknown

Age

9

6

35

EEG

CSWS*

CSWS*

Unknown

MRI

The right fissure was slightly wider than the left and the right temporal lobe was slightly underdeveloped

Normal

Unknown

Epilepsy

Onset at age 3

Onset at age 4

None

Speech delay

No speech

Language expression and comprehension were below average and speech was slurred

None

Cognition and behavior

Motor development delay

Severe delays in adaptive functioning, fine motor skills

Intelligence is lower than normal

  1. *CSWS: continuous spike and slow wave