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Table 2 Overview of clinical features of previously published patients with GRIA3 deletion/duplication and present patients with GRIA3 mutation

From: X-exome sequencing in Finnish families with Intellectual Disability - four novel mutations and two novel syndromic phenotypes

 

Gecz et al. [1999] [31] Female patient

Wu et al. [2007] [34] Male patients

    

Bonnet et al. [2009] [36] Male/male patient

Chiyonobu et al. [2007] [35] Male patient

D174 Male patient (III-7)

D174 Male patient (III-8)

D174 Male patient (II-5)

n = 1

n = 3

n = 2

n = 4

n = 2

n = 2

n = 2

n = 1

   

Type of change

Translocation t(X;12) (q24;q15)

Deletion

Missense variant p.G833R

Missense variant p.R631S

Missense variant p.M706T

Missense variant p.R450Q

Partial duplication of GRIA3

Partial duplication of GRIA3

Missense variant p.G630R

Missense variant p.G630R

Missense variant p.G630R

Feature

           

Intellectual disability

+

+

+

+

+

-

+/+

+

+

+

+

Mild

-

-

-

-

+

-

-

-

-

-

-

Moderate

+

+

+

+

+

-

-

-

-

-

-

Severe

-

-

-

-

-

-

+/+

+

+

+

+

Autistic features

ND

ND

+

ND

ND

ND

+/ND

+

+

-

+

Behaviour troubles

+

ND

+

ND

ND

ND

+/+

+

+

+

+

Self injury

ND

ND

ND

ND

ND

ND

ND

ND

+

+

+

Aggressive outbursts

ND

ND

ND

ND

ND

ND

ND

ND

+

+

-

Dysmorphic features

ND

ND

ND

ND

ND

ND

+/+

+

+

+

+

Brachycephaly

ND

ND

ND

ND

ND

ND

ND

ND

+

+

+

Macrocephaly

ND

ND

+

ND

ND

ND

ND

ND

-

-

-

Deep set eyes

ND

ND

ND

ND

ND

ND

ND

ND

+

+

+

Aesthenic habitus

ND

ND

ND

+

+

ND

ND

ND

-

-

-

Myclonic jerks

ND

ND

+

ND

ND

ND

ND

ND

ND

ND

ND

Hyporeflexia

ND

+

ND

ND

+

ND

ND

ND

ND

ND

ND

Prominent supraorbital ridges

ND

ND

ND

ND

ND

ND

ND

ND

+

+

+

Short stature

ND

ND

ND

ND

ND

ND

-/-

+

+

+

+

Epilepsy

+

ND

ND

ND

ND

ND

-/-

-

+

+

+

Inguinal hernia

-

ND

ND

ND

ND

ND

+/-

+

-

-

-

Brain MRI abnormalities

ND

ND

ND

ND

ND

ND

-/+

-

ND

ND

ND

Bowel occlusions

ND

ND

ND

ND

ND

ND

ND

ND

-

-

+

Malposition of feet

ND

ND

ND

ND

ND

ND

ND

ND

+

+

-

Hydronephrosis

ND

ND

ND

ND

ND

ND

ND

ND

+

ND

ND

Ren arcuatus

ND

ND

ND

ND

ND

ND

ND

ND

+

ND

ND

  1. ND→No data, +→clinical trait present, -→clinical trait absent.