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Table 2 Molecular profiles of nine neonates with RASopathies

From: RASopathies due to de novo pathogenic variants: clinical features, genetic findings and outcomes in nine neonates born with congenital heart defects

Patient

number

LOVD

Individual ID

Gene

Nucleotide change

Amino acid change

Molecular diagnosis

Inheritance pattern

Zygosity

Variant type

In silico prediction

(SIFT/PolyPhen)

ACMG classification

Novel/

published

(PMID)

De novo/

inherited

Age of confirmed diagnosis (d)

Patient 1

00410414

PTPN11

(NM_002834.3)

c.1517A > C

p.Gln506Pro

Noonan syndrome 1

(MIM:163,950)

AD

Het

missense

Pathogenic

(PS2, PM2, PP3, PP4)

Published

(14961557)

De novo

61

Patient 2

00410466

PTPN11

(NM_002834.3)

c.182A > G

p.Asp61Gly

Noonan syndrome 1

(MIM:163,950)

AD

Het

missense

Pathogenic

(PS2, PM2, PP3, PP4)

Published

(11704759)

De novo

49

Patient 3

00410416

RAF1 (NM_002880.3)

c.770C > T

p.Ser257Leu

Noonan syndrome 5

(MIM:611,553)

AD

Het

missense

Pathogenic

(PS2, PM2, PP3, PP4)

Published

(17603482)

De novo

84

Patient 4

00410417

RAF1 (NM_002880.3)

c.770C > T

p.Ser257Leu

Noonan syndrome 5

(MIM:611,553)

AD

Het

missense

Pathogenic

(PS2, PM2, PP3, PP4)

Published

(17603482)

De novo

78

Patient 5

00410430

BRAF

(NM_004333.5)

c.1405G > A

p.Gly469Arg

Noonan syndrome 7

(MIM:613,706)

AD

Het

missense

Likely pathogenic

(PS2, PM2, PP1,PP3, PP4)

Published

(25157968)

De novo

58

Patient 6

00410431

SHOC2

(NM_007373)

c.4A > G

p.Ser2Gly

Noonan syndrome -like with loose anagen hair 1

(MIM:607,721)

AD

Het

missense

Pathogenic

(PS2, PM2, PP3, PP4)

Published

(19684605)

De novo

50

Patient 7

00410432

RASA1 (NM_002890.2)

c.2828 T > C

p.Leu943Pro

Capillary malformation-

arteriovenous malformation 1

(MIM:608,354)

AD

Het

missense

Deleterious/

Probably damaging

Likely pathogenic

(PS2, PM2, PM5, PP1, PP3, PP4)

Novel

De novo

64

Patient 8

00410433

RASA1

(NM_002890.2)

c.2001del

p.Pro668Leufs*10

Capillary malformation-

arteriovenous malformation 1

(MIM:608,354)

AD

Het

frameshift

Pathogenic

(PVS1, PS2, PM2, PP3, PP4)

Novel

De novo

79

Patient 9

00410435

HRAS

(NM_005343)

c.37G > T

p.Gly13Cys

Costello syndome

(MIM:218,040)

AD

Het

missense

Pathogenic

(PS2, PM2, PP3, PP4)

Published

(16835863)

De novo

55

  1. Abbreviations AD Autosomal recessive inheritance disease, Het Heterozygous, WES Whole-exome sequencing, LOVD Leiden open variation database, ACMG American college of medical genetics
  2. *Variants were classified according to the 2015 ACMG/AMP standards