chr18-22171377-T-C

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4

The NM_005257.6(GATA6):c.233T>C(p.Leu78Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000286 in 1,434,942 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L78R) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

GATA6
NM_005257.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.916

Publications

0 publications found

Variant links:

Genes affected

GATA6 (HGNC:4174): (GATA binding protein 6) This gene is a member of a small family of zinc finger transcription factors that play an important role in the regulation of cellular differentiation and organogenesis during vertebrate development. This gene is expressed during early embryogenesis and localizes to endo- and mesodermally derived cells during later embryogenesis and thereby plays an important role in gut, lung, and heart development. Mutations in this gene are associated with several congenital defects. [provided by RefSeq, Mar 2012]

GATA6 Gene-Disease associations (from GenCC):

atrial septal defect 9
Inheritance: AD Classification: DEFINITIVE, LIMITED Submitted by: G2P, Ambry Genetics
atrioventricular septal defect 5
Inheritance: AD Classification: DEFINITIVE, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae)
GATA6-related congenital heart disease with or without pancreatic agenesis or neonatal diabetes
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
pancreatic hypoplasia-diabetes-congenital heart disease syndrome
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp, Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
metabolic syndrome
Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
neonatal diabetes mellitus
Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
tetralogy of fallot
Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
familial atrial fibrillation
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
conotruncal heart malformations
Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

GATA6 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.31893164).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GATA6	NM_005257.6 link	c.233T>C	p.Leu78Pro	missense_variant	Exon 2 of 7	ENST00000269216.10	NP_005248.2	Q92908-1
GATA6	XM_047437483.1 link	c.233T>C	p.Leu78Pro	missense_variant	Exon 2 of 7		XP_047293439.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GATA6	ENST00000269216.10 link	c.233T>C	p.Leu78Pro	missense_variant	Exon 2 of 7	1	NM_005257.6	ENSP00000269216.3		Q92908-1
GATA6	ENST00000581694.1 link	c.233T>C	p.Leu78Pro	missense_variant	Exon 1 of 6	1		ENSP00000462313.1		Q92908-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.0000286

AC:

AN:

1434942

Hom.:

Cov.:

AF XY:

0.0000266

AC XY:

AN XY:

713200

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33212

American (AMR)

AF:

0.0000230

AC:

AN:

43410

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25826

East Asian (EAS)

AF:

0.00

AC:

AN:

39134

South Asian (SAS)

AF:

0.00

AC:

AN:

84760

European-Finnish (FIN)

AF:

0.00

AC:

AN:

36878

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5596

European-Non Finnish (NFE)

AF:

0.0000362

AC:

AN:

1106436

Other (OTH)

AF:

0.00

AC:

AN:

59690

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.460

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000756

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Tetralogy of Fallot;C1857586:Conotruncal heart malformations;C2931296:Pancreatic hypoplasia-diabetes-congenital heart disease syndrome;C3280939:Atrioventricular septal defect 5;C3280943:Atrial septal defect 9

Uncertain:1

Oct 31, 2018

Fulgent Genetics, Fulgent Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Atrioventricular septal defect 5

Uncertain:1

Apr 18, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces leucine, which is neutral and non-polar, with proline, which is neutral and non-polar, at codon 78 of the GATA6 protein (p.Leu78Pro). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with GATA6-related conditions. ClinVar contains an entry for this variant (Variation ID: 540134). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.093

BayesDel_addAF

Pathogenic

0.18

BayesDel_noAF

Uncertain

0.020

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.45

T;T

Eigen

Benign

-0.31

Eigen_PC

Benign

-0.18

FATHMM_MKL

Benign

0.70

LIST_S2

Benign

0.60

.;T

M_CAP

Pathogenic

0.90

MetaRNN

Benign

0.32

T;T

MetaSVM

Uncertain

0.56

MutationAssessor

Benign

0.81

L;L

PhyloP100

0.92

PrimateAI

Pathogenic

0.87

PROVEAN

Benign

-2.3

N;.

REVEL

Uncertain

0.41

Sift

Pathogenic

0.0

D;.

Sift4G

Benign

0.088

T;T

Polyphen

0.013

B;B

Vest4

0.19

MutPred

0.22

Loss of stability (P = 0.0123);Loss of stability (P = 0.0123);

MVP

0.96

ClinPred

0.63

GERP RS

2.7

PromoterAI

-0.013

Neutral

(source)

Varity_R

0.59

gMVP

0.51

Mutation Taster

=79/21

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over