chr18-22181525-G-A

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM1BP4_ModerateBS1_Supporting

The NM_005257.6(GATA6):c.1375G>A(p.Ala459Thr) variant causes a missense change. The variant allele was found at a frequency of 0.000151 in 1,614,158 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 Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. A459A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00081 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000082 ( 0 hom. )

Consequence

GATA6
NM_005257.6 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:2O:1

Conservation

PhyloP100: 6.88

Publications

3 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.

PM1

In a hotspot region, there are 7 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 6 uncertain in NM_005257.6

BP4

Computational evidence support a benign effect (MetaRNN=0.15460134).

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000814 (124/152286) while in subpopulation AFR AF = 0.00294 (122/41554). AF 95% confidence interval is 0.00251. There are 0 homozygotes in GnomAd4. There are 70 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GATA6	NM_005257.6 link	c.1375G>A	p.Ala459Thr	missense_variant	Exon 4 of 7	ENST00000269216.10	NP_005248.2	Q92908-1
GATA6	XM_047437483.1 link	c.1375G>A	p.Ala459Thr	missense_variant	Exon 4 of 7		XP_047293439.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GATA6	ENST00000269216.10 link	c.1375G>A	p.Ala459Thr	missense_variant	Exon 4 of 7	1	NM_005257.6	ENSP00000269216.3		Q92908-1
GATA6	ENST00000581694.1 link	c.1375G>A	p.Ala459Thr	missense_variant	Exon 3 of 6	1		ENSP00000462313.1		Q92908-1

Frequencies

GnomAD3 genomes

AF:

0.000815

AC:

124

AN:

152170

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00294

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000183

AC:

AN:

251490

AF XY:

0.000162

show subpopulations

Gnomad AFR exome

AF:

0.00240

Gnomad AMR exome

AF:

0.0000867

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000821

AC:

120

AN:

1461872

Hom.:

Cov.:

AF XY:

0.0000715

AC XY:

AN XY:

727236

show subpopulations

African (AFR)

AF:

0.00269

AC:

AN:

33480

American (AMR)

AF:

0.000134

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39690

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000126

AC:

AN:

1112002

Other (OTH)

AF:

0.000166

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.474

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

AF:

0.000814

AC:

124

AN:

152286

Hom.:

Cov.:

AF XY:

0.000940

AC XY:

AN XY:

74482

show subpopulations

African (AFR)

AF:

0.00294

AC:

122

AN:

41554

American (AMR)

AF:

0.000131

AC:

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10602

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68022

Other (OTH)

AF:

0.00

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.000350

Hom.:

Bravo

AF:

0.000763

ESP6500AA

AF:

0.00204

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000222

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:4Benign:2Other:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Feb 04, 2021

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Has not been reported as pathogenic or benign in association with arrhythmia to our knowledge; Reported in ClinVar (ClinVar Variant ID# 211064; Landrum et al., 2016); In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; This variant is associated with the following publications: (PMID: 25107291) -

Feb 08, 2022

Revvity Omics, Revvity

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not specified

Uncertain:1

Jun 27, 2014

Genetic Services Laboratory, University of Chicago

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Monogenic diabetes

Uncertain:1

Jun 29, 2018

Personalized Diabetes Medicine Program, University of Maryland School of Medicine

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:research

ACMG criteria: PP3 (8 predictors, REVEL = 0.687; not using BP4 (3 predictors)), PM1 (located in second zinc finger domain, lots of other mutations present (PMID: 22158542)), BS2 (77 individuals in gnomAD (69 (0.28%) African) = VUS. Variant in paper showing family members of probands with mutations/early onset severe phenotype and variable expressivity (some with just diabetes, PMID: 23223019, 24310933) -

GATA6-related disorder

Benign:1

Feb 18, 2022

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Atrioventricular septal defect 5

Benign:1

Dec 15, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Pancreatic hypoplasia-diabetes-congenital heart disease syndrome

Other:1

Clinical Genomics, Uppaluri K&H Personalized Medicine Clinic

Significance:Uncertain risk allele

Review Status:criteria provided, single submitter

Collection Method:research

Potent mutations in GATA6 gene are associated with neonatal diabetes, decreased insulin production due to pancreatic aplasia or hypoplasia. Also associated with isolated cardiac abnormalities in children, like atrial septal defects.However no sufficient evidence is found to ascertain the role of this particular variant rs151176879 yet. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Uncertain

0.013

BayesDel_noAF

Pathogenic

0.24

CADD

Uncertain

(source)

DANN

Pathogenic

1.0

DEOGEN2

Pathogenic

0.97

D;D

Eigen

Benign

0.16

Eigen_PC

Uncertain

0.23

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.85

.;D

M_CAP

Uncertain

0.20

MetaRNN

Benign

0.15

T;T

MetaSVM

Pathogenic

0.93

MutationAssessor

Benign

1.0

L;L

PhyloP100

6.9

PrimateAI

Pathogenic

0.82

PROVEAN

Uncertain

-3.2

D;.

REVEL

Pathogenic

0.69

Sift

Benign

0.10

T;.

Sift4G

Benign

0.18

T;T

Polyphen

0.85

P;P

Vest4

0.81

MVP

0.95

ClinPred

0.079

GERP RS

5.0

Varity_R

0.27

gMVP

0.80

Mutation Taster

=67/33

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

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over