8-23702571-G-C

Variant names:

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_001136271.3(NKX2-6):c.786C>G(p.Gly262Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00329 in 1,543,934 control chromosomes in the GnomAD database, including 156 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.017 ( 82 hom., cov: 33)

Exomes 𝑓: 0.0018 ( 74 hom. )

Consequence

NKX2-6
NM_001136271.3 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -1.01

Publications

0 publications found

Variant links:

Genes affected

NKX2-6 (HGNC:32940): (NK2 homeobox 6) This gene encodes a homeobox-containing protein that belongs to the NK-2 homeobox family. This protein is a vertebrate homolog of Drosophila homeobox-containing protein called 'tinman', which has been shown to be essential for development of the heart-like dorsal vessel. In conjunction with related gene, NKX2-5, this gene may play a role in both pharyngeal and cardiac embryonic development. Mutations in this gene are associated with persistent truncus arteriosus.[provided by RefSeq, Aug 2011]

NKX2-6 Gene-Disease associations (from GenCC):

conotruncal heart malformations
Inheritance: AR Classification: MODERATE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
congenital heart disease
Inheritance: AR Classification: LIMITED Submitted by: ClinGen

NKX2-6 links:

LOC107986930 (HGNC:):

LOC107986930 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.76).

BP6

Variant 8-23702571-G-C is Benign according to our data. Variant chr8-23702571-G-C is described in ClinVar as Benign. ClinVar VariationId is 466319.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-1.01 with no splicing effect.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0593 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NKX2-6	NM_001136271.3 link	c.786C>G	p.Gly262Gly	synonymous_variant	Exon 2 of 2	ENST00000325017.4	NP_001129743.2	A6NCS4
LOC107986930	XR_001745842.2 link	n.1312+33821G>C		intron_variant	Intron 3 of 4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NKX2-6	ENST00000325017.4 link	c.786C>G	p.Gly262Gly	synonymous_variant	Exon 2 of 2	2	NM_001136271.3	ENSP00000320089.3		A6NCS4

Frequencies

GnomAD3 genomes

AF:

0.0173

AC:

2631

AN:

152034

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0612

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00477

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000208

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00861

GnomAD2 exomes

AF:

0.00374

AC:

539

AN:

144304

AF XY:

0.00283

show subpopulations

Gnomad AFR exome

AF:

0.0654

Gnomad AMR exome

AF:

0.00207

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000710

Gnomad OTH exome

AF:

0.00119

GnomAD4 exome

AF:

0.00175

AC:

2441

AN:

1391782

Hom.:

Cov.:

AF XY:

0.00145

AC XY:

998

AN XY:

686658

show subpopulations

African (AFR)

AF:

0.0657

AC:

2073

AN:

31570

American (AMR)

AF:

0.00233

AC:

AN:

35658

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25140

East Asian (EAS)

AF:

0.00

AC:

AN:

35690

South Asian (SAS)

AF:

0.000126

AC:

AN:

79156

European-Finnish (FIN)

AF:

0.00

AC:

AN:

42754

Middle Eastern (MID)

AF:

0.00141

AC:

AN:

5692

European-Non Finnish (NFE)

AF:

0.0000482

AC:

AN:

1078216

Other (OTH)

AF:

0.00371

AC:

215

AN:

57906

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.490

Heterozygous variant carriers

145

289

434

578

723

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

140

210

280

350

<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:

0.0174

AC:

2641

AN:

152152

Hom.:

Cov.:

AF XY:

0.0168

AC XY:

1247

AN XY:

74376

show subpopulations

African (AFR)

AF:

0.0613

AC:

2545

AN:

41532

American (AMR)

AF:

0.00477

AC:

AN:

15310

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5126

South Asian (SAS)

AF:

0.000208

AC:

AN:

4812

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10612

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

67974

Other (OTH)

AF:

0.00852

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.508

Heterozygous variant carriers

130

259

389

518

648

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

104

130

<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:

0.00120

Hom.:

Bravo

AF:

0.0195

Asia WGS

AF:

0.00260

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Sep 15, 2020

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

not specified

Benign:1

Dec 26, 2023

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Conotruncal heart malformations

Benign:1

Jan 22, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

NKX2-6-related disorder

Benign:1

Sep 10, 2019

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

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

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.76

CADD

Benign

1.2

(source)

DANN

Benign

0.78

PhyloP100

-1.0

Mutation Taster

=100/0

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