NM_001136271.3:c.183C>T

Variant names:

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001136271.3(NKX2-6):c.183C>T(p.Gly61Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00137 in 1,550,456 control chromosomes in the GnomAD database, including 26 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0072 ( 16 hom., cov: 32)

Exomes 𝑓: 0.00074 ( 10 hom. )

Consequence

NKX2-6
NM_001136271.3 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.124

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 links:

LOC107986930 (HGNC:):

LOC107986930 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.63).

BP6

Variant 8-23706416-G-A is Benign according to our data. Variant chr8-23706416-G-A is described in ClinVar as [Benign]. Clinvar id is 466314.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-0.124 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00717 (1092/152274) while in subpopulation AFR AF= 0.0245 (1017/41554). AF 95% confidence interval is 0.0232. There are 16 homozygotes in gnomad4. There are 529 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 16 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NKX2-6	NM_001136271.3 link	c.183C>T	p.Gly61Gly	synonymous_variant	Exon 1 of 2	ENST00000325017.4	NP_001129743.2	A6NCS4
LOC107986930	XR_001745842.2 link	n.1312+37666G>A		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.183C>T	p.Gly61Gly	synonymous_variant	Exon 1 of 2	2	NM_001136271.3	ENSP00000320089.3		A6NCS4

Frequencies

GnomAD3 genomes

AF:

0.00710

AC:

1081

AN:

152156

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0243

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00327

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00633

Gnomad NFE

AF:

0.000132

Gnomad OTH

AF:

0.00671

GnomAD3 exomes

AF:

0.00164

AC:

254

AN:

155046

Hom.:

AF XY:

0.00137

AC XY:

113

AN XY:

82410

show subpopulations

Gnomad AFR exome

AF:

0.0275

Gnomad AMR exome

AF:

0.00117

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000878

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000996

Gnomad OTH exome

AF:

0.000685

GnomAD4 exome

AF:

0.000735

AC:

1028

AN:

1398182

Hom.:

Cov.:

AF XY:

0.000674

AC XY:

465

AN XY:

689704

show subpopulations

Gnomad4 AFR exome

AF:

0.0266

Gnomad4 AMR exome

AF:

0.00129

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000505

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000575

Gnomad4 OTH exome

AF:

0.00122

GnomAD4 genome

AF:

0.00717

AC:

1092

AN:

152274

Hom.:

Cov.:

AF XY:

0.00711

AC XY:

529

AN XY:

74452

show subpopulations

Gnomad4 AFR

AF:

0.0245

Gnomad4 AMR

AF:

0.00327

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000132

Gnomad4 OTH

AF:

0.00664

Alfa

AF:

0.000945

Hom.:

Bravo

AF:

0.00798

Asia WGS

AF:

0.00231

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Conotruncal heart malformations

Benign:1

Nov 11, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

NKX2-6-related disorder

Benign:1

Dec 27, 2023

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). -

not provided

Benign:1

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.63

CADD

Benign

4.5

DANN

Benign

0.94

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over