rs769233111

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BS1_Supporting

The NM_004387.4(NKX2-5):c.13C>T(p.Pro5Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000137 in 1,606,956 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 30)

Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

NKX2-5
NM_004387.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 6.08

Variant links:

Genes affected

NKX2-5 (HGNC:2488): (NK2 homeobox 5) This gene encodes a homeobox-containing transcription factor. This transcription factor functions in heart formation and development. Mutations in this gene cause atrial septal defect with atrioventricular conduction defect, and also tetralogy of Fallot, which are both heart malformation diseases. Mutations in this gene can also cause congenital hypothyroidism non-goitrous type 5, a non-autoimmune condition. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2009]

NKX2-5 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BS1

Variant frequency is greater than expected in population amr. gnomad4_exome allele frequency = 0.0000131 (19/1454786) while in subpopulation AMR AF= 0.000408 (18/44088). AF 95% confidence interval is 0.000263. There are 0 homozygotes in gnomad4_exome. There are 5 alleles in male gnomad4_exome subpopulation. Median coverage is 33. This position pass quality control queck. 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
NKX2-5	NM_004387.4 link	c.13C>T	p.Pro5Ser	missense_variant	Exon 1 of 2	ENST00000329198.5	NP_004378.1	P52952-1A0A0S2Z383
NKX2-5	NM_001166176.2 link	c.13C>T	p.Pro5Ser	missense_variant	Exon 1 of 2		NP_001159648.1	P52952-2
NKX2-5	NM_001166175.2 link	c.13C>T	p.Pro5Ser	missense_variant	Exon 1 of 2		NP_001159647.1	P52952-3A0A0S2Z3K2
NKX2-5	XM_017009071.3 link	c.13C>T	p.Pro5Ser	missense_variant	Exon 1 of 2		XP_016864560.1	E5RH49

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
NKX2-5	ENST00000329198.5 link	c.13C>T	p.Pro5Ser	missense_variant	Exon 1 of 2	1	NM_004387.4	ENSP00000327758.4	P52952-1
NKX2-5	ENST00000424406.2 link	c.13C>T	p.Pro5Ser	missense_variant	Exon 1 of 2	1		ENSP00000395378.2	P52952-3
NKX2-5	ENST00000521848.1 link	c.13C>T	p.Pro5Ser	missense_variant	Exon 1 of 2	2		ENSP00000427906.1	P52952-2
NKX2-5	ENST00000517440.1 link	c.13C>T	p.Pro5Ser	missense_variant	Exon 1 of 2	4		ENSP00000429905.1	E5RH49

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152170

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

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

GnomAD3 exomes

AF:

0.0000674

AC:

AN:

237222

Hom.:

AF XY:

0.0000230

AC XY:

AN XY:

130392

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000473

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000131

AC:

AN:

1454786

Hom.:

Cov.:

AF XY:

0.00000691

AC XY:

AN XY:

723696

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000408

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.01e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152170

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74334

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000378

ExAC

AF:

0.0000664

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 20, 2025

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

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Variant summary: NKX2-5 c.13C>T (p.Pro5Ser) results in a non-conservative amino acid change in the encoded protein sequence. Five of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 6.7e-05 in 237222 control chromosomes, predominantly at a frequency of 0.00047 within the Latino subpopulation in the gnomAD database. c.13C>T has been reported in the literature in at least an individual affected with down syndrome with normal heart and no family history of congenital heart defect (example: Alcntara-Ortigoza_2015). This report however, does not provide unequivocal conclusions about association of the variant with congenital heart disease. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publication has been ascertained in the context of this evaluation (PMID: 25524324). ClinVar contains an entry for this variant (Variation ID: 578898). Based on the evidence outlined above, the variant was classified as VUS-possibly benign. -

Atrial septal defect 7

Uncertain:1

Dec 25, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 5 of the NKX2-5 protein (p.Pro5Ser). This variant is present in population databases (rs769233111, gnomAD 0.05%), and has an allele count higher than expected for a pathogenic variant. This variant has not been reported in the literature in individuals affected with NKX2-5-related conditions. ClinVar contains an entry for this variant (Variation ID: 578898). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) has been performed for this missense variant. However, the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on NKX2-5 protein function. 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. -

Tetralogy of Fallot;C1857586:Conotruncal heart malformations;C2673630:Hypothyroidism, congenital, nongoitrous, 5;C3276096:Atrial septal defect 7;C3280785:Ventricular septal defect 3;C3280795:Hypoplastic left heart syndrome 2

Uncertain:1

Jan 17, 2024

Fulgent Genetics, Fulgent Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Cardiovascular phenotype

Uncertain:1

Feb 04, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.P5S variant (also known as c.13C>T), located in coding exon 1 of the NKX2-5 gene, results from a C to T substitution at nucleotide position 13. The proline at codon 5 is replaced by serine, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.088

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Benign

-0.090

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.81

D;.;.;T

Eigen

Uncertain

0.41

Eigen_PC

Uncertain

0.39

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.83

T;T;T;T

M_CAP

Pathogenic

0.51

MetaRNN

Uncertain

0.46

T;T;T;T

MetaSVM

Uncertain

0.62

MutationAssessor

Uncertain

2.1

M;M;M;.

PrimateAI

Uncertain

0.74

PROVEAN

Uncertain

-4.3

D;D;D;D

REVEL

Uncertain

0.54

Sift

Uncertain

0.0060

D;D;D;D

Sift4G

Uncertain

0.015

D;D;D;.

Polyphen

0.58

P;.;.;P

Vest4

0.32

MutPred

0.33

Loss of glycosylation at T8 (P = 0.0725);Loss of glycosylation at T8 (P = 0.0725);Loss of glycosylation at T8 (P = 0.0725);Loss of glycosylation at T8 (P = 0.0725);

MVP

0.85

MPC

1.4

ClinPred

0.45

GERP RS

3.9

Varity_R

0.27

gMVP

0.64

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