rs1032793565

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_004387.4(NKX2-5):​c.206T>G​(p.Leu69Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. L69L) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Consequence

NKX2-5
NM_004387.4 missense

Scores

1
7
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.99

Publications

0 publications found
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 Gene-Disease associations (from GenCC):
  • atrial septal defect 7
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine, Orphanet
  • hypothyroidism, congenital, nongoitrous, 5
    Inheritance: AD, Unknown Classification: DEFINITIVE, MODERATE, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • NKX2.5-related congenital, conduction and myopathic heart disease
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • tetralogy of fallot
    Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
  • conotruncal heart malformations
    Inheritance: SD, AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • athyreosis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • familial atrial fibrillation
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • familial bicuspid aortic valve
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • familial isolated congenital asplenia
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • dilated cardiomyopathy
    Inheritance: AD Classification: LIMITED Submitted by: ClinGen

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.3345586).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NKX2-5NM_004387.4 linkc.206T>G p.Leu69Arg missense_variant Exon 1 of 2 ENST00000329198.5 NP_004378.1 P52952-1A0A0S2Z383
NKX2-5NM_001166176.2 linkc.206T>G p.Leu69Arg missense_variant Exon 1 of 2 NP_001159648.1 P52952-2
NKX2-5NM_001166175.2 linkc.206T>G p.Leu69Arg missense_variant Exon 1 of 2 NP_001159647.1 P52952-3A0A0S2Z3K2
NKX2-5XM_017009071.3 linkc.206T>G p.Leu69Arg missense_variant Exon 1 of 2 XP_016864560.1 E5RH49

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NKX2-5ENST00000329198.5 linkc.206T>G p.Leu69Arg missense_variant Exon 1 of 2 1 NM_004387.4 ENSP00000327758.4 P52952-1
NKX2-5ENST00000424406.2 linkc.206T>G p.Leu69Arg missense_variant Exon 1 of 2 1 ENSP00000395378.2 P52952-3
NKX2-5ENST00000521848.1 linkc.206T>G p.Leu69Arg missense_variant Exon 1 of 2 2 ENSP00000427906.1 P52952-2
NKX2-5ENST00000517440.1 linkc.206T>G p.Leu69Arg missense_variant Exon 1 of 2 4 ENSP00000429905.1 E5RH49

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
Cov.:
31
GnomAD4 genome
Cov.:
33
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Atrial septal defect 7 Uncertain:1
Dec 08, 2017
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces leucine with arginine at codon 69 of the NKX2-5 protein (p.Leu69Arg). The leucine residue is highly conserved and there is a moderate physicochemical difference between leucine and arginine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with NKX2-5-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). 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
0.14
BayesDel_addAF
Uncertain
0.073
D
BayesDel_noAF
Benign
-0.13
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.50
T;.;.;T
Eigen
Benign
-0.046
Eigen_PC
Benign
-0.052
FATHMM_MKL
Uncertain
0.85
D
LIST_S2
Benign
0.69
T;T;T;T
M_CAP
Uncertain
0.26
D
MetaRNN
Benign
0.33
T;T;T;T
MetaSVM
Uncertain
0.16
D
MutationAssessor
Benign
1.4
L;L;L;.
PhyloP100
3.0
PrimateAI
Pathogenic
0.79
T
PROVEAN
Benign
-0.010
N;N;N;N
REVEL
Uncertain
0.35
Sift
Benign
0.10
T;D;D;D
Sift4G
Benign
0.64
T;T;T;.
Polyphen
0.88
P;.;.;B
Vest4
0.55
MutPred
0.25
Loss of stability (P = 0.0232);Loss of stability (P = 0.0232);Loss of stability (P = 0.0232);Loss of stability (P = 0.0232);
MVP
0.86
MPC
1.7
ClinPred
0.78
D
GERP RS
3.9
PromoterAI
0.058
Neutral
Varity_R
0.20
gMVP
0.59
Mutation Taster
=78/22
polymorphism

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

Other links and lift over

dbSNP: rs1032793565; hg19: chr5-172661881; API