rs1060503097

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_004387.4(NKX2-5):​c.824C>T​(p.Pro275Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000549 in 1,456,094 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P275S) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

NKX2-5
NM_004387.4 missense

Scores

1
12
6

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 3.65

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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BS2
High AC in GnomAdExome4 at 8 AD,Unknown,SD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NKX2-5NM_004387.4 linkc.824C>T p.Pro275Leu missense_variant Exon 2 of 2 ENST00000329198.5 NP_004378.1 P52952-1A0A0S2Z383
NKX2-5NM_001166176.2 linkc.*623C>T 3_prime_UTR_variant Exon 2 of 2 NP_001159648.1 P52952-2
NKX2-5NM_001166175.2 linkc.*777C>T 3_prime_UTR_variant Exon 2 of 2 NP_001159647.1 P52952-3A0A0S2Z3K2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NKX2-5ENST00000329198.5 linkc.824C>T p.Pro275Leu missense_variant Exon 2 of 2 1 NM_004387.4 ENSP00000327758.4 P52952-1
NKX2-5ENST00000424406.2 linkc.*777C>T downstream_gene_variant 1 ENSP00000395378.2 P52952-3
NKX2-5ENST00000521848.1 linkc.*623C>T downstream_gene_variant 2 ENSP00000427906.1 P52952-2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.00000420
AC:
1
AN:
237974
AF XY:
0.00000764
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS 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:
0.00000549
AC:
8
AN:
1456094
Hom.:
0
Cov.:
35
AF XY:
0.00000691
AC XY:
5
AN XY:
723644
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33388
American (AMR)
AF:
0.00
AC:
0
AN:
44304
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26044
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39564
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86048
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51804
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5752
European-Non Finnish (NFE)
AF:
0.00000541
AC:
6
AN:
1109132
Other (OTH)
AF:
0.0000167
AC:
1
AN:
60058
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.512
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Atrial septal defect 7;C3280785:Ventricular septal defect 3 Uncertain:1
Jun 01, 2017
Mayo Clinic Laboratories, Mayo Clinic
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Atrial septal defect 7 Uncertain:1
May 15, 2018
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces proline with leucine at codon 275 of the NKX2-5 protein (p.Pro275Leu). The proline residue is moderately conserved and there is a moderate physicochemical difference between proline and leucine. While this variant is not present in population databases (ExAC no frequency), the frequency information is unreliable, as metrics indicate poor data quality at this position in the ExAC database. This variant has not been reported in the literature in an individual with a NKX2-5-related disease. ClinVar contains an entry for this variant (Variation ID: 410967). 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: "Possibly Damaging"; Align-GVGD: "Class C0"). In summary, this variant is a rare missense change with uncertain impact on protein function. It has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.26
BayesDel_addAF
Uncertain
0.043
T
BayesDel_noAF
Uncertain
-0.080
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.74
D
Eigen
Benign
0.12
Eigen_PC
Benign
0.024
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Benign
0.51
T
M_CAP
Pathogenic
0.58
D
MetaRNN
Uncertain
0.71
D
MetaSVM
Uncertain
0.45
D
MutationAssessor
Uncertain
2.3
M
PhyloP100
3.6
PrimateAI
Uncertain
0.74
T
PROVEAN
Uncertain
-3.1
D
REVEL
Uncertain
0.52
Sift
Benign
0.041
D
Sift4G
Uncertain
0.0050
D
Polyphen
0.99
D
Vest4
0.40
MutPred
0.31
Loss of disorder (P = 0.0053);
MVP
0.90
MPC
1.3
ClinPred
0.97
D
GERP RS
3.3
Varity_R
0.097
gMVP
0.58
Mutation Taster
=84/16
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: rs1060503097; hg19: chr5-172659723; API