NM_004387.4:c.827C>G

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_004387.4(NKX2-5):c.827C>G(p.Ala276Gly) variant causes a missense change. The variant allele was found at a frequency of 0.0000634 in 1,608,152 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A276T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000068 ( 0 hom. )

Consequence

NKX2-5
NM_004387.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:1

Conservation

PhyloP100: 4.83

Publications

1 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

NKX2-5 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.21705896).

BS2

High AC in GnomAdExome4 at 99 AD,Unknown,SD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004387.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
NKX2-5	NM_004387.4	MANE Select	c.827C>G	p.Ala276Gly	missense	Exon 2 of 2	NP_004378.1
NKX2-5	NM_001166176.2		c.*626C>G		3_prime_UTR	Exon 2 of 2	NP_001159648.1
NKX2-5	NM_001166175.2		c.*780C>G		3_prime_UTR	Exon 2 of 2	NP_001159647.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
NKX2-5	ENST00000329198.5	TSL:1 MANE Select	c.827C>G	p.Ala276Gly	missense	Exon 2 of 2	ENSP00000327758.4
NKX2-5	ENST00000424406.2	TSL:1	c.*780C>G		downstream_gene	N/A	ENSP00000395378.2
NKX2-5	ENST00000521848.1	TSL:2	c.*626C>G		downstream_gene	N/A	ENSP00000427906.1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152274

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000421

AC:

AN:

237644

AF XY:

0.0000306

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000591

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000666

Gnomad OTH exome

AF:

0.000172

GnomAD4 exome

AF:

0.0000680

AC:

AN:

1455878

Hom.:

Cov.:

AF XY:

0.0000760

AC XY:

AN XY:

723500

show subpopulations

African (AFR)

AF:

0.0000300

AC:

AN:

33384

American (AMR)

AF:

0.0000677

AC:

AN:

44292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26046

East Asian (EAS)

AF:

0.00

AC:

AN:

39560

South Asian (SAS)

AF:

0.00

AC:

AN:

86034

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51794

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5750

European-Non Finnish (NFE)

AF:

0.0000821

AC:

AN:

1108978

Other (OTH)

AF:

0.0000666

AC:

AN:

60040

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.498

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000197

AC:

AN:

152274

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74402

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41474

American (AMR)

AF:

0.0000654

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5196

South Asian (SAS)

AF:

0.00

AC:

AN:

4838

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10630

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68052

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.608

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.0000283

Hom.:

Bravo

AF:

0.0000378

ExAC

AF:

0.0000496

AC:

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (2)

Atrial septal defect 7 (1)

Cardiovascular phenotype (1)

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 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.070

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.32

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.37

Eigen

Benign

-0.46

Eigen_PC

Benign

-0.35

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.35

M_CAP

Uncertain

0.23

MetaRNN

Benign

0.22

MetaSVM

Benign

-0.35

MutationAssessor

Benign

0.69

PhyloP100

4.8

PrimateAI

Uncertain

0.69

PROVEAN

Benign

-0.74

REVEL

Benign

0.26

Sift

Uncertain

0.022

Sift4G

Benign

0.064

Polyphen

0.0020

Vest4

0.16

MutPred

0.12

Gain of loop (P = 0.1081)

MVP

0.75

MPC

0.50

ClinPred

0.11

GERP RS

3.3

Varity_R

0.16

gMVP

0.56

Mutation Taster

=75/25

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

ClinVar submissions as Germline

Computational scores

Splicing

Publications

Other links and lift over