5-173234786-G-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_004387.4(NKX2-5):c.298C>A(p.Pro100Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000764 in 1,570,500 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 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. P100L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000078 ( 0 hom. )

Consequence

NKX2-5
NM_004387.4 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 1.16

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: Benign. The variant received -7 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.09879169).

BP6

Variant 5-173234786-G-T is Benign according to our data. Variant chr5-173234786-G-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 578303.

BS2

High AC in GnomAdExome4 at 11 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.298C>A	p.Pro100Thr	missense	Exon 1 of 2	NP_004378.1
NKX2-5	NM_001166176.2		c.298C>A	p.Pro100Thr	missense	Exon 1 of 2	NP_001159648.1
NKX2-5	NM_001166175.2		c.298C>A	p.Pro100Thr	missense	Exon 1 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.298C>A	p.Pro100Thr	missense	Exon 1 of 2	ENSP00000327758.4
NKX2-5	ENST00000424406.2	TSL:1	c.298C>A	p.Pro100Thr	missense	Exon 1 of 2	ENSP00000395378.2
NKX2-5	ENST00000521848.1	TSL:2	c.298C>A	p.Pro100Thr	missense	Exon 1 of 2	ENSP00000427906.1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152190

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000145

AC:

AN:

207084

AF XY:

0.0000177

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000633

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000776

AC:

AN:

1418310

Hom.:

Cov.:

AF XY:

0.0000114

AC XY:

AN XY:

702480

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

30500

American (AMR)

AF:

0.00

AC:

AN:

37700

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

23330

East Asian (EAS)

AF:

0.0000262

AC:

AN:

38222

South Asian (SAS)

AF:

0.0000502

AC:

AN:

79634

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51982

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5546

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1093092

Other (OTH)

AF:

0.000103

AC:

AN:

58304

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.439

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:

0.00000657

AC:

AN:

152190

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74350

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41440

American (AMR)

AF:

0.00

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.000207

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68038

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

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:

0.00

Hom.:

Bravo

AF:

0.0000113

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Cardiovascular phenotype

Uncertain:1

Jan 27, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The p.P100T variant (also known as c.298C>A), located in coding exon 1 of the NKX2-5 gene, results from a C to A substitution at nucleotide position 298. The proline at codon 100 is replaced by threonine, an amino acid with highly similar properties. This amino acid position is not well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.

Atrial septal defect 7

Benign:1

Dec 24, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.065

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.34

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.24

Eigen

Benign

-0.61

Eigen_PC

Benign

-0.52

FATHMM_MKL

Benign

0.71

LIST_S2

Benign

0.77

M_CAP

Benign

0.076

MetaRNN

Benign

0.099

MetaSVM

Benign

-0.53

MutationAssessor

Benign

0.90

PhyloP100

1.2

PrimateAI

Uncertain

0.51

PROVEAN

Benign

-0.32

REVEL

Benign

0.17

Sift

Benign

0.60

Sift4G

Benign

0.65

Polyphen

0.0

Vest4

0.12

MutPred

0.16

Gain of phosphorylation at P100 (P = 0.0167)

MVP

0.57

MPC

0.57

ClinPred

0.037

GERP RS

0.25

PromoterAI

0.056

Neutral

(source)

Varity_R

0.056

gMVP

0.33

Mutation Taster

=89/11

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

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over