14-36520112-A-T

Position:

chr14-36520112-A-T

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_ModerateBS1_SupportingBS2

The NM_001079668.3(NKX2-1):c.18T>A(p.Ser6Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000322 in 1,612,896 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

NKX2-1
NM_001079668.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.327

Variant links:

Genes affected

NKX2-1 (HGNC:11825): (NK2 homeobox 1) This gene encodes a protein initially identified as a thyroid-specific transcription factor. The encoded protein binds to the thyroglobulin promoter and regulates the expression of thyroid-specific genes but has also been shown to regulate the expression of genes involved in morphogenesis. Mutations and deletions in this gene are associated with benign hereditary chorea, choreoathetosis, congenital hypothyroidism, and neonatal respiratory distress, and may be associated with thyroid cancer. Multiple transcript variants encoding different isoforms have been found for this gene. This gene shares the symbol/alias 'TTF1' with another gene, transcription termination factor 1, which plays a role in ribosomal gene transcription. [provided by RefSeq, Feb 2014]

NKX2-1 links:

NKX2-1-AS1 (HGNC:40585): (NKX2-1 antisense RNA 1)

NKX2-1-AS1 links:

(HGNC:):

links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.19105965).

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0000197 (3/152024) while in subpopulation NFE AF= 0.0000441 (3/67986). AF 95% confidence interval is 0.0000117. There are 0 homozygotes in gnomad4. There are 1 alleles in male gnomad4 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

BS2

High AC in GnomAdExome4 at 49 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
NKX2-1	NM_001079668.3 linkuse as main transcript	c.18T>A	p.Ser6Arg	missense_variant	1/3	ENST00000354822.7	NP_001073136.1
NKX2-1-AS1	NR_103710.1 linkuse as main transcript	n.402+433A>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
NKX2-1	ENST00000354822.7 linkuse as main transcript	c.18T>A	p.Ser6Arg	missense_variant	1/3	1	NM_001079668.3	ENSP00000346879	P4	P43699-3
NKX2-1-AS1	ENST00000521292.2 linkuse as main transcript	n.402+433A>T		intron_variant, non_coding_transcript_variant		2
	ENST00000634305.1 linkuse as main transcript	n.322+71275A>T		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152024

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:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000125

AC:

AN:

239884

Hom.:

AF XY:

0.00000760

AC XY:

AN XY:

131662

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000282

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000335

AC:

AN:

1460872

Hom.:

Cov.:

AF XY:

0.0000330

AC XY:

AN XY:

726776

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.0000432

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152024

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74270

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000189

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 04, 2023

This sequence change replaces serine, which is neutral and polar, with arginine, which is basic and polar, at codon 6 of the NKX2-1 protein (p.Ser6Arg). This variant is present in population databases (no rsID available, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with NKX2-1-related conditions. ClinVar contains an entry for this variant (Variation ID: 2199154). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant¬†is likely to be tolerated. 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

BayesDel_addAF

Benign

-0.078

BayesDel_noAF

Benign

-0.27

CADD

Benign

DANN

Uncertain

1.0

Eigen

Benign

-0.43

Eigen_PC

Benign

-0.37

FATHMM_MKL

Benign

0.62

LIST_S2

Benign

0.38

T;T

M_CAP

Pathogenic

0.80

MetaRNN

Benign

0.19

T;T

MetaSVM

Benign

-0.33

MutationTaster

Benign

1.0

D;D;N

PrimateAI

Uncertain

0.77

PROVEAN

Benign

-0.41

N;D

REVEL

Benign

0.20

Sift

Benign

0.039

D;.

Sift4G

Benign

0.16

T;.

Polyphen

0.022

B;.

Vest4

0.19

MutPred

0.23

Loss of glycosylation at S6 (P = 0.0035);Loss of glycosylation at S6 (P = 0.0035);

MVP

0.73

ClinPred

0.44

GERP RS

2.7

gMVP

0.15

Splicing

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