14-36520105-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001079668.3(NKX2-1):​c.25G>T​(p.Ala9Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,918 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

NKX2-1
NM_001079668.3 missense

Scores

3
6
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.163
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-AS1 (HGNC:40585): (NKX2-1 antisense RNA 1)

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
NKX2-1NM_001079668.3 linkuse as main transcriptc.25G>T p.Ala9Ser missense_variant 1/3 ENST00000354822.7 NP_001073136.1
NKX2-1-AS1NR_103710.1 linkuse as main transcriptn.402+426C>A intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
NKX2-1ENST00000354822.7 linkuse as main transcriptc.25G>T p.Ala9Ser missense_variant 1/31 NM_001079668.3 ENSP00000346879 P4P43699-3
NKX2-1-AS1ENST00000521292.2 linkuse as main transcriptn.402+426C>A intron_variant, non_coding_transcript_variant 2
ENST00000634305.1 linkuse as main transcriptn.322+71268C>A intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1460918
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
726804
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

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 submitterclinical testingGeneDxMay 20, 2023Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Uncertain
0.033
T
BayesDel_noAF
Benign
-0.19
CADD
Uncertain
24
DANN
Uncertain
1.0
Eigen
Benign
0.079
Eigen_PC
Benign
0.056
FATHMM_MKL
Uncertain
0.84
D
LIST_S2
Benign
0.50
T;T
M_CAP
Pathogenic
0.99
D
MetaRNN
Uncertain
0.44
T;T
MetaSVM
Uncertain
0.35
D
MutationTaster
Benign
1.0
D;D;N
PrimateAI
Pathogenic
0.83
D
PROVEAN
Benign
-0.19
N;D
REVEL
Uncertain
0.31
Sift
Pathogenic
0.0
D;.
Sift4G
Benign
0.55
T;.
Polyphen
0.76
P;.
Vest4
0.21
MutPred
0.22
Gain of phosphorylation at A9 (P = 0.0037);Gain of phosphorylation at A9 (P = 0.0037);
MVP
0.87
ClinPred
0.97
D
GERP RS
2.9
gMVP
0.075

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr14-36989310; API