chr8-23702768-C-T

Variant summary

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

The NM_001136271.3(NKX2-6):​c.589G>A​(p.Glu197Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000257 in 1,555,338 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

NKX2-6
NM_001136271.3 missense

Scores

4
14
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.77
Variant links:
Genes affected
NKX2-6 (HGNC:32940): (NK2 homeobox 6) This gene encodes a homeobox-containing protein that belongs to the NK-2 homeobox family. This protein is a vertebrate homolog of Drosophila homeobox-containing protein called 'tinman', which has been shown to be essential for development of the heart-like dorsal vessel. In conjunction with related gene, NKX2-5, this gene may play a role in both pharyngeal and cardiac embryonic development. Mutations in this gene are associated with persistent truncus arteriosus.[provided by RefSeq, Aug 2011]

Genome browser will be placed here

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 UniProt
NKX2-6NM_001136271.3 linkuse as main transcriptc.589G>A p.Glu197Lys missense_variant 2/2 ENST00000325017.4
LOC107986930XR_001745842.2 linkuse as main transcriptn.1312+34018C>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NKX2-6ENST00000325017.4 linkuse as main transcriptc.589G>A p.Glu197Lys missense_variant 2/22 NM_001136271.3 P1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152218
Hom.:
0
Cov.:
33
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000613
AC:
1
AN:
163110
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
86000
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000399
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000214
AC:
3
AN:
1403120
Hom.:
0
Cov.:
33
AF XY:
0.00000144
AC XY:
1
AN XY:
692370
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000278
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:
0.00000185
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152218
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74366
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJan 26, 2022The c.589G>A (p.E197K) alteration is located in exon 2 (coding exon 2) of the NKX2-6 gene. This alteration results from a G to A substitution at nucleotide position 589, causing the glutamic acid (E) at amino acid position 197 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.82
BayesDel_addAF
Uncertain
0.13
D
BayesDel_noAF
Uncertain
-0.050
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.45
T
Eigen
Uncertain
0.46
Eigen_PC
Uncertain
0.31
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.97
D
M_CAP
Pathogenic
0.42
D
MetaRNN
Uncertain
0.50
D
MetaSVM
Uncertain
0.76
D
MutationAssessor
Uncertain
2.9
M
MutationTaster
Benign
0.97
D;D
PrimateAI
Uncertain
0.67
T
PROVEAN
Uncertain
-4.0
D
REVEL
Uncertain
0.48
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.36
MutPred
0.37
Gain of MoRF binding (P = 0.0029);
MVP
0.73
MPC
1.3
ClinPred
1.0
D
GERP RS
4.0
Varity_R
0.81
gMVP
0.55

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1268467612; hg19: chr8-23560281; API