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GeneBe

16-3025957-G-C

Variant summary

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

The NM_024339.5(THOC6):c.189G>C(p.Glu63Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,884 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: not found (cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

THOC6
NM_024339.5 missense

Scores

2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.203
Variant links:
Genes affected
THOC6 (HGNC:28369): (THO complex subunit 6) This gene encodes a subunit of the multi-protein THO complex, which is involved in coordination between transcription and mRNA processing. The THO complex is a component of the TREX (transcription/export) complex, which is involved in transcription and export of mRNAs. A missense mutation in this gene is associated with a neurodevelopmental disorder called Beaulieu-Boycott-Innes syndrome. [provided by RefSeq, Dec 2016]

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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 UniProt
THOC6NM_024339.5 linkuse as main transcriptc.189G>C p.Glu63Asp missense_variant 3/13 ENST00000326266.13
THOC6NM_001347704.2 linkuse as main transcriptc.189G>C p.Glu63Asp missense_variant 4/14
THOC6NM_001347703.2 linkuse as main transcriptc.117G>C p.Glu39Asp missense_variant 4/14
THOC6NM_001142350.3 linkuse as main transcriptc.189G>C p.Glu63Asp missense_variant 3/12

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
THOC6ENST00000326266.13 linkuse as main transcriptc.189G>C p.Glu63Asp missense_variant 3/131 NM_024339.5 P1Q86W42-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000795
AC:
2
AN:
251484
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135916
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:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461884
Hom.:
0
Cov.:
36
AF XY:
0.00000275
AC XY:
2
AN XY:
727242
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:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.00000824
AC:
1

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 GeneticsFeb 13, 2024The c.189G>C (p.E63D) alteration is located in exon 3 (coding exon 3) of the THOC6 gene. This alteration results from a G to C substitution at nucleotide position 189, causing the glutamic acid (E) at amino acid position 63 to be replaced by an aspartic acid (D). 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
Benign
0.12
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.45
Cadd
Benign
17
Dann
Uncertain
0.98
DEOGEN2
Benign
0.040
T;.;.;.
Eigen
Benign
-0.41
Eigen_PC
Benign
-0.28
FATHMM_MKL
Benign
0.70
D
LIST_S2
Benign
0.80
T;.;T;T
M_CAP
Benign
0.0091
T
MetaRNN
Benign
0.11
T;T;T;T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
1.6
L;.;.;L
MutationTaster
Benign
0.93
D;D;D;D
PrimateAI
Uncertain
0.50
T
PROVEAN
Benign
-1.0
N;.;.;N
REVEL
Benign
0.081
Sift4G
Benign
0.20
T;T;T;T
Polyphen
0.016
B;.;.;B
Vest4
0.28
MutPred
0.33
Loss of methylation at K66 (P = 0.0989);.;.;Loss of methylation at K66 (P = 0.0989);
MVP
0.54
MPC
0.087
ClinPred
0.043
T
GERP RS
1.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.43
gMVP
0.20

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.22
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.22
Position offset: 4

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: rs775439608; hg19: chr16-3075958; API