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chr22-29508512-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_003678.5(THOC5):​c.1997G>A​(p.Ser666Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000372 in 1,613,846 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

THOC5
NM_003678.5 missense

Scores

3
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.08
Variant links:
Genes affected
THOC5 (HGNC:19074): (THO complex subunit 5) Predicted to enable mRNA binding activity. Involved in several processes, including monocyte differentiation; negative regulation of DNA damage checkpoint; and viral mRNA export from host cell nucleus. Located in nucleoplasm. Part of THO complex part of transcription export complex. Colocalizes with chromosome, telomeric region. Implicated in breast carcinoma. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.030299932).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
THOC5NM_003678.5 linkuse as main transcriptc.1997G>A p.Ser666Asn missense_variant 20/20 ENST00000490103.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
THOC5ENST00000490103.6 linkuse as main transcriptc.1997G>A p.Ser666Asn missense_variant 20/201 NM_003678.5 P1

Frequencies

GnomAD3 genomes
AF:
0.000217
AC:
33
AN:
152150
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000682
AC:
17
AN:
249098
Hom.:
0
AF XY:
0.0000445
AC XY:
6
AN XY:
134846
show subpopulations
Gnomad AFR exome
AF:
0.00105
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000185
AC:
27
AN:
1461578
Hom.:
0
Cov.:
30
AF XY:
0.0000179
AC XY:
13
AN XY:
727116
show subpopulations
Gnomad4 AFR exome
AF:
0.000777
Gnomad4 AMR exome
AF:
0.0000224
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.000217
AC:
33
AN:
152268
Hom.:
0
Cov.:
32
AF XY:
0.000215
AC XY:
16
AN XY:
74454
show subpopulations
Gnomad4 AFR
AF:
0.000722
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000142
Hom.:
0
Bravo
AF:
0.000253
ESP6500AA
AF:
0.000681
AC:
3
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000576
AC:
7

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 02, 2021The c.1997G>A (p.S666N) alteration is located in exon 21 (coding exon 19) of the THOC5 gene. This alteration results from a G to A substitution at nucleotide position 1997, causing the serine (S) at amino acid position 666 to be replaced by an asparagine (N). 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
0.11
BayesDel_addAF
Benign
-0.60
T
BayesDel_noAF
Benign
-0.70
CADD
Benign
14
DANN
Uncertain
0.98
DEOGEN2
Benign
0.033
T;T;T;T
Eigen
Benign
-0.31
Eigen_PC
Benign
-0.13
FATHMM_MKL
Uncertain
0.85
D
M_CAP
Benign
0.0030
T
MetaRNN
Benign
0.030
T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
-0.90
N;N;N;N
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.55
T
PROVEAN
Benign
-0.090
N;N;N;N
REVEL
Benign
0.11
Sift
Benign
0.31
T;T;T;T
Sift4G
Benign
0.61
T;T;T;T
Polyphen
0.0
B;B;B;B
Vest4
0.044
MVP
0.18
MPC
0.49
ClinPred
0.048
T
GERP RS
3.8
Varity_R
0.21
gMVP
0.27

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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: rs139614127; hg19: chr22-29904501; API