rs146964822

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6_Very_StrongBS2_Supporting

The NM_198994.3(TGM6):​c.380G>A​(p.Arg127Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000116 in 1,614,236 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R127W) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00037 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000090 ( 0 hom. )

Consequence

TGM6
NM_198994.3 missense

Scores

1
17

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.130

Publications

2 publications found
Variant links:
Genes affected
TGM6 (HGNC:16255): (transglutaminase 6) The protein encoded by this gene belongs to the transglutaminase superfamily. It catalyzes the cross-linking of proteins and the conjugation of polyamines to proteins. Mutations in this gene are associated with spinocerebellar ataxia type 35 (SCA35). Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2011]
TGM6 Gene-Disease associations (from GenCC):
  • spinocerebellar ataxia type 35
    Inheritance: AD Classification: STRONG, MODERATE, SUPPORTIVE, LIMITED Submitted by: Ambry Genetics, Illumina, Labcorp Genetics (formerly Invitae), Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.017571837).
BP6
Variant 20-2395392-G-A is Benign according to our data. Variant chr20-2395392-G-A is described in ClinVar as Benign. ClinVar VariationId is 448676.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAd4 at 56 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TGM6NM_198994.3 linkc.380G>A p.Arg127Gln missense_variant Exon 3 of 13 ENST00000202625.7 NP_945345.2
TGM6NM_001254734.2 linkc.380G>A p.Arg127Gln missense_variant Exon 3 of 12 NP_001241663.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TGM6ENST00000202625.7 linkc.380G>A p.Arg127Gln missense_variant Exon 3 of 13 1 NM_198994.3 ENSP00000202625.2
TGM6ENST00000381423.1 linkc.380G>A p.Arg127Gln missense_variant Exon 3 of 12 1 ENSP00000370831.1
TGM6ENST00000477505.1 linkn.174+767G>A intron_variant Intron 1 of 3 5

Frequencies

GnomAD3 genomes
AF:
0.000368
AC:
56
AN:
152226
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.000176
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000119
AC:
30
AN:
251492
AF XY:
0.0000589
show subpopulations
Gnomad AFR exome
AF:
0.00111
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000896
AC:
131
AN:
1461892
Hom.:
0
Cov.:
31
AF XY:
0.0000963
AC XY:
70
AN XY:
727248
show subpopulations
African (AFR)
AF:
0.000866
AC:
29
AN:
33480
American (AMR)
AF:
0.0000671
AC:
3
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.0000348
AC:
3
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000836
AC:
93
AN:
1112010
Other (OTH)
AF:
0.0000331
AC:
2
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
9
18
28
37
46
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000368
AC:
56
AN:
152344
Hom.:
0
Cov.:
32
AF XY:
0.000269
AC XY:
20
AN XY:
74488
show subpopulations
African (AFR)
AF:
0.000962
AC:
40
AN:
41582
American (AMR)
AF:
0.000196
AC:
3
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000176
AC:
12
AN:
68036
Other (OTH)
AF:
0.000473
AC:
1
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.494
Heterozygous variant carriers
0
4
8
12
16
20
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.000382
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000123
AC:
15
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Jun 16, 2017
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

not provided Benign:1
Oct 05, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.080
BayesDel_addAF
Benign
-0.34
T
BayesDel_noAF
Benign
-0.31
CADD
Benign
17
DANN
Uncertain
1.0
DEOGEN2
Benign
0.0014
T;.
Eigen
Benign
-0.37
Eigen_PC
Benign
-0.37
FATHMM_MKL
Benign
0.10
N
LIST_S2
Benign
0.60
T;T
M_CAP
Benign
0.068
D
MetaRNN
Benign
0.018
T;T
MetaSVM
Benign
-0.77
T
MutationAssessor
Benign
1.2
L;L
PhyloP100
0.13
PrimateAI
Benign
0.26
T
PROVEAN
Benign
-0.49
N;N
REVEL
Benign
0.21
Sift
Benign
0.32
T;T
Sift4G
Benign
0.39
T;T
Vest4
0.26
ClinPred
0.018
T
GERP RS
2.2
Varity_R
0.045
gMVP
0.23
Mutation Taster
=97/3
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs146964822; hg19: chr20-2376038; API