rs201645096

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 3P and 13B. PM5PP3BP4BP6_Very_StrongBS2

The NM_198994.3(TGM6):​c.1025G>A​(p.Arg342Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000139 in 1,614,092 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 Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R342W) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.00065 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000086 ( 0 hom. )

Consequence

TGM6
NM_198994.3 missense

Scores

13
3
3

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 10.0

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 -10 ACMG points.

PM5
Other missense variant is known to change same aminoacid residue: Variant chr20-2403431-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 1333238.
PP3
Multiple lines of computational evidence support a deleterious effect 10: AlphaMissense, BayesDel_addAF, BayesDel_noAF, Cadd, Dann, Eigen, MutationAssessor, phyloP100way_vertebrate, REVEL, REVEL [when max_spliceai, FATHMM_MKL, M_CAP, MetaRNN, MutationTaster was below the threshold]
BP4
Computational evidence support a benign effect (MetaRNN=0.39173305).
BP6
Variant 20-2403432-G-A is Benign according to our data. Variant chr20-2403432-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 437002.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAd4 at 99 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TGM6NM_198994.3 linkc.1025G>A p.Arg342Gln missense_variant Exon 8 of 13 ENST00000202625.7 NP_945345.2 O95932-1
TGM6NM_001254734.2 linkc.1025G>A p.Arg342Gln missense_variant Exon 8 of 12 NP_001241663.1 O95932-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TGM6ENST00000202625.7 linkc.1025G>A p.Arg342Gln missense_variant Exon 8 of 13 1 NM_198994.3 ENSP00000202625.2 O95932-1
TGM6ENST00000381423.1 linkc.1025G>A p.Arg342Gln missense_variant Exon 8 of 12 1 ENSP00000370831.1 O95932-2

Frequencies

GnomAD3 genomes
AF:
0.000658
AC:
100
AN:
152090
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00229
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000167
AC:
42
AN:
251454
AF XY:
0.000132
show subpopulations
Gnomad AFR exome
AF:
0.00172
Gnomad AMR exome
AF:
0.000173
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000163
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.0000862
AC:
126
AN:
1461884
Hom.:
0
Cov.:
32
AF XY:
0.0000784
AC XY:
57
AN XY:
727242
show subpopulations
African (AFR)
AF:
0.00191
AC:
64
AN:
33480
American (AMR)
AF:
0.000157
AC:
7
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.000202
AC:
8
AN:
39700
South Asian (SAS)
AF:
0.000128
AC:
11
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53416
Middle Eastern (MID)
AF:
0.000347
AC:
2
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000126
AC:
14
AN:
1112012
Other (OTH)
AF:
0.000331
AC:
20
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.473
Heterozygous variant carriers
0
10
20
31
41
51
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:
0.000650
AC:
99
AN:
152208
Hom.:
0
Cov.:
32
AF XY:
0.000591
AC XY:
44
AN XY:
74414
show subpopulations
African (AFR)
AF:
0.00229
AC:
95
AN:
41534
American (AMR)
AF:
0.000131
AC:
2
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5166
South Asian (SAS)
AF:
0.000208
AC:
1
AN:
4816
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10610
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68016
Other (OTH)
AF:
0.00
AC:
0
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.498
Heterozygous variant carriers
0
5
10
16
21
26
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:
0.000392
Hom.:
0
Bravo
AF:
0.000654
ESP6500AA
AF:
0.00182
AC:
8
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000165
AC:
20
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Jan 27, 2020
Genetic Services Laboratory, University of Chicago
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Sep 18, 2020
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
Jul 24, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.71
BayesDel_addAF
Pathogenic
0.21
D
BayesDel_noAF
Pathogenic
0.52
CADD
Pathogenic
32
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.66
D;.
Eigen
Pathogenic
0.97
Eigen_PC
Pathogenic
0.90
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.99
D;D
M_CAP
Benign
0.081
D
MetaRNN
Benign
0.39
T;T
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
4.1
H;H
PhyloP100
10
PrimateAI
Uncertain
0.54
T
PROVEAN
Uncertain
-3.7
D;D
REVEL
Pathogenic
0.87
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0
D;D
Polyphen
1.0
D;D
Vest4
0.94
MVP
0.84
MPC
0.49
ClinPred
0.25
T
GERP RS
4.9
Varity_R
0.92
gMVP
0.76
Mutation Taster
=64/36
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs201645096; hg19: chr20-2384078; API