20-2310324-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6_Moderate

The NM_003245.4(TGM3):​c.328C>T​(p.Arg110Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000904 in 1,614,218 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00032 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000067 ( 0 hom. )

Consequence

TGM3
NM_003245.4 missense

Scores

2
1
16

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.05
Variant links:
Genes affected
TGM3 (HGNC:11779): (transglutaminase 3) Transglutaminases are enzymes that catalyze the crosslinking of proteins by epsilon-gamma glutamyl lysine isopeptide bonds. While the primary structure of transglutaminases is not conserved, they all have the same amino acid sequence at their active sites and their activity is calcium-dependent. The protein encoded by this gene consists of two polypeptide chains activated from a single precursor protein by proteolysis. The encoded protein is involved the later stages of cell envelope formation in the epidermis and hair follicle. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

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=0.25993925).
BP6
Variant 20-2310324-C-T is Benign according to our data. Variant chr20-2310324-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 2320744.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TGM3NM_003245.4 linkuse as main transcriptc.328C>T p.Arg110Trp missense_variant 3/13 ENST00000381458.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TGM3ENST00000381458.6 linkuse as main transcriptc.328C>T p.Arg110Trp missense_variant 3/131 NM_003245.4 P1

Frequencies

GnomAD3 genomes
AF:
0.000315
AC:
48
AN:
152216
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000386
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00196
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:
0.000479
GnomAD3 exomes
AF:
0.000123
AC:
31
AN:
251374
Hom.:
0
AF XY:
0.000110
AC XY:
15
AN XY:
135854
show subpopulations
Gnomad AFR exome
AF:
0.000431
Gnomad AMR exome
AF:
0.000347
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000217
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000616
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000670
AC:
98
AN:
1461884
Hom.:
0
Cov.:
32
AF XY:
0.0000660
AC XY:
48
AN XY:
727242
show subpopulations
Gnomad4 AFR exome
AF:
0.000508
Gnomad4 AMR exome
AF:
0.000626
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000126
Gnomad4 SAS exome
AF:
0.0000696
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000252
Gnomad4 OTH exome
AF:
0.000232
GnomAD4 genome
AF:
0.000315
AC:
48
AN:
152334
Hom.:
0
Cov.:
33
AF XY:
0.000309
AC XY:
23
AN XY:
74494
show subpopulations
Gnomad4 AFR
AF:
0.000385
Gnomad4 AMR
AF:
0.00196
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:
0.000474
Alfa
AF:
0.0000697
Hom.:
0
Bravo
AF:
0.000366
ESP6500AA
AF:
0.000908
AC:
4
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000148
AC:
18
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsJun 24, 2022This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.094
BayesDel_addAF
Benign
-0.35
T
BayesDel_noAF
Benign
-0.41
CADD
Benign
13
DANN
Benign
0.97
DEOGEN2
Pathogenic
0.89
D
Eigen
Benign
-0.77
Eigen_PC
Benign
-0.83
FATHMM_MKL
Benign
0.039
N
LIST_S2
Benign
0.61
T
M_CAP
Benign
0.035
D
MetaRNN
Benign
0.26
T
MetaSVM
Benign
-0.59
T
MutationAssessor
Benign
1.2
L
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.18
T
PROVEAN
Pathogenic
-5.7
D
REVEL
Benign
0.23
Sift
Benign
0.064
T
Sift4G
Uncertain
0.043
D
Polyphen
0.0030
B
Vest4
0.28
MVP
0.87
MPC
0.084
ClinPred
0.024
T
GERP RS
1.7
Varity_R
0.37
gMVP
0.61

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: rs139117716; hg19: chr20-2290970; COSMIC: COSV67350304; COSMIC: COSV67350304; API