20-2317144-G-A

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BA1

The NM_003245.4(TGM3):​c.746G>A​(p.Ser249Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.113 in 1,613,926 control chromosomes in the GnomAD database, including 11,007 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (no stars). Another nucleotide change resulting in same amino acid change has been previously reported as Likely benignin UniProt.

Frequency

Genomes: 𝑓 0.13 ( 1509 hom., cov: 31)
Exomes 𝑓: 0.11 ( 9498 hom. )

Consequence

TGM3
NM_003245.4 missense

Scores

18

Clinical Significance

Benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.243
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 Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0022105575).
BP6
Variant 20-2317144-G-A is Benign according to our data. Variant chr20-2317144-G-A is described in ClinVar as [Benign]. Clinvar id is 3061032.Status of the report is no_assertion_criteria_provided, 0 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.188 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TGM3NM_003245.4 linkuse as main transcriptc.746G>A p.Ser249Asn missense_variant 6/13 ENST00000381458.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TGM3ENST00000381458.6 linkuse as main transcriptc.746G>A p.Ser249Asn missense_variant 6/131 NM_003245.4 P1
TGM3ENST00000463090.1 linkuse as main transcriptn.126G>A non_coding_transcript_exon_variant 2/43

Frequencies

GnomAD3 genomes
AF:
0.133
AC:
20168
AN:
152046
Hom.:
1490
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.192
Gnomad AMI
AF:
0.0866
Gnomad AMR
AF:
0.106
Gnomad ASJ
AF:
0.127
Gnomad EAS
AF:
0.0840
Gnomad SAS
AF:
0.0621
Gnomad FIN
AF:
0.109
Gnomad MID
AF:
0.139
Gnomad NFE
AF:
0.116
Gnomad OTH
AF:
0.133
GnomAD3 exomes
AF:
0.109
AC:
27313
AN:
251338
Hom.:
1667
AF XY:
0.107
AC XY:
14570
AN XY:
135838
show subpopulations
Gnomad AFR exome
AF:
0.195
Gnomad AMR exome
AF:
0.0855
Gnomad ASJ exome
AF:
0.125
Gnomad EAS exome
AF:
0.0792
Gnomad SAS exome
AF:
0.0683
Gnomad FIN exome
AF:
0.113
Gnomad NFE exome
AF:
0.117
Gnomad OTH exome
AF:
0.113
GnomAD4 exome
AF:
0.111
AC:
161571
AN:
1461762
Hom.:
9498
Cov.:
33
AF XY:
0.110
AC XY:
79685
AN XY:
727174
show subpopulations
Gnomad4 AFR exome
AF:
0.199
Gnomad4 AMR exome
AF:
0.0856
Gnomad4 ASJ exome
AF:
0.124
Gnomad4 EAS exome
AF:
0.0732
Gnomad4 SAS exome
AF:
0.0679
Gnomad4 FIN exome
AF:
0.112
Gnomad4 NFE exome
AF:
0.113
Gnomad4 OTH exome
AF:
0.112
GnomAD4 genome
AF:
0.133
AC:
20219
AN:
152164
Hom.:
1509
Cov.:
31
AF XY:
0.130
AC XY:
9654
AN XY:
74400
show subpopulations
Gnomad4 AFR
AF:
0.192
Gnomad4 AMR
AF:
0.105
Gnomad4 ASJ
AF:
0.127
Gnomad4 EAS
AF:
0.0834
Gnomad4 SAS
AF:
0.0626
Gnomad4 FIN
AF:
0.109
Gnomad4 NFE
AF:
0.116
Gnomad4 OTH
AF:
0.143
Alfa
AF:
0.118
Hom.:
1907
Bravo
AF:
0.136
TwinsUK
AF:
0.104
AC:
386
ALSPAC
AF:
0.104
AC:
399
ESP6500AA
AF:
0.200
AC:
881
ESP6500EA
AF:
0.115
AC:
992
ExAC
AF:
0.112
AC:
13611
Asia WGS
AF:
0.133
AC:
465
AN:
3478
EpiCase
AF:
0.113
EpiControl
AF:
0.115

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

TGM3-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesNov 12, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.064
BayesDel_addAF
Benign
-0.65
T
BayesDel_noAF
Benign
-0.56
CADD
Benign
7.7
DANN
Benign
0.51
DEOGEN2
Benign
0.23
T
Eigen
Benign
-1.0
Eigen_PC
Benign
-0.94
FATHMM_MKL
Benign
0.057
N
LIST_S2
Benign
0.021
T
MetaRNN
Benign
0.0022
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.015
N
MutationTaster
Benign
1.0
P
PrimateAI
Benign
0.41
T
PROVEAN
Benign
0.35
N
REVEL
Benign
0.22
Sift
Benign
0.59
T
Sift4G
Benign
0.51
T
Polyphen
0.0
B
Vest4
0.012
MPC
0.074
ClinPred
0.00071
T
GERP RS
-0.39
Varity_R
0.13
gMVP
0.095

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: rs214814; hg19: chr20-2297790; COSMIC: COSV67352542; API