20-23986563-C-T

Variant summary

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

The NM_178311.3(GGTLC1):​c.49G>A​(p.Asp17Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000137 in 1,611,326 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

GGTLC1
NM_178311.3 missense

Scores

1
17

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.743
Variant links:
Genes affected
GGTLC1 (HGNC:16437): (gamma-glutamyltransferase light chain 1) This gene encodes a member of the gamma-glutamyl transpeptidase (GGT) family, which are important in the metabolism of glutathione. The most ubiquitously expressed human GGT gene, GGT1, encodes a single transmembrane polypeptide that is post-translationally processed to form a heavy and a light chain. In contrast, the product of this gene only contains homology to the light chain region, and lacks a transmembrane domain. Multiple alternatively spliced variants, encoding the same protein, have been identified. [provided by RefSeq, Oct 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=0.062385052).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GGTLC1NM_178311.3 linkuse as main transcriptc.49G>A p.Asp17Asn missense_variant 2/6 ENST00000335694.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GGTLC1ENST00000335694.4 linkuse as main transcriptc.49G>A p.Asp17Asn missense_variant 2/61 NM_178311.3 P1
GGTLC1ENST00000278765.8 linkuse as main transcriptc.49G>A p.Asp17Asn missense_variant 2/61 P1
GGTLC1ENST00000286890.8 linkuse as main transcriptc.49G>A p.Asp17Asn missense_variant 1/51 P1

Frequencies

GnomAD3 genomes
AF:
0.0000198
AC:
3
AN:
151700
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000442
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000119
AC:
3
AN:
251072
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135718
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
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:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000130
AC:
19
AN:
1459626
Hom.:
0
Cov.:
44
AF XY:
0.0000179
AC XY:
13
AN XY:
726120
show subpopulations
Gnomad4 AFR exome
AF:
0.0000599
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:
0.0000135
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000198
AC:
3
AN:
151700
Hom.:
0
Cov.:
31
AF XY:
0.0000270
AC XY:
2
AN XY:
74040
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000442
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.086
BayesDel_addAF
Benign
-0.48
T
BayesDel_noAF
Benign
-0.85
CADD
Benign
1.5
DANN
Benign
0.86
DEOGEN2
Benign
0.0039
T;T;T
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.069
N
M_CAP
Benign
0.0016
T
MetaRNN
Benign
0.062
T;T;T
MetaSVM
Benign
-0.93
T
MutationAssessor
Benign
-0.13
N;N;N
MutationTaster
Benign
0.89
N;N;N
PrimateAI
Uncertain
0.49
T
PROVEAN
Benign
-0.83
N;N;N
REVEL
Benign
0.039
Sift
Benign
0.33
T;T;T
Sift4G
Benign
0.84
T;T;T
Polyphen
0.0
B;B;B
Vest4
0.13
MutPred
0.39
Loss of catalytic residue at D17 (P = 0.0915);Loss of catalytic residue at D17 (P = 0.0915);Loss of catalytic residue at D17 (P = 0.0915);
MVP
0.014
MPC
0.18
ClinPred
0.089
T
GERP RS
-0.67
Varity_R
0.049
gMVP
0.56

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: rs774521787; hg19: chr20-23967200; COSMIC: COSV53847834; COSMIC: COSV53847834; API