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GeneBe

20-34851304-G-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_178026.3(GGT7):c.1652C>T(p.Ala551Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000285 in 1,613,966 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000030 ( 1 hom. )

Consequence

GGT7
NM_178026.3 missense

Scores

4
3
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.57
Variant links:
Genes affected
GGT7 (HGNC:4259): (gamma-glutamyltransferase 7) This gene is a member of a gene family that encodes enzymes involved in both the metabolism of glutathione and in the transpeptidation of amino acids. Changes in the activity of gamma-glutamyltransferase may signal preneoplastic or toxic conditions in the liver or kidney. The protein encoded by this gene consists of a heavy and a light chain, and it can interact with CT120, a plasma membrane-associated protein that is possibly involved in lung carcinogenesis. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.21569234).
BS2
High AC in GnomAdExome at 6 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GGT7NM_178026.3 linkuse as main transcriptc.1652C>T p.Ala551Val missense_variant 13/15 ENST00000336431.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GGT7ENST00000336431.10 linkuse as main transcriptc.1652C>T p.Ala551Val missense_variant 13/151 NM_178026.3 P1Q9UJ14-1
GGT7ENST00000470952.2 linkuse as main transcriptc.185C>T p.Ala62Val missense_variant 2/35
GGT7ENST00000469018.5 linkuse as main transcriptc.278C>T p.Ala93Val missense_variant, NMD_transcript_variant 3/65

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152242
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
250784
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135622
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.000131
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000883
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000301
AC:
44
AN:
1461606
Hom.:
1
Cov.:
32
AF XY:
0.0000330
AC XY:
24
AN XY:
727100
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000313
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000126
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152360
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74506
show subpopulations
Gnomad4 AFR
AF:
0.0000240
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsOct 04, 2022The c.1652C>T (p.A551V) alteration is located in exon 13 (coding exon 13) of the GGT7 gene. This alteration results from a C to T substitution at nucleotide position 1652, causing the alanine (A) at amino acid position 551 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.35
Cadd
Uncertain
25
Dann
Pathogenic
1.0
DEOGEN2
Benign
0.11
T
Eigen
Pathogenic
0.71
Eigen_PC
Pathogenic
0.75
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.79
T
M_CAP
Benign
0.011
T
MetaRNN
Benign
0.22
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.3
M
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.68
T
PROVEAN
Benign
-1.5
N
REVEL
Benign
0.16
Sift
Benign
0.11
T
Sift4G
Uncertain
0.021
D
Polyphen
0.93
P
Vest4
0.38
MVP
0.093
MPC
0.49
ClinPred
0.83
D
GERP RS
5.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.23
gMVP
0.78

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs201808310; hg19: chr20-33439107; COSMIC: COSV60540599; API