14-77324600-A-G

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_145870.3(GSTZ1):​c.16-270A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00165 in 1,534,498 control chromosomes in the GnomAD database, including 50 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.0084 ( 27 hom., cov: 32)
Exomes 𝑓: 0.00090 ( 23 hom. )

Consequence

GSTZ1
NM_145870.3 intron

Scores

2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.602
Variant links:
Genes affected
GSTZ1 (HGNC:4643): (glutathione S-transferase zeta 1) This gene is a member of the glutathione S-transferase (GSTs) super-family which encodes multifunctional enzymes important in the detoxification of electrophilic molecules, including carcinogens, mutagens, and several therapeutic drugs, by conjugation with glutathione. This enzyme catalyzes the conversion of maleylacetoacetate to fumarylacetoacatate, which is one of the steps in the phenylalanine/tyrosine degradation pathway. Deficiency of a similar gene in mouse causes oxidative stress. Several transcript variants of this gene encode multiple protein isoforms. [provided by RefSeq, Jul 2015]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.89).
BP6
Variant 14-77324600-A-G is Benign according to our data. Variant chr14-77324600-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 3353098.Status of the report is no_assertion_criteria_provided, 0 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00844 (1285/152250) while in subpopulation AFR AF= 0.0293 (1216/41530). AF 95% confidence interval is 0.0279. There are 27 homozygotes in gnomad4. There are 604 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 27 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GSTZ1NM_145870.3 linkuse as main transcriptc.16-270A>G intron_variant ENST00000216465.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GSTZ1ENST00000216465.10 linkuse as main transcriptc.16-270A>G intron_variant 1 NM_145870.3

Frequencies

GnomAD3 genomes
AF:
0.00838
AC:
1275
AN:
152132
Hom.:
27
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0291
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00321
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.00527
GnomAD3 exomes
AF:
0.00187
AC:
254
AN:
135480
Hom.:
5
AF XY:
0.00149
AC XY:
110
AN XY:
73660
show subpopulations
Gnomad AFR exome
AF:
0.0280
Gnomad AMR exome
AF:
0.00220
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000133
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000189
Gnomad OTH exome
AF:
0.000962
GnomAD4 exome
AF:
0.000903
AC:
1248
AN:
1382248
Hom.:
23
Cov.:
28
AF XY:
0.000815
AC XY:
556
AN XY:
682232
show subpopulations
Gnomad4 AFR exome
AF:
0.0284
Gnomad4 AMR exome
AF:
0.00221
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000114
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000937
Gnomad4 OTH exome
AF:
0.00258
GnomAD4 genome
AF:
0.00844
AC:
1285
AN:
152250
Hom.:
27
Cov.:
32
AF XY:
0.00811
AC XY:
604
AN XY:
74446
show subpopulations
Gnomad4 AFR
AF:
0.0293
Gnomad4 AMR
AF:
0.00320
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.00521
Alfa
AF:
0.00438
Hom.:
2
Bravo
AF:
0.00948
Asia WGS
AF:
0.00231
AC:
8
AN:
3478

ClinVar

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

Submissions by phenotype

GSTZ1-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesSep 20, 2024This variant is classified as likely 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
BayesDel_noAF
Benign
-0.89
CADD
Benign
9.4
DANN
Benign
0.69

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: rs113602814; hg19: chr14-77790943; API