rs2066508

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001498.4(GCLC):​c.234G>T​(p.Leu78=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0343 in 1,609,212 control chromosomes in the GnomAD database, including 1,111 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.028 ( 88 hom., cov: 32)
Exomes 𝑓: 0.035 ( 1023 hom. )

Consequence

GCLC
NM_001498.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.578
Variant links:
Genes affected
GCLC (HGNC:4311): (glutamate-cysteine ligase catalytic subunit) Glutamate-cysteine ligase, also known as gamma-glutamylcysteine synthetase is the first rate-limiting enzyme of glutathione synthesis. The enzyme consists of two subunits, a heavy catalytic subunit and a light regulatory subunit. This locus encodes the catalytic subunit, while the regulatory subunit is derived from a different gene located on chromosome 1p22-p21. Mutations at this locus have been associated with hemolytic anemia due to deficiency of gamma-glutamylcysteine synthetase and susceptibility to myocardial infarction.[provided by RefSeq, Oct 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.62).
BP6
Variant 6-53522444-C-A is Benign according to our data. Variant chr6-53522444-C-A is described in ClinVar as [Benign]. Clinvar id is 993340.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.578 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0281 (4283/152344) while in subpopulation NFE AF= 0.0407 (2768/68022). AF 95% confidence interval is 0.0394. There are 88 homozygotes in gnomad4. There are 2056 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 88 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GCLCNM_001498.4 linkuse as main transcriptc.234G>T p.Leu78= synonymous_variant 2/16 ENST00000650454.1
GCLCNM_001197115.2 linkuse as main transcriptc.234G>T p.Leu78= synonymous_variant 2/15

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GCLCENST00000650454.1 linkuse as main transcriptc.234G>T p.Leu78= synonymous_variant 2/16 NM_001498.4 P1

Frequencies

GnomAD3 genomes
AF:
0.0281
AC:
4283
AN:
152226
Hom.:
88
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00822
Gnomad AMI
AF:
0.117
Gnomad AMR
AF:
0.0249
Gnomad ASJ
AF:
0.0185
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.0116
Gnomad FIN
AF:
0.0475
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.0407
Gnomad OTH
AF:
0.0282
GnomAD3 exomes
AF:
0.0270
AC:
6789
AN:
251428
Hom.:
128
AF XY:
0.0272
AC XY:
3703
AN XY:
135896
show subpopulations
Gnomad AFR exome
AF:
0.00782
Gnomad AMR exome
AF:
0.0142
Gnomad ASJ exome
AF:
0.0164
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.0135
Gnomad FIN exome
AF:
0.0455
Gnomad NFE exome
AF:
0.0389
Gnomad OTH exome
AF:
0.0303
GnomAD4 exome
AF:
0.0350
AC:
50934
AN:
1456868
Hom.:
1023
Cov.:
28
AF XY:
0.0346
AC XY:
25100
AN XY:
725156
show subpopulations
Gnomad4 AFR exome
AF:
0.00610
Gnomad4 AMR exome
AF:
0.0148
Gnomad4 ASJ exome
AF:
0.0197
Gnomad4 EAS exome
AF:
0.000126
Gnomad4 SAS exome
AF:
0.0142
Gnomad4 FIN exome
AF:
0.0462
Gnomad4 NFE exome
AF:
0.0398
Gnomad4 OTH exome
AF:
0.0280
GnomAD4 genome
AF:
0.0281
AC:
4283
AN:
152344
Hom.:
88
Cov.:
32
AF XY:
0.0276
AC XY:
2056
AN XY:
74504
show subpopulations
Gnomad4 AFR
AF:
0.00820
Gnomad4 AMR
AF:
0.0248
Gnomad4 ASJ
AF:
0.0185
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.0116
Gnomad4 FIN
AF:
0.0475
Gnomad4 NFE
AF:
0.0407
Gnomad4 OTH
AF:
0.0279
Alfa
AF:
0.0361
Hom.:
122
Bravo
AF:
0.0247
Asia WGS
AF:
0.00462
AC:
16
AN:
3478
EpiCase
AF:
0.0383
EpiControl
AF:
0.0373

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingInvitaeJan 29, 2024- -
Benign, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesNov 22, 2023- -
GCLC-related disorder Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesJul 08, 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
BayesDel_noAF
Benign
-0.62
CADD
Benign
0.53
DANN
Benign
0.70

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: rs2066508; hg19: chr6-53387242; API