Genetic Variant GCLC:c.1703-8G>A (chr6-53498975-C-T) – ACMG Classification: Benign (-12 pts)

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_StrongBP6_Very_Strong

The NM_001498.4(GCLC):c.1703-8G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000582 in 1,592,652 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00045 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00060 ( 0 hom. )

Consequence

GCLC
NM_001498.4 splice_region, intron

Scores

Splicing: ADA: 0.0002488

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -1.27

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]

GCLC links:

GCLC-AS1 (HGNC:56649): (GCLC antisense RNA 1)

GCLC-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -12 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.84).

BP6

Variant 6-53498975-C-T is Benign according to our data. Variant chr6-53498975-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 1330719.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GCLC	NM_001498.4 link	c.1703-8G>A		splice_region_variant, intron_variant	Intron 15 of 15	ENST00000650454.1	NP_001489.1	P48506Q14TF0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GCLC	ENST00000650454.1 link	c.1703-8G>A		splice_region_variant, intron_variant	Intron 15 of 15		NM_001498.4	ENSP00000497574.1		P48506

Frequencies

GnomAD3 genomes

AF:

0.000447

AC:

AN:

150052

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000662

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00110

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000813

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000531

AC:

131

AN:

246888

AF XY:

0.000539

show subpopulations

Gnomad AFR exome

AF:

0.0000618

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00130

Gnomad NFE exome

AF:

0.000891

Gnomad OTH exome

AF:

0.000661

GnomAD4 exome

AF:

0.000596

AC:

860

AN:

1442506

Hom.:

Cov.:

AF XY:

0.000600

AC XY:

431

AN XY:

718602

show subpopulations

Gnomad4 AFR exome

AF:

0.000121

AC:

AN:

33052

Gnomad4 AMR exome

AF:

0.00

AC:

AN:

44634

Gnomad4 ASJ exome

AF:

0.00

AC:

AN:

25948

Gnomad4 EAS exome

AF:

0.0000505

AC:

AN:

39588

Gnomad4 SAS exome

AF:

0.00

AC:

AN:

85610

Gnomad4 FIN exome

AF:

0.00148

AC:

AN:

53382

Gnomad4 NFE exome

AF:

0.000688

AC:

753

AN:

1094904

Gnomad4 Remaining exome

AF:

0.000369

AC:

AN:

59674

Heterozygous variant carriers

127

169

211

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Exome Het

Variant carriers

112

140

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000446

AC:

AN:

150146

Hom.:

Cov.:

AF XY:

0.000410

AC XY:

AN XY:

73132

show subpopulations

Gnomad4 AFR

AF:

0.00

AC:

AN:

Gnomad4 AMR

AF:

0.0000661

AC:

0.0000661113

AN:

0.0000661113

Gnomad4 ASJ

AF:

0.00

AC:

AN:

Gnomad4 EAS

AF:

0.00

AC:

AN:

Gnomad4 SAS

AF:

0.00

AC:

AN:

Gnomad4 FIN

AF:

0.00110

AC:

0.0011022

AN:

0.0011022

Gnomad4 NFE

AF:

0.000813

AC:

0.000812912

AN:

0.000812912

Gnomad4 OTH

AF:

0.00

AC:

AN:

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000595

Hom.:

Bravo

AF:

0.000302

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Apr 26, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jun 30, 2021

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.84

CADD

Benign

0.98

DANN

Benign

0.27

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Mutation Taster

=100/0

polymorphism

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00025

dbscSNV1_RF

Benign

0.024

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over