Genetic Variant GK:c.78+9G>A (chrX-30653624-G-A) – ACMG Classification: Benign (-7 pts)

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_StrongBP6_ModerateBS2_Supporting

The NM_001205019.2(GK):c.78+9G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000143 in 1,194,119 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 57 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., 5 hem., cov: 24)

Exomes 𝑓: 0.00015 ( 0 hom. 52 hem. )

Consequence

GK
NM_001205019.2 intron

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:2

Conservation

PhyloP100: -0.474

Variant links:

Genes affected

GK (HGNC:4289): (glycerol kinase) The protein encoded by this gene belongs to the FGGY kinase family. This protein is a key enzyme in the regulation of glycerol uptake and metabolism. It catalyzes the phosphorylation of glycerol by ATP, yielding ADP and glycerol-3-phosphate. Mutations in this gene are associated with glycerol kinase deficiency (GKD). Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2011]

GK links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.62).

BP6

Variant X-30653624-G-A is Benign according to our data. Variant chrX-30653624-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 730465.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High Hemizygotes in GnomAd4 at 5 XL geneVariant has number of hemizygotes lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GK	NM_001205019.2 link	c.78+9G>A		intron_variant	Intron 1 of 20	ENST00000427190.6	NP_001191948.1	P32189-3B4DH54

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GK	ENST00000427190.6 link	c.78+9G>A		intron_variant	Intron 1 of 20	5	NM_001205019.2	ENSP00000401720.2		P32189-3

Frequencies

GnomAD3 genomes

AF:

0.000107

AC:

AN:

112335

Hom.:

Cov.:

AF XY:

0.000145

AC XY:

AN XY:

34497

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:

0.000281

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000325

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000169

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000104

AC:

AN:

182782

Hom.:

AF XY:

0.0000888

AC XY:

AN XY:

67604

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000365

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000188

Gnomad NFE exome

AF:

0.000184

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000147

AC:

159

AN:

1081784

Hom.:

Cov.:

AF XY:

0.000149

AC XY:

AN XY:

348096

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.000148

Gnomad4 NFE exome

AF:

0.000172

Gnomad4 OTH exome

AF:

0.000241

GnomAD4 genome

AF:

0.000107

AC:

AN:

112335

Hom.:

Cov.:

AF XY:

0.000145

AC XY:

AN XY:

34497

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000281

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000325

Gnomad4 NFE

AF:

0.000169

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000869

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

GK-related disorder

Benign:1

Mar 02, 2019

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This 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). -

not provided

Benign:1

Feb 07, 2018

Labcorp Genetics (formerly Invitae), Labcorp

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

-0.62

CADD

Benign

7.8

DANN

Benign

0.92

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

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.

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