Genetic Variant GASK1A:p.Gln36Glu (chr3-43032369-C-G) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001129908.3(GASK1A):c.106C>G(p.Gln36Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000715 in 1,399,298 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 7.1e-7 ( 0 hom. )

Consequence

GASK1A
NM_001129908.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.746

Publications

0 publications found

Variant links:

Genes affected

GASK1A (HGNC:24485): (golgi associated kinase 1A) Located in intracellular membrane-bounded organelle. [provided by Alliance of Genome Resources, Apr 2022]

GASK1A links:

ENSG00000273291 (HGNC:):

ENSG00000273291 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.05165097).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GASK1A	NM_001129908.3 link	c.106C>G	p.Gln36Glu	missense_variant	Exon 2 of 5	ENST00000430121.3	NP_001123380.2	Q9UFP1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GASK1A	ENST00000430121.3 link	c.106C>G	p.Gln36Glu	missense_variant	Exon 2 of 5	5	NM_001129908.3	ENSP00000407301.2		Q9UFP1
ENSG00000273291	ENST00000446977.2 link	c.*77C>G		downstream_gene_variant		4		ENSP00000477043.1		V9GYS6

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000639

AC:

AN:

156492

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000917

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

7.15e-7

AC:

AN:

1399298

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

690146

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

31598

American (AMR)

AF:

0.00

AC:

AN:

35694

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25180

East Asian (EAS)

AF:

0.0000280

AC:

AN:

35736

South Asian (SAS)

AF:

0.00

AC:

AN:

79212

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49276

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5698

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1078902

Other (OTH)

AF:

0.00

AC:

AN:

58002

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

May 19, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.106C>G (p.Q36E) alteration is located in exon 2 (coding exon 2) of the FAM198A gene. This alteration results from a C to G substitution at nucleotide position 106, causing the glutamine (Q) at amino acid position 36 to be replaced by a glutamic acid (E). 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

0.066

BayesDel_addAF

Benign

-0.43

BayesDel_noAF

Benign

-0.66

CADD

Benign

2.2

(source)

DANN

Benign

0.65

Eigen

Benign

-0.81

Eigen_PC

Benign

-0.81

FATHMM_MKL

Benign

0.044

LIST_S2

Benign

0.58

M_CAP

Benign

0.0039

MetaRNN

Benign

0.052

MetaSVM

Benign

-1.0

PhyloP100

0.75

PrimateAI

Benign

0.28

PROVEAN

Benign

-0.89

REVEL

Benign

0.017

Sift

Benign

1.0

Sift4G

Benign

0.35

Vest4

0.060

MutPred

0.11

Loss of glycosylation at P34 (P = 0.0076);

MVP

0.014

ClinPred

0.024

GERP RS

2.9

gMVP

0.083

Mutation Taster

=95/5

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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3-43032369-C-G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over