Genetic Variant NM_001129908.3:c.203G>A (chr3-43032466-G-A) – 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.203G>A(p.Arg68Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000213 in 1,550,938 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R68W) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

GASK1A
NM_001129908.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.125

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:

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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=0.028288722).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GASK1A	NM_001129908.3 link	c.203G>A	p.Arg68Gln	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.203G>A	p.Arg68Gln	missense_variant	Exon 2 of 5	5	NM_001129908.3	ENSP00000407301.2		Q9UFP1
ENSG00000273291	ENST00000446977.2 link	c.*174G>A		downstream_gene_variant		4		ENSP00000477043.1		V9GYS6

Frequencies

GnomAD3 genomes

AF:

0.0000789

AC:

AN:

152170

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000193

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000638

AC:

AN:

156692

AF XY:

0.0000121

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000165

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000150

AC:

AN:

1398768

Hom.:

Cov.:

AF XY:

0.0000232

AC XY:

AN XY:

689776

show subpopulations

African (AFR)

AF:

0.000190

AC:

AN:

31596

American (AMR)

AF:

0.00

AC:

AN:

35688

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25178

East Asian (EAS)

AF:

0.00

AC:

AN:

35722

South Asian (SAS)

AF:

0.0000126

AC:

AN:

79216

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49270

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5694

European-Non Finnish (NFE)

AF:

0.0000121

AC:

AN:

1078430

Other (OTH)

AF:

0.0000172

AC:

AN:

57974

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000789

AC:

AN:

152170

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74338

show subpopulations

African (AFR)

AF:

0.000193

AC:

AN:

41442

American (AMR)

AF:

0.000131

AC:

AN:

15282

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.508

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000579

Hom.:

Bravo

AF:

0.0000982

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 22, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.203G>A (p.R68Q) alteration is located in exon 2 (coding exon 2) of the FAM198A gene. This alteration results from a G to A substitution at nucleotide position 203, causing the arginine (R) at amino acid position 68 to be replaced by a glutamine (Q). 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

0.067

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.68

CADD

Benign

(source)

DANN

Benign

0.95

Eigen

Benign

-1.0

Eigen_PC

Benign

-0.96

FATHMM_MKL

Benign

0.034

LIST_S2

Benign

0.67

M_CAP

Benign

0.0055

MetaRNN

Benign

0.028

MetaSVM

Benign

-0.97

PhyloP100

-0.13

PrimateAI

Benign

0.19

PROVEAN

Benign

0.090

REVEL

Benign

0.0070

Sift

Benign

0.45

Sift4G

Benign

0.38

Vest4

0.081

MVP

0.014

ClinPred

0.054

GERP RS

-1.3

gMVP

0.088

Mutation Taster

=92/8

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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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NM_001129908.3:c.203G>A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over