Genetic Variant NM_000154.2:c.1089C>T (chr17-75758228-G-A) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The NM_000154.2(GALK1):c.1089C>T(p.His363His) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000206 in 1,604,744 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

GALK1
NM_000154.2 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.90

Publications

1 publications found

Variant links:

Genes affected

GALK1 (HGNC:4118): (galactokinase 1) Galactokinase is a major enzyme for the metabolism of galactose and its deficiency causes congenital cataracts during infancy and presenile cataracts in the adult population. [provided by RefSeq, Jul 2008]

GALK1 Gene-Disease associations (from GenCC):

galactokinase deficiency
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Myriad Women’s Health, Labcorp Genetics (formerly Invitae), G2P, Orphanet, ClinGen

GALK1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.86).

BP6

Variant 17-75758228-G-A is Benign according to our data. Variant chr17-75758228-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 459628.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=-1.89 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GALK1	NM_000154.2 link	c.1089C>T	p.His363His	synonymous_variant	Exon 7 of 8	ENST00000588479.6	NP_000145.1	P51570V9HWE7
GALK1	NM_001381985.1 link	c.1089C>T	p.His363His	synonymous_variant	Exon 7 of 9		NP_001368914.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GALK1	ENST00000588479.6 link	c.1089C>T	p.His363His	synonymous_variant	Exon 7 of 8	1	NM_000154.2	ENSP00000465930.1		P51570

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152230

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000619

AC:

AN:

226136

AF XY:

0.0000647

show subpopulations

Gnomad AFR exome

AF:

0.0000732

Gnomad AMR exome

AF:

0.000123

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000117

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000100

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000200

AC:

AN:

1452396

Hom.:

Cov.:

AF XY:

0.0000222

AC XY:

AN XY:

721940

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33394

American (AMR)

AF:

0.0000924

AC:

AN:

43296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25844

East Asian (EAS)

AF:

0.000127

AC:

AN:

39398

South Asian (SAS)

AF:

0.0000821

AC:

AN:

85236

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50808

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.00000902

AC:

AN:

1108654

Other (OTH)

AF:

0.0000500

AC:

AN:

60004

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.501

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152348

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74498

show subpopulations

African (AFR)

AF:

0.0000721

AC:

AN:

41586

American (AMR)

AF:

0.0000653

AC:

AN:

15310

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.588

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

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:

0.00

Hom.:

Bravo

AF:

0.0000189

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Deficiency of galactokinase

Benign:1

Oct 26, 2024

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

-0.86

CADD

Benign

0.073

(source)

DANN

Benign

0.91

PhyloP100

-1.9

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

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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