Genetic Variant GINS2:p.Trp47Gly (chr16-85687526-A-C) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_016095.3(GINS2):c.139T>G(p.Trp47Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000144 in 1,597,846 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 34)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

GINS2
NM_016095.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.40

Publications

1 publications found

Variant links:

Genes affected

GINS2 (HGNC:24575): (GINS complex subunit 2) The yeast heterotetrameric GINS complex is made up of Sld5 (GINS4; MIM 610611), Psf1 (GINS1; MIM 610608), Psf2, and Psf3 (GINS3; MIM 610610). The formation of this complex is essential for the initiation of DNA replication in yeast and Xenopus egg extracts (Ueno et al., 2005 [PubMed 16287864]). See GINS1 for additional information about the GINS complex.[supplied by OMIM, Mar 2008]

GINS2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.973

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GINS2	NM_016095.3 link	c.139T>G	p.Trp47Gly	missense_variant	Exon 2 of 5	ENST00000253462.8	NP_057179.1	Q9Y248

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
GINS2	ENST00000253462.8 link	c.139T>G	p.Trp47Gly	missense_variant	Exon 2 of 5	1	NM_016095.3	ENSP00000253462.3	Q9Y248
GINS2	ENST00000595355.5 link	c.-57T>G		5_prime_UTR_variant	Exon 2 of 4	3		ENSP00000470984.1	M0R043
GINS2	ENST00000596233.1 link	c.-57T>G		5_prime_UTR_variant	Exon 2 of 4	3		ENSP00000469346.1	M0QXS3

Frequencies

GnomAD3 genomes

AF:

0.0000328

AC:

AN:

152246

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00115

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000297

AC:

AN:

235330

AF XY:

0.0000234

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000527

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000918

Gnomad OTH exome

AF:

0.000178

GnomAD4 exome

AF:

0.0000125

AC:

AN:

1445600

Hom.:

Cov.:

AF XY:

0.0000139

AC XY:

AN XY:

719222

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32598

American (AMR)

AF:

0.00

AC:

AN:

40676

Ashkenazi Jewish (ASJ)

AF:

0.000546

AC:

AN:

25638

East Asian (EAS)

AF:

0.00

AC:

AN:

38552

South Asian (SAS)

AF:

0.00

AC:

AN:

83672

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53172

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5716

European-Non Finnish (NFE)

AF:

9.04e-7

AC:

AN:

1105966

Other (OTH)

AF:

0.0000503

AC:

AN:

59610

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.461

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:

0.0000328

AC:

AN:

152246

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74386

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41470

American (AMR)

AF:

0.00

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00115

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5200

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68042

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.515

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:

0.000130

Hom.:

Bravo

AF:

0.0000378

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 07, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.139T>G (p.W47G) alteration is located in exon 2 (coding exon 2) of the GINS2 gene. This alteration results from a T to G substitution at nucleotide position 139, causing the tryptophan (W) at amino acid position 47 to be replaced by a glycine (G). 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

Pathogenic

0.98

BayesDel_addAF

Pathogenic

0.44

BayesDel_noAF

Pathogenic

0.40

CADD

Pathogenic

(source)

DANN

Benign

0.93

DEOGEN2

Uncertain

0.66

Eigen

Uncertain

0.53

Eigen_PC

Uncertain

0.42

FATHMM_MKL

Uncertain

0.95

LIST_S2

Benign

0.77

M_CAP

Pathogenic

0.29

MetaRNN

Pathogenic

0.97

MetaSVM

Uncertain

-0.010

MutationAssessor

Pathogenic

2.9

PhyloP100

8.4

PrimateAI

Uncertain

0.74

PROVEAN

Pathogenic

-12

REVEL

Pathogenic

0.65

Sift

Benign

0.032

Sift4G

Pathogenic

0.0

Polyphen

0.92

Vest4

0.96

MutPred

0.88

Loss of stability (P = 0.0526);

MVP

0.58

MPC

0.027

ClinPred

0.99

GERP RS

4.4

PromoterAI

-0.021

Neutral

(source)

Varity_R

0.91

gMVP

0.92

Mutation Taster

=7/93

disease causing

(source)

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