Genetic Variant IDNK:p.Gly140Arg (chr9-83643634-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 3P and 1B. PM2PP3BP4

The NM_001001551.4(IDNK):c.418G>A(p.Gly140Arg) variant causes a missense change. The variant allele was found at a frequency of 0.0000041 in 1,461,884 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 Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

IDNK
NM_001001551.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.14

Variant links:

Genes affected

IDNK (HGNC:31367): (IDNK gluconokinase) Predicted to enable gluconokinase activity. Predicted to be involved in D-gluconate catabolic process. [provided by Alliance of Genome Resources, Apr 2022]

IDNK links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

Multiple lines of computational evidence support a deleterious effect 6: Cadd, Dann, Eigen, FATHMM_MKL, MutationAssessor, PROVEAN [when max_spliceai, M_CAP, MetaRNN, MutationTaster was below the threshold]

BP4

Computational evidence support a benign effect (MetaRNN=0.4074173).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IDNK	NM_001001551.4 link	c.418G>A	p.Gly140Arg	missense_variant	Exon 5 of 5	ENST00000376419.5	NP_001001551.2	Q5T6J7-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IDNK	ENST00000376419.5 link	c.418G>A	p.Gly140Arg	missense_variant	Exon 5 of 5	1	NM_001001551.4	ENSP00000365601.4		Q5T6J7-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251428

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135888

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.00000410

AC:

AN:

1461884

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727242

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:

0.00

Gnomad4 NFE exome

AF:

0.00000540

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 08, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.418G>A (p.G140R) alteration is located in exon 5 (coding exon 5) of the IDNK gene. This alteration results from a G to A substitution at nucleotide position 418, causing the glycine (G) at amino acid position 140 to be replaced by an arginine (R). 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

Uncertain

0.42

BayesDel_addAF

Uncertain

0.11

BayesDel_noAF

Uncertain

-0.080

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.11

.;T

Eigen

Pathogenic

0.82

Eigen_PC

Pathogenic

0.77

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.97

D;D

M_CAP

Benign

0.013

MetaRNN

Benign

0.41

T;T

MetaSVM

Benign

-0.36

MutationAssessor

Pathogenic

3.6

.;H

PrimateAI

Uncertain

0.64

PROVEAN

Pathogenic

-6.1

.;D

REVEL

Uncertain

0.35

Sift

Uncertain

0.0040

.;D

Sift4G

Uncertain

0.0030

D;D

Polyphen

0.92

.;P

Vest4

0.67

MutPred

0.52

.;Gain of solvent accessibility (P = 0.0097);

MVP

0.46

MPC

0.79

ClinPred

1.0

GERP RS

5.2

Varity_R

0.61

gMVP

0.67

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