Variant chr18-24437964-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_018439.4(IMPACT):c.291C>G(p.Ile97Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000261 in 1,530,790 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000022 ( 0 hom. )

Consequence

IMPACT
NM_018439.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.07

Variant links:

Genes affected

IMPACT (HGNC:20387): (impact RWD domain protein) Predicted to enable actin binding activity and ribosome binding activity. Predicted to be involved in several processes, including GCN2-mediated signaling; cellular response to starvation; and negative regulation of nitrogen compound metabolic process. Predicted to be located in cytoplasm. Predicted to be part of polysome. [provided by Alliance of Genome Resources, Apr 2022]

IMPACT links:

(HGNC:):

links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.16183367).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
IMPACT	NM_018439.4 linkuse as main transcript	c.291C>G	p.Ile97Met	missense_variant	5/11	ENST00000284202.9	NP_060909.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
IMPACT	ENST00000284202.9 linkuse as main transcript	c.291C>G	p.Ile97Met	missense_variant	5/11	1	NM_018439.4	ENSP00000284202	P1	Q9P2X3-1
	ENST00000579049.1 linkuse as main transcript	n.184-1577C>G		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes

AF:

0.00000659

AC:

AN:

151750

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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

GnomAD3 exomes

AF:

0.00000448

AC:

AN:

223110

Hom.:

AF XY:

0.00

AC XY:

AN XY:

121570

show subpopulations

Gnomad AFR exome

AF:

0.0000666

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:

0.00

GnomAD4 exome

AF:

0.00000218

AC:

AN:

1379040

Hom.:

Cov.:

AF XY:

0.00000145

AC XY:

AN XY:

689452

show subpopulations

Gnomad4 AFR exome

AF:

0.0000979

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000659

AC:

AN:

151750

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74090

show subpopulations

Gnomad4 AFR

AF:

0.0000242

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 20, 2021

The c.291C>G (p.I97M) alteration is located in exon 5 (coding exon 5) of the IMPACT gene. This alteration results from a C to G substitution at nucleotide position 291, causing the isoleucine (I) at amino acid position 97 to be replaced by a methionine (M). 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

0.083

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.56

CADD

Benign

DANN

Benign

0.72

DEOGEN2

Benign

0.011

T;.;T;T

Eigen

Benign

-0.75

Eigen_PC

Benign

-0.61

FATHMM_MKL

Benign

0.50

LIST_S2

Benign

0.82

T;T;T;T

M_CAP

Benign

0.0081

MetaRNN

Benign

0.16

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.97

L;.;.;.

MutationTaster

Benign

0.76

PrimateAI

Uncertain

0.52

PROVEAN

Benign

-0.43

N;.;.;.

REVEL

Benign

0.035

Sift

Benign

0.30

T;.;.;.

Sift4G

Benign

0.27

T;.;T;T

Polyphen

0.22

B;.;.;.

Vest4

0.19

MutPred

0.63

Loss of helix (P = 0.0626);Loss of helix (P = 0.0626);.;Loss of helix (P = 0.0626);

MVP

0.099

MPC

0.085

ClinPred

0.035

GERP RS

0.082

Varity_R

0.034

gMVP

0.23

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