dbSNP rs1262166840: IRS4:p.Ile1017Thr (chrX-108733295-A-G) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_001379150.1(IRS4):c.3050T>C(p.Ile1017Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000579 in 1,209,968 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 3 hemizygotes in GnomAD. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 1 hem., cov: 23)

Exomes 𝑓: 0.0000055 ( 0 hom. 2 hem. )

Consequence

IRS4
NM_001379150.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.91

Variant links:

Genes affected

IRS4 (HGNC:6128): (insulin receptor substrate 4) IRS4 encodes the insulin receptor substrate 4, a cytoplasmic protein that contains many potential tyrosine and serine/threonine phosphorylation sites. Tyrosine-phosphorylated IRS4 protein has been shown to associate with cytoplasmic signalling molecules that contain SH2 domains. The IRS4 protein is phosphorylated by the insulin receptor tyrosine kinase upon receptor stimulation.. [provided by RefSeq, Jul 2008]

IRS4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High Hemizygotes in GnomAdExome4 at 2 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IRS4	NM_001379150.1 link	c.3050T>C	p.Ile1017Thr	missense_variant	Exon 1 of 2	ENST00000372129.4	NP_001366079.1
IRS4	NM_003604.2 link	c.3050T>C	p.Ile1017Thr	missense_variant	Exon 1 of 1		NP_003595.1	O14654
IRS4	XM_011531061.2 link	c.3050T>C	p.Ile1017Thr	missense_variant	Exon 1 of 3		XP_011529363.1
IRS4	XM_006724713.4 link	c.3050T>C	p.Ile1017Thr	missense_variant	Exon 1 of 2		XP_006724776.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IRS4	ENST00000372129.4 link	c.3050T>C	p.Ile1017Thr	missense_variant	Exon 1 of 2	6	NM_001379150.1	ENSP00000361202.3		A0A804CF45
IRS4	ENST00000564206.2 link	c.3050T>C	p.Ile1017Thr	missense_variant	Exon 1 of 1	6		ENSP00000505547.1		O14654

Frequencies

GnomAD3 genomes

AF:

0.00000894

AC:

AN:

111809

Hom.:

Cov.:

AF XY:

0.0000294

AC XY:

AN XY:

33991

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000188

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000545

AC:

AN:

183491

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

67919

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000365

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:

0.00000546

AC:

AN:

1098159

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

363513

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000284

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000331

Gnomad4 SAS exome

AF:

0.0000185

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000356

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000894

AC:

AN:

111809

Hom.:

Cov.:

AF XY:

0.0000294

AC XY:

AN XY:

33991

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000188

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000189

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 16, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.3050T>C (p.I1017T) alteration is located in exon 1 (coding exon 1) of the IRS4 gene. This alteration results from a T to C substitution at nucleotide position 3050, causing the isoleucine (I) at amino acid position 1017 to be replaced by a threonine (T). 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

0.24

BayesDel_addAF

Benign

-0.074

BayesDel_noAF

Benign

-0.23

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.21

FATHMM_MKL

Benign

0.62

LIST_S2

Benign

0.56

M_CAP

Benign

0.0072

MetaRNN

Uncertain

0.66

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.0

PrimateAI

Benign

0.45

PROVEAN

Benign

1.3

REVEL

Benign

0.22

Sift

Benign

0.45

Sift4G

Benign

0.36

Polyphen

0.15

Vest4

0.65

MutPred

0.68

Loss of stability (P = 0.0222);

MVP

0.89

MPC

0.63

ClinPred

0.87

GERP RS

4.2

Varity_R

0.094

gMVP

0.42

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