Variant chr2-226795417-G-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_005544.3(IRS1):c.3322C>G(p.Pro1108Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000632 in 1,613,538 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 0.00037 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000031 ( 0 hom. )

Consequence

IRS1
NM_005544.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.00

Variant links:

Genes affected

IRS1 (HGNC:6125): (insulin receptor substrate 1) This gene encodes a protein which is phosphorylated by insulin receptor tyrosine kinase. Mutations in this gene are associated with type II diabetes and susceptibility to insulin resistance. [provided by RefSeq, Nov 2009]

IRS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.031004667).

BS2

High AC in GnomAd4 at 56 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
IRS1	NM_005544.3 linkuse as main transcript	c.3322C>G	p.Pro1108Ala	missense_variant	1/2	ENST00000305123.6	NP_005535.1
IRS1	XM_047444223.1 linkuse as main transcript	c.3322C>G	p.Pro1108Ala	missense_variant	1/2		XP_047300179.1
IRS1	XM_047444224.1 linkuse as main transcript	c.3322C>G	p.Pro1108Ala	missense_variant	1/2		XP_047300180.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
IRS1	ENST00000305123.6 linkuse as main transcript	c.3322C>G	p.Pro1108Ala	missense_variant	1/2	1	NM_005544.3	ENSP00000304895	P1

Frequencies

GnomAD3 genomes

AF:

0.000374

AC:

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00133

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:

0.000478

GnomAD3 exomes

AF:

0.0000638

AC:

AN:

250684

Hom.:

AF XY:

0.0000516

AC XY:

AN XY:

135728

show subpopulations

Gnomad AFR exome

AF:

0.000864

Gnomad AMR exome

AF:

0.0000578

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:

0.0000315

AC:

AN:

1461210

Hom.:

Cov.:

AF XY:

0.0000206

AC XY:

AN XY:

726906

show subpopulations

Gnomad4 AFR exome

AF:

0.00119

Gnomad4 AMR exome

AF:

0.0000671

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:

0.0000497

GnomAD4 genome

AF:

0.000368

AC:

AN:

152328

Hom.:

Cov.:

AF XY:

0.000362

AC XY:

AN XY:

74488

show subpopulations

Gnomad4 AFR

AF:

0.00130

Gnomad4 AMR

AF:

0.0000653

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:

0.000473

Alfa

AF:

0.000285

Hom.:

Bravo

AF:

0.000336

ESP6500AA

AF:

0.000908

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000659

AC:

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

Aug 17, 2021

The c.3322C>G (p.P1108A) alteration is located in exon 1 (coding exon 1) of the IRS1 gene. This alteration results from a C to G substitution at nucleotide position 3322, causing the proline (P) at amino acid position 1108 to be replaced by an alanine (A). 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

0.062

BayesDel_addAF

Benign

-0.36

BayesDel_noAF

Benign

-0.34

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.41

Eigen

Benign

-0.48

Eigen_PC

Benign

-0.33

FATHMM_MKL

Benign

0.75

LIST_S2

Benign

0.64

M_CAP

Benign

0.013

MetaRNN

Benign

0.031

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.3

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.49

PROVEAN

Benign

-0.48

REVEL

Benign

0.20

Sift

Benign

0.14

Sift4G

Benign

0.50

Polyphen

0.029

Vest4

0.39

MVP

0.69

MPC

0.26

ClinPred

0.043

GERP RS

5.4

Varity_R

0.076

gMVP

0.20

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