chr2-226795104-C-T

Variant summary

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

The NM_005544.3(IRS1):​c.3635G>A​(p.Gly1212Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000146 in 1,369,536 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 25)
Exomes 𝑓: 0.0000015 ( 0 hom. )

Consequence

IRS1
NM_005544.3 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.58
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]

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=0.25723994).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
IRS1NM_005544.3 linkuse as main transcriptc.3635G>A p.Gly1212Asp missense_variant 1/2 ENST00000305123.6 NP_005535.1
IRS1XM_047444223.1 linkuse as main transcriptc.3635G>A p.Gly1212Asp missense_variant 1/2 XP_047300179.1
IRS1XM_047444224.1 linkuse as main transcriptc.3635G>A p.Gly1212Asp missense_variant 1/2 XP_047300180.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
IRS1ENST00000305123.6 linkuse as main transcriptc.3635G>A p.Gly1212Asp missense_variant 1/21 NM_005544.3 ENSP00000304895 P1
IRS1ENST00000498335.1 linkuse as main transcriptn.143G>A non_coding_transcript_exon_variant 1/23

Frequencies

GnomAD3 genomes
Cov.:
25
GnomAD3 exomes
AF:
0.00000814
AC:
2
AN:
245822
Hom.:
0
AF XY:
0.00000744
AC XY:
1
AN XY:
134346
show subpopulations
Gnomad AFR exome
AF:
0.000131
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:
0.00000146
AC:
2
AN:
1369536
Hom.:
0
Cov.:
44
AF XY:
0.00000146
AC XY:
1
AN XY:
684208
show subpopulations
Gnomad4 AFR exome
AF:
0.0000632
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
Cov.:
25

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

IRS1-related disorder Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesMar 01, 2023The IRS1 c.3635G>A variant is predicted to result in the amino acid substitution p.Gly1212Asp. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.013% of alleles in individuals of African descent in gnomAD (http://gnomad.broadinstitute.org/variant/2-227659820-C-T). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.33
CADD
Benign
21
DANN
Benign
0.97
DEOGEN2
Uncertain
0.57
D
Eigen
Benign
-0.29
Eigen_PC
Benign
-0.19
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Benign
0.64
T
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.26
T
MetaSVM
Benign
-0.98
T
MutationAssessor
Benign
1.8
L
MutationTaster
Benign
0.97
N
PrimateAI
Uncertain
0.51
T
PROVEAN
Benign
-1.9
N
REVEL
Benign
0.13
Sift
Uncertain
0.0030
D
Sift4G
Benign
0.098
T
Polyphen
0.025
B
Vest4
0.44
MutPred
0.37
Gain of relative solvent accessibility (P = 0.0479);
MVP
0.70
MPC
0.59
ClinPred
0.079
T
GERP RS
3.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.14
gMVP
0.41

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.

Other links and lift over

dbSNP: rs973649983; hg19: chr2-227659820; API