rs1877725074

Variant names:

• chr13-109782234-G-T
• rs1877725074
• NM_003749.3:c.3820C>A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_003749.3(IRS2):​c.3820C>A​(p.Pro1274Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000138 in 1,454,304 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: IRS2 NM_003749.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.65
• Publications: 0 publications found

Genes affected

IRS2 (HGNC:6126): (insulin receptor substrate 2) This gene encodes the insulin receptor substrate 2, a cytoplasmic signaling molecule that mediates effects of insulin, insulin-like growth factor 1, and other cytokines by acting as a molecular adaptor between diverse receptor tyrosine kinases and downstream effectors. The product of this gene is phosphorylated by the insulin receptor tyrosine kinase upon receptor stimulation, as well as by an interleukin 4 receptor-associated kinase in response to IL4 treatment. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.100050926).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003749.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	IRS2	NM_003749.3	MANE Select	c.3820C>A	p.Pro1274Thr	missense	Exon 1 of 2	NP_003740.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	IRS2	ENST00000375856.5	TSL:1 MANE Select	c.3820C>A	p.Pro1274Thr	missense	Exon 1 of 2	ENSP00000365016.3	Q9Y4H2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000138 AC: 2 AN: 1454304 Hom.: 0 Cov.: 33 AF XY: 0.00000138 AC XY: 1 AN XY: 723072

African (AFR) AF: 0.00 AC: 0 AN: 33370

American (AMR) AF: 0.00 AC: 0 AN: 44264

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25992

East Asian (EAS) AF: 0.00 AC: 0 AN: 39524

South Asian (SAS) AF: 0.00 AC: 0 AN: 85754

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 50786

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5712

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1108958

Other (OTH) AF: 0.00 AC: 0 AN: 59944

GnomAD4 genome Cov.: 33

Alfa AF: 0.0000936 Hom.: 0

Bravo AF: 0.00000756

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.066
BayesDel_addAF	Benign	-0.21	T
BayesDel_noAF	Benign	-0.54
CADD	Benign	13
DANN	Benign	0.22
DEOGEN2	Benign	0.33	T
Eigen	Benign	-1.1
Eigen_PC	Benign	-1.2
FATHMM_MKL	Benign	0.39	N
LIST_S2	Benign	0.35	T
M_CAP	Benign	0.018	T
MetaRNN	Benign	0.10	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.0	N
PhyloP100		3.6
PrimateAI	Uncertain	0.55	T
PROVEAN	Benign	-0.30	N
REVEL	Benign	0.10
Sift	Benign	0.30	T
Sift4G	Benign	0.69	T
Polyphen		0.069	B
Vest4		0.20
MutPred		0.34		Gain of phosphorylation at P1274 (P = 0.0082)
MVP		0.43
ClinPred		0.29	T
GERP RS		0.56
Varity_R		0.039
gMVP		0.42
Mutation Taster		=93/7	polymorphism

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

Other links and lift over

dbSNP: rs1877725074; hg19: chr13-110434581;