rs773129173

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 1P and 3B. PP2BP4_ModerateBS1_Supporting

The NM_000875.5(IGF1R):c.4096A>C(p.Thr1366Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000247 in 1,612,812 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. T1366T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00026 ( 0 hom. )

Consequence

IGF1R
NM_000875.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 7.66

Variant links:

Genes affected

IGF1R (HGNC:5465): (insulin like growth factor 1 receptor) This receptor binds insulin-like growth factor with a high affinity. It has tyrosine kinase activity. The insulin-like growth factor I receptor plays a critical role in transformation events. Cleavage of the precursor generates alpha and beta subunits. It is highly overexpressed in most malignant tissues where it functions as an anti-apoptotic agent by enhancing cell survival. Alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, May 2014]

IGF1R links:

SYNM-AS1 (HGNC:55421): (SYNM antisense RNA 1)

SYNM-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PP2

Missense variant where missense usually causes diseases, IGF1R

BP4

Computational evidence support a benign effect (MetaRNN=0.20493296).

BS1

Variant frequency is greater than expected in population nfe. gnomad4_exome allele frequency = 0.000264 (385/1460642) while in subpopulation NFE AF= 0.000338 (376/1112006). AF 95% confidence interval is 0.00031. There are 0 homozygotes in gnomad4_exome. There are 179 alleles in male gnomad4_exome subpopulation. Median coverage is 33. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
IGF1R	NM_000875.5 linkuse as main transcript	c.4096A>C	p.Thr1366Pro	missense_variant	21/21	ENST00000650285.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
IGF1R	ENST00000650285.1 linkuse as main transcript	c.4096A>C	p.Thr1366Pro	missense_variant	21/21		NM_000875.5	P4
SYNM-AS1	ENST00000559468.1 linkuse as main transcript	n.349-3046T>G		intron_variant, non_coding_transcript_variant		4
IGF1R	ENST00000649865.1 linkuse as main transcript	c.4093A>C	p.Thr1365Pro	missense_variant	21/21			A1

Frequencies

GnomAD3 genomes

AF:

0.0000920

AC:

AN:

152170

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000176

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000566

AC:

AN:

247446

Hom.:

AF XY:

0.0000519

AC XY:

AN XY:

134804

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.000117

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000264

AC:

385

AN:

1460642

Hom.:

Cov.:

AF XY:

0.000246

AC XY:

179

AN XY:

726620

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

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:

0.000338

Gnomad4 OTH exome

AF:

0.000116

GnomAD4 genome

AF:

0.0000920

AC:

AN:

152170

Hom.:

Cov.:

AF XY:

0.0000673

AC XY:

AN XY:

74346

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.000176

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000174

Hom.:

Bravo

AF:

0.0000793

ExAC

AF:

0.0000661

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000237

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Invitae	Nov 16, 2022	In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). ClinVar contains an entry for this variant (Variation ID: 287568). This variant has not been reported in the literature in individuals affected with IGF1R-related conditions. This variant is present in population databases (rs773129173, gnomAD 0.01%). This sequence change replaces threonine, which is neutral and polar, with proline, which is neutral and non-polar, at codon 1366 of the IGF1R protein (p.Thr1366Pro). -
Uncertain significance, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	May 09, 2016	- -

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 18, 2016

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.081

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Benign

-0.19

Cadd

Benign

Dann

Uncertain

0.99

DEOGEN2

Benign

0.35

T;.;T;.

Eigen

Benign

-0.14

Eigen_PC

Benign

0.11

FATHMM_MKL

Uncertain

0.96

M_CAP

Benign

0.055

MetaRNN

Benign

0.20

T;T;T;T

MetaSVM

Benign

-0.94

MutationAssessor

Benign

-0.46

N;.;N;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Benign

0.43

Polyphen

0.17

B;B;B;B

Vest4

0.16, 0.13

MVP

0.71

MPC

0.11

ClinPred

0.18

GERP RS

4.5

Varity_R

0.083

gMVP

0.38

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