NM_000875.5:c.43G>A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4BS1_Supporting

The NM_000875.5(IGF1R):​c.43G>A​(p.Gly15Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000621 in 1,609,894 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G15W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

IGF1R
NM_000875.5 missense

Scores

2
8
8

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 4.05

Publications

0 publications found
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]
IRAIN (HGNC:50365): (IGF1R antisense imprinted non-protein coding RNA) This gene expresses a long non-coding RNA in antisense to the insulin-like growth factor type I receptor (IGF1R) gene. This transcript is imprinted and expressed from the paternal allele. It interacts with chromatin and may promote long-range DNA interactions that influence the regulation of gene expression. [provided by RefSeq, Nov 2015]

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.32202286).
BS1
Variant frequency is greater than expected in population eas. GnomAdExome4 allele frequency = 0.00000617 (9/1458620) while in subpopulation EAS AF = 0.000202 (8/39532). AF 95% confidence interval is 0.000101. There are 0 homozygotes in GnomAdExome4. There are 3 alleles in the male GnomAdExome4 subpopulation. Median coverage is 31. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000875.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IGF1R
NM_000875.5
MANE Select
c.43G>Ap.Gly15Arg
missense
Exon 1 of 21NP_000866.1P08069
IGF1R
NM_001291858.2
c.43G>Ap.Gly15Arg
missense
Exon 1 of 21NP_001278787.1C9J5X1
IRAIN
NR_126453.2
n.1164C>T
non_coding_transcript_exon
Exon 1 of 1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IGF1R
ENST00000650285.1
MANE Select
c.43G>Ap.Gly15Arg
missense
Exon 1 of 21ENSP00000497069.1P08069
IGF1R
ENST00000559925.5
TSL:1
n.43G>A
non_coding_transcript_exon
Exon 1 of 10
IGF1R
ENST00000649865.1
c.43G>Ap.Gly15Arg
missense
Exon 1 of 21ENSP00000496919.1C9J5X1

Frequencies

GnomAD3 genomes
AF:
0.00000661
AC:
1
AN:
151274
Hom.:
0
Cov.:
33
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:
0.000195
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000162
AC:
4
AN:
247342
AF XY:
0.0000149
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000220
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000617
AC:
9
AN:
1458620
Hom.:
0
Cov.:
31
AF XY:
0.00000413
AC XY:
3
AN XY:
725642
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33298
American (AMR)
AF:
0.00
AC:
0
AN:
44310
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26080
East Asian (EAS)
AF:
0.000202
AC:
8
AN:
39532
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85806
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5752
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1110952
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60266
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.497
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000661
AC:
1
AN:
151274
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
73794
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41166
American (AMR)
AF:
0.00
AC:
0
AN:
15236
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.000195
AC:
1
AN:
5132
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4816
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10270
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67882
Other (OTH)
AF:
0.00
AC:
0
AN:
2080
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.0000165
AC:
2

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Growth delay due to insulin-like growth factor I resistance (1)
-
1
-
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.70
BayesDel_addAF
Benign
-0.088
T
BayesDel_noAF
Uncertain
-0.070
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.50
D
Eigen
Benign
0.18
Eigen_PC
Benign
0.20
FATHMM_MKL
Benign
0.70
D
LIST_S2
Benign
0.81
T
M_CAP
Pathogenic
0.42
D
MetaRNN
Benign
0.32
T
MetaSVM
Uncertain
-0.12
T
MutationAssessor
Benign
1.0
L
PhyloP100
4.0
PrimateAI
Uncertain
0.77
T
PROVEAN
Benign
-1.3
N
REVEL
Uncertain
0.48
Sift
Uncertain
0.011
D
Sift4G
Uncertain
0.039
D
Polyphen
0.10
B
Vest4
0.38
MutPred
0.56
Gain of helix (P = 0.027)
MVP
0.82
MPC
1.6
ClinPred
0.60
D
GERP RS
3.7
Varity_R
0.31
gMVP
0.73
Mutation Taster
=64/36
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

Publications

Other links and lift over

dbSNP: rs770977775; hg19: chr15-99192853; API