15-98891348-C-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP4_ModerateBS1

The NM_000875.5(IGF1R):​c.664C>T​(p.Arg222Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000023 in 1,606,924 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

IGF1R
NM_000875.5 missense

Scores

4
8
7

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.67
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), IGF1R. . Trascript score misZ 4.6449 (greater than threshold 3.09). GenCC has associacion of gene with growth delay due to insulin-like growth factor I resistance.
BP4
Computational evidence support a benign effect (MetaRNN=0.2266525).
BS1
Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.0000263 (4/151994) while in subpopulation EAS AF= 0.000775 (4/5164). AF 95% confidence interval is 0.000264. There are 0 homozygotes in gnomad4. There are 3 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
IGF1RNM_000875.5 linkuse as main transcriptc.664C>T p.Arg222Trp missense_variant 3/21 ENST00000650285.1 NP_000866.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
IGF1RENST00000650285.1 linkuse as main transcriptc.664C>T p.Arg222Trp missense_variant 3/21 NM_000875.5 ENSP00000497069 P4
ENST00000558736.1 linkuse as main transcriptn.69+2119G>A intron_variant, non_coding_transcript_variant 2

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
151994
Hom.:
0
Cov.:
32
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:
0.000775
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
GnomAD3 exomes
AF:
0.000110
AC:
27
AN:
246152
Hom.:
0
AF XY:
0.000127
AC XY:
17
AN XY:
133406
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00142
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000227
AC:
33
AN:
1454930
Hom.:
0
Cov.:
33
AF XY:
0.0000276
AC XY:
20
AN XY:
723916
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000504
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000108
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
151994
Hom.:
0
Cov.:
32
AF XY:
0.0000404
AC XY:
3
AN XY:
74244
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000775
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000680
ExAC
AF:
0.000107
AC:
13
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Benign
-0.077
T
BayesDel_noAF
Uncertain
0.080
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.79
D;.;D;.;D
Eigen
Benign
-0.035
Eigen_PC
Benign
-0.12
FATHMM_MKL
Uncertain
0.83
D
LIST_S2
Uncertain
0.96
.;.;D;D;D
M_CAP
Pathogenic
0.40
D
MetaRNN
Benign
0.23
T;T;T;T;T
MetaSVM
Pathogenic
0.95
D
MutationAssessor
Pathogenic
3.2
M;.;M;.;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.54
T
PROVEAN
Uncertain
-2.9
.;.;D;D;D
REVEL
Pathogenic
0.76
Sift
Benign
0.064
.;.;T;T;T
Sift4G
Uncertain
0.026
.;.;D;D;D
Polyphen
0.99
D;D;D;D;.
Vest4
0.74, 0.71
MutPred
0.67
Loss of disorder (P = 0.0187);Loss of disorder (P = 0.0187);Loss of disorder (P = 0.0187);Loss of disorder (P = 0.0187);.;
MVP
0.87
MPC
1.4
ClinPred
0.35
T
GERP RS
4.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.35
gMVP
0.79

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: rs70958401; hg19: chr15-99434577; COSMIC: COSV105863654; API