chr15-98930282-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2PP2PP3_Moderate

The NM_000875.5(IGF1R):​c.2933C>T​(p.Pro978Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,648 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. P978P) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

IGF1R
NM_000875.5 missense

Scores

17
1
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.91
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 Uncertain_significance. Variant got 5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
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.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.897

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IGF1RNM_000875.5 linkuse as main transcriptc.2933C>T p.Pro978Leu missense_variant 15/21 ENST00000650285.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IGF1RENST00000650285.1 linkuse as main transcriptc.2933C>T p.Pro978Leu missense_variant 15/21 NM_000875.5 P4
IGF1RENST00000560972.1 linkuse as main transcriptn.236C>T non_coding_transcript_exon_variant 3/41
IGF1RENST00000649865.1 linkuse as main transcriptc.2930C>T p.Pro977Leu missense_variant 15/21 A1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1460648
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
726542
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.00000756

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJun 05, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.99
BayesDel_addAF
Pathogenic
0.48
D
BayesDel_noAF
Pathogenic
0.46
CADD
Pathogenic
28
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.90
D;.;D;.
Eigen
Pathogenic
0.98
Eigen_PC
Pathogenic
0.92
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Pathogenic
1.0
.;.;D;D
M_CAP
Pathogenic
0.32
D
MetaRNN
Pathogenic
0.90
D;D;D;D
MetaSVM
Pathogenic
0.96
D
MutationAssessor
Pathogenic
3.1
M;.;M;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.85
D
PROVEAN
Pathogenic
-9.8
.;.;D;D
REVEL
Pathogenic
0.81
Sift
Pathogenic
0.0
.;.;D;D
Sift4G
Uncertain
0.0070
.;.;D;D
Polyphen
1.0
D;D;D;D
Vest4
0.76, 0.75
MutPred
0.56
Loss of phosphorylation at Y973 (P = 0.0892);.;Loss of phosphorylation at Y973 (P = 0.0892);.;
MVP
0.95
MPC
1.6
ClinPred
1.0
D
GERP RS
5.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.87
gMVP
0.95

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: rs1555463013; hg19: chr15-99473511; COSMIC: COSV99158638; API