dbSNP rs1555463013: IGF1R:p.Pro978Gln (chr15-98930282-C-A) – ACMG Classification: Uncertain_significance (5 pts)

Variant summary

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

The NM_000875.5(IGF1R):c.2933C>A(p.Pro978Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,648 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

IGF1R
NM_000875.5 missense

Scores

Clinical Significance

Not reported in ClinVar

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]

IGF1R links:

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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 the IGF1R gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 12 curated pathogenic missense variants (we use a threshold of 10). The gene has 19 curated benign missense variants. Trascript score misZ: 4.6449 (above the threshold of 3.09). GenCC associations: The gene is linked to growth delay due to insulin-like growth factor I resistance.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.899

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IGF1R	NM_000875.5 link	c.2933C>A	p.Pro978Gln	missense_variant	Exon 15 of 21	ENST00000650285.1	NP_000866.1	P08069

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
IGF1R	ENST00000650285.1 link	c.2933C>A	p.Pro978Gln	missense_variant	Exon 15 of 21		NM_000875.5	ENSP00000497069.1	P08069
IGF1R	ENST00000560972.1 link	n.236C>A		non_coding_transcript_exon_variant	Exon 3 of 4	1
IGF1R	ENST00000649865.1 link	c.2930C>A	p.Pro977Gln	missense_variant	Exon 15 of 21			ENSP00000496919.1	C9J5X1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460648

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

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:

9.00e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

1.0

BayesDel_addAF

Pathogenic

0.42

BayesDel_noAF

Pathogenic

0.36

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Pathogenic

0.89

D;.;D;.

Eigen

Pathogenic

0.99

Eigen_PC

Pathogenic

0.92

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Pathogenic

0.99

.;.;D;D

M_CAP

Pathogenic

0.46

MetaRNN

Pathogenic

0.90

D;D;D;D

MetaSVM

Pathogenic

0.96

MutationAssessor

Pathogenic

3.1

M;.;M;.

PrimateAI

Pathogenic

0.81

PROVEAN

Pathogenic

-7.8

.;.;D;D

REVEL

Pathogenic

0.84

Sift

Pathogenic

0.0

.;.;D;D

Sift4G

Uncertain

0.0020

.;.;D;D

Polyphen

1.0

D;D;D;D

Vest4

0.74, 0.69

MutPred

0.56

Gain of catalytic residue at P978 (P = 0.0907);.;Gain of catalytic residue at P978 (P = 0.0907);.;

MVP

0.92

MPC

1.6

ClinPred

1.0

GERP RS

5.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.87

gMVP

0.92

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over