chr15-98649652-C-G

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 1P and 2B. PP2BP4_Moderate

The NM_000875.5(IGF1R):ā€‹c.71C>Gā€‹(p.Ser24Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000123 in 1,458,442 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.000012 ( 0 hom. )

Consequence

IGF1R
NM_000875.5 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.440
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 -1 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=0.22191292).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
IGF1RNM_000875.5 linkuse as main transcriptc.71C>G p.Ser24Trp missense_variant 1/21 ENST00000650285.1 NP_000866.1
IRAINNR_126453.2 linkuse as main transcriptn.1136G>C non_coding_transcript_exon_variant 1/1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
IGF1RENST00000650285.1 linkuse as main transcriptc.71C>G p.Ser24Trp missense_variant 1/21 NM_000875.5 ENSP00000497069 P4
IGF1RENST00000559925.5 linkuse as main transcriptn.71C>G non_coding_transcript_exon_variant 1/101
IGF1RENST00000649865.1 linkuse as main transcriptc.71C>G p.Ser24Trp missense_variant 1/21 ENSP00000496919 A1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000405
AC:
1
AN:
246874
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
134028
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:
0.00000892
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000123
AC:
18
AN:
1458442
Hom.:
0
Cov.:
31
AF XY:
0.0000138
AC XY:
10
AN XY:
725554
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:
0.0000162
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000602
Hom.:
0
Bravo
AF:
0.0000113

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 GeneticsOct 26, 2022The c.71C>G (p.S24W) alteration is located in exon 1 (coding exon 1) of the IGF1R gene. This alteration results from a C to G substitution at nucleotide position 71, causing the serine (S) at amino acid position 24 to be replaced by a tryptophan (W). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.035
T
BayesDel_noAF
Benign
-0.29
CADD
Benign
22
DANN
Benign
0.97
DEOGEN2
Uncertain
0.54
D;.;D;.
Eigen
Benign
-0.39
Eigen_PC
Benign
-0.35
FATHMM_MKL
Benign
0.13
N
LIST_S2
Benign
0.82
.;.;T;T
M_CAP
Uncertain
0.15
D
MetaRNN
Benign
0.22
T;T;T;T
MetaSVM
Benign
-0.75
T
MutationAssessor
Benign
0.0
N;.;N;.
MutationTaster
Benign
0.95
D;D
PrimateAI
Uncertain
0.68
T
PROVEAN
Benign
-0.73
.;.;N;N
REVEL
Benign
0.21
Sift
Benign
0.070
.;.;T;T
Sift4G
Uncertain
0.023
.;.;D;D
Polyphen
0.29
B;P;B;P
Vest4
0.46, 0.41
MutPred
0.50
Gain of catalytic residue at S24 (P = 0.0576);Gain of catalytic residue at S24 (P = 0.0576);Gain of catalytic residue at S24 (P = 0.0576);Gain of catalytic residue at S24 (P = 0.0576);
MVP
0.74
MPC
1.2
ClinPred
0.22
T
GERP RS
1.7
Varity_R
0.10
gMVP
0.58

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs1013771934; hg19: chr15-99192881; API