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GeneBe

rs45611935

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 1P and 8B. PP2BP4_StrongBS1

The NM_000875.5(IGF1R):c.2570A>C(p.Asn857Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000186 in 1,613,936 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N857S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

IGF1R
NM_000875.5 missense

Scores

4
10

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.90
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PP2
Missense variant where missense usually causes diseases, IGF1R
BP4
Computational evidence support a benign effect (MetaRNN=0.047744125).
BS1
Variant frequency is greater than expected in population sas. gnomad4_exome allele frequency = 0.0000198 (29/1461716) while in subpopulation SAS AF= 0.000325 (28/86256). AF 95% confidence interval is 0.00023. There are 0 homozygotes in gnomad4_exome. There are 24 alleles in male gnomad4_exome subpopulation. Median coverage is 31. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IGF1RNM_000875.5 linkuse as main transcriptc.2570A>C p.Asn857Thr missense_variant 12/21 ENST00000650285.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IGF1RENST00000650285.1 linkuse as main transcriptc.2570A>C p.Asn857Thr missense_variant 12/21 NM_000875.5 P4
IGF1RENST00000649865.1 linkuse as main transcriptc.2570A>C p.Asn857Thr missense_variant 12/21 A1
IGF1RENST00000560343.1 linkuse as main transcriptn.179A>C non_coding_transcript_exon_variant 1/23

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152220
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:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000477
AC:
12
AN:
251494
Hom.:
0
AF XY:
0.0000736
AC XY:
10
AN XY:
135920
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:
0.000392
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000198
AC:
29
AN:
1461716
Hom.:
0
Cov.:
31
AF XY:
0.0000330
AC XY:
24
AN XY:
727184
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:
0.000325
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152220
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74362
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.0000659
AC:
8

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.15
BayesDel_addAF
Benign
-0.37
T
BayesDel_noAF
Benign
-0.45
Cadd
Benign
21
Dann
Uncertain
0.99
DEOGEN2
Uncertain
0.55
D;.;D;.
Eigen
Benign
-0.089
Eigen_PC
Benign
0.10
FATHMM_MKL
Uncertain
0.83
D
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.048
T;T;T;T
MetaSVM
Benign
-0.91
T
MutationAssessor
Benign
1.2
L;.;L;.
MutationTaster
Benign
0.85
D;D
PrimateAI
Uncertain
0.58
T
Polyphen
0.011
B;B;B;B
Vest4
0.16, 0.16
MutPred
0.27
Gain of phosphorylation at N857 (P = 0.0202);Gain of phosphorylation at N857 (P = 0.0202);Gain of phosphorylation at N857 (P = 0.0202);Gain of phosphorylation at N857 (P = 0.0202);
MVP
0.59
MPC
0.64
ClinPred
0.059
T
GERP RS
5.8
Varity_R
0.16
gMVP
0.45

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: rs45611935; hg19: chr15-99467189; API