15-98649682-A-G

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_ModerateBP6_ModerateBS1

The NM_000875.5(IGF1R):​c.94+7A>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000212 in 1,602,262 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

IGF1R
NM_000875.5 splice_region, intron

Scores

2
Splicing: ADA: 0.0008908
2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 1.99
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 -8 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.42).
BP6
Variant 15-98649682-A-G is Benign according to our data. Variant chr15-98649682-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 739870.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.0000329 (5/151930) while in subpopulation EAS AF= 0.000977 (5/5120). AF 95% confidence interval is 0.000384. 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 UniProt
IGF1RNM_000875.5 linkuse as main transcriptc.94+7A>G splice_region_variant, intron_variant ENST00000650285.1
IRAINNR_126453.2 linkuse as main transcriptn.1106T>C non_coding_transcript_exon_variant 1/1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IGF1RENST00000650285.1 linkuse as main transcriptc.94+7A>G splice_region_variant, intron_variant NM_000875.5 P4
IGF1RENST00000559925.5 linkuse as main transcriptn.94+7A>G splice_region_variant, intron_variant, non_coding_transcript_variant 1
IGF1RENST00000649865.1 linkuse as main transcriptc.94+7A>G splice_region_variant, intron_variant A1

Frequencies

GnomAD3 genomes
AF:
0.0000395
AC:
6
AN:
151828
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:
0.00117
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:
0.0000568
AC:
14
AN:
246446
Hom.:
0
AF XY:
0.0000523
AC XY:
7
AN XY:
133924
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000720
Gnomad SAS exome
AF:
0.0000332
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000200
AC:
29
AN:
1450332
Hom.:
0
Cov.:
30
AF XY:
0.0000208
AC XY:
15
AN XY:
722044
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000558
Gnomad4 SAS exome
AF:
0.0000117
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000362
Gnomad4 OTH exome
AF:
0.0000333
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
151930
Hom.:
0
Cov.:
32
AF XY:
0.0000404
AC XY:
3
AN XY:
74252
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000977
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000378
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeJul 31, 2018- -
IGF1R-related disorder Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesJul 28, 2020This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.42
CADD
Benign
16
DANN
Benign
0.90

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00089
dbscSNV1_RF
Benign
0.082
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: rs201544675; hg19: chr15-99192911; API