chr15-98685350-C-G

Variant names:

• chr15-98685350-C-G
• rs1317459
• NM_000875.5:c.95-22212C>G

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_000875.5(IGF1R):​c.95-22212C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.128 in 152,164 control chromosomes in the GnomAD database, including 2,478 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.13 (2478 hom., cov: 32)
• Consequence: IGF1R NM_000875.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.116
• Publications: 2 publications found

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 Gene-Disease associations (from GenCC):

• growth delay due to insulin-like growth factor I resistance

  Inheritance: AR, AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.9).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.322 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000875.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	IGF1R	NM_000875.5	MANE Select	c.95-22212C>G		intron	N/A	NP_000866.1	P08069
	IGF1R	NM_001291858.2		c.95-22212C>G		intron	N/A	NP_001278787.1	C9J5X1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	IGF1R	ENST00000650285.1	MANE Select	c.95-22212C>G		intron	N/A	ENSP00000497069.1	P08069
	IGF1R	ENST00000559925.5	TSL:1	n.95-22212C>G		intron	N/A
	IGF1R	ENST00000649865.1		c.95-22212C>G		intron	N/A	ENSP00000496919.1	C9J5X1

Frequencies

GnomAD3 genomes AF: 0.128 AC: 19412 AN: 152046 Hom.: 2476 Cov.: 32

Gnomad AFR AF: 0.327

Gnomad AMI AF: 0.00987

Gnomad AMR AF: 0.0902

Gnomad ASJ AF: 0.0916

Gnomad EAS AF: 0.00174

Gnomad SAS AF: 0.0367

Gnomad FIN AF: 0.0154

Gnomad MID AF: 0.169

Gnomad NFE AF: 0.0521

Gnomad OTH AF: 0.119

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.128 AC: 19427 AN: 152164 Hom.: 2478 Cov.: 32 AF XY: 0.123 AC XY: 9183 AN XY: 74374

African (AFR) AF: 0.326 AC: 13531 AN: 41470

American (AMR) AF: 0.0901 AC: 1377 AN: 15290

Ashkenazi Jewish (ASJ) AF: 0.0916 AC: 318 AN: 3472

East Asian (EAS) AF: 0.00174 AC: 9 AN: 5168

South Asian (SAS) AF: 0.0361 AC: 174 AN: 4820

European-Finnish (FIN) AF: 0.0154 AC: 163 AN: 10610

Middle Eastern (MID) AF: 0.175 AC: 51 AN: 292

European-Non Finnish (NFE) AF: 0.0521 AC: 3545 AN: 68020

Other (OTH) AF: 0.118 AC: 250 AN: 2110

Alfa AF: 0.0922 Hom.: 203

Bravo AF: 0.142

Asia WGS AF: 0.0370 AC: 128 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
CADD	Benign	3.1
DANN	Benign	0.74
PhyloP100		-0.12
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs1317459; hg19: chr15-99228579;