rs883149

Variant names:

• chr15-98906472-T-A
• rs883149
• NM_000875.5:c.1248-2213T>A

Your query was ambiguous. Multiple possible variants found:

• chr15-98906472-T-A
• chr15-98906472-T-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.1248-2213T>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.176 in 152,198 control chromosomes in the GnomAD database, including 2,462 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 0.18 (2462 hom., cov: 33)
• Consequence: IGF1R NM_000875.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.262
• Publications: 4 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=-0.86).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.224 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.1248-2213T>A		intron	N/A	NP_000866.1	P08069
	IGF1R	NM_001291858.2		c.1248-2213T>A		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.1248-2213T>A		intron	N/A	ENSP00000497069.1	P08069
	IGF1R	ENST00000559925.5	TSL:1	n.1248-2213T>A		intron	N/A
	IGF1R	ENST00000649865.1		c.1248-2213T>A		intron	N/A	ENSP00000496919.1	C9J5X1

Frequencies

GnomAD3 genomes AF: 0.176 AC: 26781 AN: 152080 Hom.: 2463 Cov.: 33

Gnomad AFR AF: 0.140

Gnomad AMI AF: 0.0998

Gnomad AMR AF: 0.193

Gnomad ASJ AF: 0.198

Gnomad EAS AF: 0.235

Gnomad SAS AF: 0.109

Gnomad FIN AF: 0.162

Gnomad MID AF: 0.146

Gnomad NFE AF: 0.197

Gnomad OTH AF: 0.171

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

GnomAD4 genome AF: 0.176 AC: 26803 AN: 152198 Hom.: 2462 Cov.: 33 AF XY: 0.174 AC XY: 12931 AN XY: 74410

African (AFR) AF: 0.140 AC: 5805 AN: 41516

American (AMR) AF: 0.192 AC: 2945 AN: 15300

Ashkenazi Jewish (ASJ) AF: 0.198 AC: 685 AN: 3468

East Asian (EAS) AF: 0.235 AC: 1215 AN: 5178

South Asian (SAS) AF: 0.109 AC: 528 AN: 4826

European-Finnish (FIN) AF: 0.162 AC: 1713 AN: 10602

Middle Eastern (MID) AF: 0.153 AC: 45 AN: 294

European-Non Finnish (NFE) AF: 0.197 AC: 13417 AN: 67992

Other (OTH) AF: 0.170 AC: 359 AN: 2110

Alfa AF: 0.191 Hom.: 339

Bravo AF: 0.179

Asia WGS AF: 0.181 AC: 632 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.86
CADD	Benign	0.95
DANN	Benign	0.62
PhyloP100		-0.26
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: rs883149; hg19: chr15-99449701;