rs3743262

Variant names:

• chr15-98922244-C-A
• rs3743262
• NM_000875.5:c.2298C>A

Your query was ambiguous. Multiple possible variants found:

• chr15-98922244-C-A
• chr15-98922244-C-T

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2 BP4_Moderate BP7

The NM_000875.5(IGF1R):​c.2298C>A​(p.Thr766Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. T766T) has been classified as Benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: IGF1R NM_000875.5 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.664
• Publications: 34 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, Labcorp Genetics (formerly Invitae), Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.44).
• BP7: Synonymous conserved (PhyloP=-0.664 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IGF1R	NM_000875.5	c.2298C>A	p.Thr766Thr	synonymous_variant	Exon 11 of 21	ENST00000650285.1	NP_000866.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IGF1R	ENST00000650285.1	c.2298C>A	p.Thr766Thr	synonymous_variant	Exon 11 of 21		NM_000875.5	ENSP00000497069.1
IGF1R	ENST00000649865.1	c.2298C>A	p.Thr766Thr	synonymous_variant	Exon 11 of 21			ENSP00000496919.1
IGF1R	ENST00000561049.1	n.489C>A		non_coding_transcript_exon_variant	Exon 2 of 3	5
IGF1R	ENST00000560144.1	n.*256C>A		downstream_gene_variant		3		ENSP00000456950.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.44
CADD	Benign	0.67
DANN	Benign	0.37
PhyloP100		-0.66

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: rs3743262; hg19: chr15-99465473;