rs6957923

Positions:

• chr7-23443066-G-A
• chr7-23443066-G-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_006547.3(IGF2BP3):​c.237-24242C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.355 in 146,114 control chromosomes in the GnomAD database, including 9,369 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 0.36 (9369 hom., cov: 28)
• Consequence: IGF2BP3 NM_006547.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.557

Genes affected

IGF2BP3 (HGNC:28868): (insulin like growth factor 2 mRNA binding protein 3) The protein encoded by this gene is primarily found in the nucleolus, where it can bind to the 5' UTR of the insulin-like growth factor II leader 3 mRNA and may repress translation of insulin-like growth factor II during late development. The encoded protein contains several KH domains, which are important in RNA binding and are known to be involved in RNA synthesis and metabolism. A pseudogene exists on chromosome 7, and there are putative pseudogenes on other chromosomes. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.396 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
IGF2BP3	NM_006547.3	c.237-24242C>T		intron_variant		ENST00000258729.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
IGF2BP3	ENST00000258729.8	c.237-24242C>T		intron_variant		1	NM_006547.3	P1

Frequencies

GnomAD3 genomes AF: 0.355 AC: 51871 AN: 146044 Hom.: 9367 Cov.: 28

Gnomad AFR AF: 0.401

Gnomad AMI AF: 0.140

Gnomad AMR AF: 0.303

Gnomad ASJ AF: 0.332

Gnomad EAS AF: 0.0559

Gnomad SAS AF: 0.340

Gnomad FIN AF: 0.266

Gnomad MID AF: 0.419

Gnomad NFE AF: 0.377

Gnomad OTH AF: 0.382

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

GnomAD4 genome AF: 0.355 AC: 51910 AN: 146114 Hom.: 9369 Cov.: 28 AF XY: 0.348 AC XY: 24589 AN XY: 70712

Gnomad4 AFR AF: 0.401

Gnomad4 AMR AF: 0.302

Gnomad4 ASJ AF: 0.332

Gnomad4 EAS AF: 0.0560

Gnomad4 SAS AF: 0.341

Gnomad4 FIN AF: 0.266

Gnomad4 NFE AF: 0.377

Gnomad4 OTH AF: 0.382

Alfa AF: 0.292 Hom.: 1481

Bravo AF: 0.349

Asia WGS AF: 0.204 AC: 714 AN: 3476

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	0.30
DANN	Benign	0.48

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

Other links and lift over

dbSNP: rs6957923; hg19: chr7-23482685; COSMIC: COSV51681984;