rs7924316

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001042376.3(INS-IGF2):​c.188-2872A>G variant causes a intron 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.

Frequency

Genomes: not found (cov: 33)

Consequence

INS-IGF2
NM_001042376.3 intron

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.458
Variant links:
Genes affected
INS-IGF2 (HGNC:33527): (INS-IGF2 readthrough) This locus includes two alternatively spliced read-through transcript variants which align to the INS gene in the 5' region and to the IGF2 gene in the 3' region. One transcript is predicted to encode a protein which shares the N-terminus with the INS protein but has a distinct and longer C-terminus, whereas the other transcript is a candidate for nonsense-mediated decay (NMD). The transcripts are imprinted and are paternally expressed in the limb and eye. [provided by RefSeq, Jul 2008]
IGF2 (HGNC:5466): (insulin like growth factor 2) This gene encodes a member of the insulin family of polypeptide growth factors, which are involved in development and growth. It is an imprinted gene, expressed only from the paternal allele, and epigenetic changes at this locus are associated with Wilms tumour, Beckwith-Wiedemann syndrome, rhabdomyosarcoma, and Silver-Russell syndrome. A read-through INS-IGF2 gene exists, whose 5' region overlaps the INS gene and the 3' region overlaps this gene. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2010]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.84).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
INS-IGF2NM_001042376.3 linkc.188-2872A>G intron_variant Intron 2 of 4 NP_001035835.1 F8WCM5-1
INS-IGF2NR_003512.4 linkn.247-2872A>G intron_variant Intron 2 of 6

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
INS-IGF2ENST00000397270.1 linkc.188-2872A>G intron_variant Intron 2 of 4 1 ENSP00000380440.1 F8WCM5-1
IGF2ENST00000481781.3 linkc.-468-2872A>G intron_variant Intron 1 of 5 5 ENSP00000511998.1 P01344-1
INS-IGF2ENST00000356578.8 linkn.188-2872A>G intron_variant Intron 2 of 6 5 ENSP00000348986.4 F8WCM5-1
IGF2ENST00000476874.1 linkn.71-2872A>G intron_variant Intron 1 of 1 3

Frequencies

GnomAD3 genomes
Cov.:
33
We have no GnomAD4 exomes data on this position. Probably position not covered by the project.
GnomAD4 genome
Cov.:
33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.84
CADD
Benign
1.5
DANN
Benign
0.41

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr11-2173447; API