rs3213232

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_StrongBA1

The NM_000612.6(IGF2):​c.158-69C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0844 in 1,579,410 control chromosomes in the GnomAD database, including 7,237 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 0.12 ( 1787 hom., cov: 33)
Exomes 𝑓: 0.080 ( 5450 hom. )

Consequence

IGF2
NM_000612.6 intron

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.64

Publications

13 publications found
Variant links:
Genes affected
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]
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]

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ACMG classification

Classification was made for transcript

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

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.95).
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.25 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000612.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IGF2
NM_000612.6
MANE Select
c.158-69C>T
intron
N/ANP_000603.1
IGF2
NM_001127598.3
c.326-69C>T
intron
N/ANP_001121070.1
IGF2
NM_001007139.6
c.158-69C>T
intron
N/ANP_001007140.2

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IGF2
ENST00000416167.7
TSL:1 MANE Select
c.158-69C>T
intron
N/AENSP00000414497.2
IGF2
ENST00000434045.6
TSL:1
c.326-69C>T
intron
N/AENSP00000391826.2
IGF2
ENST00000381392.5
TSL:1
c.158-60C>T
intron
N/AENSP00000370799.1

Frequencies

GnomAD3 genomes
AF:
0.124
AC:
18936
AN:
152110
Hom.:
1781
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.255
Gnomad AMI
AF:
0.00219
Gnomad AMR
AF:
0.0938
Gnomad ASJ
AF:
0.0968
Gnomad EAS
AF:
0.000962
Gnomad SAS
AF:
0.0416
Gnomad FIN
AF:
0.0795
Gnomad MID
AF:
0.0949
Gnomad NFE
AF:
0.0775
Gnomad OTH
AF:
0.129
GnomAD4 exome
AF:
0.0801
AC:
114303
AN:
1427182
Hom.:
5450
AF XY:
0.0787
AC XY:
55808
AN XY:
708846
show subpopulations
African (AFR)
AF:
0.254
AC:
8198
AN:
32296
American (AMR)
AF:
0.0599
AC:
2433
AN:
40590
Ashkenazi Jewish (ASJ)
AF:
0.106
AC:
2684
AN:
25400
East Asian (EAS)
AF:
0.000342
AC:
13
AN:
37984
South Asian (SAS)
AF:
0.0467
AC:
3869
AN:
82912
European-Finnish (FIN)
AF:
0.0795
AC:
4049
AN:
50910
Middle Eastern (MID)
AF:
0.0810
AC:
368
AN:
4544
European-Non Finnish (NFE)
AF:
0.0803
AC:
87769
AN:
1093636
Other (OTH)
AF:
0.0835
AC:
4920
AN:
58910
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
Heterozygous variant carriers
0
5316
10632
15949
21265
26581
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
3328
6656
9984
13312
16640
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.124
AC:
18943
AN:
152228
Hom.:
1787
Cov.:
33
AF XY:
0.122
AC XY:
9053
AN XY:
74458
show subpopulations
African (AFR)
AF:
0.254
AC:
10558
AN:
41500
American (AMR)
AF:
0.0937
AC:
1434
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.0968
AC:
336
AN:
3470
East Asian (EAS)
AF:
0.000965
AC:
5
AN:
5184
South Asian (SAS)
AF:
0.0414
AC:
200
AN:
4826
European-Finnish (FIN)
AF:
0.0795
AC:
843
AN:
10610
Middle Eastern (MID)
AF:
0.0850
AC:
25
AN:
294
European-Non Finnish (NFE)
AF:
0.0775
AC:
5271
AN:
68010
Other (OTH)
AF:
0.127
AC:
269
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.498
Heterozygous variant carriers
0
803
1605
2408
3210
4013
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
194
388
582
776
970
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0976
Hom.:
1026
Bravo
AF:
0.135
Asia WGS
AF:
0.0270
AC:
95
AN:
3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.95
CADD
Benign
0.41
DANN
Benign
0.63
PhyloP100
-1.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
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

Publications

Other links and lift over

dbSNP: rs3213232; hg19: chr11-2154964; COSMIC: COSV56098177; COSMIC: COSV56098177; API