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GeneBe

7-23418811-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_006547.3(IGF2BP3):c.250C>G(p.Gln84Glu) variant causes a missense change. The variant allele was found at a frequency of 0.00000886 in 1,580,184 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000084 ( 0 hom. )

Consequence

IGF2BP3
NM_006547.3 missense

Scores

2
6
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.64
Variant links:
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IGF2BP3NM_006547.3 linkuse as main transcriptc.250C>G p.Gln84Glu missense_variant 3/15 ENST00000258729.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IGF2BP3ENST00000258729.8 linkuse as main transcriptc.250C>G p.Gln84Glu missense_variant 3/151 NM_006547.3 P1O00425-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152108
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000418
AC:
9
AN:
215394
Hom.:
0
AF XY:
0.0000345
AC XY:
4
AN XY:
116008
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000155
Gnomad ASJ exome
AF:
0.000109
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000331
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000840
AC:
12
AN:
1428076
Hom.:
0
Cov.:
26
AF XY:
0.00000564
AC XY:
4
AN XY:
708810
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000163
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000275
Gnomad4 OTH exome
AF:
0.0000341
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152108
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74294
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000959
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.0000249
AC:
3

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 18, 2023The c.250C>G (p.Q84E) alteration is located in exon 3 (coding exon 3) of the IGF2BP3 gene. This alteration results from a C to G substitution at nucleotide position 250, causing the glutamine (Q) at amino acid position 84 to be replaced by a glutamic acid (E). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.78
BayesDel_addAF
Benign
-0.34
T
BayesDel_noAF
Benign
-0.46
Cadd
Pathogenic
29
Dann
Uncertain
0.99
DEOGEN2
Benign
0.079
T
Eigen
Pathogenic
0.71
Eigen_PC
Uncertain
0.65
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Benign
0.85
T
M_CAP
Benign
0.012
T
MetaRNN
Uncertain
0.65
D
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.8
M
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.73
T
PROVEAN
Benign
-1.8
N
REVEL
Benign
0.19
Sift
Benign
0.061
T
Sift4G
Benign
0.071
T
Polyphen
1.0
D
Vest4
0.64
MutPred
0.64
Loss of MoRF binding (P = 0.056);
MVP
0.62
MPC
1.6
ClinPred
0.78
D
GERP RS
4.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.59
gMVP
0.75

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs757666193; hg19: chr7-23458430; API