rs536988795

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PP2

The NM_016097.5(IER3IP1):​c.223A>G​(p.Ile75Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000216 in 1,571,462 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

IER3IP1
NM_016097.5 missense

Scores

4
9
5

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 6.20

Publications

0 publications found
Variant links:
Genes affected
IER3IP1 (HGNC:18550): (immediate early response 3 interacting protein 1) This gene encodes a small protein that is localized to the endoplasmic reticulum (ER) and may play a role in the ER stress response by mediating cell differentiation and apoptosis. Transcription of this gene is regulated by tumor necrosis factor alpha and specificity protein 1 (Sp1). Mutations in this gene may play a role in microcephaly, epilepsy, and diabetes syndrome (MEDS), and a pseudogene of this gene is located on the long arm of chromosome 12. [provided by RefSeq, Dec 2011]
IER3IP1 Gene-Disease associations (from GenCC):
  • microcephaly, epilepsy, and diabetes syndrome 1
    Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
  • primary microcephaly-epilepsy-permanent neonatal diabetes syndrome
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 1 curated pathogenic missense variants (we use a threshold of 10). The gene has 0 curated benign missense variants. Gene score misZ: -0.39197 (below the threshold of 3.09). Trascript score misZ: -0.049149 (below the threshold of 3.09). GenCC associations: The gene is linked to microcephaly, epilepsy, and diabetes syndrome 1, primary microcephaly-epilepsy-permanent neonatal diabetes syndrome.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
IER3IP1NM_016097.5 linkc.223A>G p.Ile75Val missense_variant Exon 3 of 3 ENST00000256433.6 NP_057181.1 Q9Y5U9

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
IER3IP1ENST00000256433.6 linkc.223A>G p.Ile75Val missense_variant Exon 3 of 3 1 NM_016097.5 ENSP00000256433.3 Q9Y5U9
ENSG00000267228ENST00000588705.1 linkn.223A>G non_coding_transcript_exon_variant Exon 3 of 6 2 ENSP00000465194.1
ENSG00000267228ENST00000602459.6 linkn.92-19754A>G intron_variant Intron 1 of 6 5 ENSP00000473358.1 R4GN61
ENSG00000267228ENST00000602926.5 linkn.92-19754A>G intron_variant Intron 1 of 2 2 ENSP00000473502.1 R4GN61

Frequencies

GnomAD3 genomes
AF:
0.000105
AC:
16
AN:
151744
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00105
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
GnomAD2 exomes
AF:
0.0000360
AC:
9
AN:
250038
AF XY:
0.0000296
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000232
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000884
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000127
AC:
18
AN:
1419602
Hom.:
0
Cov.:
26
AF XY:
0.0000113
AC XY:
8
AN XY:
708384
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32622
American (AMR)
AF:
0.000202
AC:
9
AN:
44608
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25864
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39406
South Asian (SAS)
AF:
0.0000118
AC:
1
AN:
84996
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53370
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5672
European-Non Finnish (NFE)
AF:
0.00000559
AC:
6
AN:
1074086
Other (OTH)
AF:
0.0000339
AC:
2
AN:
58978
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.444
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000105
AC:
16
AN:
151860
Hom.:
0
Cov.:
33
AF XY:
0.000135
AC XY:
10
AN XY:
74218
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41418
American (AMR)
AF:
0.00105
AC:
16
AN:
15228
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3464
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5166
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4798
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10512
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67960
Other (OTH)
AF:
0.00
AC:
0
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.469
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00
Hom.:
0
Bravo
AF:
0.000132
ExAC
AF:
0.0000330
AC:
4

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Microcephaly, epilepsy, and diabetes syndrome Uncertain:2
Aug 23, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces isoleucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 75 of the IER3IP1 protein (p.Ile75Val). This variant is present in population databases (rs536988795, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with IER3IP1-related conditions. ClinVar contains an entry for this variant (Variation ID: 472569). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Sep 09, 2020
New York Genome Center
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.057
T
BayesDel_noAF
Uncertain
-0.030
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.49
T
Eigen
Pathogenic
0.69
Eigen_PC
Pathogenic
0.71
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.80
T
M_CAP
Pathogenic
0.44
D
MetaRNN
Uncertain
0.43
T
MetaSVM
Uncertain
0.65
D
PhyloP100
6.2
PrimateAI
Uncertain
0.50
T
PROVEAN
Benign
-0.74
N
REVEL
Uncertain
0.58
Sift
Uncertain
0.017
D
Sift4G
Pathogenic
0.0
D
Polyphen
0.99
D
Vest4
0.58
MutPred
0.72
Loss of catalytic residue at L80 (P = 0.0233);
MVP
0.64
MPC
0.35
ClinPred
0.84
D
GERP RS
5.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.34
gMVP
0.76
Mutation Taster
=69/31
polymorphism

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

Other links and lift over

dbSNP: rs536988795; hg19: chr18-44682574; API