18-47156211-G-A

Variant summary

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

The NM_016097.5(IER3IP1):​c.215C>T​(p.Ser72Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000028 in 1,570,070 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

IER3IP1
NM_016097.5 missense

Scores

3
8
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.75
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]

Genome browser will be placed here

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
IER3IP1NM_016097.5 linkuse as main transcriptc.215C>T p.Ser72Leu missense_variant 3/3 ENST00000256433.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IER3IP1ENST00000256433.6 linkuse as main transcriptc.215C>T p.Ser72Leu missense_variant 3/31 NM_016097.5 P1

Frequencies

GnomAD3 genomes
AF:
0.0000198
AC:
3
AN:
151524
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000442
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000120
AC:
3
AN:
249144
Hom.:
0
AF XY:
0.0000223
AC XY:
3
AN XY:
134556
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000177
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.0000289
AC:
41
AN:
1418546
Hom.:
0
Cov.:
26
AF XY:
0.0000283
AC XY:
20
AN XY:
707710
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.0000382
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000198
AC:
3
AN:
151524
Hom.:
0
Cov.:
32
AF XY:
0.0000271
AC XY:
2
AN XY:
73918
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000442
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000564
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.00000824
AC:
1

ClinVar

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

Submissions by phenotype

Microcephaly, epilepsy, and diabetes syndrome Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpSep 19, 2022This sequence change replaces serine, which is neutral and polar, with leucine, which is neutral and non-polar, at codon 72 of the IER3IP1 protein (p.Ser72Leu). This variant is present in population databases (rs200201845, gnomAD 0.003%). 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: 539835). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Pathogenic
0.39
D
BayesDel_noAF
Pathogenic
0.33
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Benign
0.19
T
Eigen
Uncertain
0.20
Eigen_PC
Uncertain
0.39
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.97
D
M_CAP
Uncertain
0.10
D
MetaRNN
Uncertain
0.69
D
MetaSVM
Benign
-0.60
T
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.65
T
PROVEAN
Benign
0.54
N
REVEL
Uncertain
0.37
Sift
Benign
0.28
T
Sift4G
Benign
0.36
T
Polyphen
0.15
B
Vest4
0.80
MutPred
0.40
Gain of MoRF binding (P = 0.1588);
MVP
0.88
MPC
0.061
ClinPred
0.91
D
GERP RS
5.9
Varity_R
0.16
gMVP
0.82

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
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: rs200201845; hg19: chr18-44682582; API