NM_016097.5:c.218T>C

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 3P and 1B. PM2PP2BP4

The NM_016097.5(IER3IP1):​c.218T>C​(p.Ile73Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000268 in 1,569,810 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I73V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000028 ( 0 hom. )

Consequence

IER3IP1
NM_016097.5 missense

Scores

1
5
11

Clinical Significance

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

Conservation

PhyloP100: 7.23

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: G2P, Labcorp Genetics (formerly Invitae)
  • primary microcephaly-epilepsy-permanent neonatal diabetes syndrome
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Genomics England PanelApp

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
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.
BP4
Computational evidence support a benign effect (MetaRNN=0.3193272).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016097.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IER3IP1
NM_016097.5
MANE Select
c.218T>Cp.Ile73Thr
missense
Exon 3 of 3NP_057181.1Q9Y5U9

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IER3IP1
ENST00000256433.6
TSL:1 MANE Select
c.218T>Cp.Ile73Thr
missense
Exon 3 of 3ENSP00000256433.3Q9Y5U9
ENSG00000267228
ENST00000588705.1
TSL:2
n.218T>C
non_coding_transcript_exon
Exon 3 of 6ENSP00000465194.1
IER3IP1
ENST00000932440.1
c.335T>Cp.Ile112Thr
missense
Exon 4 of 4ENSP00000602499.1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152114
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000160
AC:
4
AN:
249628
AF XY:
0.0000222
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000354
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000275
AC:
39
AN:
1417696
Hom.:
0
Cov.:
26
AF XY:
0.0000269
AC XY:
19
AN XY:
707448
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32596
American (AMR)
AF:
0.00
AC:
0
AN:
44574
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25842
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39392
South Asian (SAS)
AF:
0.00
AC:
0
AN:
84854
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53360
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5664
European-Non Finnish (NFE)
AF:
0.0000364
AC:
39
AN:
1072488
Other (OTH)
AF:
0.00
AC:
0
AN:
58926
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.448
Heterozygous variant carriers
0
3
5
8
10
13
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.0000197
AC:
3
AN:
152114
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74308
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41422
American (AMR)
AF:
0.00
AC:
0
AN:
15268
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10592
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68026
Other (OTH)
AF:
0.00
AC:
0
AN:
2086
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.0000386
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Inborn genetic diseases (1)
-
1
-
Microcephaly, epilepsy, and diabetes syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.0019
T
BayesDel_noAF
Benign
-0.11
CADD
Benign
20
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.58
D
Eigen
Benign
0.14
Eigen_PC
Uncertain
0.32
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Benign
0.82
T
M_CAP
Uncertain
0.096
D
MetaRNN
Benign
0.32
T
MetaSVM
Benign
-0.30
T
PhyloP100
7.2
PrimateAI
Benign
0.48
T
PROVEAN
Benign
-2.2
N
REVEL
Uncertain
0.31
Sift
Benign
0.059
T
Sift4G
Benign
0.080
T
Polyphen
0.033
B
Vest4
0.30
MVP
0.81
MPC
0.088
ClinPred
0.66
D
GERP RS
5.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.17
gMVP
0.63
Mutation Taster
=67/33
polymorphism

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: rs765425942; hg19: chr18-44682579; API