18-47157459-C-T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 1P and 4B. PP2BP4_Strong

The NM_016097.5(IER3IP1):c.170G>A(p.Arg57Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000379 in 1,613,946 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R57L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0018 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00023 ( 1 hom. )

Consequence

IER3IP1
NM_016097.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:2

Conservation

PhyloP100: 7.37

Publications

2 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

IER3IP1 links:

ENSG00000267228 (HGNC:):

ENSG00000267228 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 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 primary microcephaly-epilepsy-permanent neonatal diabetes syndrome, microcephaly, epilepsy, and diabetes syndrome 1.

BP4

Computational evidence support a benign effect (MetaRNN=0.012431443).

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.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	IER3IP1	NM_016097.5	MANE Select	c.170G>A	p.Arg57Gln	missense	Exon 2 of 3	NP_057181.1	Q9Y5U9

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
IER3IP1	ENST00000256433.6	TSL:1 MANE Select	c.170G>A	p.Arg57Gln	missense	Exon 2 of 3	ENSP00000256433.3	Q9Y5U9
ENSG00000267228	ENST00000588705.1	TSL:2	n.170G>A		non_coding_transcript_exon	Exon 2 of 6	ENSP00000465194.1
IER3IP1	ENST00000932440.1		c.287G>A	p.Arg96Gln	missense	Exon 3 of 4	ENSP00000602499.1

Frequencies

GnomAD3 genomes

AF:

0.00182

AC:

277

AN:

152138

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00637

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000721

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000525

AC:

132

AN:

251396

AF XY:

0.000420

show subpopulations

Gnomad AFR exome

AF:

0.00732

Gnomad AMR exome

AF:

0.000347

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000229

AC:

335

AN:

1461690

Hom.:

Cov.:

AF XY:

0.000184

AC XY:

134

AN XY:

727162

show subpopulations

African (AFR)

AF:

0.00866

AC:

290

AN:

33478

American (AMR)

AF:

0.000402

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26126

East Asian (EAS)

AF:

0.00

AC:

AN:

39680

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53414

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00000540

AC:

AN:

1111862

Other (OTH)

AF:

0.000331

AC:

AN:

60388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.461

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

100

<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:

0.00182

AC:

277

AN:

152256

Hom.:

Cov.:

AF XY:

0.00164

AC XY:

122

AN XY:

74440

show subpopulations

African (AFR)

AF:

0.00636

AC:

264

AN:

41542

American (AMR)

AF:

0.000720

AC:

AN:

15282

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10600

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68032

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.507

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000706

Hom.:

Bravo

AF:

0.00244

ESP6500AA

AF:

0.00704

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000692

AC:

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (3)

IER3IP1-related disorder (1)

Microcephaly, epilepsy, and diabetes syndrome (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Benign

-0.063

BayesDel_noAF

Pathogenic

0.14

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.55

Eigen

Uncertain

0.23

Eigen_PC

Uncertain

0.40

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.93

MetaRNN

Benign

0.012

MetaSVM

Benign

-0.52

PhyloP100

7.4

PrimateAI

Uncertain

0.61

PROVEAN

Uncertain

-2.7

REVEL

Uncertain

0.51

Sift

Benign

0.49

Sift4G

Benign

0.37

Polyphen

0.31

Vest4

0.81

MVP

0.78

MPC

0.076

ClinPred

0.069

GERP RS

5.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.54

gMVP

0.81

Mutation Taster

=90/10

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over