Variant chr17-18262751-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_139162.4(MIEF2):c.31C>T(p.Arg11Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000435 in 1,607,874 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000046 ( 0 hom. )

Consequence

MIEF2
NM_139162.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.646

Variant links:

Genes affected

MIEF2 (HGNC:17920): (mitochondrial elongation factor 2) This gene encodes an outer mitochondrial membrane protein that functions in the regulation of mitochondrial morphology. It can directly recruit the fission mediator dynamin-related protein 1 (Drp1) to the mitochondrial surface. The gene is located within the Smith-Magenis syndrome region on chromosome 17. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jun 2011]

MIEF2 links:

MIEF2 (HGNC:):

MIEF2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.068834096).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MIEF2	NM_139162.4 linkuse as main transcript	c.31C>T	p.Arg11Trp	missense_variant	2/4	ENST00000323019.9	NP_631901.2	Q96C03-1
MIEF2	NM_148886.2 linkuse as main transcript	c.64C>T	p.Arg22Trp	missense_variant	2/4		NP_683684.2	Q96C03-3
MIEF2	NM_001144900.3 linkuse as main transcript	c.31C>T	p.Arg11Trp	missense_variant	2/4		NP_001138372.1	Q96C03-2
MIEF2	XM_017024190.2 linkuse as main transcript	c.52C>T	p.Arg18Trp	missense_variant	2/4		XP_016879679.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MIEF2	ENST00000323019.9 linkuse as main transcript	c.31C>T	p.Arg11Trp	missense_variant	2/4	2	NM_139162.4	ENSP00000323591.4		Q96C03-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152240

Hom.:

Cov.:

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

GnomAD3 exomes

AF:

0.0000447

AC:

AN:

245964

Hom.:

AF XY:

0.0000525

AC XY:

AN XY:

133422

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000589

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000333

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000722

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000460

AC:

AN:

1455634

Hom.:

Cov.:

AF XY:

0.0000484

AC XY:

AN XY:

723668

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000454

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000584

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000532

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152240

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74378

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000568

Hom.:

Bravo

AF:

0.0000302

ExAC

AF:

0.0000907

AC:

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 submitter

clinical testing

Ambry Genetics

Aug 04, 2024

The c.64C>T (p.R22W) alteration is located in exon 2 (coding exon 2) of the MIEF2 gene. This alteration results from a C to T substitution at nucleotide position 64, causing the arginine (R) at amino acid position 22 to be replaced by a tryptophan (W). 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

Benign

0.12

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.49

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.063

T;.;.;T;T;T;.

Eigen

Benign

-0.59

Eigen_PC

Benign

-0.61

FATHMM_MKL

Benign

0.23

M_CAP

Benign

0.0069

MetaRNN

Benign

0.069

T;T;T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.9

L;.;L;.;.;.;.

PrimateAI

Benign

0.26

PROVEAN

Uncertain

-2.8

D;.;D;D;.;.;D

REVEL

Benign

0.040

Sift

Uncertain

0.0010

D;.;D;D;.;.;D

Sift4G

Uncertain

0.0030

D;D;D;D;D;D;D

Polyphen

0.0020

B;.;B;B;.;.;.

Vest4

0.24

MutPred

0.29

Loss of disorder (P = 0.0362);Loss of disorder (P = 0.0362);Loss of disorder (P = 0.0362);Loss of disorder (P = 0.0362);Loss of disorder (P = 0.0362);Loss of disorder (P = 0.0362);.;

MVP

0.22

MPC

0.32

ClinPred

0.18

GERP RS

2.1

Varity_R

0.11

gMVP

0.23

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over