Genetic Variant MEI1:p.Ile131Ile (chr22-41714045-C-T) – ACMG Classification: Benign (-15 pts)

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 2P and 17B. PM2BP4_StrongBP6_Very_StrongBP7BS1

The NM_152513.4(MEI1):c.393C>T(p.Ile131Ile) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000149 in 1,600,588 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.00081 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000079 ( 1 hom. )

Consequence

MEI1
NM_152513.4 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.833

Variant links:

Genes affected

MEI1 (HGNC:28613): (meiotic double-stranded break formation protein 1) Predicted to be involved in meiosis I. Predicted to act upstream of or within gamete generation; meiotic spindle organization; and meiotic telomere clustering. Implicated in gestational trophoblastic neoplasm. [provided by Alliance of Genome Resources, Apr 2022]

MEI1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -15 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.81).

BP6

Variant 22-41714045-C-T is Benign according to our data. Variant chr22-41714045-C-T is described in ClinVar as [Benign]. Clinvar id is 743001.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-0.833 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000814 (124/152278) while in subpopulation AFR AF= 0.00286 (119/41566). AF 95% confidence interval is 0.00245. There are 0 homozygotes in gnomad4. There are 57 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MEI1	NM_152513.4 link	c.393C>T	p.Ile131Ile	synonymous_variant	Exon 4 of 31	ENST00000401548.8	NP_689726.3	Q5TIA1-1Q4G0I1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MEI1	ENST00000401548.8 link	c.393C>T	p.Ile131Ile	synonymous_variant	Exon 4 of 31	1	NM_152513.4	ENSP00000384115.3		Q5TIA1-1
MEI1	ENST00000540833 link	c.-388C>T		5_prime_UTR_variant	Exon 4 of 20	5		ENSP00000444225.1		F5GZT0

Frequencies

GnomAD3 genomes

AF:

0.000815

AC:

124

AN:

152160

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00287

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.000479

GnomAD3 exomes

AF:

0.000192

AC:

AN:

228610

Hom.:

AF XY:

0.000154

AC XY:

AN XY:

123080

show subpopulations

Gnomad AFR exome

AF:

0.00309

Gnomad AMR exome

AF:

0.0000313

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000787

AC:

114

AN:

1448310

Hom.:

Cov.:

AF XY:

0.0000696

AC XY:

AN XY:

718882

show subpopulations

Gnomad4 AFR exome

AF:

0.00315

Gnomad4 AMR exome

AF:

0.0000235

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000120

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.000100

GnomAD4 genome

AF:

0.000814

AC:

124

AN:

152278

Hom.:

Cov.:

AF XY:

0.000766

AC XY:

AN XY:

74458

show subpopulations

Gnomad4 AFR

AF:

0.00286

Gnomad4 AMR

AF:

0.000262

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000474

Alfa

AF:

0.000679

Hom.:

Bravo

AF:

0.000910

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Jun 27, 2018

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

MEI1-related disorder

Benign:1

Aug 09, 2019

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.81

CADD

Benign

0.88

DANN

Benign

0.56

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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