16-3243369-C-T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BS1BS2

The NM_000243.3(MEFV):​c.2118G>A​(p.Pro706Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00293 in 1,614,066 control chromosomes in the GnomAD database, including 34 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0081 ( 7 hom., cov: 32)
Exomes 𝑓: 0.0024 ( 27 hom. )

Consequence

MEFV
NM_000243.3 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:13

Conservation

PhyloP100: -7.21
Variant links:
Genes affected
MEFV (HGNC:6998): (MEFV innate immunity regulator, pyrin) This gene encodes a protein, also known as pyrin or marenostrin, that is an important modulator of innate immunity. Mutations in this gene are associated with Mediterranean fever, a hereditary periodic fever syndrome. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.89).
BP6
Variant 16-3243369-C-T is Benign according to our data. Variant chr16-3243369-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 36508.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Benign=7, Uncertain_significance=1}. Variant chr16-3243369-C-T is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=-7.2 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00812 (1236/152196) while in subpopulation AFR AF= 0.0224 (928/41518). AF 95% confidence interval is 0.0212. There are 7 homozygotes in gnomad4. There are 576 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 7 SD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MEFVNM_000243.3 linkc.2118G>A p.Pro706Pro synonymous_variant Exon 10 of 10 ENST00000219596.6 NP_000234.1 O15553-2
MEFVNM_001198536.2 linkc.*322G>A 3_prime_UTR_variant Exon 9 of 9 NP_001185465.2 O15553-3D2DTW2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MEFVENST00000219596.6 linkc.2118G>A p.Pro706Pro synonymous_variant Exon 10 of 10 1 NM_000243.3 ENSP00000219596.1 O15553-2

Frequencies

GnomAD3 genomes
AF:
0.00810
AC:
1232
AN:
152078
Hom.:
7
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0223
Gnomad AMI
AF:
0.00879
Gnomad AMR
AF:
0.00864
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000622
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.0253
Gnomad NFE
AF:
0.00197
Gnomad OTH
AF:
0.0105
GnomAD3 exomes
AF:
0.00364
AC:
916
AN:
251470
Hom.:
3
AF XY:
0.00316
AC XY:
429
AN XY:
135908
show subpopulations
Gnomad AFR exome
AF:
0.0203
Gnomad AMR exome
AF:
0.00671
Gnomad ASJ exome
AF:
0.000694
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000555
Gnomad FIN exome
AF:
0.0000924
Gnomad NFE exome
AF:
0.00245
Gnomad OTH exome
AF:
0.00799
GnomAD4 exome
AF:
0.00239
AC:
3498
AN:
1461870
Hom.:
27
Cov.:
32
AF XY:
0.00234
AC XY:
1702
AN XY:
727230
show subpopulations
Gnomad4 AFR exome
AF:
0.0231
Gnomad4 AMR exome
AF:
0.00662
Gnomad4 ASJ exome
AF:
0.000230
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000603
Gnomad4 FIN exome
AF:
0.000131
Gnomad4 NFE exome
AF:
0.00173
Gnomad4 OTH exome
AF:
0.00467
GnomAD4 genome
AF:
0.00812
AC:
1236
AN:
152196
Hom.:
7
Cov.:
32
AF XY:
0.00774
AC XY:
576
AN XY:
74398
show subpopulations
Gnomad4 AFR
AF:
0.0224
Gnomad4 AMR
AF:
0.00863
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000623
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00198
Gnomad4 OTH
AF:
0.00995
Alfa
AF:
0.00506
Hom.:
3
Bravo
AF:
0.00941
Asia WGS
AF:
0.00202
AC:
7
AN:
3478
EpiCase
AF:
0.00294
EpiControl
AF:
0.00344

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:13
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Familial Mediterranean fever Uncertain:1Benign:4
Feb 13, 2018
Illumina Laboratory Services, Illumina
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. However, the evidence from the literature, in combination with allele frequency data from public databases where available, was not sufficient to rule this variant in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

Apr 24, 2023
Molecular Genetics Laboratory, BC Children's and BC Women's Hospitals
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Aug 18, 2011
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing;curation

- -

Dec 09, 2019
Natera, Inc.
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Benign:4
-
Pathology and Clinical Laboratory Medicine, King Fahad Medical City
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

-
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

-
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Benign:2
Mar 03, 2015
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Aug 30, 2024
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Inborn genetic diseases Benign:1
Jan 28, 2015
Ambry Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Familial Mediterranean fever, autosomal dominant Benign:1
Jul 16, 2020
Al Jalila Children’s Genomics Center, Al Jalila Childrens Speciality Hospital
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Autoinflammatory syndrome Benign:1
Feb 08, 2022
Genome Diagnostics Laboratory, The Hospital for Sick Children
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.89
CADD
Benign
0.69
DANN
Benign
0.63

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.

Other links and lift over

dbSNP: rs2234939; hg19: chr16-3293369; COSMIC: COSV54825485; COSMIC: COSV54825485; API