rs104895116

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP6

The NM_000243.3(MEFV):c.1060C>T(p.Arg354Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000328 in 1,613,642 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict 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. R354Q) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000031 ( 0 hom. )

Consequence

MEFV
NM_000243.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:6B:2O:1

Conservation

PhyloP100: 0.241

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]

MEFV links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.24017608).

BP6

Variant 16-3249631-G-A is Benign according to our data. Variant chr16-3249631-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 97430.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=5, not_provided=1, Likely_benign=2}. Variant chr16-3249631-G-A is described in Lovd as [Likely_benign].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MEFV	NM_000243.3 linkuse as main transcript	c.1060C>T	p.Arg354Trp	missense_variant	3/10	ENST00000219596.6
MEFV	NM_001198536.2 linkuse as main transcript	c.427C>T	p.Arg143Trp	missense_variant	2/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MEFV	ENST00000219596.6 linkuse as main transcript	c.1060C>T	p.Arg354Trp	missense_variant	3/10	1	NM_000243.3	P3	O15553-2

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000322

AC:

AN:

248384

Hom.:

AF XY:

0.0000446

AC XY:

AN XY:

134638

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 SAS exome

AF:

0.0000328

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000539

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.0000315

AC:

AN:

1461338

Hom.:

Cov.:

AF XY:

0.0000481

AC XY:

AN XY:

726930

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000270

Gnomad4 OTH exome

AF:

0.0000663

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152304

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74482

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000882

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000901

Hom.:

Bravo

AF:

0.0000340

ExAC

AF:

0.0000412

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000178

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:6Benign:2Other:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Familial Mediterranean fever

Uncertain:4Other:1

Uncertain significance, no assertion criteria provided	clinical testing	Natera, Inc.	Sep 16, 2020	- -
not provided, no classification provided	literature only	Unité médicale des maladies autoinflammatoires, CHRU Montpellier	-	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Apr 27, 2017	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. -
Uncertain significance, criteria provided, single submitter	clinical testing	Invitae	Jan 16, 2022	This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 354 of the MEFV protein (p.Arg354Trp). This variant is present in population databases (rs104895116, gnomAD 0.006%). This missense change has been observed in individual(s) with clinical features of familial Mediterranean fever (PMID: 14578331, 29735907, 32441320). ClinVar contains an entry for this variant (Variation ID: 97430). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Uncertain significance, criteria provided, single submitter	clinical testing	Genome-Nilou Lab	Feb 08, 2023	- -

Familial Mediterranean fever;C0085077:Acute febrile neutrophilic dermatosis;C1851347:Familial Mediterranean fever, autosomal dominant

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Jul 08, 2021

- -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Mayo Clinic Laboratories, Mayo Clinic

Feb 24, 2023

BP4, PM2_supporting, PS4_moderate -

Acute febrile neutrophilic dermatosis

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Genome-Nilou Lab

Feb 08, 2023

- -

Familial Mediterranean fever, autosomal dominant

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Genome-Nilou Lab

Feb 08, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.092

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.34

Cadd

Benign

Dann

Uncertain

1.0

DEOGEN2

Uncertain

0.57

D;.;.;.

Eigen

Benign

-0.46

Eigen_PC

Benign

-0.68

FATHMM_MKL

Benign

0.17

LIST_S2

Uncertain

0.91

D;D;D;D

M_CAP

Benign

0.061

MetaRNN

Benign

0.24

T;T;T;T

MetaSVM

Benign

-0.82

MutationAssessor

Benign

1.5

L;.;.;.

MutationTaster

Benign

1.0

N;N;N;N

PrimateAI

Benign

0.24

PROVEAN

Uncertain

-3.2

D;D;D;D

REVEL

Benign

0.18

Sift

Uncertain

0.0040

D;D;T;D

Sift4G

Uncertain

0.0040

D;D;D;D

Polyphen

1.0

D;.;.;.

Vest4

0.23

MutPred

0.32

Loss of helix (P = 0.0196);.;.;.;

MVP

0.82

MPC

0.13

ClinPred

0.56

GERP RS

-1.6

Varity_R

0.055

gMVP

0.39

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

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