rs976279218

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4BP6

The NM_000243.3(MEFV):c.1898C>T(p.Pro633Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000686 in 1,603,042 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. P633T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

MEFV
NM_000243.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:3

Conservation

PhyloP100: 4.99

Publications

3 publications found

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 Gene-Disease associations (from GenCC):

familial Mediterranean fever
Inheritance: AD, AR, SD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, Myriad Women’s Health, ClinGen
autosomal recessive familial Mediterranean fever
Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
familial Mediterranean fever, autosomal dominant
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)

MEFV links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.40471023).

BP6

Variant 16-3243589-G-A is Benign according to our data. Variant chr16-3243589-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 457998.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MEFV	NM_000243.3 link	c.1898C>T	p.Pro633Leu	missense_variant	Exon 10 of 10	ENST00000219596.6	NP_000234.1	O15553-2
MEFV	NM_001198536.2 link	c.*102C>T		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
MEFV	ENST00000219596.6 link	c.1898C>T	p.Pro633Leu	missense_variant	Exon 10 of 10	1	NM_000243.3	ENSP00000219596.1		O15553-2

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152080

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000246

AC:

AN:

244208

AF XY:

0.0000227

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000895

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000547

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000340

GnomAD4 exome

AF:

0.00000551

AC:

AN:

1450962

Hom.:

Cov.:

AF XY:

0.00000555

AC XY:

AN XY:

720652

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33060

American (AMR)

AF:

0.0000918

AC:

AN:

43564

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25430

East Asian (EAS)

AF:

0.0000253

AC:

AN:

39550

South Asian (SAS)

AF:

0.00

AC:

AN:

85202

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53068

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5702

European-Non Finnish (NFE)

AF:

0.00000181

AC:

AN:

1105566

Other (OTH)

AF:

0.0000167

AC:

AN:

59820

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.556

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152080

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74300

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41388

American (AMR)

AF:

0.0000655

AC:

AN:

15262

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000193

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4818

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68012

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.558

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:

0.0000868

Hom.:

Bravo

AF:

0.0000302

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Familial Mediterranean fever

Uncertain:2Benign:1

Feb 08, 2023

Genome-Nilou Lab

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Aug 12, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 633 of the MEFV protein (p.Pro633Leu). This variant is present in population databases (no rsID available, gnomAD 0.01%). This missense change has been observed in individual(s) with familial Mediterranean fever (PMID: 31803701). ClinVar contains an entry for this variant (Variation ID: 457998). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0". The leucine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. -

Oct 28, 2019

Natera, Inc.

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

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

Uncertain:1

May 20, 2024

Fulgent Genetics, Fulgent Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Acute febrile neutrophilic dermatosis

Benign:1

Feb 08, 2023

Genome-Nilou Lab

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Familial Mediterranean fever, autosomal dominant

Benign:1

Feb 08, 2023

Genome-Nilou Lab

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.36

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.58

D;.;.

Eigen

Benign

0.18

Eigen_PC

Benign

0.019

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.87

D;D;D

M_CAP

Benign

0.029

MetaRNN

Benign

0.40

T;T;T

MetaSVM

Benign

-0.98

MutationAssessor

Uncertain

2.7

M;.;.

PhyloP100

5.0

PrimateAI

Benign

0.36

PROVEAN

Pathogenic

-7.1

D;D;D

REVEL

Benign

0.25

Sift

Uncertain

0.029

D;D;T

Sift4G

Uncertain

0.038

D;D;D

Polyphen

0.99

D;.;.

Vest4

0.28

MutPred

0.62

Loss of disorder (P = 0.0406);.;.;

MVP

0.61

MPC

0.39

ClinPred

0.50

GERP RS

3.2

Varity_R

0.21

gMVP

0.31

Mutation Taster

=8/92

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over