rs11466030

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_000243.3(MEFV):​c.1587+18C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00151 in 1,612,596 control chromosomes in the GnomAD database, including 33 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0082 ( 20 hom., cov: 32)
Exomes 𝑓: 0.00081 ( 13 hom. )

Consequence

MEFV
NM_000243.3 intron

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:10

Conservation

PhyloP100: -1.68

Publications

0 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)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.93).
BP6
Variant 16-3246998-G-A is Benign according to our data. Variant chr16-3246998-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 445588.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00825 (1256/152292) while in subpopulation AFR AF = 0.0271 (1128/41560). AF 95% confidence interval is 0.0258. There are 20 homozygotes in GnomAd4. There are 602 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 20 AR,AD,SD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MEFVNM_000243.3 linkc.1587+18C>T intron_variant Intron 5 of 9 ENST00000219596.6 NP_000234.1 O15553-2
MEFVNM_001198536.2 linkc.954+18C>T intron_variant Intron 4 of 8 NP_001185465.2 O15553-3D2DTW2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MEFVENST00000219596.6 linkc.1587+18C>T intron_variant Intron 5 of 9 1 NM_000243.3 ENSP00000219596.1 O15553-2

Frequencies

GnomAD3 genomes
AF:
0.00823
AC:
1253
AN:
152174
Hom.:
20
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0271
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00668
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000132
Gnomad OTH
AF:
0.00718
GnomAD2 exomes
AF:
0.00248
AC:
621
AN:
250266
AF XY:
0.00176
show subpopulations
Gnomad AFR exome
AF:
0.0300
Gnomad AMR exome
AF:
0.00307
Gnomad ASJ exome
AF:
0.0000993
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000160
Gnomad OTH exome
AF:
0.000980
GnomAD4 exome
AF:
0.000807
AC:
1178
AN:
1460304
Hom.:
13
Cov.:
30
AF XY:
0.000709
AC XY:
515
AN XY:
726520
show subpopulations
African (AFR)
AF:
0.0248
AC:
830
AN:
33438
American (AMR)
AF:
0.00322
AC:
144
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26130
East Asian (EAS)
AF:
0.000151
AC:
6
AN:
39692
South Asian (SAS)
AF:
0.0000580
AC:
5
AN:
86222
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53380
Middle Eastern (MID)
AF:
0.000521
AC:
3
AN:
5762
European-Non Finnish (NFE)
AF:
0.0000567
AC:
63
AN:
1110612
Other (OTH)
AF:
0.00207
AC:
125
AN:
60348
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
70
141
211
282
352
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
28
56
84
112
140
<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:
0.00825
AC:
1256
AN:
152292
Hom.:
20
Cov.:
32
AF XY:
0.00808
AC XY:
602
AN XY:
74460
show subpopulations
African (AFR)
AF:
0.0271
AC:
1128
AN:
41560
American (AMR)
AF:
0.00667
AC:
102
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.000288
AC:
1
AN:
3472
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000132
AC:
9
AN:
68016
Other (OTH)
AF:
0.00710
AC:
15
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
Heterozygous variant carriers
0
58
116
175
233
291
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.00698
Hom.:
3
Bravo
AF:
0.00894
Asia WGS
AF:
0.0120
AC:
40
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:10
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:5
Jan 16, 2019
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Sep 21, 2016
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant summary: The MEFV c.1587+18C>T variant involves the alteration of a non-conserved intronic nucleotide. One in silico tool predicts a benign outcome for this variant. 5/5 splice prediction tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. This variant was found in 375/120722 control chromosomes (5 homozygotes), predominantly observed in the African subpopulation at a frequency of 0.0311653 (322/10332). This frequency is slightly above the estimated maximal expected allele frequency of a pathogenic MEFV variant (0.0216506), suggesting this is likely a benign polymorphism found primarily in the populations of African origin. The variant of interest has not, to our knowledge, been reported in affected individuals via publications and/or reputable databases/clinical diagnostic laboratories; nor evaluated for functional impact by in vivo/vitro studies. Based on high frequency in controls and in silico splicing predictions, this variant was classified as likely benign. -

May 01, 2022
CeGaT Center for Human Genetics Tuebingen
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

MEFV: BS1, BS2 -

Aug 28, 2017
Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Oct 14, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Familial Mediterranean fever Benign:3
Oct 18, 2019
Natera, Inc.
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Jan 28, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Feb 08, 2023
Genome-Nilou Lab
Significance:Likely benign
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
BayesDel_noAF
Benign
-0.93
CADD
Benign
0.072
DANN
Benign
0.36
PhyloP100
-1.7
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs11466030; hg19: chr16-3296998; COSMIC: COSV106055104; API