rs104895103

Positions:

• chr16-3254746-T-C
• chr16-3254746-T-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_000243.3(MEFV):​c.322A>G​(p.Ser108Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,468 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S108R) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 34)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: MEFV NM_000243.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.146

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]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.047293097).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MEFV	NM_000243.3	c.322A>G	p.Ser108Gly	missense_variant	2/10	ENST00000219596.6
MEFV	NM_001198536.2	c.277+1565A>G		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MEFV	ENST00000219596.6	c.322A>G	p.Ser108Gly	missense_variant	2/10	1	NM_000243.3	P3

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD3 exomes AF: 0.00000809 AC: 2 AN: 247174 Hom.: 0 AF XY: 0.00000742 AC XY: 1 AN XY: 134744

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: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000180

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1460468 Hom.: 0 Cov.: 64 AF XY: 0.00000138 AC XY: 1 AN XY: 726570

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 34

ExAC AF: 0.0000165 AC: 2

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.060
BayesDel_addAF	Benign	-0.20	T
BayesDel_noAF	Benign	-0.50
CADD	Benign	1.5
DANN	Benign	0.70
DEOGEN2	Benign	0.29	T
Eigen	Benign	-1.4
Eigen_PC	Benign	-1.5
FATHMM_MKL	Benign	0.023	N
LIST_S2	Benign	0.51	T
M_CAP	Benign	0.011	T
MetaRNN	Benign	0.047	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.55	N
MutationTaster	Benign	1.0	N;N;N;N
PrimateAI	Benign	0.22	T
PROVEAN	Benign	-0.89	N
REVEL	Benign	0.046
Sift	Benign	0.55	T
Sift4G	Benign	0.55	T
Polyphen		0.0010	B
Vest4		0.10
MutPred		0.24		Loss of glycosylation at S108 (P = 0.012);
MVP		0.44
MPC		0.10
ClinPred		0.029	T
GERP RS		-1.4
Varity_R		0.042
gMVP		0.17

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

Other links and lift over

dbSNP: rs104895103; hg19: chr16-3304746;