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GeneBe

rs4639950

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_031433.4(MFRP):c.355A>G(p.Ile119Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00283 in 1,613,524 control chromosomes in the GnomAD database, including 119 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.015 ( 67 hom., cov: 32)
Exomes 𝑓: 0.0016 ( 52 hom. )

Consequence

MFRP
NM_031433.4 missense

Scores

15

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -0.0230
Variant links:
Genes affected
MFRP (HGNC:18121): (membrane frizzled-related protein) This gene encodes a member of the frizzled-related protein family. The encoded protein plays an important role in eye development and mutations in this gene have been associated with nanophthalmos, posterior microphthalmia, retinitis pigmentosa, foveoschisis, and optic disc drusen. The protein is encoded by a bicistronic transcript which also encodes C1q and tumor necrosis factor related protein 5 (C1QTNF5). [provided by RefSeq, Jun 2013]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0026126802).
BP6
Variant 11-119345845-T-C is Benign according to our data. Variant chr11-119345845-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 197357.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAdExome4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0525 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MFRPNM_031433.4 linkuse as main transcriptc.355A>G p.Ile119Val missense_variant 4/15 ENST00000619721.6
C1QTNF5NM_015645.5 linkuse as main transcriptc.-2282A>G 5_prime_UTR_variant 4/15

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MFRPENST00000619721.6 linkuse as main transcriptc.355A>G p.Ile119Val missense_variant 4/151 NM_031433.4 P1Q9BY79-1

Frequencies

GnomAD3 genomes
AF:
0.0147
AC:
2233
AN:
151730
Hom.:
66
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0512
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00551
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000416
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000132
Gnomad OTH
AF:
0.0120
GnomAD3 exomes
AF:
0.00405
AC:
1003
AN:
247844
Hom.:
33
AF XY:
0.00284
AC XY:
382
AN XY:
134428
show subpopulations
Gnomad AFR exome
AF:
0.0548
Gnomad AMR exome
AF:
0.00263
Gnomad ASJ exome
AF:
0.0000998
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000229
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000724
Gnomad OTH exome
AF:
0.00214
GnomAD4 exome
AF:
0.00159
AC:
2328
AN:
1461676
Hom.:
52
Cov.:
36
AF XY:
0.00138
AC XY:
1002
AN XY:
727118
show subpopulations
Gnomad4 AFR exome
AF:
0.0546
Gnomad4 AMR exome
AF:
0.00306
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000531
Gnomad4 OTH exome
AF:
0.00440
GnomAD4 genome
AF:
0.0147
AC:
2238
AN:
151848
Hom.:
67
Cov.:
32
AF XY:
0.0147
AC XY:
1091
AN XY:
74234
show subpopulations
Gnomad4 AFR
AF:
0.0512
Gnomad4 AMR
AF:
0.00550
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000208
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000132
Gnomad4 OTH
AF:
0.0119
Alfa
AF:
0.00336
Hom.:
15
Bravo
AF:
0.0171
ESP6500AA
AF:
0.0480
AC:
211
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.00493
AC:
599
Asia WGS
AF:
0.00491
AC:
18
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.000119

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Isolated microphthalmia 5 Benign:2
Benign, criteria provided, single submitterclinical testingInvitaeJan 26, 2024- -
Likely benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Feb 23, 2015- -
Nanophthalmos 2;C1970236:Isolated microphthalmia 5 Benign:1
Likely benign, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsMar 31, 2022- -
Retinal degeneration Benign:1
Likely benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 14, 2016- -
Late-onset retinal degeneration Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.074
BayesDel_addAF
Benign
-0.59
T
BayesDel_noAF
Benign
-0.58
Cadd
Benign
3.6
Dann
Benign
0.78
DEOGEN2
Benign
0.049
T;.
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.076
N
LIST_S2
Benign
0.32
T;T
MetaRNN
Benign
0.0026
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.34
N;N
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Benign
0.26
T
Sift4G
Benign
0.54
T;T
Polyphen
0.0020
B;.
Vest4
0.11
MVP
0.28
ClinPred
0.0080
T
GERP RS
2.8
Varity_R
0.018
gMVP
0.24

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: rs4639950; hg19: chr11-119216555; COSMIC: COSV64128619; COSMIC: COSV64128619; API