11-119339297-G-C

Variant names:

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_031433.4(MFRP):c.*1662C>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00215 in 1,603,536 control chromosomes in the GnomAD database, including 100 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0014 ( 5 hom., cov: 32)

Exomes 𝑓: 0.0022 ( 95 hom. )

Consequence

MFRP
NM_031433.4 3_prime_UTR

Scores

Clinical Significance

Benign/Likely benign criteria provided, single submitter B:3

Conservation

PhyloP100: 0.0410

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]

MFRP links:

C1QTNF5 (HGNC:14344): (C1q and TNF related 5) This gene encodes a member of a family of proteins that function as components of basement membranes and may play a role in cell adhesion. Mutations in this gene have been associated with late-onset retinal degeneration. The protein may be encoded by either a bicistronic transcript including sequence from the upstream membrane frizzled-related protein gene (MFRP), or by a monocistronic transcript expressed from an internal promoter. [provided by RefSeq, Jun 2013]

C1QTNF5 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.82).

BP6

Variant 11-119339297-G-C is Benign according to our data. Variant chr11-119339297-G-C is described in ClinVar as [Likely_benign]. Clinvar id is 302923.Status of the report is criteria_provided_single_submitter, 1 stars.

BS1

Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.00139 (212/152284) while in subpopulation SAS AF= 0.0423 (204/4818). AF 95% confidence interval is 0.0376. There are 5 homozygotes in gnomad4. There are 162 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 5 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	Exon rank	MANE	Protein	UniProt
MFRP	NM_031433.4 link	c.*1662C>G	3_prime_UTR_variant	Exon 15 of 15	ENST00000619721.6	NP_113621.1	Q9BY79-1
C1QTNF5	NM_001278431.2 link	c.*34C>G	3_prime_UTR_variant	Exon 3 of 3	ENST00000528368.3	NP_001265360.1	Q9BXJ0A0A024R3F8
C1QTNF5	NM_015645.5 link	c.*34C>G	3_prime_UTR_variant	Exon 15 of 15		NP_056460.1	Q9BXJ0A0A024R3F8

Ensembl

Gene	Transcript	HGVSc	Effect	Exon rank	TSL	MANE	Protein	UniProt
MFRP	ENST00000619721 link	c.*1662C>G	3_prime_UTR_variant	Exon 15 of 15	1	NM_031433.4	ENSP00000481824.1	Q9BY79-1
C1QTNF5	ENST00000528368 link	c.*34C>G	3_prime_UTR_variant	Exon 3 of 3	1	NM_001278431.2	ENSP00000431140.1	Q9BXJ0
C1QTNF5	ENST00000530681 link	c.*34C>G	3_prime_UTR_variant	Exon 2 of 2	1		ENSP00000456533.2	Q9BXJ0
C1QTNF5	ENST00000525657.2 link	n.*73C>G	downstream_gene_variant		2

Frequencies

GnomAD3 genomes

AF:

0.00139

AC:

211

AN:

152166

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000386

Gnomad SAS

AF:

0.0421

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00484

AC:

1165

AN:

240920

Hom.:

AF XY:

0.00645

AC XY:

841

AN XY:

130398

show subpopulations

Gnomad AFR exome

AF:

0.0000620

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0393

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00253

GnomAD4 exome

AF:

0.00223

AC:

3232

AN:

1451252

Hom.:

Cov.:

AF XY:

0.00318

AC XY:

2290

AN XY:

720974

show subpopulations

Gnomad4 AFR exome

AF:

0.0000902

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000505

Gnomad4 SAS exome

AF:

0.0358

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000723

Gnomad4 OTH exome

AF:

0.00277

GnomAD4 genome

AF:

0.00139

AC:

212

AN:

152284

Hom.:

Cov.:

AF XY:

0.00218

AC XY:

162

AN XY:

74470

show subpopulations

Gnomad4 AFR

AF:

0.0000962

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000387

Gnomad4 SAS

AF:

0.0423

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000214

Hom.:

Bravo

AF:

0.000242

Asia WGS

AF:

0.0200

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:3

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Retinal degeneration

Benign:1

Jun 14, 2016

Illumina Laboratory Services, Illumina

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Isolated microphthalmia 5

Benign:1

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This 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. -

Late-onset retinal degeneration

Benign:1

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This 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

BayesDel_noAF

Benign

-0.82

CADD

Benign

5.5

DANN

Benign

0.60

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.

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