13-38689576-GC-GTT

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PVS1PM2

The NM_207361.6(FREM2):​c.2233delinsTT​(p.Pro745PhefsTer21) variant causes a frameshift change. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 32)

Consequence

FREM2
NM_207361.6 frameshift

Scores

Not classified

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.96
Variant links:
Genes affected
FREM2 (HGNC:25396): (FRAS1 related extracellular matrix 2) This gene encodes an integral membrane protein containing numerous CSPG (chondroitin sulfate proteoglycan element) repeats and Calx-beta domains. The encoded protein localizes to the basement membrane, forming a ternary complex that plays a role in epidermal-dermal interactions. This protein is important for the integrity of skin and renal epithelia. Mutations in this gene are associated with Fraser syndrome. [provided by RefSeq, Apr 2014]

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 10 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FREM2NM_207361.6 linkuse as main transcriptc.2233delinsTT p.Pro745PhefsTer21 frameshift_variant 1/24 ENST00000280481.9 NP_997244.4
FREM2XM_017020554.2 linkuse as main transcriptc.2233delinsTT p.Pro745PhefsTer21 frameshift_variant 1/3 XP_016876043.1
FREM2XR_941571.3 linkuse as main transcriptn.2501delinsTT non_coding_transcript_exon_variant 1/8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FREM2ENST00000280481.9 linkuse as main transcriptc.2233delinsTT p.Pro745PhefsTer21 frameshift_variant 1/241 NM_207361.6 ENSP00000280481 P1Q5SZK8-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
37
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

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: rs748342075; hg19: chr13-39263714; API