13-38692347-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The ENST00000280481.9(FREM2):​c.5003G>T​(p.Arg1668Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000436 in 1,603,738 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. R1668H) has been classified as Benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

FREM2
ENST00000280481.9 missense

Scores

2
6
8

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.93
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.883

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FREM2NM_207361.6 linkuse as main transcriptc.5003G>T p.Arg1668Leu missense_variant 1/24 ENST00000280481.9 NP_997244.4
FREM2XM_017020554.2 linkuse as main transcriptc.5003G>T p.Arg1668Leu missense_variant 1/3 XP_016876043.1
FREM2XR_941571.3 linkuse as main transcriptn.5271G>T 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.5003G>T p.Arg1668Leu missense_variant 1/241 NM_207361.6 ENSP00000280481 P1Q5SZK8-1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152048
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000410
AC:
1
AN:
244034
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
131768
show subpopulations
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:
0.00000902
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000413
AC:
6
AN:
1451690
Hom.:
0
Cov.:
34
AF XY:
0.00000277
AC XY:
2
AN XY:
721048
show subpopulations
Gnomad4 AFR exome
AF:
0.0000303
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:
0.00000271
Gnomad4 OTH exome
AF:
0.0000334
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152048
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74238
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.18
BayesDel_addAF
Benign
-0.025
T
BayesDel_noAF
Benign
-0.27
CADD
Uncertain
24
DANN
Uncertain
1.0
Eigen
Uncertain
0.43
Eigen_PC
Uncertain
0.43
FATHMM_MKL
Pathogenic
0.97
D
M_CAP
Benign
0.033
D
MetaRNN
Pathogenic
0.88
D
MetaSVM
Benign
-0.60
T
MutationTaster
Benign
1.8e-7
P
PrimateAI
Benign
0.47
T
PROVEAN
Uncertain
-4.4
D
REVEL
Benign
0.19
Sift
Uncertain
0.011
D
Sift4G
Uncertain
0.024
D
Vest4
0.80
MutPred
0.44
Gain of sheet (P = 0.0149);
MVP
0.61
MPC
0.17
ClinPred
0.97
D
GERP RS
4.5
gMVP
0.72

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: rs1868463; hg19: chr13-39266484; API