ENST00000380875.7:n.*1245delA

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BS1_SupportingBS2

The ENST00000380875.7(FREM1):n.*1245delA variant causes a non coding transcript exon change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00246 in 572,062 control chromosomes in the GnomAD database, including 3 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0020 ( 1 hom., cov: 32)

Exomes 𝑓: 0.0026 ( 2 hom. )

Consequence

FREM1
ENST00000380875.7 non_coding_transcript_exon

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.125

Publications

0 publications found

Variant links:

Genes affected

FREM1 (HGNC:23399): (FRAS1 related extracellular matrix 1) This gene encodes a basement membrane protein that may play a role in craniofacial and renal development. Mutations in this gene have been associated with bifid nose with or without anorectal and renal anomalies. Alternatively spliced transcript variants encoding different isoforms have been described. PubMed ID 19940113 describes one such variant that initiates transcription within a distinct, internal exon; the resulting shorter isoform (named Toll-like/interleukin-1 receptor regulator, TILRR) is suggested to be a co-receptor of the interleukin 1 receptor family and may regulate receptor function and Toll-like receptor/interleukin 1 receptor signal transduction, contributing to the control of inflammatory response activation. [provided by RefSeq, Apr 2011]

FREM1 Gene-Disease associations (from GenCC):

oculotrichoanal syndrome
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet
BNAR syndrome
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet
isolated trigonocephaly
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
renal agenesis, unilateral
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
trigonocephaly 2
Inheritance: AD Classification: LIMITED, NO_KNOWN Submitted by: Ambry Genetics, PanelApp Australia, Labcorp Genetics (formerly Invitae)

FREM1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.00204 (310/152314) while in subpopulation SAS AF = 0.00435 (21/4828). AF 95% confidence interval is 0.00291. There are 1 homozygotes in GnomAd4. There are 152 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High Homozygotes in GnomAdExome4 at 2 AR,AD gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FREM1	NM_001379081.2 link	c.*139delA		3_prime_UTR_variant	Exon 37 of 37	ENST00000380880.4	NP_001366010.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FREM1	ENST00000380880.4 link	c.*139delA		3_prime_UTR_variant	Exon 37 of 37	5	NM_001379081.2	ENSP00000370262.3		Q5H8C1-1

Frequencies

GnomAD3 genomes

AF:

0.00204

AC:

310

AN:

152196

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000627

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000981

Gnomad ASJ

AF:

0.00606

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00435

Gnomad FIN

AF:

0.000377

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.00322

Gnomad OTH

AF:

0.00143

GnomAD4 exome

AF:

0.00262

AC:

1098

AN:

419748

Hom.:

Cov.:

AF XY:

0.00277

AC XY:

599

AN XY:

216588

show subpopulations

African (AFR)

AF:

0.000436

AC:

AN:

11472

American (AMR)

AF:

0.00100

AC:

AN:

14998

Ashkenazi Jewish (ASJ)

AF:

0.00716

AC:

AN:

12848

East Asian (EAS)

AF:

0.00

AC:

AN:

29120

South Asian (SAS)

AF:

0.00370

AC:

106

AN:

28630

European-Finnish (FIN)

AF:

0.000485

AC:

AN:

37098

Middle Eastern (MID)

AF:

0.00646

AC:

AN:

1858

European-Non Finnish (NFE)

AF:

0.00302

AC:

783

AN:

259214

Other (OTH)

AF:

0.00273

AC:

AN:

24510

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.493

Heterozygous variant carriers

100

151

201

251

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00204

AC:

310

AN:

152314

Hom.:

Cov.:

AF XY:

0.00204

AC XY:

152

AN XY:

74478

show subpopulations

African (AFR)

AF:

0.000625

AC:

AN:

41568

American (AMR)

AF:

0.000980

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00606

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00435

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.000377

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00322

AC:

219

AN:

68028

Other (OTH)

AF:

0.00142

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000163

Hom.:

Bravo

AF:

0.00203

Asia WGS

AF:

0.00260

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Oculotrichoanal syndrome

Uncertain:1

Jun 14, 2016

Illumina Laboratory Services, Illumina

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Uncertain:1

Breakthrough Genomics, Breakthrough Genomics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

0.13

Mutation Taster

=100/0

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over