9-14737248-T-C

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BA1

The NM_001379081.2(FREM1):c.*148A>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 0.0121 in 567,020 control chromosomes in the GnomAD database, including 351 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.034 (277 hom., cov: 32)
  • Exomes 𝑓: 0.0041 (74 hom.)
• Consequence: FREM1 NM_001379081.2 3_prime_UTR
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: 0.789

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]

ACMG classification

Verdict is Benign. Variant got -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.81).
• BP6: Variant 9-14737248-T-C is Benign according to our data. Variant chr9-14737248-T-C is described in ClinVar as [Benign]. Clinvar id is 366095.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.116 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FREM1	NM_001379081.2	c.*148A>G		3_prime_UTR_variant	37/37	ENST00000380880.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FREM1	ENST00000380880.4	c.*148A>G		3_prime_UTR_variant	37/37	5	NM_001379081.2	P1
FREM1	ENST00000380894.5	c.*148A>G		3_prime_UTR_variant	14/14	1
FREM1	ENST00000380875.7	c.*1254A>G		3_prime_UTR_variant, NMD_transcript_variant	31/31	1

Frequencies

GnomAD3 genomes AF: 0.0340 AC: 5175 AN: 152154 Hom.: 277 Cov.: 32

Gnomad AFR AF: 0.119

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0113

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000414

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00949

Gnomad NFE AF: 0.000382

Gnomad OTH AF: 0.0215

GnomAD4 exome AF: 0.00409 AC: 1698 AN: 414748 Hom.: 74 Cov.: 5 AF XY: 0.00341 AC XY: 731 AN XY: 214528

Gnomad4 AFR exome AF: 0.113

Gnomad4 AMR exome AF: 0.00759

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000670

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.000327

Gnomad4 OTH exome AF: 0.00812

GnomAD4 genome AF: 0.0340 AC: 5170 AN: 152272 Hom.: 277 Cov.: 32 AF XY: 0.0326 AC XY: 2429 AN XY: 74466

Gnomad4 AFR AF: 0.119

Gnomad4 AMR AF: 0.0112

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000382

Gnomad4 OTH AF: 0.0208

Alfa AF: 0.0132 Hom.: 35

Bravo AF: 0.0388

Asia WGS AF: 0.00433 AC: 15 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Oculotrichoanal syndrome Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

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. -

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

May 12, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.81
Cadd	Benign	5.2
Dann	Benign	0.84

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

Other links and lift over

dbSNP: rs11999446; hg19: chr9-14737246;