rs9298708

Positions:

• chr9-14868314-A-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001379081.2(FREM1):​c.234+430T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0884 in 152,200 control chromosomes in the GnomAD database, including 1,806 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.088 (1806 hom., cov: 32)
• Consequence: FREM1 NM_001379081.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0130

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 -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.87).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.288 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FREM1	NM_001379081.2	c.234+430T>C		intron_variant		ENST00000380880.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FREM1	ENST00000380880.4	c.234+430T>C		intron_variant		5	NM_001379081.2	P1
FREM1	ENST00000380875.7	c.234+430T>C		intron_variant, NMD_transcript_variant		1

Frequencies

GnomAD3 genomes AF: 0.0883 AC: 13423 AN: 152082 Hom.: 1801 Cov.: 32

Gnomad AFR AF: 0.293

Gnomad AMI AF: 0.0186

Gnomad AMR AF: 0.0483

Gnomad ASJ AF: 0.00115

Gnomad EAS AF: 0.00289

Gnomad SAS AF: 0.0263

Gnomad FIN AF: 0.000565

Gnomad MID AF: 0.0253

Gnomad NFE AF: 0.00376

Gnomad OTH AF: 0.0651

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0884 AC: 13453 AN: 152200 Hom.: 1806 Cov.: 32 AF XY: 0.0856 AC XY: 6371 AN XY: 74426

Gnomad4 AFR AF: 0.293

Gnomad4 AMR AF: 0.0485

Gnomad4 ASJ AF: 0.00115

Gnomad4 EAS AF: 0.00290

Gnomad4 SAS AF: 0.0257

Gnomad4 FIN AF: 0.000565

Gnomad4 NFE AF: 0.00376

Gnomad4 OTH AF: 0.0644

Alfa AF: 0.0620 Hom.: 184

Bravo AF: 0.102

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.87
CADD	Benign	3.0
DANN	Benign	0.61

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: rs9298708; hg19: chr9-14868312;