11-72136045-G-A

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2 BP4_Strong BP6_Moderate BP7

The NM_000804.4(FOLR3):c.93G>A(p.Thr31=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000613 in 1,613,868 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: 𝑓 0.000099 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000057 (0 hom.)
• Consequence: FOLR3 NM_000804.4 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -1.55

Genes affected

FOLR3 (HGNC:3795): (folate receptor gamma) This gene encodes a member of the folate receptor (FOLR) family of proteins, which have a high affinity for folic acid and for several reduced folic acid derivatives, and mediate delivery of 5-methyltetrahydrofolate to the interior of cells. Expression of this gene may be elevated in ovarian and primary peritoneal carcinoma. This gene is present in a gene cluster on chromosome 11. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2015]

ACMG classification

Verdict is Likely_benign. Variant got -5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.82).
• BP6: Variant 11-72136045-G-A is Benign according to our data. Variant chr11-72136045-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3049026.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=-1.55 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FOLR3	NM_000804.4	c.93G>A	p.Thr31=	synonymous_variant	2/5	ENST00000611028.3
FOLR3	NR_178088.1	n.143G>A		non_coding_transcript_exon_variant	2/5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FOLR3	ENST00000611028.3	c.93G>A	p.Thr31=	synonymous_variant	2/5	1	NM_000804.4	P1
FOLR3	ENST00000612844.4	c.93G>A	p.Thr31=	synonymous_variant, NMD_transcript_variant	2/5	1
FOLR3	ENST00000622388.4	c.93G>A	p.Thr31=	synonymous_variant	3/6	5
FOLR3	ENST00000546166.1	c.87G>A	p.Thr29=	synonymous_variant	1/2	3

Frequencies

GnomAD3 genomes AF: 0.0000986 AC: 15 AN: 152146 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.000242

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.000288

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000588

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000559 AC: 14 AN: 250638 Hom.: 0 AF XY: 0.0000443 AC XY: 6 AN XY: 135552

Gnomad AFR exome AF: 0.000372

Gnomad AMR exome AF: 0.0000289

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000327

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000530

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000575 AC: 84 AN: 1461722 Hom.: 0 Cov.: 31 AF XY: 0.0000536 AC XY: 39 AN XY: 727142

Gnomad4 AFR exome AF: 0.000299

Gnomad4 AMR exome AF: 0.0000671

Gnomad4 ASJ exome AF: 0.0000383

Gnomad4 EAS exome AF: 0.000327

Gnomad4 SAS exome AF: 0.0000232

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000477

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome AF: 0.0000986 AC: 15 AN: 152146 Hom.: 0 Cov.: 32 AF XY: 0.0000673 AC XY: 5 AN XY: 74322

Gnomad4 AFR AF: 0.000242

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.000288

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000588

Gnomad4 OTH AF: 0.00

Alfa AF: 0.000164 Hom.: 0

Bravo AF: 0.000125

EpiCase AF: 0.0000545

EpiControl AF: 0.00

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

FOLR3-related disorder Benign:1

Likely benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Dec 28, 2021

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.82
Cadd	Benign	0.41
Dann	Benign	0.78

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: rs375678047; hg19: chr11-71847091; COSMIC: COSV61530685; COSMIC: COSV61530685;