2-70777846-C-T

Position:

• chr2-70777846-C-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_Strong BP6_Very_Strong BS1 BS2

The NM_001004311.3(FIGLA):​c.610-175G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0117 in 152,236 control chromosomes in the GnomAD database, including 13 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

• Frequency: Genomes: 𝑓 0.012 (13 hom., cov: 33)
• Consequence: FIGLA NM_001004311.3 intron
• Clinical Significance: Likely benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: -0.416

Genes affected

FIGLA (HGNC:24669): (folliculogenesis specific bHLH transcription factor) This gene encodes a protein that functions in postnatal oocyte-specific gene expression. The protein is a basic helix-loop-helix transcription factor that regulates multiple oocyte-specific genes, including genes involved in folliculogenesis and those that encode the zona pellucida. Mutations in this gene cause premature ovarian failure type 6. [provided by RefSeq, Sep 2009]

ACMG classification

Verdict is Benign. Variant got -20 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.85).
• BP6: Variant 2-70777846-C-T is Benign according to our data. Variant chr2-70777846-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 1223176.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BS1: Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0117 (1778/152236) while in subpopulation NFE AF= 0.0177 (1207/68022). AF 95% confidence interval is 0.0169. There are 13 homozygotes in gnomad4. There are 874 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 1778 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FIGLA	NM_001004311.3	c.610-175G>A		intron_variant		ENST00000332372.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FIGLA	ENST00000332372.6	c.610-175G>A		intron_variant		1	NM_001004311.3	P1

Frequencies

GnomAD3 genomes AF: 0.0117 AC: 1777 AN: 152118 Hom.: 13 Cov.: 33

Gnomad AFR AF: 0.00353

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0145

Gnomad ASJ AF: 0.0199

Gnomad EAS AF: 0.000192

Gnomad SAS AF: 0.00788

Gnomad FIN AF: 0.00575

Gnomad MID AF: 0.0127

Gnomad NFE AF: 0.0177

Gnomad OTH AF: 0.0144

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

GnomAD4 genome AF: 0.0117 AC: 1778 AN: 152236 Hom.: 13 Cov.: 33 AF XY: 0.0117 AC XY: 874 AN XY: 74434

Gnomad4 AFR AF: 0.00354

Gnomad4 AMR AF: 0.0144

Gnomad4 ASJ AF: 0.0199

Gnomad4 EAS AF: 0.000193

Gnomad4 SAS AF: 0.00788

Gnomad4 FIN AF: 0.00575

Gnomad4 NFE AF: 0.0177

Gnomad4 OTH AF: 0.0142

Alfa AF: 0.0125 Hom.: 1

Bravo AF: 0.0117

Asia WGS AF: 0.00346 AC: 12 AN: 3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:2

Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Apr 25, 2020	- -
Likely benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.85
CADD	Benign	0.68
DANN	Benign	0.18

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: rs114601182; hg19: chr2-71004978;