11-22622563-C-T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BS1 BS2

The NM_022725.4(FANCF):c.*2123G>A variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0065 in 178,516 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 Benign (★).

• Frequency:
  • Genomes: 𝑓 0.0074 (12 hom., cov: 33)
  • Exomes 𝑓: 0.0011 (1 hom.)
• Consequence: FANCF NM_022725.4 3_prime_UTR
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -0.599

Genes affected

FANCF (HGNC:3587): (FA complementation group F) The Fanconi anemia complementation group (FANC) currently includes FANCA, FANCB, FANCC, FANCD1 (also called BRCA2), FANCD2, FANCE, FANCF, FANCG, FANCI, FANCJ (also called BRIP1), FANCL, FANCM and FANCN (also called PALB2). The previously defined group FANCH is the same as FANCA. Fanconi anemia is a genetically heterogeneous recessive disorder characterized by cytogenetic instability, hypersensitivity to DNA crosslinking agents, increased chromosomal breakage, and defective DNA repair. The members of the Fanconi anemia complementation group do not share sequence similarity; they are related by their assembly into a common nuclear protein complex. This gene encodes the protein for complementation group F. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.91).
• BP6: Variant 11-22622563-C-T is Benign according to our data. Variant chr11-22622563-C-T is described in ClinVar as [Benign]. Clinvar id is 304172.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00745 (1133/152090) while in subpopulation AFR AF= 0.0258 (1073/41522). AF 95% confidence interval is 0.0246. There are 12 homozygotes in gnomad4. There are 523 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
• BS2: High Homozygotes in GnomAd at 13 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FANCF	NM_022725.4	c.*2123G>A		3_prime_UTR_variant	1/1	ENST00000327470.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FANCF	ENST00000327470.6	c.*2123G>A		3_prime_UTR_variant	1/1		NM_022725.4	P1

Frequencies

GnomAD3 genomes AF: 0.00746 AC: 1133 AN: 151972 Hom.: 13 Cov.: 33

Gnomad AFR AF: 0.0259

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00288

Gnomad ASJ AF: 0.000289

Gnomad EAS AF: 0.000193

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000442

Gnomad OTH AF: 0.00526

GnomAD4 exome AF: 0.00106 AC: 28 AN: 26426 Hom.: 1 Cov.: 0 AF XY: 0.000824 AC XY: 10 AN XY: 12142

Gnomad4 AFR exome AF: 0.0228

Gnomad4 AMR exome AF: 0.00180

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000656

Gnomad4 OTH exome AF: 0.00278

GnomAD4 genome AF: 0.00745 AC: 1133 AN: 152090 Hom.: 12 Cov.: 33 AF XY: 0.00704 AC XY: 523 AN XY: 74342

Gnomad4 AFR AF: 0.0258

Gnomad4 AMR AF: 0.00288

Gnomad4 ASJ AF: 0.000289

Gnomad4 EAS AF: 0.000193

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000442

Gnomad4 OTH AF: 0.00521

Alfa AF: 0.00373 Hom.: 0

Bravo AF: 0.00895

Asia WGS AF: 0.000578 AC: 2 AN: 3472

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

Fanconi anemia complementation group F Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 12, 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. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
Cadd	Benign	0.97
Dann	Benign	0.33

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: rs45625034; hg19: chr11-22644109;