Genetic Variant FANCF:p.Arg50Gln (chr11-22625662-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_022725.4(FANCF):c.149G>A(p.Arg50Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,644 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R50W) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

FANCF
NM_022725.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.336

Publications

0 publications found

Variant links:

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]

FANCF links:

GAS2 (HGNC:4167): (growth arrest specific 2) The protein encoded by this gene is a caspase-3 substrate that plays a role in regulating microfilament and cell shape changes during apoptosis. It can also modulate cell susceptibility to p53-dependent apoptosis by inhibiting calpain activity. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2017]

GAS2 Gene-Disease associations (from GenCC):

hearing loss disorder
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
hearing loss, autosomal recessive 125
Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

GAS2 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.1511732).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FANCF	NM_022725.4 link	c.149G>A	p.Arg50Gln	missense_variant	Exon 1 of 1	ENST00000327470.6	NP_073562.1	Q9NPI8A3KME0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
FANCF	ENST00000327470.6 link	c.149G>A	p.Arg50Gln	missense_variant	Exon 1 of 1	6	NM_022725.4	ENSP00000330875.3	Q9NPI8
GAS2	ENST00000528582.5 link	c.-172C>T		5_prime_UTR_premature_start_codon_gain_variant	Exon 1 of 6	3		ENSP00000432584.1	E9PQ74
GAS2	ENST00000648096.1 link	n.154C>T		non_coding_transcript_exon_variant	Exon 1 of 1
GAS2	ENST00000528582.5 link	c.-172C>T		5_prime_UTR_variant	Exon 1 of 6	3		ENSP00000432584.1	E9PQ74

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461644

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727156

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33474

American (AMR)

AF:

0.0000224

AC:

AN:

44708

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26108

East Asian (EAS)

AF:

0.00

AC:

AN:

39692

South Asian (SAS)

AF:

0.00

AC:

AN:

86250

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53316

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111940

Other (OTH)

AF:

0.00

AC:

AN:

60388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.097

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.64

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.094

Eigen

Benign

-0.17

Eigen_PC

Benign

-0.29

FATHMM_MKL

Benign

0.45

LIST_S2

Benign

0.59

M_CAP

Benign

0.017

MetaRNN

Benign

0.15

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.8

PhyloP100

0.34

PrimateAI

Benign

0.36

PROVEAN

Benign

-1.0

REVEL

Benign

0.039

Sift

Benign

0.50

Sift4G

Benign

0.23

Polyphen

0.99

Vest4

0.10

MutPred

0.21

Loss of catalytic residue at R50 (P = 0.0849);

MVP

0.55

MPC

0.34

ClinPred

0.66

GERP RS

3.5

PromoterAI

-0.064

Neutral

(source)

Varity_R

0.094

gMVP

0.066

Mutation Taster

=97/3

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over