rs145057187

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The NM_022725.4(FANCF):​c.241G>T​(p.Ala81Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000504 in 1,613,994 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00047 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00051 ( 0 hom. )

Consequence

FANCF
NM_022725.4 missense

Scores

19

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:6B:2

Conservation

PhyloP100: -0.558
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]
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.0058292747).
BP6
Variant 11-22625570-C-A is Benign according to our data. Variant chr11-22625570-C-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 241437.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=6}.
BS1
Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.000473 (72/152352) while in subpopulation AMR AF= 0.00248 (38/15314). AF 95% confidence interval is 0.00186. There are 0 homozygotes in gnomad4. There are 35 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FANCFNM_022725.4 linkc.241G>T p.Ala81Ser missense_variant Exon 1 of 1 ENST00000327470.6 NP_073562.1 Q9NPI8A3KME0

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FANCFENST00000327470.6 linkc.241G>T p.Ala81Ser missense_variant Exon 1 of 1 6 NM_022725.4 ENSP00000330875.3 Q9NPI8
GAS2ENST00000648096.1 linkn.62C>A non_coding_transcript_exon_variant Exon 1 of 1
GAS2ENST00000528582.5 linkc.-264C>A upstream_gene_variant 3 ENSP00000432584.1 E9PQ74

Frequencies

GnomAD3 genomes
AF:
0.000473
AC:
72
AN:
152234
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00248
Gnomad ASJ
AF:
0.000576
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000376
AC:
94
AN:
250252
Hom.:
1
AF XY:
0.000383
AC XY:
52
AN XY:
135598
show subpopulations
Gnomad AFR exome
AF:
0.000124
Gnomad AMR exome
AF:
0.000318
Gnomad ASJ exome
AF:
0.00219
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.000185
Gnomad NFE exome
AF:
0.000470
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.000508
AC:
742
AN:
1461642
Hom.:
0
Cov.:
32
AF XY:
0.000506
AC XY:
368
AN XY:
727134
show subpopulations
Gnomad4 AFR exome
AF:
0.000120
Gnomad4 AMR exome
AF:
0.000335
Gnomad4 ASJ exome
AF:
0.00153
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.0000752
Gnomad4 NFE exome
AF:
0.000569
Gnomad4 OTH exome
AF:
0.000729
GnomAD4 genome
AF:
0.000473
AC:
72
AN:
152352
Hom.:
0
Cov.:
33
AF XY:
0.000470
AC XY:
35
AN XY:
74496
show subpopulations
Gnomad4 AFR
AF:
0.0000240
Gnomad4 AMR
AF:
0.00248
Gnomad4 ASJ
AF:
0.000576
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000355
Hom.:
0
Bravo
AF:
0.000499
TwinsUK
AF:
0.00108
AC:
4
ALSPAC
AF:
0.000778
AC:
3
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.000437
AC:
53
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.000491
EpiControl
AF:
0.000474

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:6Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Fanconi anemia complementation group F Uncertain:3
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Dec 21, 2022
Center for Genomics, Ann and Robert H. Lurie Children's Hospital of Chicago
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant has been reported in the literature in 1 individual with bone marrow failure (Arias-Salgado 2019 PMID: 30995915). This variant is present in the Genome Aggregation Database (Highest reported MAF: 0.2% [22/10350], including 1 homozygote; https://gnomad.broadinstitute.org/variant/11-22647116-C-A?dataset=gnomad_r2_1), and in ClinVar (Variation ID: 241437). Evolutionary conservation and computational prediction tools strongly suggest that this variant may not impact the protein. In summary, data on this variant is insufficient for disease classification. Therefore, the clinical significance of this variant is uncertain. -

May 08, 2024
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Fanconi anemia Uncertain:2
Feb 11, 2022
Sema4, Sema4
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: curation

- -

Feb 02, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 81 of the FANCF protein (p.Ala81Ser). This variant is present in population databases (rs145057187, gnomAD 0.2%). This missense change has been observed in individual(s) with bone marrow failure and shortened telomeres (PMID: 30995915). ClinVar contains an entry for this variant (Variation ID: 241437). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt FANCF protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

not specified Uncertain:1
Mar 10, 2020
Genetic Services Laboratory, University of Chicago
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

DNA sequence analysis of the FANCF gene demonstrated a sequence change, c.241G>T, in exon 1 that results in an amino acid change, p.Ala81Ser. This sequence change has been described in the gnomAD database with a frequency of 0.21% in the Ashkenazi Jewish sub-population (dbSNP rs145057187). The p.Ala81Ser change has been identified in one individual with bone marrow failure (PMID: 30995915). The p.Ala81Ser change affects a poorly conserved amino acid residue located in a domain of the FANCF protein that is not known to be functional. The p.Ala81Ser substitution appears to be benign using several in-silico pathogenicity prediction tools (SIFT, PolyPhen2, Align GVGD, REVEL). Due to these contrasting evidences and the lack of functional studies, the clinical significance of the p.Ala81Ser change remains unknown at this time. -

not provided Benign:1
Mar 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

FANCF: BP4, BS1 -

Hereditary cancer Benign:1
Jan 23, 2024
Mendelics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.090
BayesDel_addAF
Benign
-0.59
T
BayesDel_noAF
Benign
-0.75
CADD
Benign
2.7
DANN
Benign
0.77
DEOGEN2
Benign
0.050
T
Eigen
Benign
-1.6
Eigen_PC
Benign
-1.7
FATHMM_MKL
Benign
0.41
N
LIST_S2
Benign
0.45
T
M_CAP
Benign
0.0058
T
MetaRNN
Benign
0.0058
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.69
N
PrimateAI
Benign
0.48
T
PROVEAN
Benign
-0.020
N
REVEL
Benign
0.021
Sift
Benign
0.43
T
Sift4G
Benign
0.62
T
Polyphen
0.0020
B
Vest4
0.053
MVP
0.12
MPC
0.27
ClinPred
0.017
T
GERP RS
-11
Varity_R
0.052
gMVP
0.17

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs145057187; hg19: chr11-22647116; API