rs113910234

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_022725.4(FANCF):​c.557C>T​(p.Ala186Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00852 in 1,614,164 control chromosomes in the GnomAD database, including 104 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0062 ( 8 hom., cov: 33)
Exomes 𝑓: 0.0088 ( 96 hom. )

Consequence

FANCF
NM_022725.4 missense

Scores

18

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:11O:1

Conservation

PhyloP100: 0.252
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0028169155).
BP6
Variant 11-22625254-G-A is Benign according to our data. Variant chr11-22625254-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 134349.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr11-22625254-G-A is described in Lovd as [Benign].
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.00625 (952/152374) while in subpopulation SAS AF= 0.0153 (74/4834). AF 95% confidence interval is 0.0125. There are 8 homozygotes in gnomad4. There are 440 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 8 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FANCFNM_022725.4 linkc.557C>T p.Ala186Val 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.557C>T p.Ala186Val missense_variant Exon 1 of 1 6 NM_022725.4 ENSP00000330875.3 Q9NPI8

Frequencies

GnomAD3 genomes
AF:
0.00625
AC:
952
AN:
152256
Hom.:
8
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00147
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00477
Gnomad ASJ
AF:
0.00547
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.0153
Gnomad FIN
AF:
0.00386
Gnomad MID
AF:
0.0253
Gnomad NFE
AF:
0.00970
Gnomad OTH
AF:
0.00716
GnomAD3 exomes
AF:
0.00830
AC:
2074
AN:
250008
Hom.:
20
AF XY:
0.00899
AC XY:
1219
AN XY:
135540
show subpopulations
Gnomad AFR exome
AF:
0.00113
Gnomad AMR exome
AF:
0.00495
Gnomad ASJ exome
AF:
0.00339
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.0169
Gnomad FIN exome
AF:
0.00514
Gnomad NFE exome
AF:
0.0102
Gnomad OTH exome
AF:
0.0125
GnomAD4 exome
AF:
0.00876
AC:
12804
AN:
1461790
Hom.:
96
Cov.:
32
AF XY:
0.00925
AC XY:
6726
AN XY:
727182
show subpopulations
Gnomad4 AFR exome
AF:
0.00105
Gnomad4 AMR exome
AF:
0.00487
Gnomad4 ASJ exome
AF:
0.00383
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0167
Gnomad4 FIN exome
AF:
0.00561
Gnomad4 NFE exome
AF:
0.00906
Gnomad4 OTH exome
AF:
0.00856
GnomAD4 genome
AF:
0.00625
AC:
952
AN:
152374
Hom.:
8
Cov.:
33
AF XY:
0.00590
AC XY:
440
AN XY:
74518
show subpopulations
Gnomad4 AFR
AF:
0.00147
Gnomad4 AMR
AF:
0.00477
Gnomad4 ASJ
AF:
0.00547
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.0153
Gnomad4 FIN
AF:
0.00386
Gnomad4 NFE
AF:
0.00972
Gnomad4 OTH
AF:
0.00709
Alfa
AF:
0.00963
Hom.:
14
Bravo
AF:
0.00568
TwinsUK
AF:
0.00836
AC:
31
ALSPAC
AF:
0.00623
AC:
24
ESP6500AA
AF:
0.000454
AC:
2
ESP6500EA
AF:
0.00837
AC:
72
ExAC
AF:
0.00899
AC:
1092
Asia WGS
AF:
0.00606
AC:
21
AN:
3478
EpiCase
AF:
0.0116
EpiControl
AF:
0.0120

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:11Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:3Other:1
Sep 13, 2016
Genetic Services Laboratory, University of Chicago
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Mar 25, 2015
Genomic Diagnostic Laboratory, Division of Genomic Diagnostics, Children's Hospital of Philadelphia
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Sep 19, 2013
ITMI
Significance: not provided
Review Status: no classification provided
Collection Method: reference population

- -

Fanconi anemia complementation group F Benign:2
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance: Benign
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 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. -

Aug 23, 2024
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Benign:2
Mar 31, 2021
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Fanconi anemia Benign:1
Feb 02, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Ovarian cancer Benign:1
Jan 01, 2022
Laboratory of Molecular Epidemiology of Birth Defects, West China Second University Hospital, Sichuan University
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Malignant tumor of breast Benign:1
-
Center of Medical Genetics and Primary Health Care
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Hereditary cancer-predisposing syndrome Benign:1
Nov 27, 2024
Molecular Diagnostics Laboratory, Catalan Institute of Oncology
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

BA1, BS2, BP4_Moderate c.557C>T, located in exon 1 of the FANCF gene, is predicted to result in the substitution of alanine by valine at codon 86, p.(Ala186Val). The variant allele was found in 514/30518 alleles, with a filtering allele frequency of 1.5% at 99% confidence, within the South Asian population in the gnomAD v2.1.1 database (non-cancer data set) (BA1). The SpliceAI algorithm predicts no significant impact on splicing. The REVEL meta-predictor score for this variant (0.041) suggests that it does not affect the protein function according to Pejaver 2022 thresholds (PMID: 36413997) (BP4_Moderate). To our knowledge, neither relevant clinical data nor well-established functional studies have been reported for this variant. This variant has been observed in homozygous state in multiple healthy individuals (BS2). This variant has been reported in the ClinVar database (6x benign, 3x likely benign) and in LOVD (1x benign). Based on currently available information, the variant c.557C>T should be considered a benign variant, according to ACMG/AMP classification guidelines. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.098
BayesDel_addAF
Benign
-0.65
T
BayesDel_noAF
Benign
-0.69
CADD
Benign
9.2
DANN
Benign
0.95
DEOGEN2
Benign
0.071
T
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.43
N
LIST_S2
Benign
0.45
T
MetaRNN
Benign
0.0028
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.34
N
PrimateAI
Benign
0.35
T
PROVEAN
Benign
-1.2
N
REVEL
Benign
0.041
Sift
Benign
0.45
T
Sift4G
Benign
0.19
T
Polyphen
0.040
B
Vest4
0.078
MVP
0.16
MPC
0.25
ClinPred
0.0024
T
GERP RS
1.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.047
gMVP
0.12

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: rs113910234; hg19: chr11-22646800; COSMIC: COSV59417330; COSMIC: COSV59417330; API