rs762904548

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_018062.4(FANCL):​c.706A>G​(p.Ile236Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000219 in 1,600,368 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 Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

FANCL
NM_018062.4 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 0.230
Variant links:
Genes affected
FANCL (HGNC:20748): (FA complementation group L) This gene encodes a ubiquitin ligase that is a member of the Fanconi anemia complementation group (FANC). Members of this group are related by their assembly into a common nuclear protein complex rather than by sequence similarity. This gene encodes the protein for complementation group L that mediates monoubiquitination of FANCD2 as well as FANCI. Fanconi anemia is a genetically heterogeneous recessive disorder characterized by cytogenetic instability, hypersensitivity to DNA crosslinking agents, increased chromosomal breakage, and defective DNA repair. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2018]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.025622606).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FANCLNM_018062.4 linkc.706A>G p.Ile236Val missense_variant Exon 9 of 14 ENST00000233741.9 NP_060532.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FANCLENST00000233741.9 linkc.706A>G p.Ile236Val missense_variant Exon 9 of 14 1 NM_018062.4 ENSP00000233741.5 Q9NW38-1

Frequencies

GnomAD3 genomes
AF:
0.000105
AC:
16
AN:
151914
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000386
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000200
AC:
5
AN:
249932
Hom.:
0
AF XY:
0.0000296
AC XY:
4
AN XY:
135160
show subpopulations
Gnomad AFR exome
AF:
0.000248
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000886
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000131
AC:
19
AN:
1448454
Hom.:
0
Cov.:
28
AF XY:
0.00000970
AC XY:
7
AN XY:
721620
show subpopulations
Gnomad4 AFR exome
AF:
0.000271
Gnomad4 AMR exome
AF:
0.0000673
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:
0.00000364
Gnomad4 OTH exome
AF:
0.0000500
GnomAD4 genome
AF:
0.000105
AC:
16
AN:
151914
Hom.:
0
Cov.:
32
AF XY:
0.000121
AC XY:
9
AN XY:
74202
show subpopulations
Gnomad4 AFR
AF:
0.000386
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000988
Hom.:
0
Bravo
AF:
0.000102
ExAC
AF:
0.0000247
AC:
3

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Fanconi anemia Uncertain:2
Nov 30, 2021
Sema4, Sema4
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: curation

- -

Jan 06, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces isoleucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 236 of the FANCL protein (p.Ile236Val). This variant is present in population databases (rs762904548, gnomAD 0.03%). This variant has not been reported in the literature in individuals affected with FANCL-related conditions. ClinVar contains an entry for this variant (Variation ID: 219754). 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 FANCL 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. -

Inborn genetic diseases Uncertain:1
Jan 23, 2024
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.706A>G (p.I236V) alteration is located in exon 9 (coding exon 9) of the FANCL gene. This alteration results from a A to G substitution at nucleotide position 706, causing the isoleucine (I) at amino acid position 236 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Fanconi anemia complementation group L Uncertain:1
Jun 21, 2024
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.064
BayesDel_addAF
Benign
-0.42
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
10
DANN
Benign
0.82
DEOGEN2
Benign
0.095
T;.;T;T;.;.
Eigen
Benign
-0.95
Eigen_PC
Benign
-0.79
FATHMM_MKL
Benign
0.38
N
LIST_S2
Benign
0.85
T;T;D;D;D;D
M_CAP
Benign
0.0074
T
MetaRNN
Benign
0.026
T;T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.71
N;.;.;.;.;.
PrimateAI
Benign
0.32
T
PROVEAN
Benign
-0.26
N;N;N;N;N;N
REVEL
Benign
0.062
Sift
Benign
0.50
T;T;T;T;T;T
Sift4G
Benign
0.63
T;T;T;.;.;.
Polyphen
0.0010
B;B;.;B;.;.
Vest4
0.21
MVP
0.12
MPC
0.0094
ClinPred
0.020
T
GERP RS
3.2
Varity_R
0.062
gMVP
0.26

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: rs762904548; hg19: chr2-58390638; API