rs140088149

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_018062.4(FANCL):c.963T>A(p.Asp321Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000297 in 1,611,748 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0016 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00016 ( 1 hom. )

Consequence

FANCL
NM_018062.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: 0.901

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]

FANCL links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.01381591).

BP6

Variant 2-58161579-A-T is Benign according to our data. Variant chr2-58161579-A-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 241253.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Benign=1, Likely_benign=3}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
FANCL	NM_018062.4 linkuse as main transcript	c.963T>A	p.Asp321Glu	missense_variant	12/14	ENST00000233741.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FANCL	ENST00000233741.9 linkuse as main transcript	c.963T>A	p.Asp321Glu	missense_variant	12/14	1	NM_018062.4	P4	Q9NW38-1

Frequencies

GnomAD3 genomes

AF:

0.00159

AC:

241

AN:

151926

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00560

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000394

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:

0.00144

GnomAD3 exomes

AF:

0.000403

AC:

101

AN:

250794

Hom.:

AF XY:

0.000288

AC XY:

AN XY:

135568

show subpopulations

Gnomad AFR exome

AF:

0.00579

Gnomad AMR exome

AF:

0.000174

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:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000160

AC:

233

AN:

1459704

Hom.:

Cov.:

AF XY:

0.000127

AC XY:

AN XY:

726218

show subpopulations

Gnomad4 AFR exome

AF:

0.00587

Gnomad4 AMR exome

AF:

0.000202

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000270

Gnomad4 OTH exome

AF:

0.000398

GnomAD4 genome

AF:

0.00161

AC:

245

AN:

152044

Hom.:

Cov.:

AF XY:

0.00151

AC XY:

112

AN XY:

74340

show subpopulations

Gnomad4 AFR

AF:

0.00568

Gnomad4 AMR

AF:

0.000393

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:

0.00143

Alfa

AF:

0.000355

Hom.:

Bravo

AF:

0.00186

ESP6500AA

AF:

0.00454

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000519

AC:

Asia WGS

AF:

0.000867

AC:

AN:

3476

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:4

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Fanconi anemia

Benign:2

Benign, criteria provided, single submitter	clinical testing	Invitae	Jan 31, 2024	- -
Likely benign, criteria provided, single submitter	curation	Sema4, Sema4	Dec 18, 2020	- -

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Apr 24, 2020

DNA sequence analysis of the FANCL gene demonstrated a sequence change, c.963T>A, in exon 12 that results in an amino acid change, p.Asp321Glu. This sequence change does not appear to have been previously described in patients with FANCL-related disorders and has been described in the gnomAD database with a population frequency of 0.54% in the African subpopulation; however, it has not been observed in homozygous state in any individuals (dbSNP rs140088149). The p.Asp321Glu change affects a highly conserved amino acid residue located in a domain of the FANCL protein that is not known to be functional. In-silico pathogenicity prediction tools (SIFT, PolyPhen2, Align GVGD, REVEL) provide contradictory results for the p.Asp321Glu substitution. Due to these contrasting evidences and the lack of functional studies, the clinical significance of the p.Asp321Glu change remains unknown at this time. -

Fanconi anemia complementation group L

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

KCCC/NGS Laboratory, Kuwait Cancer Control Center

Jul 07, 2023

- -

FANCL-related disorder

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Jun 23, 2021

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.43

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.18

Cadd

Benign

Dann

Uncertain

1.0

DEOGEN2

Benign

0.22

T;D;.;T;T

Eigen

Uncertain

0.36

Eigen_PC

Uncertain

0.31

FATHMM_MKL

Uncertain

0.88

LIST_S2

Benign

0.77

T;T;T;T;T

M_CAP

Benign

0.030

MetaRNN

Benign

0.014

T;T;T;T;T

MetaSVM

Benign

-0.38

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Uncertain

0.56

PROVEAN

Uncertain

-3.2

D;D;D;D;D

REVEL

Uncertain

0.33

Sift

Pathogenic

0.0

D;D;D;D;D

Sift4G

Uncertain

0.0070

D;D;D;D;.

Polyphen

0.99

D;D;D;.;D

Vest4

0.57

MutPred

0.77

.;Gain of helix (P = 0.132);.;.;.;

MVP

0.70

MPC

0.018

ClinPred

0.099

GERP RS

2.3

Varity_R

0.72

gMVP

0.57

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over