chr2-58226721-T-G

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_018062.4(FANCL):c.273+7A>C variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000572 in 1,591,092 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000054 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000057 ( 0 hom. )

Consequence

FANCL
NM_018062.4 splice_region, intron

Scores

Splicing: ADA: 0.00006910

Clinical Significance

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

Conservation

PhyloP100: 0.237

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

Fanconi anemia complementation group L
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, G2P, Laboratory for Molecular Medicine
Fanconi anemia
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

FANCL links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.69).

BP6

Variant 2-58226721-T-G is Benign according to our data. Variant chr2-58226721-T-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 414856.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FANCL	NM_018062.4 link	c.273+7A>C		splice_region_variant, intron_variant	Intron 4 of 13	ENST00000233741.9	NP_060532.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FANCL	ENST00000233741.9 link	c.273+7A>C		splice_region_variant, intron_variant	Intron 4 of 13	1	NM_018062.4	ENSP00000233741.5		Q9NW38-1

Frequencies

GnomAD3 genomes

AF:

0.0000544

AC:

AN:

146990

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.000892

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000102

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000609

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000105

AC:

AN:

248498

AF XY:

0.000149

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000699

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000186

Gnomad NFE exome

AF:

0.000134

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000575

AC:

AN:

1444102

Hom.:

Cov.:

AF XY:

0.0000570

AC XY:

AN XY:

718816

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33286

American (AMR)

AF:

0.00

AC:

AN:

44286

Ashkenazi Jewish (ASJ)

AF:

0.000849

AC:

AN:

25906

East Asian (EAS)

AF:

0.00

AC:

AN:

39344

South Asian (SAS)

AF:

0.00

AC:

AN:

85020

European-Finnish (FIN)

AF:

0.000169

AC:

AN:

53240

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5674

European-Non Finnish (NFE)

AF:

0.0000437

AC:

AN:

1097586

Other (OTH)

AF:

0.0000669

AC:

AN:

59760

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.452

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000544

AC:

AN:

146990

Hom.:

Cov.:

AF XY:

0.0000700

AC XY:

AN XY:

71476

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

40816

American (AMR)

AF:

0.00

AC:

AN:

14628

Ashkenazi Jewish (ASJ)

AF:

0.000892

AC:

AN:

3364

East Asian (EAS)

AF:

0.00

AC:

AN:

4968

South Asian (SAS)

AF:

0.00

AC:

AN:

4524

European-Finnish (FIN)

AF:

0.000102

AC:

AN:

9758

Middle Eastern (MID)

AF:

0.00

AC:

AN:

306

European-Non Finnish (NFE)

AF:

0.0000609

AC:

AN:

65714

Other (OTH)

AF:

0.00

AC:

AN:

2012

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000658

Hom.:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Fanconi anemia complementation group L

Uncertain:1

Jan 12, 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. -

Fanconi anemia

Benign:1

Nov 18, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.69

CADD

Benign

8.9

(source)

DANN

Benign

0.84

PhyloP100

0.24

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000069

dbscSNV1_RF

Benign

0.0

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

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over