rs145762491

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BS1BS2

The NM_001113378.2(FANCI):ā€‹c.2487T>Gā€‹(p.Leu829=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00178 in 1,552,344 control chromosomes in the GnomAD database, including 10 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: š‘“ 0.0016 ( 0 hom., cov: 32)
Exomes š‘“: 0.0018 ( 10 hom. )

Consequence

FANCI
NM_001113378.2 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:9

Conservation

PhyloP100: 0.986
Variant links:
Genes affected
FANCI (HGNC:25568): (FA complementation group I) 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 I. Alternative splicing results in two transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.48).
BP6
Variant 15-89294945-T-G is Benign according to our data. Variant chr15-89294945-T-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 210986.We mark this variant Likely_benign, oryginal submissions are: {Benign=3, Likely_benign=3, Uncertain_significance=1}. Variant chr15-89294945-T-G is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=0.986 with no splicing effect.
BS1
Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.0016 (244/152306) while in subpopulation AMR AF= 0.00255 (39/15290). AF 95% confidence interval is 0.00196. There are 0 homozygotes in gnomad4. There are 122 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 10 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FANCINM_001113378.2 linkuse as main transcriptc.2487T>G p.Leu829= synonymous_variant 24/38 ENST00000310775.12

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FANCIENST00000310775.12 linkuse as main transcriptc.2487T>G p.Leu829= synonymous_variant 24/381 NM_001113378.2 P1Q9NVI1-3

Frequencies

GnomAD3 genomes
AF:
0.00162
AC:
246
AN:
152188
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00255
Gnomad ASJ
AF:
0.00605
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000830
Gnomad FIN
AF:
0.00104
Gnomad MID
AF:
0.0222
Gnomad NFE
AF:
0.00225
Gnomad OTH
AF:
0.00336
GnomAD3 exomes
AF:
0.00210
AC:
333
AN:
158914
Hom.:
3
AF XY:
0.00216
AC XY:
181
AN XY:
83704
show subpopulations
Gnomad AFR exome
AF:
0.000240
Gnomad AMR exome
AF:
0.00234
Gnomad ASJ exome
AF:
0.00386
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00101
Gnomad FIN exome
AF:
0.00105
Gnomad NFE exome
AF:
0.00266
Gnomad OTH exome
AF:
0.00752
GnomAD4 exome
AF:
0.00180
AC:
2517
AN:
1400038
Hom.:
10
Cov.:
31
AF XY:
0.00190
AC XY:
1314
AN XY:
690490
show subpopulations
Gnomad4 AFR exome
AF:
0.000791
Gnomad4 AMR exome
AF:
0.00353
Gnomad4 ASJ exome
AF:
0.00349
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000984
Gnomad4 FIN exome
AF:
0.000827
Gnomad4 NFE exome
AF:
0.00173
Gnomad4 OTH exome
AF:
0.00297
GnomAD4 genome
AF:
0.00160
AC:
244
AN:
152306
Hom.:
0
Cov.:
32
AF XY:
0.00164
AC XY:
122
AN XY:
74472
show subpopulations
Gnomad4 AFR
AF:
0.0000962
Gnomad4 AMR
AF:
0.00255
Gnomad4 ASJ
AF:
0.00605
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000831
Gnomad4 FIN
AF:
0.00104
Gnomad4 NFE
AF:
0.00225
Gnomad4 OTH
AF:
0.00332
Alfa
AF:
0.00215
Hom.:
1
Bravo
AF:
0.00186
Asia WGS
AF:
0.00115
AC:
4
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:9
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Benign:4
Likely benign, no assertion criteria providedclinical testingGenome Diagnostics Laboratory, Amsterdam University Medical Center-- -
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJun 01, 2024FANCI: BP4, BP7 -
Likely benign, no assertion criteria providedclinical testingLaboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)-- -
Likely benign, no assertion criteria providedclinical testingGenome Diagnostics Laboratory, University Medical Center Utrecht-- -
Fanconi anemia complementation group I Uncertain:1Benign:1
Benign, criteria provided, single submitterclinical testingKCCC/NGS Laboratory, Kuwait Cancer Control CenterJul 07, 2023- -
Uncertain significance, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 2018This 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:2
Benign, criteria provided, single submitterclinical testingInvitaeJan 30, 2024- -
Likely benign, criteria provided, single submittercurationSema4, Sema4Jun 30, 2021- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoMay 26, 2021- -
FANCI-related disorder Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesFeb 17, 2020This 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
BayesDel_noAF
Benign
-0.48
CADD
Benign
9.1
DANN
Benign
0.78

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: rs145762491; hg19: chr15-89838176; COSMIC: COSV55522771; COSMIC: COSV55522771; API