rs786204205

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PVS1_StrongPM2PP5_Moderate

The NM_004629.2(FANCG):​c.1747G>T​(p.Glu583Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,882 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

FANCG
NM_004629.2 stop_gained

Scores

2
1
4

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1U:1

Conservation

PhyloP100: 0.617
Variant links:
Genes affected
FANCG (HGNC:3588): (FA complementation group G) 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 G. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most 50 bp of the penultimate exon, not predicted to undergo nonsense mediated mRNA decay. There are 4 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 9-35074384-C-A is Pathogenic according to our data. Variant chr9-35074384-C-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 188303.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FANCGNM_004629.2 linkuse as main transcriptc.1747G>T p.Glu583Ter stop_gained 13/14 ENST00000378643.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FANCGENST00000378643.8 linkuse as main transcriptc.1747G>T p.Glu583Ter stop_gained 13/141 NM_004629.2 P2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461882
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727238
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Fanconi anemia Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingInvitaeJun 09, 2023This sequence change creates a premature translational stop signal (p.Glu583*) in the FANCG gene. While this is not anticipated to result in nonsense mediated decay, it is expected to disrupt the last 40 amino acid(s) of the FANCG protein. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. This variant disrupts the the last 40 amino acid residue in FANCG. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 10567393, 10961856). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. ClinVar contains an entry for this variant (Variation ID: 188303). This premature translational stop signal has been observed in individual(s) with Fanconi anemia (PMID: 23613520). This variant is not present in population databases (gnomAD no frequency). -
Fanconi anemia complementation group G Uncertain:1
Uncertain significance, no assertion criteria providedcurationLeiden Open Variation DatabaseSep 29, 2013Curator: Arleen D. Auerbach. Submitter to LOVD: Arleen D. Auerbach. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.62
D
BayesDel_noAF
Pathogenic
0.28
CADD
Pathogenic
36
DANN
Benign
0.97
Eigen
Uncertain
0.37
Eigen_PC
Benign
0.057
FATHMM_MKL
Benign
0.51
D
MutationTaster
Benign
1.0
D
Vest4
0.77
GERP RS
3.3

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.32
Details are displayed if max score is > 0.2
DS_DL_spliceai
0.32
Position offset: -13

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: rs786204205; hg19: chr9-35074381; API