rs61751578

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001018115.3(FANCD2):​c.2803A>C​(p.Ile935Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000235 in 1,613,650 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 0.00027 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00023 ( 0 hom. )

Consequence

FANCD2
NM_001018115.3 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:7

Conservation

PhyloP100: 0.647
Variant links:
Genes affected
FANCD2 (HGNC:3585): (FA complementation group D2) 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 D2. This protein is monoubiquinated in response to DNA damage, resulting in its localization to nuclear foci with other proteins (BRCA1 AND BRCA2) involved in homology-directed DNA repair. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.1059275).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
FANCD2NM_001018115.3 linkc.2803A>C p.Ile935Leu missense_variant Exon 29 of 44 ENST00000675286.1 NP_001018125.1 Q9BXW9-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FANCD2ENST00000675286.1 linkc.2803A>C p.Ile935Leu missense_variant Exon 29 of 44 NM_001018115.3 ENSP00000502379.1 Q9BXW9-2

Frequencies

GnomAD3 genomes
AF:
0.000269
AC:
41
AN:
152170
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000942
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000544
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000239
AC:
60
AN:
251358
Hom.:
0
AF XY:
0.000250
AC XY:
34
AN XY:
135854
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.0000867
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.000475
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000231
AC:
338
AN:
1461480
Hom.:
0
Cov.:
30
AF XY:
0.000242
AC XY:
176
AN XY:
727080
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.000112
Gnomad4 NFE exome
AF:
0.000287
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.000269
AC:
41
AN:
152170
Hom.:
0
Cov.:
32
AF XY:
0.000336
AC XY:
25
AN XY:
74340
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000942
Gnomad4 NFE
AF:
0.000544
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000364
Hom.:
0
Bravo
AF:
0.000185
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000206
AC:
25
EpiCase
AF:
0.000327
EpiControl
AF:
0.000356

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:7
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Fanconi anemia complementation group D2 Uncertain:3
Feb 06, 2024
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

Dec 01, 2020
Baylor Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -

not provided Uncertain:2
Nov 03, 2021
Institute for Clinical Genetics, University Hospital TU Dresden, University Hospital TU Dresden
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jun 01, 2017
CeGaT Center for Human Genetics Tuebingen
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Uncertain:1
Oct 26, 2021
Genetic Services Laboratory, University of Chicago
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

DNA sequence analysis of the FANCD2 gene demonstrated a sequence change, c.2803A>C, in exon 29 that results in an amino acid change, p.Ile935Leu. This sequence change does not appear to have been previously described in individuals with FANCD2-related disorders and has been described in the gnomAD database with a frequency of 0.046% in the European sub-population (dbSNP rs61751578). The p.Ile935Leu change affects a moderately conserved amino acid residue located in a domain of the FANCD2 protein that is not known to be functional. The p.Ile935Leu substitution appears to be benign using several in-silico pathogenicity prediction tools (SIFT, PolyPhen2, Align GVGD, REVEL). Due to these contrasting evidences and the lack of functional studies, the clinical significance of the p.Ile935Leu change remains unknown at this time. -

Fanconi anemia Uncertain:1
Oct 12, 2022
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 leucine, which is neutral and non-polar, at codon 935 of the FANCD2 protein (p.Ile935Leu). This variant is present in population databases (rs61751578, gnomAD 0.05%). This variant has not been reported in the literature in individuals affected with FANCD2-related conditions. ClinVar contains an entry for this variant (Variation ID: 407784). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt FANCD2 protein function. 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.45
CADD
Benign
17
DANN
Benign
0.95
DEOGEN2
Benign
0.094
.;T;T
Eigen
Benign
-0.46
Eigen_PC
Benign
-0.35
FATHMM_MKL
Benign
0.75
D
LIST_S2
Benign
0.84
T;T;.
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.11
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.2
M;M;M
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-1.1
N;N;N
REVEL
Benign
0.035
Sift
Benign
0.20
T;T;T
Sift4G
Benign
0.13
T;T;T
Polyphen
0.20
.;B;B
Vest4
0.25
MVP
0.66
MPC
0.17
ClinPred
0.059
T
GERP RS
2.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.21
gMVP
0.36

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: rs61751578; hg19: chr3-10116301; COSMIC: COSV55049537; COSMIC: COSV55049537; API