rs753223864

Variant names:

• chr3-10046652-C-G
• rs753223864
• NM_001018115.3:c.1207C>G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001018115.3(FANCD2):​c.1207C>G​(p.Leu403Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000684 in 1,461,858 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 51)
  • Exomes 𝑓: 0.0000068 (0 hom.)
• Consequence: FANCD2 NM_001018115.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.59
• Publications: 0 publications found

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]

FANCD2 Gene-Disease associations (from GenCC):

• Fanconi anemia complementation group D2

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae)
• Fanconi anemia

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001018115.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FANCD2	NM_001018115.3	MANE Select	c.1207C>G	p.Leu403Val	missense	Exon 15 of 44	NP_001018125.1	Q9BXW9-2
	FANCD2	NM_033084.6		c.1207C>G	p.Leu403Val	missense	Exon 15 of 43	NP_149075.2
	FANCD2	NM_001374254.1		c.1207C>G	p.Leu403Val	missense	Exon 15 of 42	NP_001361183.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FANCD2	ENST00000675286.1	MANE Select	c.1207C>G	p.Leu403Val	missense	Exon 15 of 44	ENSP00000502379.1	Q9BXW9-2
	FANCD2	ENST00000287647.7	TSL:1	c.1207C>G	p.Leu403Val	missense	Exon 15 of 43	ENSP00000287647.3	Q9BXW9-1
	FANCD2	ENST00000419585.5	TSL:1	c.1207C>G	p.Leu403Val	missense	Exon 15 of 44	ENSP00000398754.1	Q9BXW9-2

Frequencies

GnomAD3 genomes Cov.: 51

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251456 AF XY: 0.00000736

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000879

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000684 AC: 10 AN: 1461858 Hom.: 0 Cov.: 63 AF XY: 0.00000413 AC XY: 3 AN XY: 727228

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39682

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000899 AC: 10 AN: 1112000

Other (OTH) AF: 0.00 AC: 0 AN: 60394

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.00000401483), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 51

ExAC AF: 0.00000824 AC: 1

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Fanconi anemia (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	-0.065	T
BayesDel_noAF	Benign	-0.33
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.16	T
Eigen	Uncertain	0.52
Eigen_PC	Uncertain	0.47
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Benign	0.73	T
M_CAP	Benign	0.071	D
MetaRNN	Uncertain	0.48	T
MetaSVM	Uncertain	0.14	D
MutationAssessor	Uncertain	2.0	M
PhyloP100		1.6
PrimateAI	Benign	0.44	T
PROVEAN	Benign	-2.0	N
REVEL	Benign	0.29
Sift	Uncertain	0.0090	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.44
MutPred		0.41		Loss of helix (P = 0.1299)
MVP		0.80
MPC		0.26
ClinPred		0.65	D
GERP RS		4.7
Varity_R		0.45
gMVP		0.35
Mutation Taster		=52/48	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.10		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs753223864; hg19: chr3-10088336;