NM_001018115.3:c.2495-4T>G

Variant names:

• chr3-10072867-T-G
• rs1553612428
• NM_001018115.3:c.2495-4T>G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Moderate BP6_Moderate

The NM_001018115.3(FANCD2):​c.2495-4T>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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 Likely benign (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 7.2e-7 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: FANCD2 NM_001018115.3 splice_region, intron
• Scores: Splicing: ADA: 0.005872
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 2.63
• 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: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.38).
• BP6: Variant 3-10072867-T-G is Benign according to our data. Variant chr3-10072867-T-G is described in ClinVar as Likely_benign. ClinVar VariationId is 456352.Status of the report is criteria_provided_single_submitter, 1 stars.

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

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FANCD2	NM_001018115.3	MANE Select	c.2495-4T>G		splice_region intron	N/A	NP_001018125.1
	FANCD2	NM_033084.6		c.2495-4T>G		splice_region intron	N/A	NP_149075.2
	FANCD2	NM_001374254.1		c.2495-4T>G		splice_region intron	N/A	NP_001361183.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FANCD2	ENST00000675286.1	MANE Select	c.2495-4T>G		splice_region intron	N/A	ENSP00000502379.1
	FANCD2	ENST00000287647.7	TSL:1	c.2495-4T>G		splice_region intron	N/A	ENSP00000287647.3
	FANCD2	ENST00000419585.5	TSL:1	c.2495-4T>G		splice_region intron	N/A	ENSP00000398754.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 7.24e-7 AC: 1 AN: 1381950 Hom.: 0 Cov.: 25 AF XY: 0.00000144 AC XY: 1 AN XY: 692172

African (AFR) AF: 0.00 AC: 0 AN: 31814

American (AMR) AF: 0.00 AC: 0 AN: 44636

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25644

East Asian (EAS) AF: 0.00 AC: 0 AN: 39246

South Asian (SAS) AF: 0.00 AC: 0 AN: 84614

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53386

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4348

European-Non Finnish (NFE) AF: 9.61e-7 AC: 1 AN: 1040530

Other (OTH) AF: 0.00 AC: 0 AN: 57732

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

Fanconi anemia Benign:1

May 08, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.38
CADD	Benign	11
DANN	Benign	0.79
PhyloP100		2.6

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.0059
dbscSNV1_RF	Benign	0.18
SpliceAI score (max)		0.030		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: rs1553612428; hg19: chr3-10114551;