14-45159076-GTT-GT

Variant names:

• chr14-45159076-GT-G
• rs875989813
• NM_020937.4:c.1397-15delT

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP6_Moderate

The NM_020937.4(FANCM):​c.1397-15delT variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: FANCM NM_020937.4 intron
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.514
• Publications: 0 publications found

Genes affected

FANCM (HGNC:23168): (FA complementation group M) 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 M. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2015]

FANCM Gene-Disease associations (from GenCC):

• FANCM Fanconi-like genomic instability disorder

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• Fanconi anemia

  Inheritance: AR Classification: STRONG, SUPPORTIVE, NO_KNOWN Submitted by: G2P, Orphanet, ClinGen
• spermatogenic failure 28

  Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
• male infertility with azoospermia or oligozoospermia due to single gene mutation

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• hereditary breast carcinoma

  Inheritance: AD Classification: LIMITED Submitted by: ClinGen
• breast cancer

  Inheritance: AD Classification: NO_KNOWN Submitted by: Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP6: Variant 14-45159076-GT-G is Benign according to our data. Variant chr14-45159076-GT-G is described in ClinVar as Likely_benign. ClinVar VariationId is 191285.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020937.4. 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
	FANCM	NM_020937.4	MANE Select	c.1397-15delT		intron	N/A	NP_065988.1	Q8IYD8-1
	FANCM	NM_001308133.2		c.1319-15delT		intron	N/A	NP_001295062.1	Q8IYD8-3
	FANCM	NM_001308134.2		c.1397-15delT		intron	N/A	NP_001295063.1	Q8IYD8-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FANCM	ENST00000267430.10	TSL:1 MANE Select	c.1397-19delT		intron	N/A	ENSP00000267430.5	Q8IYD8-1
	FANCM	ENST00000542564.6	TSL:1	c.1319-19delT		intron	N/A	ENSP00000442493.2	Q8IYD8-3
	FANCM	ENST00000556250.6	TSL:1	c.1397-19delT		intron	N/A	ENSP00000452033.2	H0YJS3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1314970 Hom.: 0 Cov.: 20 AF XY: 0.00 AC XY: 0 AN XY: 656338

African (AFR) AF: 0.00 AC: 0 AN: 28558

American (AMR) AF: 0.00 AC: 0 AN: 36408

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 24104

East Asian (EAS) AF: 0.00 AC: 0 AN: 35262

South Asian (SAS) AF: 0.00 AC: 0 AN: 73252

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 49024

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4360

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1009458

Other (OTH) AF: 0.00 AC: 0 AN: 54544

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		0.51

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.070		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: rs875989813; hg19: chr14-45628279;