rs8017226

Positions:

• chr14-45175424-T-C

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_Strong BP6_Very_Strong BP7 BA1

The NM_020937.4(FANCM):​c.2670T>C​(p.Phe890Phe) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00542 in 1,584,180 control chromosomes in the GnomAD database, including 435 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.029 (225 hom., cov: 32)
  • Exomes 𝑓: 0.0029 (210 hom.)
• Consequence: FANCM NM_020937.4 synonymous
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:6
• Conservation: PhyloP100: 0.327

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 (HGNC:):

ACMG classification

Verdict is Benign. Variant got -21 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).
• BP6: Variant 14-45175424-T-C is Benign according to our data. Variant chr14-45175424-T-C is described in ClinVar as [Benign]. Clinvar id is 313207.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr14-45175424-T-C is described in Lovd as [Benign].
• BP7: Synonymous conserved (PhyloP=0.327 with no splicing effect.
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0982 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FANCM	NM_020937.4	c.2670T>C	p.Phe890Phe	synonymous_variant	14/23	ENST00000267430.10	NP_065988.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FANCM	ENST00000267430.10	c.2670T>C	p.Phe890Phe	synonymous_variant	14/23	1	NM_020937.4	ENSP00000267430.5

Frequencies

GnomAD3 genomes AF: 0.0288 AC: 4381 AN: 152146 Hom.: 228 Cov.: 32

Gnomad AFR AF: 0.101

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00864

Gnomad ASJ AF: 0.00288

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000414

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00633

Gnomad NFE AF: 0.000323

Gnomad OTH AF: 0.0177

GnomAD3 exomes AF: 0.00790 AC: 1825 AN: 231040 Hom.: 87 AF XY: 0.00593 AC XY: 741 AN XY: 125006

Gnomad AFR exome AF: 0.102

Gnomad AMR exome AF: 0.00573

Gnomad ASJ exome AF: 0.00240

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000777

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000148

Gnomad OTH exome AF: 0.00363

GnomAD4 exome AF: 0.00293 AC: 4200 AN: 1431918 Hom.: 210 Cov.: 30 AF XY: 0.00256 AC XY: 1823 AN XY: 711120

Gnomad4 AFR exome AF: 0.105

Gnomad4 AMR exome AF: 0.00648

Gnomad4 ASJ exome AF: 0.00192

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000619

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.000133

Gnomad4 OTH exome AF: 0.00658

GnomAD4 genome AF: 0.0288 AC: 4387 AN: 152262 Hom.: 225 Cov.: 32 AF XY: 0.0279 AC XY: 2078 AN XY: 74474

Gnomad4 AFR AF: 0.101

Gnomad4 AMR AF: 0.00857

Gnomad4 ASJ AF: 0.00288

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000415

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000324

Gnomad4 OTH AF: 0.0175

Alfa AF: 0.00520 Hom.: 34

Bravo AF: 0.0322

Asia WGS AF: 0.00463 AC: 16 AN: 3472

ClinVar

Significance: Benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:2

Benign, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Apr 04, 2017	- -
Benign, criteria provided, single submitter	clinical testing	Quest Diagnostics Nichols Institute San Juan Capistrano	May 31, 2021	- -

not provided Benign:2

Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Mar 20, 2019	- -

Premature ovarian failure 15 Benign:1

Benign, criteria provided, single submitter

clinical testing

KCCC/NGS Laboratory, Kuwait Cancer Control Center

Jul 07, 2023

- -

Fanconi anemia Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 29, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	1.2
DANN	Benign	0.63

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

Other links and lift over

dbSNP: rs8017226; hg19: chr14-45644627; COSMIC: COSV104566901; COSMIC: COSV104566901;