NM_020937.4:c.4563A>C

Variant names:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_020937.4(FANCM):c.4563A>C(p.Glu1521Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00069 in 1,604,676 control chromosomes in the GnomAD database, including 10 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E1521V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0036 ( 5 hom., cov: 32)

Exomes 𝑓: 0.00039 ( 5 hom. )

Consequence

FANCM
NM_020937.4 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.0870

Publications

2 publications found

Variant links:

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):

Fanconi anemia
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: G2P, Orphanet
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
breast cancer
Inheritance: AD Classification: NO_KNOWN Submitted by: Ambry Genetics

FANCM links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.007030189).

BP6

Variant 14-45185264-A-C is Benign according to our data. Variant chr14-45185264-A-C is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 241322.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00356 (542/152312) while in subpopulation AFR AF = 0.0123 (513/41572). AF 95% confidence interval is 0.0115. There are 5 homozygotes in GnomAd4. There are 259 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 5 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FANCM	NM_020937.4 link	c.4563A>C	p.Glu1521Asp	missense_variant	Exon 18 of 23	ENST00000267430.10	NP_065988.1	Q8IYD8-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FANCM	ENST00000267430.10 link	c.4563A>C	p.Glu1521Asp	missense_variant	Exon 18 of 23	1	NM_020937.4	ENSP00000267430.5		Q8IYD8-1

Frequencies

GnomAD3 genomes

AF:

0.00353

AC:

538

AN:

152196

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0123

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00124

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00287

GnomAD2 exomes

AF:

0.00100

AC:

249

AN:

248982

AF XY:

0.000714

show subpopulations

Gnomad AFR exome

AF:

0.0140

Gnomad AMR exome

AF:

0.000553

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000330

GnomAD4 exome

AF:

0.000389

AC:

565

AN:

1452364

Hom.:

Cov.:

AF XY:

0.000307

AC XY:

222

AN XY:

722880

show subpopulations

African (AFR)

AF:

0.0142

AC:

471

AN:

33202

American (AMR)

AF:

0.000695

AC:

AN:

44632

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25994

East Asian (EAS)

AF:

0.00

AC:

AN:

39502

South Asian (SAS)

AF:

0.0000467

AC:

AN:

85594

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53248

Middle Eastern (MID)

AF:

0.000524

AC:

AN:

5728

European-Non Finnish (NFE)

AF:

0.00000272

AC:

AN:

1104486

Other (OTH)

AF:

0.000884

AC:

AN:

59978

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.452

Heterozygous variant carriers

113

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00356

AC:

542

AN:

152312

Hom.:

Cov.:

AF XY:

0.00348

AC XY:

259

AN XY:

74490

show subpopulations

African (AFR)

AF:

0.0123

AC:

513

AN:

41572

American (AMR)

AF:

0.00124

AC:

AN:

15294

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.000207

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00342

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68026

Other (OTH)

AF:

0.00284

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.509

Heterozygous variant carriers

112

140

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00152

Hom.:

Bravo

AF:

0.00402

ESP6500AA

AF:

0.0107

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00128

AC:

155

Asia WGS

AF:

0.00115

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Nov 25, 2020

Genetic Services Laboratory, University of Chicago

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Fanconi anemia

Benign:1

Jan 07, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:1

Sep 08, 2020

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

FANCM-related disorder

Benign:1

Jun 04, 2019

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.44

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.056

T;.;.

Eigen

Benign

-0.65

Eigen_PC

Benign

-0.65

FATHMM_MKL

Benign

0.74

LIST_S2

Benign

0.66

T;T;T

MetaRNN

Benign

0.0070

T;T;T

MetaSVM

Benign

-0.95

MutationAssessor

Uncertain

2.2

M;.;.

PhyloP100

0.087

PrimateAI

Benign

0.31

PROVEAN

Benign

-1.4

N;N;N

REVEL

Benign

0.26

Sift

Benign

0.10

T;T;T

Sift4G

Benign

0.29

T;T;T

Polyphen

0.79

P;.;.

Vest4

0.30

MutPred

0.15

Gain of relative solvent accessibility (P = 0.1571);.;.;

MVP

0.68

MPC

0.17

ClinPred

0.027

GERP RS

0.56

Varity_R

0.065

gMVP

0.10

Mutation Taster

=98/2

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over