14-45175084-A-G

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_020937.4(FANCM):c.2330A>G(p.Tyr777Cys) variant causes a missense change. The variant allele was found at a frequency of 0.0000467 in 1,607,634 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Y777S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000044 ( 0 hom. )

Consequence

FANCM
NM_020937.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:3

Conservation

PhyloP100: 6.08

Publications

3 publications found

Variant links:

COSMIC-nc: COSV57496856

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 -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.016500056).

BP6

Variant 14-45175084-A-G is Benign according to our data. Variant chr14-45175084-A-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 456259.

BS1

Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.0000723 (11/152198) while in subpopulation EAS AF = 0.00173 (9/5192). AF 95% confidence interval is 0.000904. There are 0 homozygotes in GnomAd4. There are 6 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FANCM	NM_020937.4 link	c.2330A>G	p.Tyr777Cys	missense_variant	Exon 14 of 23	ENST00000267430.10	NP_065988.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FANCM	ENST00000267430.10 link	c.2330A>G	p.Tyr777Cys	missense_variant	Exon 14 of 23	1	NM_020937.4	ENSP00000267430.5

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152080

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00173

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000216

AC:

AN:

249858

AF XY:

0.000178

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000291

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00278

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000886

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.0000440

AC:

AN:

1455436

Hom.:

Cov.:

AF XY:

0.0000387

AC XY:

AN XY:

724406

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33328

American (AMR)

AF:

0.0000224

AC:

AN:

44628

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26054

East Asian (EAS)

AF:

0.00134

AC:

AN:

39470

South Asian (SAS)

AF:

0.0000117

AC:

AN:

85830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53240

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5750

European-Non Finnish (NFE)

AF:

0.00000181

AC:

AN:

1106996

Other (OTH)

AF:

0.000116

AC:

AN:

60140

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.431

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

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

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152198

Hom.:

Cov.:

AF XY:

0.0000806

AC XY:

AN XY:

74430

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41532

American (AMR)

AF:

0.000131

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00173

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10596

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67990

Other (OTH)

AF:

0.00

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

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:

0.0000400

Hom.:

Bravo

AF:

0.0000831

ExAC

AF:

0.000173

AC:

Asia WGS

AF:

0.00145

AC:

AN:

3470

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2Benign:1

Aug 08, 2022

Quest Diagnostics Nichols Institute San Juan Capistrano

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Mar 05, 2025

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 33471991) -

Nov 01, 2019

CeGaT Center for Human Genetics Tuebingen

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Fanconi anemia

Benign:1

Jan 30, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

FANCM-related disorder

Benign:1

Feb 28, 2023

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as likely 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

Uncertain

0.36

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.12

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.35

T;.;.

Eigen

Uncertain

0.56

Eigen_PC

Uncertain

0.55

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.93

D;D;D

M_CAP

Benign

0.024

MetaRNN

Benign

0.017

T;T;T

MetaSVM

Benign

-0.60

MutationAssessor

Uncertain

2.2

M;.;.

PhyloP100

6.1

PrimateAI

Uncertain

0.57

PROVEAN

Pathogenic

-7.0

D;D;D

REVEL

Benign

0.28

Sift

Pathogenic

0.0

D;D;D

Sift4G

Pathogenic

0.0010

D;D;D

Polyphen

0.96

D;.;.

Vest4

0.77

MVP

0.73

MPC

0.52

ClinPred

0.18

GERP RS

5.1

Varity_R

0.83

gMVP

0.61

Mutation Taster

=37/63

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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