rs143006771

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS1

The NM_020937.4(FANCM):​c.926A>C​(p.Glu309Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000147 in 1,613,792 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. E309G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00080 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000079 ( 0 hom. )

Consequence

FANCM
NM_020937.4 missense

Scores

2
5
12

Clinical Significance

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

Conservation

PhyloP100: 7.97

Publications

1 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.12685248).
BP6
Variant 14-45151404-A-C is Benign according to our data. Variant chr14-45151404-A-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 313196.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000801 (122/152362) while in subpopulation AFR AF = 0.00281 (117/41590). AF 95% confidence interval is 0.0024. There are 0 homozygotes in GnomAd4. There are 65 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
FANCMNM_020937.4 linkc.926A>C p.Glu309Ala missense_variant Exon 5 of 23 ENST00000267430.10 NP_065988.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FANCMENST00000267430.10 linkc.926A>C p.Glu309Ala missense_variant Exon 5 of 23 1 NM_020937.4 ENSP00000267430.5

Frequencies

GnomAD3 genomes
AF:
0.000801
AC:
122
AN:
152244
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00282
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
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:
0.000175
AC:
44
AN:
250870
AF XY:
0.000162
show subpopulations
Gnomad AFR exome
AF:
0.00254
Gnomad AMR exome
AF:
0.0000289
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:
0.000327
GnomAD4 exome
AF:
0.0000794
AC:
116
AN:
1461430
Hom.:
0
Cov.:
30
AF XY:
0.0000688
AC XY:
50
AN XY:
727030
show subpopulations
African (AFR)
AF:
0.00287
AC:
96
AN:
33470
American (AMR)
AF:
0.0000224
AC:
1
AN:
44714
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26126
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39626
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86252
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53280
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000126
AC:
14
AN:
1111818
Other (OTH)
AF:
0.0000828
AC:
5
AN:
60376
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.481
Heterozygous variant carriers
0
7
13
20
26
33
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000801
AC:
122
AN:
152362
Hom.:
0
Cov.:
32
AF XY:
0.000872
AC XY:
65
AN XY:
74514
show subpopulations
African (AFR)
AF:
0.00281
AC:
117
AN:
41590
American (AMR)
AF:
0.000327
AC:
5
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.509
Heterozygous variant carriers
0
6
13
19
26
32
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000487
Hom.:
1
Bravo
AF:
0.000858
ESP6500AA
AF:
0.00227
AC:
10
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000222
AC:
27

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:1
Nov 29, 2022
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Apr 03, 2025
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Observed in unaffected controls, but not in any cases, from an ovarian cancer study (PMID: 28881617); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 33471991, 28881617) -

Hereditary cancer-predisposing syndrome Uncertain:1
Oct 29, 2021
Sema4, Sema4
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:curation

- -

Fanconi anemia Benign:1
Nov 18, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

FANCM-related disorder Benign:1
Mar 01, 2022
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
Benign
0.24
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Benign
-0.090
CADD
Uncertain
24
DANN
Uncertain
0.98
DEOGEN2
Benign
0.26
.;T;.
Eigen
Uncertain
0.48
Eigen_PC
Uncertain
0.51
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.72
T;T;T
M_CAP
Benign
0.017
T
MetaRNN
Benign
0.13
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.6
M;M;.
PhyloP100
8.0
PrimateAI
Uncertain
0.57
T
PROVEAN
Pathogenic
-4.7
D;D;D
REVEL
Benign
0.28
Sift
Benign
0.27
T;D;D
Sift4G
Benign
0.21
T;T;T
Polyphen
0.37
B;P;.
Vest4
0.91
MVP
0.57
MPC
0.16
ClinPred
0.12
T
GERP RS
5.2
Varity_R
0.35
gMVP
0.62
Mutation Taster
=41/59
disease causing

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

Other links and lift over

dbSNP: rs143006771; hg19: chr14-45620607; API