rs139382267

Variant summary

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

The NM_020937.4(FANCM):​c.3296G>A​(p.Arg1099His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000288 in 1,613,980 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict 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. R1099S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00081 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00023 ( 0 hom. )

Consequence

FANCM
NM_020937.4 missense

Scores

19

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:6

Conservation

PhyloP100: 1.87

Publications

4 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 -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0043137074).
BP6
Variant 14-45176050-G-A is Benign according to our data. Variant chr14-45176050-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 414849.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000814 (124/152244) while in subpopulation AFR AF = 0.00217 (90/41548). AF 95% confidence interval is 0.0018. There are 0 homozygotes in GnomAd4. There are 53 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.3296G>A p.Arg1099His missense_variant Exon 14 of 23 ENST00000267430.10 NP_065988.1 Q8IYD8-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
FANCMENST00000267430.10 linkc.3296G>A p.Arg1099His missense_variant Exon 14 of 23 1 NM_020937.4 ENSP00000267430.5 Q8IYD8-1

Frequencies

GnomAD3 genomes
AF:
0.000802
AC:
122
AN:
152126
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00212
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000393
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000944
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000382
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000355
AC:
89
AN:
250628
AF XY:
0.000332
show subpopulations
Gnomad AFR exome
AF:
0.00209
Gnomad AMR exome
AF:
0.000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.000139
Gnomad NFE exome
AF:
0.000345
Gnomad OTH exome
AF:
0.000328
GnomAD4 exome
AF:
0.000233
AC:
341
AN:
1461736
Hom.:
0
Cov.:
33
AF XY:
0.000237
AC XY:
172
AN XY:
727164
show subpopulations
African (AFR)
AF:
0.00227
AC:
76
AN:
33480
American (AMR)
AF:
0.000268
AC:
12
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39682
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86256
European-Finnish (FIN)
AF:
0.0000749
AC:
4
AN:
53398
Middle Eastern (MID)
AF:
0.000520
AC:
3
AN:
5768
European-Non Finnish (NFE)
AF:
0.000194
AC:
216
AN:
1111908
Other (OTH)
AF:
0.000464
AC:
28
AN:
60388
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
25
49
74
98
123
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.000814
AC:
124
AN:
152244
Hom.:
0
Cov.:
32
AF XY:
0.000712
AC XY:
53
AN XY:
74418
show subpopulations
African (AFR)
AF:
0.00217
AC:
90
AN:
41548
American (AMR)
AF:
0.000392
AC:
6
AN:
15298
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.0000944
AC:
1
AN:
10590
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000382
AC:
26
AN:
68014
Other (OTH)
AF:
0.000473
AC:
1
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.505
Heterozygous variant carriers
0
7
14
22
29
36
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:
0.000802
Hom.:
0
Bravo
AF:
0.000846
ESP6500AA
AF:
0.00227
AC:
10
ESP6500EA
AF:
0.000698
AC:
6
ExAC
AF:
0.000412
AC:
50
Asia WGS
AF:
0.000866
AC:
3
AN:
3478
EpiCase
AF:
0.000327
EpiControl
AF:
0.000178

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:4Benign:6
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:2Benign:1
May 08, 2023
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Nov 03, 2021
Institute for Clinical Genetics, University Hospital TU Dresden, University Hospital TU Dresden
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Apr 08, 2022
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 29351780, 30979843, 28881617) -

Aplastic anemia Uncertain:1
Jan 31, 2020
Genetics and Molecular Pathology, SA Pathology
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Hereditary cancer-predisposing syndrome Uncertain:1
Nov 02, 2021
Sema4, Sema4
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:curation

- -

not specified Benign:1
Apr 21, 2021
Genetic Services Laboratory, University of Chicago
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Premature ovarian failure 15 Benign:1
Jul 07, 2023
KCCC/NGS Laboratory, Kuwait Cancer Control Center
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Fanconi anemia Benign:1
Jan 06, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Fanconi anemia complementation group A Benign:1
May 28, 2019
Mendelics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

FANCM-related disorder Benign:1
Jun 02, 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
0.056
BayesDel_addAF
Benign
-0.62
T
BayesDel_noAF
Benign
-0.67
CADD
Benign
1.3
DANN
Benign
0.11
DEOGEN2
Benign
0.040
T;.;.
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.00067
N
LIST_S2
Benign
0.65
T;T;T
M_CAP
Benign
0.0024
T
MetaRNN
Benign
0.0043
T;T;T
MetaSVM
Benign
-0.98
T
MutationAssessor
Benign
-1.0
N;.;.
PhyloP100
1.9
PrimateAI
Benign
0.18
T
PROVEAN
Benign
1.6
N;N;N
REVEL
Benign
0.067
Sift
Benign
1.0
T;T;T
Sift4G
Benign
0.79
T;T;T
Polyphen
0.0010
B;.;.
Vest4
0.024
MVP
0.19
MPC
0.11
ClinPred
0.0031
T
GERP RS
3.0
PromoterAI
0.012
Neutral
Varity_R
0.020
gMVP
0.30
Mutation Taster
=98/2
polymorphism

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: rs139382267; hg19: chr14-45645253; API