14-45136054-T-A
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Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_020937.4(FANCM):c.23T>A(p.Leu8His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,396 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: not found (cov: 33)
Exomes 𝑓: 6.8e-7 ( 0 hom. )
Consequence
FANCM
NM_020937.4 missense
NM_020937.4 missense
Scores
4
11
4
Clinical Significance
Conservation
PhyloP100: 3.41
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]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 2 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
FANCM | NM_020937.4 | c.23T>A | p.Leu8His | missense_variant | 1/23 | ENST00000267430.10 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
FANCM | ENST00000267430.10 | c.23T>A | p.Leu8His | missense_variant | 1/23 | 1 | NM_020937.4 | P1 |
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD3 genomes
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33
GnomAD3 exomes AF: 0.00000402 AC: 1AN: 248700Hom.: 0 AF XY: 0.00000741 AC XY: 1AN XY: 135022
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GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461396Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1AN XY: 726994
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GnomAD4 genome Cov.: 33
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33
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Fanconi anemia Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Sep 18, 2023 | This sequence change replaces leucine, which is neutral and non-polar, with histidine, which is basic and polar, at codon 8 of the FANCM protein (p.Leu8His). This variant is present in population databases (rs753737880, gnomAD 0.0009%). This variant has not been reported in the literature in individuals affected with FANCM-related conditions. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Uncertain
D
BayesDel_noAF
Uncertain
CADD
Pathogenic
DANN
Uncertain
DEOGEN2
Uncertain
.;T;.
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
LIST_S2
Benign
T;T;T
M_CAP
Uncertain
D
MetaRNN
Uncertain
D;D;D
MetaSVM
Benign
T
MutationAssessor
Uncertain
M;M;M
MutationTaster
Benign
D;D;D
PrimateAI
Uncertain
T
PROVEAN
Pathogenic
D;D;D
REVEL
Benign
Sift
Pathogenic
D;D;D
Sift4G
Uncertain
D;D;D
Polyphen
D;D;.
Vest4
MutPred
Gain of catalytic residue at R6 (P = 0.0111);Gain of catalytic residue at R6 (P = 0.0111);Gain of catalytic residue at R6 (P = 0.0111);
MVP
MPC
0.53
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at