rs1367580

Positions:

• chr14-45175386-G-C
• chr14-45175386-G-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_020937.4(FANCM):​c.2632G>C​(p.Val878Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: FANCM NM_020937.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.306

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]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.028688133).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FANCM	NM_020937.4	c.2632G>C	p.Val878Leu	missense_variant	14/23	ENST00000267430.10	NP_065988.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FANCM	ENST00000267430.10	c.2632G>C	p.Val878Leu	missense_variant	14/23	1	NM_020937.4	ENSP00000267430	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 28

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.065
BayesDel_addAF	Benign	-0.42	T
BayesDel_noAF	Benign	-0.84
CADD	Benign	0.78
DANN	Benign	0.078
DEOGEN2	Benign	0.036	T;.;.
Eigen	Benign	-1.3
Eigen_PC	Benign	-1.2
FATHMM_MKL	Benign	0.14	N
LIST_S2	Benign	0.27	T;T;T
M_CAP	Benign	0.0019	T
MetaRNN	Benign	0.029	T;T;T
MetaSVM	Benign	-0.96	T
MutationAssessor	Benign	-2.0	N;.;.
MutationTaster	Benign	1.0	P;P
PrimateAI	Benign	0.24	T
PROVEAN	Benign	0.96	N;N;N
REVEL	Benign	0.070
Sift	Benign	1.0	T;T;T
Sift4G	Benign	0.93	T;T;T
Polyphen		0.0	B;.;.
Vest4		0.013
MutPred		0.21		Gain of catalytic residue at D876 (P = 0.0031);.;.;
MVP		0.18
MPC		0.083
ClinPred		0.036	T
GERP RS		4.1
Varity_R		0.043
gMVP		0.092

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

LitVar

Other links and lift over

dbSNP: rs1367580; hg19: chr14-45644589;