16-89792505-C-G

Variant names:

• chr16-89792505-C-G
• NM_000135.4:c.1049G>C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_000135.4(FANCA):​c.1049G>C​(p.Arg350Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,158 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000034 (0 hom.)
• Consequence: FANCA NM_000135.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0850

Genes affected

FANCA (HGNC:3582): (FA complementation group A) 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 A. Alternative splicing results in multiple transcript variants encoding different isoforms. Mutations in this gene are the most common cause of Fanconi anemia. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.79

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FANCA	NM_000135.4	c.1049G>C	p.Arg350Pro	missense_variant	Exon 12 of 43	ENST00000389301.8	NP_000126.2
FANCA	NM_001286167.3	c.1049G>C	p.Arg350Pro	missense_variant	Exon 12 of 43		NP_001273096.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FANCA	ENST00000389301.8	c.1049G>C	p.Arg350Pro	missense_variant	Exon 12 of 43	1	NM_000135.4	ENSP00000373952.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000342 AC: 5 AN: 1461158 Hom.: 0 Cov.: 32 AF XY: 0.00000413 AC XY: 3 AN XY: 726874

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000450

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.80
BayesDel_addAF	Benign	-0.0045	T
BayesDel_noAF	Benign	-0.24
CADD	Benign	18
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.54	D;.
Eigen	Benign	-0.25
Eigen_PC	Benign	-0.41
FATHMM_MKL	Benign	0.64	D
LIST_S2	Uncertain	0.89	D;D
M_CAP	Uncertain	0.11	D
MetaRNN	Pathogenic	0.79	D;D
MetaSVM	Benign	-0.77	T
MutationAssessor	Uncertain	2.3	M;M
PrimateAI	Benign	0.31	T
PROVEAN	Uncertain	-3.7	D;D
REVEL	Uncertain	0.31
Sift	Uncertain	0.0050	D;D
Sift4G	Uncertain	0.011	D;D
Polyphen		0.97	D;.
Vest4		0.71
MutPred		0.53		Loss of MoRF binding (P = 0.0076);Loss of MoRF binding (P = 0.0076);
MVP		0.83
ClinPred		0.96	D
GERP RS		-1.6
Varity_R		0.70
gMVP		0.61

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr16-89858913;