rs876661083

Variant names:

• chr9-95150086-T-C
• rs876661083
• NM_000136.3:c.523A>G

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_000136.3(FANCC):​c.523A>G​(p.Met175Val) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,844 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/24 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000034 (0 hom.)
• Consequence: FANCC NM_000136.3 missense, splice_region
• Scores: Splicing: ADA: 0.0006657
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:5
• Conservation: PhyloP100: 0.937
• Publications: 0 publications found

Genes affected

FANCC (HGNC:3584): (FA complementation group C) 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 C. [provided by RefSeq, Jul 2008]

AOPEP (HGNC:1361): (aminopeptidase O (putative)) This gene encodes a member of the M1 zinc aminopeptidase family. The encoded protein is a zinc-dependent metallopeptidase that catalyzes the removal of an amino acid from the amino terminus of a protein or peptide. This protein may play a role in the generation of angiotensin IV. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Oct 2010]

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.26974744).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000136.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FANCC	NM_000136.3	MANE Select	c.523A>G	p.Met175Val	missense splice_region	Exon 7 of 15	NP_000127.2	Q00597
	FANCC	NM_001243743.2		c.523A>G	p.Met175Val	missense splice_region	Exon 7 of 15	NP_001230672.1	A0A024R9N2
	FANCC	NM_001243744.2		c.523A>G	p.Met175Val	missense splice_region	Exon 7 of 14	NP_001230673.1	A0A087WW44

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FANCC	ENST00000289081.8	TSL:1 MANE Select	c.523A>G	p.Met175Val	missense splice_region	Exon 7 of 15	ENSP00000289081.3	Q00597
	FANCC	ENST00000375305.6	TSL:1	c.523A>G	p.Met175Val	missense splice_region	Exon 7 of 15	ENSP00000364454.1	Q00597
	FANCC	ENST00000490972.7	TSL:1	c.523A>G	p.Met175Val	missense splice_region	Exon 7 of 14	ENSP00000479931.1	A0A087WW44

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251264 AF XY: 0.00000736

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000880

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000342 AC: 5 AN: 1461844 Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2 AN XY: 727220

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86246

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53406

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000450 AC: 5 AN: 1111994

Other (OTH) AF: 0.00 AC: 0 AN: 60394

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000508 Hom.: 0

Bravo AF: 0.00000378

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	2	-	Fanconi anemia (2)
-	1	-	Fanconi anemia complementation group C (1)
-	1	-	Hereditary cancer-predisposing syndrome (1)
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Benign	-0.084	T
BayesDel_noAF	Benign	-0.36
CADD	Benign	17
DANN	Benign	0.90
DEOGEN2	Benign	0.067	T
Eigen	Benign	0.016
Eigen_PC	Benign	0.026
FATHMM_MKL	Uncertain	0.89	D
LIST_S2	Benign	0.66	T
M_CAP	Benign	0.011	T
MetaRNN	Benign	0.27	T
MetaSVM	Benign	-0.89	T
MutationAssessor	Uncertain	2.1	M
PhyloP100		0.94
PrimateAI	Benign	0.40	T
PROVEAN	Benign	-0.53	N
REVEL	Benign	0.23
Sift	Benign	0.36	T
Sift4G	Benign	0.20	T
Polyphen		0.80	P
Vest4		0.21
MutPred		0.70		Loss of helix (P = 0.0558)
MVP		0.69
MPC		0.11
ClinPred		0.22	T
GERP RS		4.8
Varity_R		0.14
gMVP		0.28
Mutation Taster		=87/13	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.00067
dbscSNV1_RF	Benign	0.014
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs876661083; hg19: chr9-97912368;