chr7-128850861-C-A

Position:

• chr7-128850861-C-A

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2 PP2 PP3_Moderate

The NM_001458.5(FLNC):​c.5457C>A​(p.Asp1819Glu) 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 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)
• Consequence: FLNC NM_001458.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -3.70

Genes affected

FLNC (HGNC:3756): (filamin C) This gene encodes one of three related filamin genes, specifically gamma filamin. These filamin proteins crosslink actin filaments into orthogonal networks in cortical cytoplasm and participate in the anchoring of membrane proteins for the actin cytoskeleton. Three functional domains exist in filamin: an N-terminal filamentous actin-binding domain, a C-terminal self-association domain, and a membrane glycoprotein-binding domain. Mutations in this gene are a cause of cardiopathy. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2022]

FLNC-AS1 (HGNC:53474): (FLNC antisense RNA 1)

ACMG classification

Verdict is Uncertain_significance. Variant got 5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), FLNC. . Gene score misZ 2.789 (greater than the threshold 3.09). Trascript score misZ 5.9457 (greater than threshold 3.09). GenCC has associacion of gene with dilated cardiomyopathy, heart conduction disease, familial isolated restrictive cardiomyopathy, hypertrophic cardiomyopathy 26, distal myopathy with posterior leg and anterior hand involvement, myofibrillar myopathy 5.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.857

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
FLNC	NM_001458.5	c.5457C>A	p.Asp1819Glu	missense_variant	33/48	ENST00000325888.13	NP_001449.3
FLNC-AS1	NR_149055.1	n.316-456G>T		intron_variant, non_coding_transcript_variant
FLNC	NM_001127487.2	c.5358C>A	p.Asp1786Glu	missense_variant	32/47		NP_001120959.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
FLNC	ENST00000325888.13	c.5457C>A	p.Asp1819Glu	missense_variant	33/48	1	NM_001458.5	ENSP00000327145	P3
FLNC	ENST00000346177.6	c.5358C>A	p.Asp1786Glu	missense_variant	32/47	1		ENSP00000344002	A1
FLNC-AS1	ENST00000469965.1	n.316-456G>T		intron_variant, non_coding_transcript_variant		4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000228 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.91
BayesDel_addAF	Uncertain	0.072	D
BayesDel_noAF	Benign	-0.13
CADD	Benign	7.2
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.74	D;.
Eigen	Benign	-0.75
Eigen_PC	Benign	-1.0
FATHMM_MKL	Benign	0.16	N
LIST_S2	Pathogenic	0.98	D;D
M_CAP	Uncertain	0.096	D
MetaRNN	Pathogenic	0.86	D;D
MetaSVM	Uncertain	-0.20	T
MutationAssessor	Uncertain	2.9	M;.
MutationTaster	Benign	0.85	N;N
PrimateAI	Pathogenic	0.79	T
PROVEAN	Uncertain	-3.8	D;D
REVEL	Uncertain	0.38
Sift	Uncertain	0.0010	D;D
Sift4G	Pathogenic	0.0010	D;D
Polyphen		1.0	D;P
Vest4		0.73
MutPred		0.81		Gain of glycosylation at T1821 (P = 0.14);.;
MVP		0.75
MPC		1.7
ClinPred		1.0	D
GERP RS		-9.1
Varity_R		0.67
gMVP		0.73

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: rs376660713; hg19: chr7-128490915;